[Bug target/82196] New: -mcall-ms2sysv-xlogues stubs sometimes use wrong MOV instruction

[daniel.santos at pobox dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82196

            Bug ID: 82196
           Summary: -mcall-ms2sysv-xlogues stubs sometimes use wrong MOV
                    instruction
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: daniel.santos at pobox dot com
  Target Milestone: ---
            Target: x86_64-*-*

The test for rather we use movaps or vmovaps is in
libgcc/config/i386/i386-asm.h and tests the cpp macros __SSE2__ and __AVX__,
which is an error.  This results in at least one situation where movaps is used
when vmovaps is available on the build target.  I would presume that the
alternative condition can exist which would result in a bad opcode.