[Bug c/54952] New: Program crash on M32C when stack frame is more then 128 bytes

[m.galante at centrosistemi dot it]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54952



             Bug #: 54952

           Summary: Program crash on M32C when stack frame is more then

                    128 bytes

    Classification: Unclassified

           Product: gcc

           Version: 4.7.2

            Status: UNCONFIRMED

          Severity: critical

          Priority: P3

         Component: c

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

        ReportedBy: m.gala...@centrosistemi.it





Created attachment 28461

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28461

Test case



m32c-elf-gcc (GCC) 4.7.2 hosted on Windows XP.



If I compile and run the attached program with:



  m32c-elf-gcc -msim -mcpu=m32c -O1 -DDATASIZE=126 stack.c

  m32c-elf-run a.out



it works well. But if I increase DATASIZE to 127:



  m32c-elf-gcc -msim -mcpu=m32c -O1 -DDATASIZE=127 stack.c

  m32c-elf-run a.out



the program crashes.