http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54942
Bug #: 54942 Summary: [4.8 Regression] ICE: OOM with -O3 -fno-cse-follow-jumps -funroll-loops Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassig...@gcc.gnu.org ReportedBy: zso...@seznam.cz Created attachment 28459 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28459 reduced testcase Compiler output: $ gcc -O3 -fno-cse-follow-jumps -funroll-loops testcase.c cc1: out of memory allocating 17179869180 bytes after a total of 733184 bytes The original testcase didn't have uninitialised variables... I can provide it if needed. Tested revisions: r192509 - fail r191586 - OK 4.7 r191640 - OK