[40/46] i386: Don't enable MMX in 64-bit mode by default

Message ID 20190201211809.963-41-hjl.tools@gmail.com
State New
Headers show
Series
  • Implement MMX intrinsics with SSE
Related show

Commit Message

H.J. Lu Feb. 1, 2019, 9:18 p.m.
In 64-bit mode, don't enable MMX by default and allow SSE/SSE2/SSSE3
to emulate MMX intrinsics when MMX is disabled.  For pr82483-1.c and
pr82483-2.c, "-mssse3 -mno-mmx" no longer ICEs in 64-bit mode since MMX
intrinsics are supported now when MMX is disabled.

gcc/

	PR target/89021
	* config/i386/driver-i386.c (host_detect_local_cpu): Pass
	-mmmx-native instead -mmmx to ix86_option_override_internal.
	* config/i386/i386-builtin.def: Enable MMX intrinsics with
	SSE/SSE2/SSSE3.
	* config/i386/i386.c (ix86_option_override_internal): Don't
	enable MMX in 64-bit mode by default.  Turn on MMX for -msse
	or -mmmx-native when not in 64-bit mode.
	(bdesc_tm): Enable MMX intrinsics with SSE/SSE2/SSSE3.
	(ix86_init_mmx_sse_builtins): Likewise.
	(ix86_expand_builtin): Allow SSE/SSE2/SSSE3 to emulate MMX
	intrinsics in 64-bit mode when MMX is disabled.
	* config/i386/i386.opt (-mmmx-native): New.  Undocumented
	command-line option.
	* config/i386/mmintrin.h: Don't enable MMX in 64-bit mode.

gcc/testsuite/

	PR target/89021
	* gcc.target/i386/pr82483-1.c: Error only on ia32.
	* gcc.target/i386/pr82483-2.c: Likewise.
	* gcc.target/i386/sse-mmx-1.c: New test.
	* objc.dg/gnu-encoding/struct-layout-1.h: Include <mmintrin.h>
	in 64-bit mode when MMX is disabled and SSE2 is enabled.
---
 gcc/config/i386/driver-i386.c                 |   4 +-
 gcc/config/i386/i386-builtin.def              | 126 +++++++++---------
 gcc/config/i386/i386.c                        |  64 ++++++---
 gcc/config/i386/i386.opt                      |   4 +
 gcc/config/i386/mmintrin.h                    |  10 +-
 gcc/testsuite/gcc.target/i386/pr82483-1.c     |   2 +-
 gcc/testsuite/gcc.target/i386/pr82483-2.c     |   2 +-
 gcc/testsuite/gcc.target/i386/sse-mmx-1.c     |  12 ++
 .../objc.dg/gnu-encoding/struct-layout-1.h    |   2 +-
 9 files changed, 139 insertions(+), 87 deletions(-)
 create mode 100644 gcc/testsuite/gcc.target/i386/sse-mmx-1.c

-- 
2.20.1

Patch

diff --git a/gcc/config/i386/driver-i386.c b/gcc/config/i386/driver-i386.c
index 75f70269517..38914126354 100644
--- a/gcc/config/i386/driver-i386.c
+++ b/gcc/config/i386/driver-i386.c
@@ -1070,7 +1070,9 @@  const char *host_detect_local_cpu (int argc, const char **argv)
 
   if (arch)
     {
-      const char *mmx = has_mmx ? " -mmmx" : " -mno-mmx";
+      /* Pass -mmmx-native, instead of -mmmx, to x86 backend so that
+         MMX won't be enabled by -march=native in 64-bit mode.  */
+      const char *mmx = has_mmx ? " -mmmx-native" : " -mno-mmx";
       const char *mmx3dnow = has_3dnow ? " -m3dnow" : " -mno-3dnow";
       const char *sse = has_sse ? " -msse" : " -mno-sse";
       const char *sse2 = has_sse2 ? " -msse2" : " -mno-sse2";
diff --git a/gcc/config/i386/i386-builtin.def b/gcc/config/i386/i386-builtin.def
index 88005f4687f..10a9d631f29 100644
--- a/gcc/config/i386/i386-builtin.def
+++ b/gcc/config/i386/i386-builtin.def
@@ -100,7 +100,7 @@  BDESC (0, 0, CODE_FOR_fnstsw, "__builtin_ia32_fnstsw", IX86_BUILTIN_FNSTSW, UNKN
 BDESC (0, 0, CODE_FOR_fnclex, "__builtin_ia32_fnclex", IX86_BUILTIN_FNCLEX, UNKNOWN, (int) VOID_FTYPE_VOID)
 
