http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48374
Summary: ICE: in single_succ_edge, at basic-block.h:562 with
-fselective-scheduling2 and __builtin_unreachable()
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: zso...@seznam.cz
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 23824
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23824
reduced testcase
Compiler output:
$ gcc -O -fschedule-insns2 -fsel-sched-pipelining
-fsel-sched-pipelining-outer-loops -fselective-scheduling2 --param
max-sched-extend-regions-iters=100 testcase.c
testcase.c: In function 'foo':
testcase.c:14:1: internal compiler error: in single_succ_edge, at
basic-block.h:562
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Tested revisions:
r171735 - crash
4.6 r171597 - crash
4.5 r171597 - crash
4.4 r171597 - doesn't know __builtin_unreachable
