[Bug tree-optimization/60656] [4.8 regression] x86 vectorization produces wrong code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60656 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added CC||corydoras at ridiculousfish dot co ||m --- Comment #17 from Richard Biener rguenth at gcc dot gnu.org --- *** Bug 61108 has been marked as a duplicate of this bug. ***
[Bug tree-optimization/60656] [4.8 regression] x86 vectorization produces wrong code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60656 --- Comment #18 from Richard Biener rguenth at gcc dot gnu.org --- Author: rguenth Date: Wed Jun 10 12:53:09 2015 New Revision: 224327 URL: https://gcc.gnu.org/viewcvs?rev=224327root=gccview=rev Log: 2015-06-10 Richard Biener rguent...@suse.de Backport from mainline 2014-04-04 Cong Hou co...@google.com PR tree-optimization/60656 * tree-vect-stmts.c (supportable_widening_operation): Fix a bug that elements in a vector with vect_used_by_reduction property are incorrectly reordered when the operation on it is not consistant with the one in reduction operation. * gcc.dg/vect/pr60656.c: New test. 2014-01-31 Richard Biener rguent...@suse.de PR middle-end/59990 * builtins.c (fold_builtin_memory_op): Make sure to not use a floating-point mode or a boolean or enumeral type for the copy operation. * gcc.dg/torture/pr59990.c: New testcase. * gcc.target/i386/pr49168-1.c: Adjust. Added: branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/torture/pr59990.c branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/vect/pr60656.c Modified: branches/gcc-4_8-branch/gcc/ChangeLog branches/gcc-4_8-branch/gcc/builtins.c branches/gcc-4_8-branch/gcc/testsuite/ChangeLog branches/gcc-4_8-branch/gcc/testsuite/gcc.target/i386/pr49168-1.c branches/gcc-4_8-branch/gcc/tree-vect-stmts.c
[Bug tree-optimization/60656] [4.8 regression] x86 vectorization produces wrong code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60656 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Status|REOPENED|ASSIGNED Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org --- Comment #16 from Richard Biener rguenth at gcc dot gnu.org --- I'll see if it is backportable easily.
[Bug tree-optimization/60656] [4.8 regression] x86 vectorization produces wrong code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60656 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #19 from Richard Biener rguenth at gcc dot gnu.org --- Fixed.
[Bug tree-optimization/60656] [4.8 regression] x86 vectorization produces wrong code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60656 Bernhard Kaindl bernhard.kaindl at thalesgroup dot com changed: What|Removed |Added CC||bernhard.kaindl@thalesgroup ||.com --- Comment #15 from Bernhard Kaindl bernhard.kaindl at thalesgroup dot com --- Confirmed: * Fixed in: gcc-4.9.2 (release) * NOT Fixed in: gcc-4.8.4 (release) It seems indeed only i386, x32 and x86_64 (-m32, -mx32 and -m64) are affected. -fopt-info-vec-note show that e.g. powerpc powerpc64 don't vectorize the loop. The mainline fix from Comment #8 apples without fuzz and fixes this wrong code issue in gcc-4.8.4. Apply it for 4.8.5?
[Bug tree-optimization/60656] [4.8 regression] x86 vectorization produces wrong code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60656 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Target Milestone|4.8.4 |4.8.5 --- Comment #14 from Jakub Jelinek jakub at gcc dot gnu.org --- GCC 4.8.4 has been released.
[Bug tree-optimization/60656] [4.8 regression] x86 vectorization produces wrong code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60656 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|4.8.3 |4.8.4 --- Comment #13 from Richard Biener rguenth at gcc dot gnu.org --- GCC 4.8.3 is being released, adjusting target milestone.
[Bug tree-optimization/60656] [4.8 regression] x86 vectorization produces wrong code
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60656 Bernd Edlinger bernd.edlinger at hotmail dot de changed: What|Removed |Added CC||bernd.edlinger at hotmail dot de --- Comment #11 from Bernd Edlinger bernd.edlinger at hotmail dot de --- Hmm, with gcc-4.9.0-RC-20140411 on arm-linux-gnueabihf I see the following: ERROR: gcc.dg/vect/pr60656.c: error executing dg-final: can't read et_vect_widen_mult_si_to_di_pattern_saved: no such variable UNRESOLVED: gcc.dg/vect/pr60656.c: error executing dg-final: can't read et_vect_widen_mult_si_to_di_pattern_saved: no such variable what does that mean?
[Bug tree-optimization/60656] [4.8 regression] x86 vectorization produces wrong code
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60656 --- Comment #12 from Jakub Jelinek jakub at gcc dot gnu.org --- Should be fixed already with r209363.
[Bug tree-optimization/60656] [4.8 regression] x86 vectorization produces wrong code
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60656 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Status|RESOLVED|REOPENED Resolution|FIXED |--- Summary|[4.8/4.9 regression] x86|[4.8 regression] x86 |vectorization produces |vectorization produces |wrong code |wrong code --- Comment #10 from Jakub Jelinek jakub at gcc dot gnu.org --- Actually, still not fixed on the 4.8 branch, only on the trunk.
