[Bug c/98320] New: Parameter is malformed in the called function

[ypn00vb at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98320

            Bug ID: 98320
           Summary: Parameter is malformed in the called function
           Product: gcc
           Version: 10.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ypn00vb at gmail dot com
  Target Milestone: ---

Created attachment 49779
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49779&action=edit
main function

When compiling with the -m64 option, one of the parameters passed to the
function is damaged. When compiling with the -m32 option, there is no damage,
everything works.
PS. In the assembler listing, you can see that there is no instruction to move
the stack pointer with the -m64 option. Therefore, the assembler insertion of a
flag register push instruction overwrites the parameter in memory.