GCC mainline gets an internal compiler error on powerpc-linux building HMMER (http://hmmer.wustl.edu/) with "-O2 -fmodulo-sched -maltivec". I'll attach a minimized test case. The failure is with trunk; 4.1 and 4.0 don't fail.
elm3b145% /opt/gcc-nightly/trunk/bin/gcc -O2 -fmodulo-sched -maltivec -c hmmer.c hmmer.c: In function bar: hmmer.c:30: internal compiler error: in add_deps_for_def, at ddg.c:243 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. A regression hunt identified this patch: http://gcc.gnu.org/viewcvs?view=rev&rev=110312 r110312 | zadeck | 2006-01-27 22:23:32 +0000 (Fri, 27 Jan 2006) -- Summary: ICE in add_deps_for_def with -fmodulo-sched -maltivec Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: janis at gcc dot gnu dot org GCC target triplet: powerpc-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26855