 /* MMX */
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_emms, "__builtin_ia32_emms", IX86_BUILTIN_EMMS, UNKNOWN, (int) VOID_FTYPE_VOID)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_emms, "__builtin_ia32_emms", IX86_BUILTIN_EMMS, UNKNOWN, (int) VOID_FTYPE_VOID)
 
 /* 3DNow! */
 BDESC (OPTION_MASK_ISA_3DNOW, 0, CODE_FOR_mmx_femms, "__builtin_ia32_femms", IX86_BUILTIN_FEMMS, UNKNOWN, (int) VOID_FTYPE_VOID)
@@ -442,68 +442,68 @@  BDESC (0, 0, CODE_FOR_rotrqi3, "__builtin_ia32_rorqi", IX86_BUILTIN_RORQI, UNKNO
 BDESC (0, 0, CODE_FOR_rotrhi3, "__builtin_ia32_rorhi", IX86_BUILTIN_RORHI, UNKNOWN, (int) UINT16_FTYPE_UINT16_INT)
 
 /* MMX */
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_addv8qi3, "__builtin_ia32_paddb", IX86_BUILTIN_PADDB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_addv4hi3, "__builtin_ia32_paddw", IX86_BUILTIN_PADDW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_addv2si3, "__builtin_ia32_paddd", IX86_BUILTIN_PADDD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_subv8qi3, "__builtin_ia32_psubb", IX86_BUILTIN_PSUBB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_subv4hi3, "__builtin_ia32_psubw", IX86_BUILTIN_PSUBW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_subv2si3, "__builtin_ia32_psubd", IX86_BUILTIN_PSUBD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
-
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ssaddv8qi3, "__builtin_ia32_paddsb", IX86_BUILTIN_PADDSB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ssaddv4hi3, "__builtin_ia32_paddsw", IX86_BUILTIN_PADDSW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_sssubv8qi3, "__builtin_ia32_psubsb", IX86_BUILTIN_PSUBSB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_sssubv4hi3, "__builtin_ia32_psubsw", IX86_BUILTIN_PSUBSW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_usaddv8qi3, "__builtin_ia32_paddusb", IX86_BUILTIN_PADDUSB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_usaddv4hi3, "__builtin_ia32_paddusw", IX86_BUILTIN_PADDUSW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ussubv8qi3, "__builtin_ia32_psubusb", IX86_BUILTIN_PSUBUSB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ussubv4hi3, "__builtin_ia32_psubusw", IX86_BUILTIN_PSUBUSW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
-
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_mulv4hi3, "__builtin_ia32_pmullw", IX86_BUILTIN_PMULLW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_smulv4hi3_highpart, "__builtin_ia32_pmulhw", IX86_BUILTIN_PMULHW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
-
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_andv2si3, "__builtin_ia32_pand", IX86_BUILTIN_PAND, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_andnotv2si3, "__builtin_ia32_pandn", IX86_BUILTIN_PANDN, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_iorv2si3, "__builtin_ia32_por", IX86_BUILTIN_POR, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_xorv2si3, "__builtin_ia32_pxor", IX86_BUILTIN_PXOR, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
-
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_eqv8qi3, "__builtin_ia32_pcmpeqb", IX86_BUILTIN_PCMPEQB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_eqv4hi3, "__builtin_ia32_pcmpeqw", IX86_BUILTIN_PCMPEQW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_eqv2si3, "__builtin_ia32_pcmpeqd", IX86_BUILTIN_PCMPEQD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_gtv8qi3, "__builtin_ia32_pcmpgtb", IX86_BUILTIN_PCMPGTB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_gtv4hi3, "__builtin_ia32_pcmpgtw", IX86_BUILTIN_PCMPGTW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_gtv2si3, "__builtin_ia32_pcmpgtd", IX86_BUILTIN_PCMPGTD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
-
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_punpckhbw, "__builtin_ia32_punpckhbw", IX86_BUILTIN_PUNPCKHBW, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_punpckhwd, "__builtin_ia32_punpckhwd", IX86_BUILTIN_PUNPCKHWD, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_punpckhdq, "__builtin_ia32_punpckhdq", IX86_BUILTIN_PUNPCKHDQ, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_punpcklbw, "__builtin_ia32_punpcklbw", IX86_BUILTIN_PUNPCKLBW, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_punpcklwd, "__builtin_ia32_punpcklwd", IX86_BUILTIN_PUNPCKLWD, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_punpckldq, "__builtin_ia32_punpckldq", IX86_BUILTIN_PUNPCKLDQ, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
-
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_packsswb, "__builtin_ia32_packsswb", IX86_BUILTIN_PACKSSWB, UNKNOWN, (int) V8QI_FTYPE_V4HI_V4HI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_packssdw, "__builtin_ia32_packssdw", IX86_BUILTIN_PACKSSDW, UNKNOWN, (int) V4HI_FTYPE_V2SI_V2SI)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_packuswb, "__builtin_ia32_packuswb", IX86_BUILTIN_PACKUSWB, UNKNOWN, (int) V8QI_FTYPE_V4HI_V4HI)
