[Bug target/39910] New: [4.5 regression] i386: Error: suffix or operands invalid for `fidivr'

["gerald at pfeifer dot com" <gcc-bugzilla at gcc dot gnu dot org>]

Building Wine started to fail on i386-unknown-freebsd7.1 with the
following failure mode:

...gcc -c -I. -I. -I../../include -I../../include
-D__WINESRC__  -D_REENTRANT -fPIC -Wall -pipe -fno-strict-aliasing
-Wdeclaration-after-statement -Wwrite-strings -Wtype-limits -Wpointer-arith
-I/usr/local/include -g -O2  -o graphics.o graphics.c
{standard input}: Assembler messages:
{standard input}:7118: Error: suffix or operands invalid for `fidivr'
{standard input}:7123: Error: suffix or operands invalid for `fidivr'
gmake[2]: *** [graphics.o] Error 1
gmake[2]: Leaving directory `/usr/test/Wine/dlls/gdiplus'
gmake[1]: *** [gdiplus] Error 2
gmake[1]: Leaving directory `/usr/test/Wine/dlls'
gmake: *** [dlls] Error 2

The assembly code in question is:

        .loc 1 1023 0
        movl    (%esi), %eax
        movl    16(%ebp), %edx
        filds   14(%edx)
        fidivrw 6(%edx)             <-- here
        fstps   12(%eax)
        .loc 1 1024 0
        movl    (%esi), %eax
        filds   14(%edx)
        fidivrw 10(%edx)            <-- here
        fstps   16(%eax)
        .loc 1 1025 0

Sadly, FreeBSD still uses gas 2.15; still, this is a regression.


-- 
           Summary: [4.5 regression] i386: Error: suffix or operands invalid
                    for `fidivr'
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: gerald at pfeifer dot com
  GCC host triplet: i386-unknown-freebsd7.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39910