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Date: Sat, 29 Nov 2008 23:58:00 -0000
Subject: [Bug target/38320]  New: missed movd opcode (32bits mm -> r/m32).
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From: "pluto at agmk dot net" <gcc-bugzilla@gcc.gnu.org>
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#include <mmintrin.h>
int foo( __m64 x )
{
    int y;
    __builtin_memcpy( &y, &x, sizeof( y ) );
    return y;
}

gcc movd.c -O2 -S produces:

foo:    movq    %xmm0, -24(%rsp)
        movl    -24(%rsp), %eax
        ret

while 'movd xmm0, eax' was expected.


-- 
           Summary: missed movd opcode (32bits mm -> r/m32).
           Product: gcc
           Version: 4.3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pluto at agmk dot net
GCC target triplet: x86-gnu-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38320