-
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_pmaddwd, "__builtin_ia32_pmaddwd", IX86_BUILTIN_PMADDWD, UNKNOWN, (int) V2SI_FTYPE_V4HI_V4HI)
-
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ashlv4hi3, "__builtin_ia32_psllwi", IX86_BUILTIN_PSLLWI, UNKNOWN, (int) V4HI_FTYPE_V4HI_SI_COUNT)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ashlv2si3, "__builtin_ia32_pslldi", IX86_BUILTIN_PSLLDI, UNKNOWN, (int) V2SI_FTYPE_V2SI_SI_COUNT)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ashlv1di3, "__builtin_ia32_psllqi", IX86_BUILTIN_PSLLQI, UNKNOWN, (int) V1DI_FTYPE_V1DI_SI_COUNT)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ashlv4hi3, "__builtin_ia32_psllw", IX86_BUILTIN_PSLLW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI_COUNT)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ashlv2si3, "__builtin_ia32_pslld", IX86_BUILTIN_PSLLD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI_COUNT)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ashlv1di3, "__builtin_ia32_psllq", IX86_BUILTIN_PSLLQ, UNKNOWN, (int) V1DI_FTYPE_V1DI_V1DI_COUNT)
-
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_lshrv4hi3, "__builtin_ia32_psrlwi", IX86_BUILTIN_PSRLWI, UNKNOWN, (int) V4HI_FTYPE_V4HI_SI_COUNT)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_lshrv2si3, "__builtin_ia32_psrldi", IX86_BUILTIN_PSRLDI, UNKNOWN, (int) V2SI_FTYPE_V2SI_SI_COUNT)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_lshrv1di3, "__builtin_ia32_psrlqi", IX86_BUILTIN_PSRLQI, UNKNOWN, (int) V1DI_FTYPE_V1DI_SI_COUNT)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_lshrv4hi3, "__builtin_ia32_psrlw", IX86_BUILTIN_PSRLW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI_COUNT)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_lshrv2si3, "__builtin_ia32_psrld", IX86_BUILTIN_PSRLD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI_COUNT)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_lshrv1di3, "__builtin_ia32_psrlq", IX86_BUILTIN_PSRLQ, UNKNOWN, (int) V1DI_FTYPE_V1DI_V1DI_COUNT)
-
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ashrv4hi3, "__builtin_ia32_psrawi", IX86_BUILTIN_PSRAWI, UNKNOWN, (int) V4HI_FTYPE_V4HI_SI_COUNT)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ashrv2si3, "__builtin_ia32_psradi", IX86_BUILTIN_PSRADI, UNKNOWN, (int) V2SI_FTYPE_V2SI_SI_COUNT)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ashrv4hi3, "__builtin_ia32_psraw", IX86_BUILTIN_PSRAW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI_COUNT)
-BDESC (OPTION_MASK_ISA_MMX, 0, CODE_FOR_mmx_ashrv2si3, "__builtin_ia32_psrad", IX86_BUILTIN_PSRAD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_addv8qi3, "__builtin_ia32_paddb", IX86_BUILTIN_PADDB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_addv4hi3, "__builtin_ia32_paddw", IX86_BUILTIN_PADDW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_addv2si3, "__builtin_ia32_paddd", IX86_BUILTIN_PADDD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_subv8qi3, "__builtin_ia32_psubb", IX86_BUILTIN_PSUBB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_subv4hi3, "__builtin_ia32_psubw", IX86_BUILTIN_PSUBW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_subv2si3, "__builtin_ia32_psubd", IX86_BUILTIN_PSUBD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
+
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ssaddv8qi3, "__builtin_ia32_paddsb", IX86_BUILTIN_PADDSB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ssaddv4hi3, "__builtin_ia32_paddsw", IX86_BUILTIN_PADDSW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_sssubv8qi3, "__builtin_ia32_psubsb", IX86_BUILTIN_PSUBSB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_sssubv4hi3, "__builtin_ia32_psubsw", IX86_BUILTIN_PSUBSW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_usaddv8qi3, "__builtin_ia32_paddusb", IX86_BUILTIN_PADDUSB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_usaddv4hi3, "__builtin_ia32_paddusw", IX86_BUILTIN_PADDUSW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ussubv8qi3, "__builtin_ia32_psubusb", IX86_BUILTIN_PSUBUSB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ussubv4hi3, "__builtin_ia32_psubusw", IX86_BUILTIN_PSUBUSW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
+
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_mulv4hi3, "__builtin_ia32_pmullw", IX86_BUILTIN_PMULLW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_smulv4hi3_highpart, "__builtin_ia32_pmulhw", IX86_BUILTIN_PMULHW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
+
