[Bug tree-optimization/86141] C++ Related Optimization Problem
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86141 --- Comment #17 from ASA --- It would seem that the heuristics problem has something to do with the same function being called more than once from main. I conducted the following experiments: * Repeating the call to DisplayView1Type * Commenting the second call to DisplayViewType And in each case when a specific function was called more than once, the compiler refused to inline the function invocation from main. In case this helps.
[Bug c++/86186] Unqualified calls of std::get lead to ADL issues
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86186 --- Comment #4 from Jonathan Wakely --- If you want to suggest that GCC should have a new warning, then say that. Don't past valid code and incorrectly claim that clang rejects it, or provide a link to a bug in libc++ which is completely irrelevant to GCC (we don't care that libc++ had a bug and then fixed it, that's not a GCC problem!) I've spent hours and hours processing your bug reports this week, and far too many of them have been confusing, poorly described, or just plain wrong. SOme have been real bugs, so thank you for that, but you're also causing me to waste a lot of time.
[Bug c++/86186] Unqualified calls of std::get lead to ADL issues
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86186 --- Comment #3 from Jonathan Wakely --- (In reply to zhonghao from comment #2) > (In reply to Jonathan Wakely from comment #1) > > (In reply to zhonghao from comment #0) > > > A previous version of clang++ does not produce any error messages for the > > > above code, but it was fixed in > > > https://bugs.llvm.org/show_bug.cgi?id=20092 > > > > No, you've completely misunderstood the llvm bug report. > > Never the less, g++ accepts the code, but clang++ rejects it, right? No, clang accepts it. Do you understand any of the bugs you're reporting? You seem to be blindly copying code between bugzillas and making totally incorrect claims about what the other compiler does. > My g++ is 8.0.1 20180413, my clang++ is 7.0.0 (trunk 329990). > > The warning message of clang++ is as follow: > 17:5: warning: equality comparison result unused > [-Wunused-comparison] > t1 == t2; // error: static_assert failed "" > ~~~^ > code2.c.cpp:17:5: note: use '=' to turn this equality comparison into an > assignment > t1 == t2; // error: static_assert failed "" > ^~ > = > 1 warning generated. > > The message sounds reasonable, but g++ does not produce any warning > messages. Shall g++ make the improvement? We already have an enhancement request to add something like clang's -Wunused-comparison, see PR 53598
[Bug c++/86186] Unqualified calls of std::get lead to ADL issues
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86186 --- Comment #2 from zhonghao at pku dot org.cn --- (In reply to Jonathan Wakely from comment #1) > (In reply to zhonghao from comment #0) > > A previous version of clang++ does not produce any error messages for the > > above code, but it was fixed in https://bugs.llvm.org/show_bug.cgi?id=20092 > > No, you've completely misunderstood the llvm bug report. Never the less, g++ accepts the code, but clang++ rejects it, right? My g++ is 8.0.1 20180413, my clang++ is 7.0.0 (trunk 329990). The warning message of clang++ is as follow: 17:5: warning: equality comparison result unused [-Wunused-comparison] t1 == t2; // error: static_assert failed "" ~~~^ code2.c.cpp:17:5: note: use '=' to turn this equality comparison into an assignment t1 == t2; // error: static_assert failed "" ^~ = 1 warning generated. The message sounds reasonable, but g++ does not produce any warning messages. Shall g++ make the improvement?
[Bug fortran/86281] [9 regression] SEGV in fortran/resolve.c:resolve_function
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86281 --- Comment #7 from Steve Kargl --- On Fri, Jun 22, 2018 at 10:36:04PM +, pault at gcc dot gnu.org wrote: > > I don't know how this got past my regtesting... > > The regression on assumed_charlen_function_7.f90 was entirely my > fault. I found the failure, corrected on my tree after saving > the diff and then cleaned the tree for another commit. > Result - the legacy option was lost. Thanks for the quick fix. I know the joy of juggling patches for several different bugs leading to this type of problem.
[Bug fortran/86281] [9 regression] SEGV in fortran/resolve.c:resolve_function
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86281 --- Comment #6 from Paul Thomas --- Hi Rainer and Steve, I don't know how this got past my regtesting... The regression on assumed_charlen_function_7.f90 was entirely my fault. I found the failure, corrected on my tree after saving the diff and then cleaned the tree for another commit. Result - the legacy option was lost. Mea culpa, mea maxima culpa. Paul
[Bug fortran/86281] [9 regression] SEGV in fortran/resolve.c:resolve_function
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86281 --- Comment #5 from Paul Thomas --- Author: pault Date: Fri Jun 22 22:31:17 2018 New Revision: 261975 URL: https://gcc.gnu.org/viewcvs?rev=261975=gcc=rev Log: 2018-06-22 Paul Thomas Rainer Orth PR fortran/86281 * resolve.c (resolve_contained_fntype): Check for the charlen before testing the length. 2018-06-22 Paul Thomas PR fortran/86281 * gfortran.dg/assumed_charlen_function_7.f90: Add -std=legacy. Modified: trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/resolve.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gfortran.dg/assumed_charlen_function_7.f90
[Bug c++/86219] [8/9 Regression] ICE in coerce_template_parms, at cp/pt.c:8515
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86219 Jason Merrill changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #5 from Jason Merrill --- Fixed.
[Bug c++/86219] [8/9 Regression] ICE in coerce_template_parms, at cp/pt.c:8515
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86219 --- Comment #3 from Jason Merrill --- Author: jason Date: Fri Jun 22 21:57:07 2018 New Revision: 261972 URL: https://gcc.gnu.org/viewcvs?rev=261972=gcc=rev Log: PR c++/86219 - ICE with erroneous initializer in template. * constexpr.c (fold_non_dependent_expr): Add complain parm. * call.c, expr.c, init.c, pt.c, semantics.c, typeck.c, typeck2.c: Pass it. * call.c (build_cxx_call): Don't mess with builtins in a template. * typeck2.c (store_init_value): If fold_non_dependent_expr didn't produce a constant value, go back to the uninstantiated form. Added: trunk/gcc/testsuite/g++.dg/template/conv15.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/call.c trunk/gcc/cp/constexpr.c trunk/gcc/cp/cp-tree.h trunk/gcc/cp/expr.c trunk/gcc/cp/init.c trunk/gcc/cp/pt.c trunk/gcc/cp/semantics.c trunk/gcc/cp/typeck.c trunk/gcc/cp/typeck2.c
[Bug c++/86219] [8/9 Regression] ICE in coerce_template_parms, at cp/pt.c:8515
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86219 --- Comment #4 from Jason Merrill --- Author: jason Date: Fri Jun 22 21:57:32 2018 New Revision: 261973 URL: https://gcc.gnu.org/viewcvs?rev=261973=gcc=rev Log: PR c++/86219 - ICE with erroneous initializer in template. * constexpr.c (fold_non_dependent_expr): Add complain parm. * typeck2.c (store_init_value): Pass tf_warning_or_error. Added: branches/gcc-8-branch/gcc/testsuite/g++.dg/template/conv15.C Modified: branches/gcc-8-branch/gcc/cp/ChangeLog branches/gcc-8-branch/gcc/cp/constexpr.c branches/gcc-8-branch/gcc/cp/cp-tree.h branches/gcc-8-branch/gcc/cp/typeck2.c
[Bug target/85358] PowerPC: Using -mabi=ieeelongdouble -mcpu=power9 breaks __ibm128
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85358 Michael Meissner changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #3 from Michael Meissner --- Fixed in the trunk and on the GCC 8.x branch.
[Bug target/85657] Make __ibm128 a separate type, even if long double uses the IBM double-double format
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85657 Michael Meissner changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #8 from Michael Meissner --- Originally as the problem report said we thought __ibm128 and __float128 should be separate types from the long double type. On June 5th, 2018, we changed the compiler to use the long double type for __ibm128 if the default long double type is IBM extended double and __float128 if the default long double type is IEEE 128-bit. We made the default mangling for __ibm128 be "g", the same as long double using IBM extended double format. The changes have also been backported to GCC 8.x.
