https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71389
Bug ID: 71389 Summary: ICE on trunk gcc on ivybridge target (df_refs_verify) Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: anton.mitrokhin at phystech dot edu Target Milestone: --- Created attachment 38627 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38627&action=edit Reproducer Reproducer: > g++ -std=c++11 -O3 -march=ivybridge -o out.o -c crash.cpp Output: crash.cpp: In function 'void fn1()': crash.cpp:23:1: internal compiler error: in df_refs_verify, at df-scan.c:4033 } ^ 0x9b0f62 df_refs_verify /export/users/gnutester/stability/svn/trunk/gcc/df-scan.c:4033 0x9b6a16 df_insn_refs_verify /export/users/gnutester/stability/svn/trunk/gcc/df-scan.c:4115 0x9b6fb3 df_bb_verify /export/users/gnutester/stability/svn/trunk/gcc/df-scan.c:4142 0x9ba5f7 df_scan_verify() /export/users/gnutester/stability/svn/trunk/gcc/df-scan.c:4274 0x9a5384 df_verify() /export/users/gnutester/stability/svn/trunk/gcc/df-core.c:1831 0x9a5384 df_analyze_1 /export/users/gnutester/stability/svn/trunk/gcc/df-core.c:1217 0xba613e ira /export/users/gnutester/stability/svn/trunk/gcc/ira.c:5137 0xba613e execute /export/users/gnutester/stability/svn/trunk/gcc/ira.c:5525 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. > gcc -v: Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/export/users/amitrokh/gcc_trunk/bin/../libexec/gcc/x86_64-pc-linux-gnu/7.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /export/users/gnutester/stability/svn/trunk/configure --with-arch=corei7 --with-cpu=corei7 --enable-clocale=gnu --with-system-zlib --enable-shared --with-demangler-in-ld --enable-cloog-backend=isl --with-fpmath=sse --with-pkgversion=Revision=237011/svn-rev:237016/ --prefix=/export/users/gnutester/stability/work/trunk/64/install --enable-languages=c,c++,fortran,java,lto Thread model: posix gcc version 7.0.0 20160601 (experimental) (Revision=237011/svn-rev:237016/)