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_andv2si3, "__builtin_ia32_pand", IX86_BUILTIN_PAND, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_andnotv2si3, "__builtin_ia32_pandn", IX86_BUILTIN_PANDN, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_iorv2si3, "__builtin_ia32_por", IX86_BUILTIN_POR, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_xorv2si3, "__builtin_ia32_pxor", IX86_BUILTIN_PXOR, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
+
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_eqv8qi3, "__builtin_ia32_pcmpeqb", IX86_BUILTIN_PCMPEQB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_eqv4hi3, "__builtin_ia32_pcmpeqw", IX86_BUILTIN_PCMPEQW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_eqv2si3, "__builtin_ia32_pcmpeqd", IX86_BUILTIN_PCMPEQD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_gtv8qi3, "__builtin_ia32_pcmpgtb", IX86_BUILTIN_PCMPGTB, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_gtv4hi3, "__builtin_ia32_pcmpgtw", IX86_BUILTIN_PCMPGTW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_gtv2si3, "__builtin_ia32_pcmpgtd", IX86_BUILTIN_PCMPGTD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
+
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_punpckhbw, "__builtin_ia32_punpckhbw", IX86_BUILTIN_PUNPCKHBW, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_punpckhwd, "__builtin_ia32_punpckhwd", IX86_BUILTIN_PUNPCKHWD, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_punpckhdq, "__builtin_ia32_punpckhdq", IX86_BUILTIN_PUNPCKHDQ, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_punpcklbw, "__builtin_ia32_punpcklbw", IX86_BUILTIN_PUNPCKLBW, UNKNOWN, (int) V8QI_FTYPE_V8QI_V8QI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_punpcklwd, "__builtin_ia32_punpcklwd", IX86_BUILTIN_PUNPCKLWD, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_punpckldq, "__builtin_ia32_punpckldq", IX86_BUILTIN_PUNPCKLDQ, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI)
+
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_packsswb, "__builtin_ia32_packsswb", IX86_BUILTIN_PACKSSWB, UNKNOWN, (int) V8QI_FTYPE_V4HI_V4HI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_packssdw, "__builtin_ia32_packssdw", IX86_BUILTIN_PACKSSDW, UNKNOWN, (int) V4HI_FTYPE_V2SI_V2SI)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_packuswb, "__builtin_ia32_packuswb", IX86_BUILTIN_PACKUSWB, UNKNOWN, (int) V8QI_FTYPE_V4HI_V4HI)
+
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_pmaddwd, "__builtin_ia32_pmaddwd", IX86_BUILTIN_PMADDWD, UNKNOWN, (int) V2SI_FTYPE_V4HI_V4HI)
+
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ashlv4hi3, "__builtin_ia32_psllwi", IX86_BUILTIN_PSLLWI, UNKNOWN, (int) V4HI_FTYPE_V4HI_SI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ashlv2si3, "__builtin_ia32_pslldi", IX86_BUILTIN_PSLLDI, UNKNOWN, (int) V2SI_FTYPE_V2SI_SI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ashlv1di3, "__builtin_ia32_psllqi", IX86_BUILTIN_PSLLQI, UNKNOWN, (int) V1DI_FTYPE_V1DI_SI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ashlv4hi3, "__builtin_ia32_psllw", IX86_BUILTIN_PSLLW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ashlv2si3, "__builtin_ia32_pslld", IX86_BUILTIN_PSLLD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ashlv1di3, "__builtin_ia32_psllq", IX86_BUILTIN_PSLLQ, UNKNOWN, (int) V1DI_FTYPE_V1DI_V1DI_COUNT)
+
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_lshrv4hi3, "__builtin_ia32_psrlwi", IX86_BUILTIN_PSRLWI, UNKNOWN, (int) V4HI_FTYPE_V4HI_SI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_lshrv2si3, "__builtin_ia32_psrldi", IX86_BUILTIN_PSRLDI, UNKNOWN, (int) V2SI_FTYPE_V2SI_SI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_lshrv1di3, "__builtin_ia32_psrlqi", IX86_BUILTIN_PSRLQI, UNKNOWN, (int) V1DI_FTYPE_V1DI_SI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_lshrv4hi3, "__builtin_ia32_psrlw", IX86_BUILTIN_PSRLW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_lshrv2si3, "__builtin_ia32_psrld", IX86_BUILTIN_PSRLD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_lshrv1di3, "__builtin_ia32_psrlq", IX86_BUILTIN_PSRLQ, UNKNOWN, (int) V1DI_FTYPE_V1DI_V1DI_COUNT)
+
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ashrv4hi3, "__builtin_ia32_psrawi", IX86_BUILTIN_PSRAWI, UNKNOWN, (int) V4HI_FTYPE_V4HI_SI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ashrv2si3, "__builtin_ia32_psradi", IX86_BUILTIN_PSRADI, UNKNOWN, (int) V2SI_FTYPE_V2SI_SI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ashrv4hi3, "__builtin_ia32_psraw", IX86_BUILTIN_PSRAW, UNKNOWN, (int) V4HI_FTYPE_V4HI_V4HI_COUNT)
+BDESC (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_mmx_ashrv2si3, "__builtin_ia32_psrad", IX86_BUILTIN_PSRAD, UNKNOWN, (int) V2SI_FTYPE_V2SI_V2SI_COUNT)
 