[Bug c++/86210] [6/7 Regression] Missing -Wnonnull warning for function defined in the same TU
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86210 --- Comment #7 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:33:58 2018 New Revision: 261970 URL: https://gcc.gnu.org/viewcvs?rev=261970=gcc=rev Log: Backported from mainline 2018-06-20 Jakub Jelinek PR c++/86210 * c-common.c (check_nonnull_arg): Use fold_for_warn. Adjust obsolete comment. * g++.dg/warn/Wnonnull4.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/warn/Wnonnull4.C Modified: branches/gcc-7-branch/gcc/c-family/ChangeLog branches/gcc-7-branch/gcc/c-family/c-common.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug tree-optimization/86231] [6/7 Regression] vrp_meet causes wrong-code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86231 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:33:07 2018 New Revision: 261969 URL: https://gcc.gnu.org/viewcvs?rev=261969=gcc=rev Log: Backported from mainline 2018-06-20 Jakub Jelinek PR tree-optimization/86231 * tree-vrp.c (union_ranges): For ( [ ) ] or ( )[ ] range and anti-range don't overwrite *vr0min before using it to compute *vr0max. * gcc.dg/tree-ssa/vrp119.c: New test. * gcc.c-torture/execute/pr86231.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.c-torture/execute/pr86231.c branches/gcc-7-branch/gcc/testsuite/gcc.dg/tree-ssa/vrp119.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/testsuite/ChangeLog branches/gcc-7-branch/gcc/tree-vrp.c
[Bug middle-end/85878] [6/7 Regression] ICE in convert_mode_scalar, at expr.c:287
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85878 --- Comment #6 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:30:06 2018 New Revision: 261968 URL: https://gcc.gnu.org/viewcvs?rev=261968=gcc=rev Log: Backported from mainline 2018-06-15 Jakub Jelinek PR middle-end/85878 * expr.c (expand_assignment): Only call store_expr for halves if the mode is the same. * gfortran.fortran-torture/compile/pr85878.f90: New test. Added: branches/gcc-7-branch/gcc/testsuite/gfortran.fortran-torture/compile/pr85878.f90 Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/expr.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug target/85945] [6/7 Regression] ICE in resolve_subreg_use, at lower-subreg.c:751
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85945 --- Comment #8 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:29:24 2018 New Revision: 261967 URL: https://gcc.gnu.org/viewcvs?rev=261967=gcc=rev Log: Backported from mainline 2018-06-14 Jakub Jelinek PR target/85945 * lower-subreg.c (find_decomposable_subregs): Don't decompose float subregs of multi-word pseudos unless the float mode has word size. * gcc.c-torture/compile/pr85945.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.c-torture/compile/pr85945.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/lower-subreg.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/86025] ICE with -Wduplicated-branches and OpenMP critical
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86025 --- Comment #4 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:28:36 2018 New Revision: 261966 URL: https://gcc.gnu.org/viewcvs?rev=261966=gcc=rev Log: Backported from mainline 2018-06-04 Jakub Jelinek PR c++/86025 * tree.c (inchash::add_expr): Handle IDENTIFIER_NODE. * c-c++-common/gomp/pr86025.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/c-c++-common/gomp/pr86025.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/testsuite/ChangeLog branches/gcc-7-branch/gcc/tree.c
[Bug c/85696] OpenMP with variably modified and default(none) won't compile
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85696 --- Comment #9 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:27:25 2018 New Revision: 261964 URL: https://gcc.gnu.org/viewcvs?rev=261964=gcc=rev Log: Backported from mainline 2018-05-11 Jakub Jelinek PR c/85696 * c-omp.c (c_omp_predetermined_sharing): Return OMP_CLAUSE_DEFAULT_SHARED for artificial vars with integral type. * c-typeck.c (c_finish_omp_clauses): Don't use c_omp_predetermined_sharing, instead just check TREE_READONLY. * cp-tree.h (cxx_omp_predetermined_sharing_1): New prototype. * cp-gimplify.c (cxx_omp_predetermined_sharing): New wrapper around cxx_omp_predetermined_sharing_1. Rename old function to ... (cxx_omp_predetermined_sharing_1): ... this. * semantics.c (finish_omp_clauses): Use cxx_omp_predetermined_sharing_1 instead of cxx_omp_predetermined_sharing. * c-c++-common/gomp/pr85696.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/c-c++-common/gomp/pr85696.c
[Bug c++/85952] Bogus -Wunused-but-set-variable warning with array structured binding
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85952 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:27:41 2018 New Revision: 261965 URL: https://gcc.gnu.org/viewcvs?rev=261965=gcc=rev Log: Backported from mainline 2018-05-29 Jakub Jelinek PR c++/85952 * init.c (build_aggr_init): For structured binding initialized from array call mark_rvalue_use on the initializer. * g++.dg/warn/Wunused-var-33.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/warn/Wunused-var-33.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/init.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c/85696] OpenMP with variably modified and default(none) won't compile
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85696 --- Comment #8 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:25:04 2018 New Revision: 261963 URL: https://gcc.gnu.org/viewcvs?rev=261963=gcc=rev Log: Backported from mainline 2018-05-11 Jakub Jelinek PR c/85696 * c-omp.c (c_omp_predetermined_sharing): Return OMP_CLAUSE_DEFAULT_SHARED for artificial vars with integral type. * c-typeck.c (c_finish_omp_clauses): Don't use c_omp_predetermined_sharing, instead just check TREE_READONLY. * cp-tree.h (cxx_omp_predetermined_sharing_1): New prototype. * cp-gimplify.c (cxx_omp_predetermined_sharing): New wrapper around cxx_omp_predetermined_sharing_1. Rename old function to ... (cxx_omp_predetermined_sharing_1): ... this. * semantics.c (finish_omp_clauses): Use cxx_omp_predetermined_sharing_1 instead of cxx_omp_predetermined_sharing. * c-c++-common/gomp/pr85696.c: New test. Modified: branches/gcc-7-branch/gcc/c-family/ChangeLog branches/gcc-7-branch/gcc/c-family/c-omp.c branches/gcc-7-branch/gcc/c/ChangeLog branches/gcc-7-branch/gcc/c/c-typeck.c branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/cp-gimplify.c branches/gcc-7-branch/gcc/cp/cp-tree.h branches/gcc-7-branch/gcc/cp/semantics.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/85662] [8/9 Regression] "error: non-constant condition for static assertion" from __builtin_offsetof in C++
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85662 --- Comment #12 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:23:03 2018 New Revision: 261962 URL: https://gcc.gnu.org/viewcvs?rev=261962=gcc=rev Log: Backported from mainline 2018-06-22 Jakub Jelinek PR c++/85662 * g++.dg/ext/offsetof3.C: New test. 2018-05-10 Jakub Jelinek PR c++/85662 * c-common.h (fold_offsetof_1): Removed. (fold_offsetof): Add TYPE argument defaulted to size_type_node and CTX argument defaulted to ERROR_MARK. * c-common.c (fold_offsetof_1): Renamed to ... (fold_offsetof): ... this. Remove wrapper function. Add TYPE argument, convert the pointer constant to TYPE and use size_binop with PLUS_EXPR instead of fold_build_pointer_plus if type is not a pointer type. Adjust recursive calls. * c-fold.c (c_fully_fold_internal): Use fold_offsetof rather than fold_offsetof_1, pass TREE_TYPE (expr) as TYPE to it and drop the fold_convert_loc. * c-typeck.c (build_unary_op): Use fold_offsetof rather than fold_offsetof_1, pass argtype as TYPE to it and drop the fold_convert_loc. * cp-gimplify.c (cp_fold): Use fold_offsetof rather than fold_offsetof_1, pass TREE_TYPE (x) as TYPE to it and drop the fold_convert. * g++.dg/ext/offsetof2.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/ext/offsetof2.C branches/gcc-7-branch/gcc/testsuite/g++.dg/ext/offsetof3.C Modified: branches/gcc-7-branch/gcc/c-family/ChangeLog branches/gcc-7-branch/gcc/c-family/c-common.c branches/gcc-7-branch/gcc/c-family/c-common.h branches/gcc-7-branch/gcc/c/ChangeLog branches/gcc-7-branch/gcc/c/c-fold.c branches/gcc-7-branch/gcc/c/c-typeck.c branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/cp-gimplify.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/85659] [6/7 Regression] ICE with inline assembly inside virtual function
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85659 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:20:53 2018 New Revision: 261961 URL: https://gcc.gnu.org/viewcvs?rev=261961=gcc=rev Log: Backported from mainline 2018-05-06 Jakub Jelinek PR c++/85659 * cfgexpand.c (expand_asm_stmt): Don't create a temporary if the type is addressable. Don't force op into register if it has BLKmode. * g++.dg/ext/asm14.C: New test. * g++.dg/ext/asm15.C: New test. * g++.dg/ext/asm16.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/ext/asm14.C branches/gcc-7-branch/gcc/testsuite/g++.dg/ext/asm15.C branches/gcc-7-branch/gcc/testsuite/g++.dg/ext/asm16.C Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/cfgexpand.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug web/85578] broken links in gcc-8.0.1-RC-20180427/INSTALL/specific.html, and out of date prerequisites.html
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85578 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:20:02 2018 New Revision: 261960 URL: https://gcc.gnu.org/viewcvs?rev=261960=gcc=rev Log: Backported from mainline 2018-05-01 Jakub Jelinek PR web/85578 * doc/install.texi2html: Replace _002d with - and _002a with * in generated html files using sed. Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/doc/install.texi2html
[Bug tree-optimization/85529] [7 Regression] wrong code at -O2 and -O3 on x86_64-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85529 --- Comment #10 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:19:32 2018 New Revision: 261959 URL: https://gcc.gnu.org/viewcvs?rev=261959=gcc=rev Log: Backported from mainline 2018-04-27 Jakub Jelinek PR tree-optimization/85529 * tree-ssa-reassoc.c (optimize_range_tests_var_bound): Add FIRST_BB argument. Don't call get_nonzero_bits if opcode is ERROR_MARK_NODE, rhs2 def stmt's bb is dominated by first_bb and it isn't an obvious zero extension or masking of the MSB bit. (optimize_range_tests): Add FIRST_BB argument, pass it through to optimize_range_tests_var_bound. (maybe_optimize_range_tests, reassociate_bb): Adjust optimize_range_tests callers. * gcc.c-torture/execute/pr85529-1.c: New test. * gcc.c-torture/execute/pr85529-2.c: New test. * gcc.dg/pr85529.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.c-torture/execute/pr85529-1.c branches/gcc-7-branch/gcc/testsuite/gcc.c-torture/execute/pr85529-2.c branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr85529.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/testsuite/ChangeLog branches/gcc-7-branch/gcc/tree-ssa-reassoc.c
[Bug tree-optimization/85446] [7 Regression] wrong-code on riscv64
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85446 --- Comment #4 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:18:32 2018 New Revision: 261958 URL: https://gcc.gnu.org/viewcvs?rev=261958=gcc=rev Log: Backported from mainline 2018-04-19 Jakub Jelinek PR tree-optimization/85446 * match.pd ((intptr_t) x eq/ne CST to x eq/ne (typeof x) cst): Require the integral and pointer types to have the same precision. Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/match.pd
[Bug jit/85384] libgccjit does not work if --with-gcc-major-version is used
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85384 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:16:41 2018 New Revision: 261957 URL: https://gcc.gnu.org/viewcvs?rev=261957=gcc=rev Log: 2018-06-22 Jakub Jelinek Backported from mainline 2018-04-18 David Malcolm PR jit/85384 * acx.m4 (GCC_BASE_VER): Remove \$\$ from sed expression. * configure.ac (gcc-driver-name.h): Honor --with-gcc-major-version by using gcc_base_ver to generate a gcc_driver_version, and use it when generating GCC_DRIVER_NAME. * configure: Regenerate. * configure: Regenerate. Modified: branches/gcc-7-branch/ChangeLog branches/gcc-7-branch/config/ChangeLog branches/gcc-7-branch/config/acx.m4 branches/gcc-7-branch/configure branches/gcc-7-branch/fixincludes/ChangeLog branches/gcc-7-branch/fixincludes/configure branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/configure branches/gcc-7-branch/gcc/configure.ac branches/gcc-7-branch/libada/ChangeLog branches/gcc-7-branch/libada/configure branches/gcc-7-branch/libatomic/ChangeLog branches/gcc-7-branch/libatomic/configure branches/gcc-7-branch/libcc1/ChangeLog branches/gcc-7-branch/libcc1/configure branches/gcc-7-branch/libcilkrts/ChangeLog branches/gcc-7-branch/libcilkrts/configure branches/gcc-7-branch/libffi/ChangeLog branches/gcc-7-branch/libffi/configure branches/gcc-7-branch/libgcc/ChangeLog branches/gcc-7-branch/libgcc/configure branches/gcc-7-branch/libgfortran/ChangeLog branches/gcc-7-branch/libgfortran/configure branches/gcc-7-branch/libgomp/ChangeLog branches/gcc-7-branch/libgomp/configure branches/gcc-7-branch/libhsail-rt/ChangeLog branches/gcc-7-branch/libhsail-rt/configure branches/gcc-7-branch/libitm/ChangeLog branches/gcc-7-branch/libitm/configure branches/gcc-7-branch/libmpx/ChangeLog branches/gcc-7-branch/libmpx/configure branches/gcc-7-branch/libobjc/ChangeLog branches/gcc-7-branch/libobjc/configure branches/gcc-7-branch/liboffloadmic/ChangeLog branches/gcc-7-branch/liboffloadmic/configure branches/gcc-7-branch/liboffloadmic/plugin/configure branches/gcc-7-branch/libquadmath/ChangeLog branches/gcc-7-branch/libquadmath/configure branches/gcc-7-branch/libsanitizer/ChangeLog branches/gcc-7-branch/libsanitizer/configure branches/gcc-7-branch/libssp/ChangeLog branches/gcc-7-branch/libssp/configure branches/gcc-7-branch/libstdc++-v3/ChangeLog branches/gcc-7-branch/libstdc++-v3/configure branches/gcc-7-branch/libvtv/ChangeLog branches/gcc-7-branch/libvtv/configure
[Bug c++/86288] New: Recognize __gnu and/or __gnu__ as attribute-namespace
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86288 Bug ID: 86288 Summary: Recognize __gnu and/or __gnu__ as attribute-namespace Product: gcc Version: 9.0 Status: UNCONFIRMED Severity: enhancement Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: redi at gcc dot gnu.org Target Milestone: --- Libstdc++ can't use C++11 attribute syntax for GNU-specific attributes like [[gnu::nonnull]], because those identifiers are not reserved names. We can use __nonnull__ but only "gnu" is recognized for the namespace. Could G++ be extended to also accept [[__gnu__::__nonnull__]] ? __gnu__ doesn't seem to clash with anything predefined by GCC, or defined by Glibc.
