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Date: Thu, 07 Jan 2010 00:38:00 -0000
Subject: [Bug tree-optimization/42642]  New: "-fcompare-debug failure" with "-O1 -fpeel-loops"
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From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
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Command line:
g++ -O1 -fpeel-loops -fcompare-debug -c testcase.cpp
it has to be compiled as C++ code, even though it's valid C code

Tested revisions (x86_64):
r155680 - crash
r155662 - crash (x86)
r154886 - crash
r154830 - crash
r153685 - OK (built without graphite support, if that matters)

Output:
$ /mnt/svn/gcc-trunk/binary-155680-lto/bin/g++ -O1 -fcompare-debug -fpeel-loops
testcase.cpp -c
g++: testcase.cpp: -fcompare-debug failure

Valgrind:
no errors reported


-- 
           Summary: "-fcompare-debug failure" with "-O1 -fpeel-loops"
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zsojka at seznam dot cz
  GCC host triplet: x86(_64)-pc-linux-gnu
GCC target triplet: x86(_64)-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42642