 /* 3DNow! */
 BDESC (OPTION_MASK_ISA_3DNOW, 0, CODE_FOR_mmx_pf2id, "__builtin_ia32_pf2id", IX86_BUILTIN_PF2ID, UNKNOWN, (int) V2SI_FTYPE_V2SF)
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index d8bd018b800..ae517959639 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -3727,7 +3727,9 @@  ix86_option_override_internal (bool main_args_p,
 	/* Default cpu tuning to the architecture.  */
 	ix86_tune = ix86_arch;
 
-	if (((processor_alias_table[i].flags & PTA_MMX) != 0)
+	/* Don't enable MMX in 64-bit mode by default.  */
+	if (!TARGET_64BIT_P (opts->x_ix86_isa_flags)
+	    && ((processor_alias_table[i].flags & PTA_MMX) != 0)
 	    && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_MMX))
 	  opts->x_ix86_isa_flags |= OPTION_MASK_ISA_MMX;
 	if (((processor_alias_table[i].flags & PTA_3DNOW) != 0)
@@ -4165,12 +4167,12 @@  ix86_option_override_internal (bool main_args_p,
       opts->x_target_flags
 	|= TARGET_SUBTARGET64_DEFAULT & ~opts_set->x_target_flags;
 
-      /* Enable by default the SSE and MMX builtins.  Do allow the user to
-	 explicitly disable any of these.  In particular, disabling SSE and
-	 MMX for kernel code is extremely useful.  */
+      /* Enable the SSE builtins by default.  Do allow the user to
+	 explicitly disable any of these.  In particular, disabling
+	 SSE for kernel code is extremely useful.  */
       if (!ix86_arch_specified)
       opts->x_ix86_isa_flags
-	|= ((OPTION_MASK_ISA_SSE2 | OPTION_MASK_ISA_SSE | OPTION_MASK_ISA_MMX
+	|= ((OPTION_MASK_ISA_SSE2 | OPTION_MASK_ISA_SSE
 	     | TARGET_SUBTARGET64_ISA_DEFAULT)
             & ~opts->x_ix86_isa_flags_explicit);
 