[Bug c++/84463] [6/7 Regression] Supposedly-incompliant "error: '* key0' is not a constant expression"
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84463 --- Comment #7 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:12:32 2018 New Revision: 261956 URL: https://gcc.gnu.org/viewcvs?rev=261956=gcc=rev Log: Backported from mainline 2018-04-18 Jakub Jelinek PR c++/84463 * typeck.c (cp_build_addr_expr_1): Move handling of offsetof-like tricks from here to ... * cp-gimplify.c (cp_fold) : ... here. Only use it if INDIRECT_REF's operand is INTEGER_CST cast to pointer type. * g++.dg/cpp0x/constexpr-nullptr-1.C: Add -O1 to dg-options. * g++.dg/cpp0x/constexpr-nullptr-2.C: Expect different diagnostics in two cases. Uncomment two other tests and add expected dg-error for them. * g++.dg/init/struct2.C: Cast to int rather than long to avoid -Wnarrowing diagnostics on some targets for c++11. * g++.dg/parse/array-size2.C: Remove xfail. * g++.dg/cpp0x/constexpr-84463.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp0x/constexpr-84463.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/cp-gimplify.c branches/gcc-7-branch/gcc/cp/typeck.c branches/gcc-7-branch/gcc/testsuite/ChangeLog branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp0x/constexpr-nullptr-1.C branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp0x/constexpr-nullptr-2.C branches/gcc-7-branch/gcc/testsuite/g++.dg/init/struct2.C branches/gcc-7-branch/gcc/testsuite/g++.dg/parse/array-size2.C
[Bug rtl-optimization/85431] UBSAN: ../../gcc/dse.c:303:15: runtime error: shift exponent 64 is too large for 64-bit type 'long unsigned int'
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85431 --- Comment #4 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:11:28 2018 New Revision: 261955 URL: https://gcc.gnu.org/viewcvs?rev=261955=gcc=rev Log: Backported from mainline 2018-04-17 Jakub Jelinek PR rtl-optimization/85431 * dse.c (record_store): Ignore zero width stores. Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/dse.c
[Bug target/85430] [7 Regression] ICE: SIGSEGV in memory_operand at recog.c:1358/9 with -O2 -fno-tree-ccp -fno-tree-fre
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85430 --- Comment #6 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:10:59 2018 New Revision: 261954 URL: https://gcc.gnu.org/viewcvs?rev=261954=gcc=rev Log: Backported from mainline 2018-04-17 Jakub Jelinek PR target/85430 * config/i386/i386.md (*ashlqi3_1_slp): Use alu1 type instead of alu. * gcc.dg/pr85430.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr85430.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/config/i386/i386.md branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug rtl-optimization/85300] [6/7 Regression] ICE in exact_int_to_float_conversion_p, at simplify-rtx.c:895
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85300 --- Comment #9 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:10:17 2018 New Revision: 261953 URL: https://gcc.gnu.org/viewcvs?rev=261953=gcc=rev Log: Backported from mainline 2018-04-10 Jakub Jelinek PR rtl-optimization/85300 * combine.c (subst): Handle subst of CONST_SCALAR_INT_P new_rtx also into FLOAT and UNSIGNED_FLOAT like ZERO_EXTEND, return a CLOBBER if simplify_unary_operation fails. * gcc.dg/pr85300.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr85300.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/combine.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug fortran/85313] gcc/fortran/openmp.c: 2 * confused logic ?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85313 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:09:32 2018 New Revision: 261952 URL: https://gcc.gnu.org/viewcvs?rev=261952=gcc=rev Log: Backported from mainline 2018-04-10 Jakub Jelinek PR fortran/85313 * openmp.c (resolve_omp_do): Remove bogus if (j < i) break;. (resolve_oacc_nested_loops): Likewise. Formatting fix. * gfortran.dg/gomp/pr85313.f90: New test. Added: branches/gcc-7-branch/gcc/testsuite/gfortran.dg/gomp/pr85313.f90 Modified: branches/gcc-7-branch/gcc/fortran/ChangeLog branches/gcc-7-branch/gcc/fortran/openmp.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug tree-optimization/85257] [6/7 Regression] wrong code with -O -fno-tree-ccp and reading zeroed vector member
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85257 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:08:47 2018 New Revision: 261951 URL: https://gcc.gnu.org/viewcvs?rev=261951=gcc=rev Log: Backported from mainline 2018-04-07 Jakub Jelinek PR tree-optimization/85257 * fold-const.c (native_encode_vector): If not all elts could fit and off is -1, return 0 rather than offset. * tree-ssa-sccvn.c (vn_reference_lookup_3): Pass (offset - offset2) / BITS_PER_UNIT as 4th argument to native_encode_expr. Verify len * BITS_PER_UNIT >= maxsizei. Don't adjust buffer in native_interpret_expr call. * gcc.dg/pr85257.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr85257.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/fold-const.c branches/gcc-7-branch/gcc/testsuite/ChangeLog branches/gcc-7-branch/gcc/tree-ssa-sccvn.c
[Bug debug/85252] [6/7 Regression] ICE with -g for static zero-length array initialization
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85252 --- Comment #8 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:08:00 2018 New Revision: 261950 URL: https://gcc.gnu.org/viewcvs?rev=261950=gcc=rev Log: Backported from mainline 2018-04-06 Jakub Jelinek PR debug/85252 * dwarf2out.c (rtl_for_decl_init): For STRING_CST initializer only build CONST_STRING if TYPE_MAX_VALUE is non-NULL and is INTEGER_CST. * gcc.dg/debug/pr85252.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/debug/pr85252.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/dwarf2out.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/85210] [7 Regression] ICE with broken structured binding in template
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85210 --- Comment #6 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:07:16 2018 New Revision: 261949 URL: https://gcc.gnu.org/viewcvs?rev=261949=gcc=rev Log: Backported from mainline 2018-04-06 Jakub Jelinek PR c++/85210 * pt.c (tsubst_decomp_names): Return error_mark_node and assert errorcount is set if tsubst doesn't return a VAR_DECL. * g++.dg/cpp1z/decomp42.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp1z/decomp42.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/pt.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/85208] ICE with #pragma weak and structured binding
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85208 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:06:41 2018 New Revision: 261948 URL: https://gcc.gnu.org/viewcvs?rev=261948=gcc=rev Log: Backported from mainline 2018-04-05 Jakub Jelinek PR c++/85208 * decl.c (start_decl): For DECL_DECOMPOSITION_P decls, don't call maybe_apply_pragma_weak here... (cp_maybe_mangle_decomp): ... but call it here instead. * g++.dg/cpp1z/decomp41.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp1z/decomp41.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/decl.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug inline-asm/85022] [6/7 Regression] internal compiler error: in write_dependence_p, at alias.c:3003
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85022 --- Comment #8 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:58:44 2018 New Revision: 261939 URL: https://gcc.gnu.org/viewcvs?rev=261939=gcc=rev Log: Backported from mainline 2018-03-23 Jakub Jelinek PR inline-asm/85022 * emit-rtl.c (init_emit_regs): Indicate that VOIDmode MEMs don't have known size by default. Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/emit-rtl.c
[Bug inline-asm/85172] internal compiler error: unexpected expression '' of kind asm_expr
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85172 --- Comment #4 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:05:52 2018 New Revision: 261947 URL: https://gcc.gnu.org/viewcvs?rev=261947=gcc=rev Log: Backported from mainline 2018-04-04 Jakub Jelinek PR inline-asm/85172 * constexpr.c (cxx_eval_builtin_function_call): For calls to builtin_valid_in_constant_expr_p functions, don't call cxx_eval_constant_expression if argument is not potential_constant_expression. * g++.dg/ext/builtin13.C: New test. * g++.dg/ext/atomic-4.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/ext/atomic-4.C branches/gcc-7-branch/gcc/testsuite/g++.dg/ext/builtin13.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/constexpr.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug rtl-optimization/85167] [6/7 Regression] shrink-wrap.c:333:15: runtime error with UBSAN
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85167 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:05:08 2018 New Revision: 261946 URL: https://gcc.gnu.org/viewcvs?rev=261946=gcc=rev Log: Backported from mainline 2018-04-03 Jakub Jelinek PR rtl-optimization/85167 * shrink-wrap.c (move_insn_for_shrink_wrap): Don't set bb_uses and bb_defs if *split_p, instead preinitialize it to NULL. * gcc.dg/pr85167.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr85167.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/shrink-wrap.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/85147] [6/7 Regression] ICE with invalid variadic template-template parameter
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85147 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:04:25 2018 New Revision: 261945 URL: https://gcc.gnu.org/viewcvs?rev=261945=gcc=rev Log: Backported from mainline 2018-04-03 Jakub Jelinek PR c++/85147 * pt.c (fixed_parameter_pack_p_1): Punt if parm is error_mark_node. * g++.dg/cpp0x/pr85147.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp0x/pr85147.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/pt.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug inline-asm/85022] [6/7 Regression] internal compiler error: in write_dependence_p, at alias.c:3003
