http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46098
Summary: [4.5/4.6 Regression] ICE: in extract_insn, at recog.c:2100 with -msse3 -ffloat-store and __builtin_ia32_loadupd() Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassig...@gcc.gnu.org ReportedBy: zso...@seznam.cz ----- testcase.c ----- typedef double v2df __attribute__((vector_size (16))); v2df foo (double *d) { return __builtin_ia32_loadupd (d); } ---------------------- Compiler output: $ gcc -msse3 -ffloat-store testcase.c testcase.c: In function 'foo': testcase.c:6:1: error: unrecognizable insn: (insn 7 6 8 3 (set (mem/c/i:V2DF (plus:DI (reg/f:DI 54 virtual-stack-vars) (const_int -16 [0xfffffffffffffff0])) [0 D.2706+0 S16 A128]) (unspec:V2DF [ (mem:V2DF (reg:DI 60) [0 S16 A8]) ] UNSPEC_MOVU)) testcase.c:5 -1 (nil)) testcase.c:6:1: internal compiler error: in extract_insn, at recog.c:2110 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Tested revisions: r165719 - crash r153685 - crash 4.5 r163761 - crash 4.4 r160770 - OK