@@ -4216,8 +4218,11 @@  ix86_option_override_internal (bool main_args_p,
   if (!TARGET_80387_P (opts->x_target_flags))
     opts->x_target_flags |= MASK_NO_FANCY_MATH_387;
 
-  /* Turn on MMX builtins for -msse.  */
-  if (TARGET_SSE_P (opts->x_ix86_isa_flags))
+  /* Turn on MMX builtins for -msse or -mmmx-native when not in 64-bit
+     mode.  */
+  if (!TARGET_64BIT_P (opts->x_ix86_isa_flags)
+      && (TARGET_SSE_P (opts->x_ix86_isa_flags)
+	  || opts->x_flag_mmx_native))
     opts->x_ix86_isa_flags
       |= OPTION_MASK_ISA_MMX & ~opts->x_ix86_isa_flags_explicit;
 
@@ -30807,13 +30812,13 @@  static const struct builtin_description bdesc_##kind[] =		    \
    we're lazy.  Add casts to make them fit.  */
 static const struct builtin_description bdesc_tm[] =
 {
-  { OPTION_MASK_ISA_MMX, 0, CODE_FOR_nothing, "__builtin__ITM_WM64", (enum ix86_builtins) BUILT_IN_TM_STORE_M64, UNKNOWN, VOID_FTYPE_PV2SI_V2SI },
-  { OPTION_MASK_ISA_MMX, 0, CODE_FOR_nothing, "__builtin__ITM_WaRM64", (enum ix86_builtins) BUILT_IN_TM_STORE_WAR_M64, UNKNOWN, VOID_FTYPE_PV2SI_V2SI },
-  { OPTION_MASK_ISA_MMX, 0, CODE_FOR_nothing, "__builtin__ITM_WaWM64", (enum ix86_builtins) BUILT_IN_TM_STORE_WAW_M64, UNKNOWN, VOID_FTYPE_PV2SI_V2SI },
-  { OPTION_MASK_ISA_MMX, 0, CODE_FOR_nothing, "__builtin__ITM_RM64", (enum ix86_builtins) BUILT_IN_TM_LOAD_M64, UNKNOWN, V2SI_FTYPE_PCV2SI },
-  { OPTION_MASK_ISA_MMX, 0, CODE_FOR_nothing, "__builtin__ITM_RaRM64", (enum ix86_builtins) BUILT_IN_TM_LOAD_RAR_M64, UNKNOWN, V2SI_FTYPE_PCV2SI },
-  { OPTION_MASK_ISA_MMX, 0, CODE_FOR_nothing, "__builtin__ITM_RaWM64", (enum ix86_builtins) BUILT_IN_TM_LOAD_RAW_M64, UNKNOWN, V2SI_FTYPE_PCV2SI },
-  { OPTION_MASK_ISA_MMX, 0, CODE_FOR_nothing, "__builtin__ITM_RfWM64", (enum ix86_builtins) BUILT_IN_TM_LOAD_RFW_M64, UNKNOWN, V2SI_FTYPE_PCV2SI },
+  { OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_nothing, "__builtin__ITM_WM64", (enum ix86_builtins) BUILT_IN_TM_STORE_M64, UNKNOWN, VOID_FTYPE_PV2SI_V2SI },
+  { OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_nothing, "__builtin__ITM_WaRM64", (enum ix86_builtins) BUILT_IN_TM_STORE_WAR_M64, UNKNOWN, VOID_FTYPE_PV2SI_V2SI },
+  { OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_nothing, "__builtin__ITM_WaWM64", (enum ix86_builtins) BUILT_IN_TM_STORE_WAW_M64, UNKNOWN, VOID_FTYPE_PV2SI_V2SI },
+  { OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_nothing, "__builtin__ITM_RM64", (enum ix86_builtins) BUILT_IN_TM_LOAD_M64, UNKNOWN, V2SI_FTYPE_PCV2SI },
+  { OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_nothing, "__builtin__ITM_RaRM64", (enum ix86_builtins) BUILT_IN_TM_LOAD_RAR_M64, UNKNOWN, V2SI_FTYPE_PCV2SI },
+  { OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_nothing, "__builtin__ITM_RaWM64", (enum ix86_builtins) BUILT_IN_TM_LOAD_RAW_M64, UNKNOWN, V2SI_FTYPE_PCV2SI },
+  { OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_nothing, "__builtin__ITM_RfWM64", (enum ix86_builtins) BUILT_IN_TM_LOAD_RFW_M64, UNKNOWN, V2SI_FTYPE_PCV2SI },
 