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85022 --- Comment #7 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:57:15 2018 New Revision: 261937 URL: https://gcc.gnu.org/viewcvs?rev=261937=gcc=rev Log: Backported from mainline 2018-03-23 Jakub Jelinek PR inline-asm/85022 * alias.c (write_dependence_p): Don't require for x_canonicalized non-VOIDmode if x has VOIDmode. * c-c++-common/torture/pr85022.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/c-c++-common/torture/pr85022.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/alias.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/85140] [6/7 Regression] ICE with invalid use of alignas
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85140 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:03:38 2018 New Revision: 261944 URL: https://gcc.gnu.org/viewcvs?rev=261944=gcc=rev Log: Backported from mainline 2018-04-03 Jakub Jelinek PR c++/85140 * name-lookup.c (handle_namespace_attrs): Return early if attributes is error_mark_node. * g++.dg/cpp0x/gen-attrs-64.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp0x/gen-attrs-64.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/name-lookup.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/84791] ICE with broken OpenMP reduction clause
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84791 --- Comment #3 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:02:52 2018 New Revision: 261943 URL: https://gcc.gnu.org/viewcvs?rev=261943=gcc=rev Log: Backported from mainline 2018-03-30 Jakub Jelinek PR c++/84791 * semantics.c (finish_omp_reduction_clause): If OMP_CLAUSE_REDUCTION_PLACEHOLDER is error_mark_node, return true even if processing_template_decl. * g++.dg/gomp/pr84791.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/gomp/pr84791.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/semantics.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug target/85095] [6/7 Regression] worse code generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85095 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:02:07 2018 New Revision: 261942 URL: https://gcc.gnu.org/viewcvs?rev=261942=gcc=rev Log: Backported from mainline 2018-03-28 Jakub Jelinek PR target/85095 * config/i386/i386.md (*add3_carry_0, *addsi3_carry_zext_0, *sub3_carry_0, *subsi3_carry_zext_0): New patterns. * gcc.target/i386/pr85095-1.c: New test. * gcc.target/i386/pr85095-2.c: New test. * gcc.c-torture/execute/pr85095.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.c-torture/execute/pr85095.c branches/gcc-7-branch/gcc/testsuite/gcc.target/i386/pr85095-1.c branches/gcc-7-branch/gcc/testsuite/gcc.target/i386/pr85095-2.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/config/i386/i386.md branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/85068] [6/7 Regression] ICE with invalid covariant return type hierarchy
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85068 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:59:31 2018 New Revision: 261940 URL: https://gcc.gnu.org/viewcvs?rev=261940=gcc=rev Log: Backported from mainline 2018-03-27 Jakub Jelinek PR c++/85068 * class.c (update_vtable_entry_for_fn): Don't ICE if base_binfo is NULL. Assert if thunk_binfo is NULL then errorcount is non-zero. * g++.dg/inherit/covariant22.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/inherit/covariant22.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/class.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/85076] [6/7 Regression] ICE with invalid template used as lambda argument
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85076 --- Comment #8 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 21:01:00 2018 New Revision: 261941 URL: https://gcc.gnu.org/viewcvs?rev=261941=gcc=rev Log: Backported from mainline 2018-03-27 Jakub Jelinek PR c++/85076 * tree.c (cp_build_reference_type): If to_type is error_mark_node, return it right away. * g++.dg/cpp1y/pr85076.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp1y/pr85076.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/tree.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug inline-asm/85034] [6/7 Regression] -O1 internal compiler error: in elimination_costs_in_insn, at reload1.c:3633
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85034 --- Comment #7 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:58:02 2018 New Revision: 261938 URL: https://gcc.gnu.org/viewcvs?rev=261938=gcc=rev Log: Backported from mainline 2018-03-23 Jakub Jelinek PR inline-asm/85034 * function.c (match_asm_constraints_1): Don't optimize if input doesn't satisfy general_operand predicate for output's mode. * gcc.target/i386/pr85034.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.target/i386/pr85034.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/function.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug inline-asm/84941] [6/7 Regression] internal compiler error: in reg_overlap_mentioned_p, at rtlanal.c:1870 (reg_overlap_mentioned_p()/match_asm_constraints_1())
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84941 --- Comment #8 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:56:25 2018 New Revision: 261936 URL: https://gcc.gnu.org/viewcvs?rev=261936=gcc=rev Log: Backported from mainline 2018-03-22 Jakub Jelinek PR inline-asm/84941 * function.c (match_asm_constraints_1): Don't do the optimization if input isn't a REG, SUBREG, MEM or constant. * gcc.dg/pr84941.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr84941.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/function.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c/84999] [7 Regression] ICE in make_vector_type, at tree.c:9561
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84999 --- Comment #6 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:55:40 2018 New Revision: 261934 URL: https://gcc.gnu.org/viewcvs?rev=261934=gcc=rev Log: Backported from mainline 2018-03-21 Jakub Jelinek PR c/84999 * c-typeck.c (build_binary_op): If c_common_type_for_size fails when building vector comparison, diagnose it and return error_mark_node. * c-c++-common/pr84999.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/c-c++-common/pr84999.c Modified: branches/gcc-7-branch/gcc/c/ChangeLog branches/gcc-7-branch/gcc/c/c-typeck.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/84961] [7 Regression] ICE error: SSA_NAME_DEF_STMT is wrong
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84961 --- Comment #9 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:54:44 2018 New Revision: 261933 URL: https://gcc.gnu.org/viewcvs?rev=261933=gcc=rev Log: Backported from mainline 2018-03-21 Jakub Jelinek PR c++/84961 * cp-tree.h (genericize_compound_lvalue): Declare. * typeck.c (genericize_compound_lvalue): New function. (unary_complex_lvalue, cp_build_modify_expr): Use it. * semantics.c (finish_asm_stmt): Replace MODIFY_EXPR, PREINCREMENT_EXPR and PREDECREMENT_EXPR in output and "m" constrained input operands with COMPOUND_EXPR. Call cxx_mark_addressable on the rightmost COMPOUND_EXPR operand. * c-c++-common/pr43690.c: Don't expect errors on "m" (--x) and "m" (++x) in C++. * g++.dg/torture/pr84961-1.C: New test. * g++.dg/torture/pr84961-2.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/torture/pr84961-1.C branches/gcc-7-branch/gcc/testsuite/g++.dg/torture/pr84961-2.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/cp-tree.h branches/gcc-7-branch/gcc/cp/semantics.c branches/gcc-7-branch/gcc/cp/typeck.c branches/gcc-7-branch/gcc/testsuite/ChangeLog branches/gcc-7-branch/gcc/testsuite/c-c++-common/pr43690.c
[Bug debug/84875] [6/7 Regression] ICE in maybe_record_trace_start, at dwarf2cfi.c:2348 on s390x
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84875 --- Comment #7 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:53:41 2018 New Revision: 261932 URL: https://gcc.gnu.org/viewcvs?rev=261932=gcc=rev Log: Backported from mainline 2018-03-20 Jakub Jelinek PR debug/84875 * dce.c (delete_unmarked_insns): Don't remove frame related noop moves holding REG_CFA_RESTORE notes, instead turn them into a USE. * gcc.dg/pr84875.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr84875.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/dce.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c/84953] [6/7 Regression] misleading warning from strpbrk(x,"")
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84953 --- Comment #10 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:52:44 2018 New Revision: 261931 URL: https://gcc.gnu.org/viewcvs?rev=261931=gcc=rev Log: Backported from mainline 2018-03-20 Jakub Jelinek PR c/84953 * builtins.c (fold_builtin_strpbrk): For strpbrk(x, "") use type instead of TREE_TYPE (s1) for the return value. * gcc.dg/pr84953.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr84953.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/builtins.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug sanitizer/85018] [8 Regression] Many sanitizer tests ICE since r258681
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85018 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:51:42 2018 New Revision: 261930 URL: https://gcc.gnu.org/viewcvs?rev=261930=gcc=rev Log: Backported from mainline 2018-03-22 Jakub Jelinek PR sanitizer/85018 * dwarf2asm.c (dw2_output_indirect_constant_1): Set DECL_INITIAL (decl) to decl at the end. * varasm.c (use_blocks_for_decl_p): Revert the 2018-03-20 change, adjust the comment. 2018-03-20 Jakub Jelinek PR target/84990 * dwarf2asm.c (dw2_output_indirect_constant_1): Temporarily turn off flag_section_anchors. * varasm.c (use_blocks_for_decl_p): Remove hack for dw2_force_const_mem. 2018-03-19 Jakub Jelinek PR sanitizer/78651 * dwarf2asm.c: Include fold-const.c. (dw2_output_indirect_constant_1): Set DECL_INITIAL (decl) to ADDR_EXPR of decl rather than decl itself. 2018-03-19 Maxim Ostapenko PR sanitizer/78651 * dwarf2asm.c (dw2_output_indirect_constant_1): Disable ASan before calling assemble_variable. * g++.dg/asan/pr78651.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/asan/pr78651.C Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/dwarf2asm.c branches/gcc-7-branch/gcc/testsuite/ChangeLog branches/gcc-7-branch/gcc/varasm.c
[Bug sanitizer/78651] Incorrect exception handling when catch clause uses local class and PIC and sanitizer are active
