[LLVMbugs] [Bug 8725] New: Regression on 2 gcc-torture test

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=8725

           Summary: Regression on 2 gcc-torture test
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Scalar Optimizations
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: quickslyver at free.fr
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=5857)
 --> (http://llvm.org/bugs/attachment.cgi?id=5857)
first falling test

the attached tests are failing, I'm sure that they passed 1 month ago, the last
time I run these test.
I have no time to investigate more :(

They pass at -O0 but fail at -Os, so it's surely a llvm bug

$ clang -v
clang version 2.9 (trunk 120699)
Target: i386-pc-linux-gnu
Thread model: posix

$ clang
~/repos/pitchoun-trunk/sim/regression/invia_regression/cpu/gcc-torture/run/gcc/20071219-1.c
&&./a.out 

$ clang
~/repos/pitchoun-trunk/sim/regression/invia_regression/cpu/gcc-torture/run/gcc/pr35472.c
&& ./a.out

$ clang
~/repos/pitchoun-trunk/sim/regression/invia_regression/cpu/gcc-torture/run/gcc/20071219-1.c
-Os
$ ./a.out 
Aborted

$ clang
~/repos/pitchoun-trunk/sim/regression/invia_regression/cpu/gcc-torture/run/gcc/pr35472.c
-Os
$ ./a.out 
Aborted

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