   { OPTION_MASK_ISA_SSE, 0, CODE_FOR_nothing, "__builtin__ITM_WM128", (enum ix86_builtins) BUILT_IN_TM_STORE_M128, UNKNOWN, VOID_FTYPE_PV4SF_V4SF },
   { OPTION_MASK_ISA_SSE, 0, CODE_FOR_nothing, "__builtin__ITM_WaRM128", (enum ix86_builtins) BUILT_IN_TM_STORE_WAR_M128, UNKNOWN, VOID_FTYPE_PV4SF_V4SF },
@@ -30831,7 +30836,7 @@  static const struct builtin_description bdesc_tm[] =
   { OPTION_MASK_ISA_AVX, 0, CODE_FOR_nothing, "__builtin__ITM_RaWM256", (enum ix86_builtins) BUILT_IN_TM_LOAD_RAW_M256, UNKNOWN, V8SF_FTYPE_PCV8SF },
   { OPTION_MASK_ISA_AVX, 0, CODE_FOR_nothing, "__builtin__ITM_RfWM256", (enum ix86_builtins) BUILT_IN_TM_LOAD_RFW_M256, UNKNOWN, V8SF_FTYPE_PCV8SF },
 
-  { OPTION_MASK_ISA_MMX, 0, CODE_FOR_nothing, "__builtin__ITM_LM64", (enum ix86_builtins) BUILT_IN_TM_LOG_M64, UNKNOWN, VOID_FTYPE_PCVOID },
+  { OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0, CODE_FOR_nothing, "__builtin__ITM_LM64", (enum ix86_builtins) BUILT_IN_TM_LOG_M64, UNKNOWN, VOID_FTYPE_PCVOID },
   { OPTION_MASK_ISA_SSE, 0, CODE_FOR_nothing, "__builtin__ITM_LM128", (enum ix86_builtins) BUILT_IN_TM_LOG_M128, UNKNOWN, VOID_FTYPE_PCVOID },
   { OPTION_MASK_ISA_AVX, 0, CODE_FOR_nothing, "__builtin__ITM_LM256", (enum ix86_builtins) BUILT_IN_TM_LOG_M256, UNKNOWN, VOID_FTYPE_PCVOID },
 };
@@ -31506,14 +31511,17 @@  ix86_init_mmx_sse_builtins (void)
 	       VOID_FTYPE_UNSIGNED, IX86_BUILTIN_XABORT);
 
   /* MMX access to the vec_init patterns.  */
-  def_builtin_const (OPTION_MASK_ISA_MMX, 0, "__builtin_ia32_vec_init_v2si",
+  def_builtin_const (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0,
+		     "__builtin_ia32_vec_init_v2si",
 		     V2SI_FTYPE_INT_INT, IX86_BUILTIN_VEC_INIT_V2SI);
 
-  def_builtin_const (OPTION_MASK_ISA_MMX, 0, "__builtin_ia32_vec_init_v4hi",
+  def_builtin_const (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0,
+		     "__builtin_ia32_vec_init_v4hi",
 		     V4HI_FTYPE_HI_HI_HI_HI,
 		     IX86_BUILTIN_VEC_INIT_V4HI);
 
-  def_builtin_const (OPTION_MASK_ISA_MMX, 0, "__builtin_ia32_vec_init_v8qi",
+  def_builtin_const (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0,
+		     "__builtin_ia32_vec_init_v8qi",
 		     V8QI_FTYPE_QI_QI_QI_QI_QI_QI_QI_QI,
 		     IX86_BUILTIN_VEC_INIT_V8QI);
 
@@ -31535,7 +31543,8 @@  ix86_init_mmx_sse_builtins (void)
 		     "__builtin_ia32_vec_ext_v4hi",
 		     HI_FTYPE_V4HI_INT, IX86_BUILTIN_VEC_EXT_V4HI);
 