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78651 --- Comment #9 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:51:42 2018 New Revision: 261930 URL: https://gcc.gnu.org/viewcvs?rev=261930=gcc=rev Log: Backported from mainline 2018-03-22 Jakub Jelinek PR sanitizer/85018 * dwarf2asm.c (dw2_output_indirect_constant_1): Set DECL_INITIAL (decl) to decl at the end. * varasm.c (use_blocks_for_decl_p): Revert the 2018-03-20 change, adjust the comment. 2018-03-20 Jakub Jelinek PR target/84990 * dwarf2asm.c (dw2_output_indirect_constant_1): Temporarily turn off flag_section_anchors. * varasm.c (use_blocks_for_decl_p): Remove hack for dw2_force_const_mem. 2018-03-19 Jakub Jelinek PR sanitizer/78651 * dwarf2asm.c: Include fold-const.c. (dw2_output_indirect_constant_1): Set DECL_INITIAL (decl) to ADDR_EXPR of decl rather than decl itself. 2018-03-19 Maxim Ostapenko PR sanitizer/78651 * dwarf2asm.c (dw2_output_indirect_constant_1): Disable ASan before calling assemble_variable. * g++.dg/asan/pr78651.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/asan/pr78651.C Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/dwarf2asm.c branches/gcc-7-branch/gcc/testsuite/ChangeLog branches/gcc-7-branch/gcc/varasm.c
[Bug target/84990] [8 Regression] Boostrap broken with --enable-checking=release and Ada
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84990 --- Comment #9 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:51:42 2018 New Revision: 261930 URL: https://gcc.gnu.org/viewcvs?rev=261930=gcc=rev Log: Backported from mainline 2018-03-22 Jakub Jelinek PR sanitizer/85018 * dwarf2asm.c (dw2_output_indirect_constant_1): Set DECL_INITIAL (decl) to decl at the end. * varasm.c (use_blocks_for_decl_p): Revert the 2018-03-20 change, adjust the comment. 2018-03-20 Jakub Jelinek PR target/84990 * dwarf2asm.c (dw2_output_indirect_constant_1): Temporarily turn off flag_section_anchors. * varasm.c (use_blocks_for_decl_p): Remove hack for dw2_force_const_mem. 2018-03-19 Jakub Jelinek PR sanitizer/78651 * dwarf2asm.c: Include fold-const.c. (dw2_output_indirect_constant_1): Set DECL_INITIAL (decl) to ADDR_EXPR of decl rather than decl itself. 2018-03-19 Maxim Ostapenko PR sanitizer/78651 * dwarf2asm.c (dw2_output_indirect_constant_1): Disable ASan before calling assemble_variable. * g++.dg/asan/pr78651.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/asan/pr78651.C Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/dwarf2asm.c branches/gcc-7-branch/gcc/testsuite/ChangeLog branches/gcc-7-branch/gcc/varasm.c
[Bug target/84899] [6/7 Regression] ICE: in final_scan_insn_1, at final.c:3139 (error: could not split insn)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84899 --- Comment #6 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:48:57 2018 New Revision: 261929 URL: https://gcc.gnu.org/viewcvs?rev=261929=gcc=rev Log: Backported from mainline 2018-03-16 Jakub Jelinek PR target/84899 * postreload.c (reload_combine_recognize_pattern): Perform INTVAL addition in unsigned HOST_WIDE_INT type to avoid UB and truncate_int_for_mode the result for the destination's mode. * gcc.dg/pr84899.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr84899.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/postreload.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/84874] [6/7 Regression] internal compiler error: in reshape_init_class, at cp/decl.c:5800
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84874 --- Comment #10 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:47:57 2018 New Revision: 261928 URL: https://gcc.gnu.org/viewcvs?rev=261928=gcc=rev Log: Backported from mainline 2018-03-16 Jakub Jelinek PR c++/84874 * g++.dg/cpp1z/desig8.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp1z/desig8.C Modified: branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug target/85994] Comparison failure in 64-bit libgcc *_{sav,res}ms64*.o on Solaris/x86
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85994 --- Comment #11 from Daniel Santos --- Thank you Rainer!
[Bug tree-optimization/84841] [7 Regression] ICE: tree check: expected ssa_name, have real_cst in rewrite_expr_tree_parallel, at tree-ssa-reassoc.c:4624
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84841 --- Comment #9 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:46:37 2018 New Revision: 261927 URL: https://gcc.gnu.org/viewcvs?rev=261927=gcc=rev Log: Backported from mainline 2018-03-16 Jakub Jelinek PR tree-optimization/84841 * tree-ssa-reassoc.c (INTEGER_CONST_TYPE): Change to 1 << 4 from 1 << 3. (FLOAT_ONE_CONST_TYPE): Define. (constant_type): Return FLOAT_ONE_CONST_TYPE for -1.0 and 1.0. (sort_by_operand_rank): Put entries with higher constant_type last rather than first to match comments. * gcc.dg/pr84841.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr84841.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/testsuite/ChangeLog branches/gcc-7-branch/gcc/tree-ssa-reassoc.c
[Bug c++/84874] [6/7 Regression] internal compiler error: in reshape_init_class, at cp/decl.c:5800
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84874 --- Comment #9 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:44:39 2018 New Revision: 261926 URL: https://gcc.gnu.org/viewcvs?rev=261926=gcc=rev Log: Backported from mainline 2018-03-16 Jakub Jelinek PR c++/84874 * decl.c (reshape_init_class): Don't assert d->cur->index == field if d->cur->index is a FIELD_DECL, instead set field to d->cur->index. * g++.dg/cpp1z/desig7.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp1z/desig7.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/decl.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/79085] [6/7 Regression] ICE with placement new to unaligned location
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79085 --- Comment #12 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:43:53 2018 New Revision: 261925 URL: https://gcc.gnu.org/viewcvs?rev=261925=gcc=rev Log: Backported from mainline 2018-03-15 Jakub Jelinek PR c++/79085 * calls.c (expand_call): For TREE_ADDRESSABLE rettype ignore alignment check and use address of target always. * g++.dg/opt/pr79085.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/opt/pr79085.C Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/calls.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/84222] [6/7 Regression] [[deprecated]] class complains about internal class usage
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84222 --- Comment #11 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:43:09 2018 New Revision: 261924 URL: https://gcc.gnu.org/viewcvs?rev=261924=gcc=rev Log: Backported from mainline 2018-03-15 Jakub Jelinek PR c++/84222 * cp-tree.h (cp_warn_deprecated_use): Declare. * tree.c (cp_warn_deprecated_use): New function. * typeck2.c (build_functional_cast): Use it. * decl.c (grokparms): Likewise. (grokdeclarator): Likewise. Temporarily push nested class scope around grokparms call for out of class member definitions. * g++.dg/warn/deprecated.C (T::member3): Change dg-warning to dg-bogus. * g++.dg/warn/deprecated-6.C (T::member3): Likewise. * g++.dg/warn/deprecated-13.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/warn/deprecated-13.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/cp-tree.h branches/gcc-7-branch/gcc/cp/decl.c branches/gcc-7-branch/gcc/cp/tree.c branches/gcc-7-branch/gcc/cp/typeck2.c branches/gcc-7-branch/gcc/testsuite/ChangeLog branches/gcc-7-branch/gcc/testsuite/g++.dg/warn/deprecated-6.C branches/gcc-7-branch/gcc/testsuite/g++.dg/warn/deprecated.C
[Bug target/84860] ICE in emit_move_insn, at expr.c:3717
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84860 --- Comment #4 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:41:55 2018 New Revision: 261923 URL: https://gcc.gnu.org/viewcvs?rev=261923=gcc=rev Log: Backported from mainline 2018-03-15 Jakub Jelinek PR target/84860 * optabs.c (emit_conditional_move): Pass address of cmode's copy rather than address of cmode as last argument to prepare_cmp_insn. * gcc.c-torture/compile/pr84860.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.c-torture/compile/pr84860.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/optabs.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c/84853] [7 Regression] ICE: verify_gimple failed (expand_shift_1)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84853 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:40:45 2018 New Revision: 261922 URL: https://gcc.gnu.org/viewcvs?rev=261922=gcc=rev Log: Backported from mainline 2018-03-15 Jakub Jelinek PR c/84853 * c-typeck.c (build_binary_op) : If code1 is INTEGER_TYPE, only allow code0 VECTOR_TYPE if it has INTEGER_TYPE element type. * gcc.dg/pr84853.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr84853.c Modified: branches/gcc-7-branch/gcc/c/ChangeLog branches/gcc-7-branch/gcc/c/c-typeck.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c/86287] New: AddressSanitizer: heap-use-after-free on bootstrap with -O3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86287 Bug ID: 86287 Summary: AddressSanitizer: heap-use-after-free on bootstrap with -O3 Product: gcc Version: 8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: dcb314 at hotmail dot com Target Milestone: --- I have just tried to bootstrap trunk revision 261907 with address sanitizer and got this: ==14968==ERROR: AddressSanitizer: heap-use-after-free on address 0x6110004afa94 at pc 0x0295ba08 bp 0x7ffcee5bc280 sp 0x7ffcee5bc278 READ of size 4 at 0x6110004afa94 thread T0 #0 0x295ba07 in vect_transform_loop_stmt ../../trunk/gcc/tree-vect-loop.c:8332 #1 0x29a1ffc in vect_transform_loop(_loop_vec_info*) ../../trunk/gcc/tree-vect-loop.c:8567 #2 0x2a232dd in try_vectorize_loop_1 ../../trunk/gcc/tree-vectorizer.c:757 #3 0x2a26163 in try_vectorize_loop ../../trunk/gcc/tree-vectorizer.c:807 Configure line was ../trunk/configure --prefix=/home/dcb/gcc/results.261907.asan \ --with-build-config=bootstrap-asan \ --disable-multilib \ --disable-werror \ --enable-checking=df,extra,fold,rtl,yes \ --enable-languages=c,c++,fortran with sed 's/-O2/-O3 -funroll-loops -Wlogical-op/' < Makefile > Makefile.tmp mv Makefile.tmp Makefile This used to work at revision 261641, so it looks like someone has broken something in the last few days.
