http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59332
Bug ID: 59332 Summary: Segmentation fault in inline_summary with LTO + attribute optimize Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: lto Assignee: unassigned at gcc dot gnu.org Reporter: d.g.gorbachev at gmail dot com $ echo '__attribute__((optimize("no-lto"))) void foo(void) { }' > 1.c $ gcc -S -flto 1.c 1.c:1:1: internal compiler error: Segmentation fault __attribute__((optimize("no-lto"))) void foo(void) { } ^ 0x86dfff0 crash_signal ../../gcc-4.9/gcc/toplev.c:336 0x85230d4 vec<inline_summary, va_gc, vl_embed>::operator[](unsigned int) ../../gcc-4.9/gcc/vec.h:718 0x85230d4 inline_summary ../../gcc-4.9/gcc/ipa-inline.h:242 0x85230d4 inline_write_summary() ../../gcc-4.9/gcc/ipa-inline-analysis.c:4079 0x86172ee ipa_write_summaries_2 ../../gcc-4.9/gcc/passes.c:2310 0x86173a4 ipa_write_summaries_1 ../../gcc-4.9/gcc/passes.c:2340 0x8618148 ipa_write_summaries() ../../gcc-4.9/gcc/passes.c:2399 0x82f22a0 ipa_passes ../../gcc-4.9/gcc/cgraphunit.c:2030 0x82f31b4 compile() ../../gcc-4.9/gcc/cgraphunit.c:2126 0x82f3519 finalize_compilation_unit() ../../gcc-4.9/gcc/cgraphunit.c:2280 0x8143690 c_write_global_declarations() ../../gcc-4.9/gcc/c/c-decl.c:10388 GCC 4.9.0 20131124. Also fails with GCC 4.7, 4.8.