http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55191
Bug #: 55191 Summary: ICE in compute_antic at tree-ssa-pre.c:2511 Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: translation AssignedTo: unassig...@gcc.gnu.org ReportedBy: antoine.balest...@gmail.com Hello ! The following testcase makes GCC 4.8.0 as of 20121103 ICE at -O2 and higher. $ cat antic.c int a, b; void f(void) { b = a || b; for(a = 0; a < 2; a++); while(1); } $ xgcc -O2 -w antic.c antic.c: In function âfâ: antic.c:3:6: internal compiler error: in compute_antic, at tree-ssa-pre.c:2511 void f(void) ^ Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions.