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[Bug rtl-optimization/49994] [4.7 Regression] ICE: in maybe_record_trace_start, at dwarf2cfi.c:2234 with -Os -fsched2-use-superblocks
- From: "zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 6 Aug 2011 09:23:47 +0000
- Subject: [Bug rtl-optimization/49994] [4.7 Regression] ICE: in maybe_record_trace_start, at dwarf2cfi.c:2234 with -Os -fsched2-use-superblocks
- Auto-submitted: auto-generated
- References: <bug-49994-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49994
--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> 2011-08-06 09:23:43 UTC ---
Created attachment 24931
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24931
more real-life testcase
$ gcc -O -fno-omit-frame-pointer -fschedule-insns2 -fsched2-use-superblocks
testcase.c
testcase.c: In function 'bar':
testcase.c:7:1: internal compiler error: in maybe_record_trace_start, at
dwarf2cfi.c:2234
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
This ICE occurs several times when running the libstdc++ testsuite with
"-fno-omit-frame-pointer -fsched2-use-superblocks" in RUNTESTFLAGS.