[Bug middle-end/84834] [7 Regression] ICE: tree check: expected integer_cst, have complex_cst in to_wide, at tree.h:5527
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84834 --- Comment #8 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:38:25 2018 New Revision: 261921 URL: https://gcc.gnu.org/viewcvs?rev=261921=gcc=rev Log: Backported from mainline 2018-03-13 Jakub Jelinek PR middle-end/84834 * match.pd ((A & C) != 0 ? D : 0): Use INTEGER_CST@2 instead of integer_pow2p@2 and test integer_pow2p in condition. (A < 0 ? C : 0): Similarly for @1. * gcc.dg/pr84834.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr84834.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/match.pd branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug target/84827] [7 Regression] ICE in extract_insn, at recog.c:2311
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84827 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:37:40 2018 New Revision: 261920 URL: https://gcc.gnu.org/viewcvs?rev=261920=gcc=rev Log: Backported from mainline 2018-03-13 Jakub Jelinek PR target/84827 * config/i386/i386.md (round2): For 387 fancy math, disable pattern if -ftrapping-math -fno-fp-int-builtin-inexact. * gcc.target/i386/pr84827.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.target/i386/pr84827.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/config/i386/i386.md branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug target/84786] [miscompilation] vunpcklpd accessing xmm16-22 targeting KNL
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84786 --- Comment #17 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:36:31 2018 New Revision: 261919 URL: https://gcc.gnu.org/viewcvs?rev=261919=gcc=rev Log: Backported from mainline 2018-03-13 Jakub Jelinek PR target/84786 * config/i386/sse.md (sse2_loadhpd): Use Yv constraint rather than v on the last operand. * gcc.target/i386/avx512f-pr84786-1.c: New test. * gcc.target/i386/avx512f-pr84786-2.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.target/i386/avx512f-pr84786-1.c branches/gcc-7-branch/gcc/testsuite/gcc.target/i386/avx512f-pr84786-2.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/config/i386/sse.md branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug target/84772] powerpc-spe: Spurious "is used uninitialized" warning, or possibly incorrect codegen for va_arg(long double)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84772 --- Comment #10 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:35:29 2018 New Revision: 261918 URL: https://gcc.gnu.org/viewcvs?rev=261918=gcc=rev Log: Backported from mainline 2018-03-09 Jakub Jelinek PR target/84772 * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Mark va_arg_tmp temporary TREE_ADDRESSABLE before gimplification of BUILT_IN_MEMCPY. * gcc.dg/pr84772.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr84772.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/config/rs6000/rs6000.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/84076] [6/7 Regression] Warning about objects through POD mistakenly claims the object is a pointer
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84076 --- Comment #9 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:34:33 2018 New Revision: 261917 URL: https://gcc.gnu.org/viewcvs?rev=261917=gcc=rev Log: Backported from mainline 2018-03-09 Jason Merrill Jakub Jelinek PR c++/84076 * call.c (convert_arg_to_ellipsis): Instead of cp_build_addr_expr build ADDR_EXPR with REFERENCE_TYPE. (build_over_call): For purposes of check_function_arguments, if argarray[j] is ADDR_EXPR with REFERENCE_TYPE created above, use its operand rather than the argument itself. * g++.dg/warn/Wformat-2.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/warn/Wformat-2.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/call.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/84767] [6/7 Regression] ICE with pointer to VLA
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84767 --- Comment #6 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:33:38 2018 New Revision: 261916 URL: https://gcc.gnu.org/viewcvs?rev=261916=gcc=rev Log: Backported from mainline 2018-03-09 Jakub Jelinek PR c++/84767 * tree-inline.c (copy_tree_body_r): For INDIRECT_REF of a remapped decl, use remap_type if we want to use the type. * g++.dg/ext/vla18.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/ext/vla18.C Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/testsuite/ChangeLog branches/gcc-7-branch/gcc/tree-inline.c
[Bug c++/80598] [7 regression] -Wunused triggers for functions used in uninstantiated templates
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80598 --- Comment #7 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:32:15 2018 New Revision: 261915 URL: https://gcc.gnu.org/viewcvs?rev=261915=gcc=rev Log: Backported from mainline 2018-03-08 Jason Merrill Jakub Jelinek PR c++/80598 * call.c (build_over_call): In templates set TREE_USED (first_fn) when not calling mark_used for the benefit of -Wunused-function warning. * g++.dg/warn/Wunused-function4.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/warn/Wunused-function4.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/call.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug tree-optimization/84739] [6/7 Regression] ICE in get_value_for_expr, at tree-ssa-ccp.c:649
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84739 --- Comment #7 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:31:10 2018 New Revision: 261914 URL: https://gcc.gnu.org/viewcvs?rev=261914=gcc=rev Log: Backported from mainline 2018-03-08 Jakub Jelinek PR tree-optimization/84739 * tree-tailcall.c (find_tail_calls): Check call arguments against DECL_ARGUMENTS (current_function_decl) rather than DECL_ARGUMENTS (func) when checking for tail recursion. * gcc.dg/pr84739.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr84739.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/testsuite/ChangeLog branches/gcc-7-branch/gcc/tree-tailcall.c
[Bug target/84700] [6/7 Regression] ICE on 32-bit BE powerpc targets w/ -misel -O1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84700 --- Comment #7 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:29:34 2018 New Revision: 261913 URL: https://gcc.gnu.org/viewcvs?rev=261913=gcc=rev Log: Backported from mainline 2018-03-05 Jakub Jelinek PR target/84700 * combine.c (combine_simplify_rtx): Don't try to simplify if if_then_else_cond returned non-NULL, but either true_rtx or false_rtx are equal to x. * gcc.target/powerpc/pr84700.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.target/powerpc/pr84700.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/combine.c branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/84662] [6/7 Regression] internal compiler error: tree check: expected class 'type', have 'exceptional' (error_mark) in is_bitfield_expr_with_lowered_type, at cp/typeck.c:1944
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84662 --- Comment #7 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 20:28:04 2018 New Revision: 261912 URL: https://gcc.gnu.org/viewcvs?rev=261912=gcc=rev Log: Backported from mainline 2018-03-02 Jakub Jelinek PR c++/84662 * pt.c (tsubst_copy_and_build) : Use RETURN instead of return. : Likewise. : If op0 is error_mark_node, just return it instead of wrapping it into CONVERT_EXPR. * g++.dg/cpp1y/pr84662.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp1y/pr84662.C Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/cp/pt.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug c++/86286] New: Could __attribute__ ((nothrow)) on a noexcept function turn off EH codegen?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86286
Bug ID: 86286
Summary: Could __attribute__ ((nothrow)) on a noexcept function
turn off EH codegen?
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: redi at gcc dot gnu.org
Target Milestone: ---
We generate ideal code for a noexcept function calling a noexcept function:
int f (int i) noexcept;
int foo (int i) noexcept { return f (i); }
_Z3fooi:
.LFB1:
.cfi_startproc
jmp _Z1fi
.cfi_endproc
.LFE0:
But when a noexcept function calls a non-noexcept function there is additional
code needed to call std::terminate if an exception occurs:
_Z3gooi:
.LFB1:
.cfi_startproc
.cfi_personality 0x3,__gxx_personality_v0
.cfi_lsda 0x3,.LLSDA1
jmp _Z1gi
.cfi_endproc
.LFE1:
.globl __gxx_personality_v0
.section.gcc_except_table,"a",@progbits
.LLSDA1:
.byte 0xff
.byte 0xff
.byte 0x1
.uleb128 .LLSDACSE1-.LLSDACSB1
.LLSDACSB1:
.LLSDACSE1:
.text
If we know that the non-noexcept function definitely won't throw (e.g. because
we've explicitly checked its preconditions, or we just have additional
knowledge about the state of the program) we can eliminate that extra code with
a nothrow wrapper:
inline int g2 (int i) __attribute__((always_inline,nothrow));
inline int g2 (int i) { return g(i); }
int good (int i) noexcept { return g2 (i); }
_Z4goodi:
.LFB3:
.cfi_startproc
jmp _Z1gi
.cfi_endproc
.LFE3:
But this is awkward and doesn't scale. It's possible wrap the call in a lambda
using the attribute, but that's still awkward, and less readable:
int good (int i) noexcept {
return [&]() __attribute__((nothrow)) { return g (i); }();
}
Would it be possible for the nothrow attribute to do that automatically when
placed on a noexcept function? i.e. instead of the g2 wrapper we'd just do:
int good (int i) noexcept __attribute__((nothrow));
int good (int i) noexcept { return g (i); }
I'd like this to declare a function that never throws (which 'noexcept'
guarantees), but also never needs to deal with exceptions coming from below it.
There could be code today which uses both noexcept and __attribute__
((nothrow)), maybe for pre-C++11 compatibility:
#ifdef __GNUC__
# define NOTHROW __attribute__((nothrow))
#endif
#if __cplusplus >= 201103L
# define NOEXCEPT noexcept
#else
# define NOEXCEPT
#endif
void f() NOEXCEPT NOTHROW;
If we're concerned about changing the behaviour of this code (from guaranteed
termination in C++11 and later if the function exits via an exception, to UB)
then maybe a new attribute would be better.
[Bug fortran/86206] ICE in gfc_resolve_forall, at fortran/resolve.c:9989
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86206 --- Comment #3 from Harald Anlauf --- No ICE if the module is split into two parts: ! No ICE module zero_mod implicit none contains pure function zero_vec(xx) result(ret) real, intent(in) :: xx(:) real :: ret(size(xx)) integer :: i forall (i=1:size(xx)) ret(i) = 0.0 end function zero_vec end module zero_mod module zero_mod2 use zero_mod implicit none contains pure function zero_mat(xx) result(ret) real, intent(in) :: xx(:,:) real :: ret(size(xx,1),size(xx,2)) integer :: j forall (j=1:size(xx,2)) ret(:,j) = zero_vec(xx(:,j)) end function zero_mat end module
[Bug c++/81589] Possible False-Positive with decltype
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81589 Jason Merrill changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED Target Milestone|--- |7.4 --- Comment #10 from Jason Merrill --- Sounds like this is fixed, then.
