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
