[Bug target/113243] New: mips: Wrong code for pr91323.c

[xry111 at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113243

            Bug ID: 113243
           Summary: mips: Wrong code for pr91323.c
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: xry111 at gcc dot gnu.org
  Target Milestone: ---

In pr91323.c:

int
__attribute__ ((noinline, noclone))
f3 (float a, float b)
{
  return a < b || a > b;
}

is compiled to:

test(float, float):
        c.ueq.s $fcc5,$f12,$f14
        li      $2,1
        jr      $31
        movt    $2,$0,$fcc5

for mips64r2, and 

test(float, float):
        cmp.ne.s        $f12,$f12,$f14
        bc1nez  $f12,$L4
        li      $2,1
        move    $2,$0
$L4:
        jrc     $31

for mips64r6.  Both are incorrect because both cmp.ne.s and c.ueq.s do not
raise INVALID exception with qNaN inputs, but in C "<" and ">" should raise
INVALID for qNaN inputs.