[Bug fortran/86281] [9 regression] SEGV in fortran/resolve.c:resolve_function
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86281
kargl at gcc dot gnu.org changed:
What|Removed |Added
CC||kargl at gcc dot gnu.org
--- Comment #4 from kargl at gcc dot gnu.org ---
(In reply to Paul Thomas from comment #3)
> (In reply to Rainer Orth from comment #1)
> > Created attachment 44310 [details]
> > proposed patch
>
> Rainer,
>
> Many, many thanks for taking care of this.
>
> I know what the problem with assumed_charlen_function_7.f90 is all about.
>
> Best regards
>
> Paul
This is probably a a slightly better patch than Rainer's
patch (although checking for a NULL pointer as he has done
is not a bad idea). Watch for cut-n-paste.
Index: resolve.c
===
--- resolve.c (revision 261908)
+++ resolve.c (working copy)
@@ -3116,6 +3136,7 @@ resolve_function (gfc_expr *expr)
/* If this is a deferred TBP with an abstract interface, its result
cannot be an assumed length character (F2003: C418). */
if (sym && sym->attr.abstract && sym->attr.function
+ && sym->result->ts.type == BT_CHARACTER
&& sym->result->ts.u.cl->length == NULL)
{
gfc_error ("ABSTRACT INTERFACE %qs at %L must not have an assumed "
[Bug target/86285] We don't mangle __ieee128 correctly using -mlong-double-64 -mabi=ieeelongdouble
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86285 --- Comment #2 from Peter Bergner --- When we compile using -mlong-double-64 -mabi=ibmlongdouble, we get what I'd expect: (gdb) ptree type constant 128> unit-size constant 16> align:128 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type 0x758415a8 precision:128>
[Bug c++/38658] trivial try/catch statement not eliminated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38658 Jonathan Wakely changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2018-06-22 Ever confirmed|0 |1 --- Comment #4 from Jonathan Wakely --- (In reply to Martin Sebor from comment #3) > There are situations when throwing an exception is required to result in a > call to std::terminate() but those require the exception to escape the > function where it's thrown from. Outside of those, it seems to me that as > long as the observable effect of the optimized code is indistinguishable > from the original (such as in the test case) removing try/catch statements > should be a valid optimization. Agreed.
[Bug target/86285] We don't mangle __ieee128 correctly using -mlong-double-64 -mabi=ieeelongdouble
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86285 --- Comment #1 from Peter Bergner --- Setting a breakpoint at rs6000_mangle_type(tree type), I'm seeing: (gdb) p type $23 = (const_tree) 0x758413b0 (gdb) ptree type constant 64> unit-size constant 8> align:64 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type 0x758413b0 precision:64 pointer_to_this > ...so somehow the __ieee128 is being changed into a long double and since we said long double is 64-bits (ie, double), we have: (gdb) p TYPE_MODE(type) $24 = E_DFmode which causes us to return NULL and we get the default mangling 'e' for long double.
[Bug target/86285] New: We don't mangle __ieee128 correctly using -mlong-double-64 -mabi=ieeelongdouble
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86285
Bug ID: 86285
Summary: We don't mangle __ieee128 correctly using
-mlong-double-64 -mabi=ieeelongdouble
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: bergner at gcc dot gnu.org
Target Milestone: ---
We don't mangle __ieee128 correctly when compiling with -mlong-double-64
-mabi=ieeelongdouble. We should always mangle it using u9__ieee128 instead of
'e'.
bergner@pike:~$ cat ieee128.cc
void foo(__ieee128) {}
bergner@pike:~$ g++ -S -mlong-double-64 -mabi=ibmlongdouble ieee128.cc -o- |
grep globl
.globl _Z3foou9__ieee128
bergner@pike:~$ g++ -S -mlong-double-64 -mabi=ieeelongdouble ieee128.cc -o- |
grep globl
.globl _Z3fooe
[Bug fortran/86281] [9 regression] SEGV in fortran/resolve.c:resolve_function
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86281 --- Comment #3 from Paul Thomas --- (In reply to Rainer Orth from comment #1) > Created attachment 44310 [details] > proposed patch Rainer, Many, many thanks for taking care of this. I know what the problem with assumed_charlen_function_7.f90 is all about. Best regards Paul
[Bug c++/85662] [8/9 Regression] "error: non-constant condition for static assertion" from __builtin_offsetof in C++
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85662 --- Comment #11 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 17:26:44 2018 New Revision: 261910 URL: https://gcc.gnu.org/viewcvs?rev=261910=gcc=rev Log: PR c++/85662 * g++.dg/ext/offsetof3.C: New test. Added: branches/gcc-8-branch/gcc/testsuite/g++.dg/ext/offsetof3.C Modified: branches/gcc-8-branch/gcc/testsuite/ChangeLog
[Bug c++/85662] [8/9 Regression] "error: non-constant condition for static assertion" from __builtin_offsetof in C++
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85662 --- Comment #10 from Jakub Jelinek --- Author: jakub Date: Fri Jun 22 17:22:43 2018 New Revision: 261909 URL: https://gcc.gnu.org/viewcvs?rev=261909=gcc=rev Log: PR c++/85662 * g++.dg/ext/offsetof3.C: New test. Added: trunk/gcc/testsuite/g++.dg/ext/offsetof3.C Modified: trunk/gcc/testsuite/ChangeLog
[Bug target/84786] [miscompilation] vunpcklpd accessing xmm16-22 targeting KNL
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84786 --- Comment #16 from Jakub Jelinek --- Created attachment 44312 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44312=edit gcc7-pr84786.patch Patch I'm going to bootstrap/regtest on 7.x branch now. On the trunk/in 8.x this got fixed with r253924 aka one of the PR82370 fixes, but that is something that IMHO shouldn't be backported.
[Bug middle-end/86284] New: Insert trap instruction in place of missing return statement on dodgy code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86284
Bug ID: 86284
Summary: Insert trap instruction in place of missing return
statement on dodgy code
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: ktkachov at gcc dot gnu.org
Target Milestone: ---
Consider a non-void function that's missing a return statement:
int test()
{
volatile int i = 0;
}
g++ at -O2 for aarch64 will generate:
_Z4testv:
.LFB0:
.cfi_startproc
sub sp, sp, #16
.cfi_def_cfa_offset 16
str wzr, [sp, 12]
.cfi_endproc
.LFE0:
.size _Z4testv, .-_Z4testv
No return statement. That's fine (the code is undefined), and GCC even warns
about it.
We got a suggestion that GCC could insert a trap instruction at the end of such
a function so that at runtime we get a trap rather than the execution running
off into the abyss.
GCC already inserts traps in unreachable paths in gimple-ssa-isolate-paths.c,
so maybe we can also do this when we already detect that a function is broken
in this way?
[Bug tree-optimization/86259] [8/9 Regression] min(4, strlen(s)) optimized to strlen(s) with -flto
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86259 --- Comment #13 from joseph at codesourcery dot com --- Well, C90 TC1 adds (to the informative Annex listing undefined behavior) the case of array subscripts being out of range even if they wouldn't be simply based on the top-level object, such as a[1][7] given the declaration int a[4][5]. And of course array references are defined in terms of equivalent pointer arithmetic, so that's *(*(a+1) + 7). So certainly for array objects, once you've got to a[1] or *(a+1) - as opposed to [1] or &*(a+1) - you can't then get something from a[2] from there. (But e.g. [1] + 1 is a perfectly valid way of writing [2]. And at least some of the examples here may be closer to that.)
