http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47489
Summary: ICE in print_pattern, at sched-vis.c:602 (affecting
mips, with slim RTL dumps)
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: rtl-optimization
AssignedTo: [email protected]
ReportedBy: [email protected]
Hi,
I have hit a ICE and could reduce it to the following minimal example:
$ cat bug-demo.c
int func() {
return 0;
}
$ build-mips/gcc/cc1 -O1 -fdump-rtl-mach-slim bug-demo.c
func
Analyzing compilation unit
Performing interprocedural optimizations
<*free_lang_data> <visibility> <early_local_cleanups> <emutls> <whole-program>
<ipa-profile> <inline> <pure-const> <static-var>Assembling functions:
func
bug-demo.c: In function ‘func’:
bug-demo.c:3:1: internal compiler error: in print_pattern, at sched-vis.c:602
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
It does not happen with -fdump-rtl-mach, i.e. without slim.
I could not reproduce it by passing individual "-f..." flags instead of -O2,
even though the output of "--help", which mentions which flags are
enabled/disabled, is identical.
This is gcc-4.6 snapshot 20101225, configured using the command line:
../gcc-4.6-20101225/configure --prefix=$PWD/../install --disable-bootstrap
--disable-multilib --enable-stage1-languages=c
--disable-lib{gcj,ada,ssp,mudflap,gomp} --enable-languages=c
--target=mips-linux
Thanks,
Joachim
