The following valid testcase triggers an ICE since GCC 4.2.0 when compiled
with "-fmudflap":
====================================
#include<setjmp.h>
jmp_buf buf;
void foo(volatile char* p)
{
if (__builtin_setjmp(buf))
*p;
}
====================================
bug.c: In function 'foo':
bug.c:6: error: control flow in the middle of basic block 11
bug.c:6: error: control flow in the middle of basic block 11
bug.c:6: internal compiler error: verify_flow_info failed
Please submit a full bug report, [etc.]
--
Summary: [4.2/4.3/4.4 regression] ICE with __builtin_setjmp and -
fmudflap
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, monitored
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: reichelt at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35314