[Bug fortran/86283] New: [9 regression] ICE in gfortran.dg/interface_abstract_4.f90 (and others) starting with r261868
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86283 Bug ID: 86283 Summary: [9 regression] ICE in gfortran.dg/interface_abstract_4.f90 (and others) starting with r261868 Product: gcc Version: 9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: seurer at gcc dot gnu.org Target Milestone: --- FAIL: gfortran.dg/interface_abstract_4.f90 -O (internal compiler error) FAIL: gfortran.dg/interface_abstract_4.f90 -O (test for excess errors) spawn -ignore SIGHUP /home/seurer/gcc/build/gcc-trunk/gcc/testsuite/gfortran/../../gfortran -B/home/seurer/gcc/build/gcc-trunk/gcc/testsuite/gfortran/../../ -B/home/seurer/gcc/build/gcc-trunk/powerpc64-unknown-linux-gnu/./libgfortran/ /home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/interface_abstract_4.f90 -fno-diagnostics-show-caret -fdiagnostics-color=never -O -pedantic-errors -S -o interface_abstract_4.s /home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/interface_abstract_4.f90:29:12: Error: ABSTRACT INTERFACE 'f' must not be referenced at (1) /home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/interface_abstract_4.f90:30:68: Error: ABSTRACT INTERFACE 's' must not be referenced at (1) f951: internal compiler error: Segmentation fault 0x10a5cd8b crash_signal /home/seurer/gcc/gcc-trunk/gcc/toplev.c:324 0x102cc538 resolve_function /home/seurer/gcc/gcc-trunk/gcc/fortran/resolve.c:3119 0x102c8adf gfc_resolve_expr(gfc_expr*) /home/seurer/gcc/gcc-trunk/gcc/fortran/resolve.c:6741 0x102cf9f3 resolve_compcall /home/seurer/gcc/gcc-trunk/gcc/fortran/resolve.c:6299 0x102c9257 resolve_typebound_function /home/seurer/gcc/gcc-trunk/gcc/fortran/resolve.c:6408 0x102c9257 gfc_resolve_expr(gfc_expr*) /home/seurer/gcc/gcc-trunk/gcc/fortran/resolve.c:6752 0x102bd597 gfc_resolve_code(gfc_code*, gfc_namespace*) /home/seurer/gcc/gcc-trunk/gcc/fortran/resolve.c:11133 0x102d315b gfc_resolve_blocks(gfc_code*, gfc_namespace*) /home/seurer/gcc/gcc-trunk/gcc/fortran/resolve.c:10173 0x102bd9f7 gfc_resolve_code(gfc_code*, gfc_namespace*) /home/seurer/gcc/gcc-trunk/gcc/fortran/resolve.c:11123 0x102c0b9f resolve_codes /home/seurer/gcc/gcc-trunk/gcc/fortran/resolve.c:16581 0x102c0afb resolve_codes /home/seurer/gcc/gcc-trunk/gcc/fortran/resolve.c:16565 0x102c0c53 gfc_resolve(gfc_namespace*) /home/seurer/gcc/gcc-trunk/gcc/fortran/resolve.c:16616 0x102a7557 resolve_all_program_units /home/seurer/gcc/gcc-trunk/gcc/fortran/parse.c:6064 0x102a7557 gfc_parse_file() /home/seurer/gcc/gcc-trunk/gcc/fortran/parse.c:6314 0x103116cf gfc_be_parse_file /home/seurer/gcc/gcc-trunk/gcc/fortran/f95-lang.c:204 these test cases also fail: FAIL: gfortran.dg/assumed_charlen_function_7.f90 -O (test for excess errors) FAIL: gfortran.dg/actual_array_offset_1.f90 -O0 (internal compiler error) FAIL: gfortran.dg/actual_array_offset_1.f90 -O0 (test for excess errors) FAIL: gfortran.dg/actual_array_offset_1.f90 -O1 (internal compiler error) FAIL: gfortran.dg/actual_array_offset_1.f90 -O1 (test for excess errors) FAIL: gfortran.dg/actual_array_offset_1.f90 -O2 (internal compiler error) FAIL: gfortran.dg/actual_array_offset_1.f90 -O2 (test for excess errors) FAIL: gfortran.dg/actual_array_offset_1.f90 -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions (internal compiler error) FAIL: gfortran.dg/actual_array_offset_1.f90 -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions (test for excess errors) FAIL: gfortran.dg/actual_array_offset_1.f90 -O3 -g (internal compiler error) FAIL: gfortran.dg/actual_array_offset_1.f90 -O3 -g (test for excess errors) FAIL: gfortran.dg/actual_array_offset_1.f90 -Os (internal compiler error) FAIL: gfortran.dg/actual_array_offset_1.f90 -Os (test for excess errors)
[Bug lto/82172] Destruction of basic_string in basic_stringbuf::overflow with _GLIBCXX_USE_CXX11_ABI=0, -flto, and C++17 mode results in invalid delete
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82172 --- Comment #25 from Jonathan Wakely --- (In reply to Gubbins from comment #24) > > > Does anyone know how I would raise this with someone who can fix it on the > > > Darwin side? Or could it be worked around by gcc? > > > > Linker should provide precise information to GCC. > > FWIW, I have raised a bug report on the Apple Developer Bug Reporter > regarding the similar behaviour of the OSX linker. Dave, the fix for PR 86138 might also fix this case for Darwin - could you check that please? The fix is committed to the tip of trunk and gcc-8-branch and gcc-7-branch.
[Bug libstdc++/86138] [7/8 Regression] C++17: getline(istream, string) crashes on Cygwin because incompatible C++14 function is called
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86138 Jonathan Wakely changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #22 from Jonathan Wakely --- Should be fixed for 7.4 and 8.2 now.
[Bug libstdc++/86138] [7/8 Regression] C++17: getline(istream, string) crashes on Cygwin because incompatible C++14 function is called
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86138 --- Comment #21 from Jonathan Wakely --- Author: redi Date: Fri Jun 22 15:58:38 2018 New Revision: 261907 URL: https://gcc.gnu.org/viewcvs?rev=261907=gcc=rev Log: PR libstdc++/86138 prevent implicit instantiation of COW empty rep The explicit instantiation declarations for std::basic_string are disabled for C++17 (and later) so that basic_string symbols get implicitly instantiated in every translation unit that needs them. On targets that don't support STB_GNU_UNIQUE this leads to multiple copies of the empty rep symbol for COW strings. In order to detect whether a COW string needs to deallocate its storage it compares the address with the empty rep. When there are multiple copies of the empty rep object the address is not unique, and so string destructors try to delete the empty rep, which crashes. In order to guarantee uniqueness of the _S_empty_rep_storage symbol this patch adds an explicit instantiation declaration for just that symbol. This means the other symbols are still implicitly instantiated in C++17 code, but for the empty rep the definition in the library gets used. Separately, there is no need for C++17 code to implicitly instantiate the I/O functions for strings, so this also restores the explicit instantiation declarations for those functions. Backport from mainline 2018-06-22 Jonathan Wakely PR libstdc++/86138 * include/bits/basic_string.tcc: [__cplusplus > 201402 && !_GLIBCXX_USE_CXX11_ABI] (basic_string::_Rep::_S_empty_rep_storage) (basic_string::_Rep::_S_empty_rep_storage): Add explicit instantiation declarations. [__cplusplus > 201402] (operator>>, operator<<, getline): Re-enable explicit instantiation declarations. * testsuite/21_strings/basic_string/cons/char/86138.cc: New. * testsuite/21_strings/basic_string/cons/wchar_t/86138.cc: New. Added: branches/gcc-7-branch/libstdc++-v3/testsuite/21_strings/basic_string/cons/char/86138.cc branches/gcc-7-branch/libstdc++-v3/testsuite/21_strings/basic_string/cons/wchar_t/86138.cc Modified: branches/gcc-7-branch/libstdc++-v3/ChangeLog branches/gcc-7-branch/libstdc++-v3/include/bits/basic_string.tcc
[Bug tree-optimization/86263] [9 Regression] [nvptx] casesi, tablejump
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86263 cesar at gcc dot gnu.org changed: What|Removed |Added CC||cesar at gcc dot gnu.org --- Comment #6 from cesar at gcc dot gnu.org --- Created attachment 44311 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44311=edit newlib test case I attached a reduced test case from ecvtbuf.c. At Thomas mentioned, it's failing with nvptx-gcc.
[Bug tree-optimization/61247] vectorization fails for unsigned is used for IV but casted to int before using as the index (and then casted for internal type)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61247 Eric Gallager changed: What|Removed |Added CC||egallager at gcc dot gnu.org --- Comment #3 from Eric Gallager --- This came up on the mailing lists here: https://gcc.gnu.org/ml/gcc/2018-06/msg00238.html
[Bug target/86222] ICE in final_scan_insn_1 calling strncmp() with a bound of PTRDIFF_MAX + 1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86222 --- Comment #5 from acsawdey at gcc dot gnu.org --- Author: acsawdey Date: Fri Jun 22 15:37:36 2018 New Revision: 261906 URL: https://gcc.gnu.org/viewcvs?rev=261906=gcc=rev Log: Forgot PR target/86222 in ChangeLog Modified: trunk/gcc/ChangeLog
[Bug fortran/86281] [9 regression] SEGV in fortran/resolve.c:resolve_function
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86281 Rainer Orth changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2018-06-22 Ever confirmed|0 |1 --- Comment #2 from Rainer Orth --- The attached patch makes all but a single failure go away: FAIL: gfortran.dg/assumed_charlen_function_7.f90 -O (test for excess errors) Excess errors: /vol/gcc/src/hg/trunk/local/gcc/testsuite/gfortran.dg/assumed_charlen_function_7.f90:18:4: Warning: Obsolescent feature: CHARACTER(*) function 'abc_interface' at (1) Tested on i386-pc-solaris2.11.
[Bug fortran/86281] [9 regression] SEGV in fortran/resolve.c:resolve_function
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86281 --- Comment #1 from Rainer Orth --- Created attachment 44310 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44310=edit proposed patch
[Bug libstdc++/86138] [7/8 Regression] C++17: getline(istream, string) crashes on Cygwin because incompatible C++14 function is called
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86138 --- Comment #20 from Jonathan Wakely --- Author: redi Date: Fri Jun 22 14:56:18 2018 New Revision: 261902 URL: https://gcc.gnu.org/viewcvs?rev=261902=gcc=rev Log: PR libstdc++/86138 prevent implicit instantiation of COW empty rep The explicit instantiation declarations for std::basic_string are disabled for C++17 (and later) so that basic_string symbols get implicitly instantiated in every translation unit that needs them. On targets that don't support STB_GNU_UNIQUE this leads to multiple copies of the empty rep symbol for COW strings. In order to detect whether a COW string needs to deallocate its storage it compares the address with the empty rep. When there are multiple copies of the empty rep object the address is not unique, and so string destructors try to delete the empty rep, which crashes. In order to guarantee uniqueness of the _S_empty_rep_storage symbol this patch adds an explicit instantiation declaration for just that symbol. This means the other symbols are still implicitly instantiated in C++17 code, but for the empty rep the definition in the library gets used. Separately, there is no need for C++17 code to implicitly instantiate the I/O functions for strings, so this also restores the explicit instantiation declarations for those functions. Backport from mainline 2018-06-22 Jonathan Wakely PR libstdc++/86138 * include/bits/basic_string.tcc: [__cplusplus > 201402 && !_GLIBCXX_USE_CXX11_ABI] (basic_string::_Rep::_S_empty_rep_storage) (basic_string::_Rep::_S_empty_rep_storage): Add explicit instantiation declarations. [__cplusplus > 201402] (operator>>, operator<<, getline): Re-enable explicit instantiation declarations. * testsuite/21_strings/basic_string/cons/char/86138.cc: New. * testsuite/21_strings/basic_string/cons/wchar_t/86138.cc: New. Added: branches/gcc-8-branch/libstdc++-v3/testsuite/21_strings/basic_string/cons/char/86138.cc branches/gcc-8-branch/libstdc++-v3/testsuite/21_strings/basic_string/cons/wchar_t/86138.cc Modified: branches/gcc-8-branch/libstdc++-v3/ChangeLog branches/gcc-8-branch/libstdc++-v3/include/bits/basic_string.tcc
[Bug fortran/86278] gfortran crashes with internal compiler error: segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86278 kargl at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED CC||kargl at gcc dot gnu.org Resolution|--- |WORKSFORME --- Comment #1 from kargl at gcc dot gnu.org --- This issues has been fixed on all active branches. You either need to build gfortran from sources or wait for the release of gfortran 7.4.
