[Bug target/56513] New: Wrong code generation with -O3 on ARM

[tim.ko...@filezilla-project.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56513



             Bug #: 56513

           Summary: Wrong code generation with -O3 on ARM

    Classification: Unclassified

           Product: gcc

           Version: 4.7.2

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: target

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: tim.ko...@filezilla-project.org





Created attachment 29571

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29571

Small test program exhibiting the problem



If I'm cross-compiling the attached sample-program using gcc 4.7.2 for ARM on

an x86-64 system, the resulting binary behaves wrongly if -O3 is used.



Output with -O0:



value: -23

best:  -10000

a:     -68

value: -22

best:  -23

a:     -23



Output with -O3:



value: -23

best:  -10000

a:     -68

value: -22

best:  -23

a:     65513

BUG