-  def_builtin_const (OPTION_MASK_ISA_MMX, 0, "__builtin_ia32_vec_ext_v2si",
+  def_builtin_const (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE2, 0,
+		     "__builtin_ia32_vec_ext_v2si",
 		     SI_FTYPE_V2SI_INT, IX86_BUILTIN_VEC_EXT_V2SI);
 
   def_builtin_const (OPTION_MASK_ISA_SSE2, 0, "__builtin_ia32_vec_ext_v16qi",
@@ -36668,6 +36677,23 @@  ix86_expand_builtin (tree exp, rtx target, rtx subtarget,
        == (OPTION_MASK_ISA_FMA | OPTION_MASK_ISA_FMA4))
       && (isa & (OPTION_MASK_ISA_FMA | OPTION_MASK_ISA_FMA4)) != 0)
     isa |= (OPTION_MASK_ISA_FMA | OPTION_MASK_ISA_FMA4);
+  /* Use SSE/SSE2/SSSE3 to emulate MMX intrinsics in 64-bit mode when
+     MMX is disabled.  */
+  if (TARGET_MMX_WITH_SSE)
+    {
+      if (((bisa & (OPTION_MASK_ISA_SSE | OPTION_MASK_ISA_MMX))
+	   == (OPTION_MASK_ISA_SSE | OPTION_MASK_ISA_MMX))
+	  && (isa & (OPTION_MASK_ISA_SSE | OPTION_MASK_ISA_MMX)) != 0)
+	isa |= (OPTION_MASK_ISA_SSE | OPTION_MASK_ISA_MMX);
+      if (((bisa & (OPTION_MASK_ISA_SSE2 | OPTION_MASK_ISA_MMX))
+	   == (OPTION_MASK_ISA_SSE2 | OPTION_MASK_ISA_MMX))
+	  && (isa & (OPTION_MASK_ISA_SSE2 | OPTION_MASK_ISA_MMX)) != 0)
+	isa |= (OPTION_MASK_ISA_SSE2 | OPTION_MASK_ISA_MMX);
+      if (((bisa & (OPTION_MASK_ISA_SSSE3 | OPTION_MASK_ISA_MMX))
+	   == (OPTION_MASK_ISA_SSSE3 | OPTION_MASK_ISA_MMX))
+	  && (isa & (OPTION_MASK_ISA_SSSE3 | OPTION_MASK_ISA_MMX)) != 0)
+	isa |= (OPTION_MASK_ISA_SSSE3 | OPTION_MASK_ISA_MMX);
+    }
   if ((bisa & isa) != bisa || (bisa2 & isa2) != bisa2)
     {
       char *opts = ix86_target_string (bisa, bisa2, 0, 0, NULL, NULL,
diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt
index 9b93241f790..7b7c017716f 100644
--- a/gcc/config/i386/i386.opt
+++ b/gcc/config/i386/i386.opt
@@ -1101,3 +1101,7 @@  Enum(instrument_return) String(nop5) Value(instrument_return_nop5)
 mrecord-return
 Target Report Var(ix86_flag_record_return) Init(0)
 Generate a __return_loc section pointing to all return instrumentation code.
+
+mmmx-native
+Target Undocumented Var(flag_mmx_native) Init(0)
+Support -march=native.
diff --git a/gcc/config/i386/mmintrin.h b/gcc/config/i386/mmintrin.h
index 238b3df3121..7b613658111 100644
--- a/gcc/config/i386/mmintrin.h
+++ b/gcc/config/i386/mmintrin.h
@@ -30,7 +30,7 @@ 
 #if defined __x86_64__ && !defined __SSE__ || !defined __MMX__
 #pragma GCC push_options
 #ifdef __x86_64__
-#pragma GCC target("sse,mmx")
+#pragma GCC target("sse2")
 #else
 #pragma GCC target("mmx")
 #endif
@@ -315,7 +315,11 @@  _m_paddd (__m64 __m1, __m64 __m2)
 /* Add the 64-bit values in M1 to the 64-bit values in M2.  */
 #ifndef __SSE2__
 #pragma GCC push_options
+#ifdef __x86_64__
+#pragma GCC target("sse2")
+#else
 #pragma GCC target("sse2,mmx")
+#endif
 #define __DISABLE_SSE2__
 #endif /* __SSE2__ */
 
@@ -427,7 +431,11 @@  _m_psubd (__m64 __m1, __m64 __m2)
 /* Add the 64-bit values in M1 to the 64-bit values in M2.  */
 #ifndef __SSE2__
 #pragma GCC push_options
+#ifdef __x86_64__
+#pragma GCC target("sse2")
+#else
 #pragma GCC target("sse2,mmx")
+#endif
 #define __DISABLE_SSE2__
 #endif /* __SSE2__ */
 
diff --git a/gcc/testsuite/gcc.target/i386/pr82483-1.c b/gcc/testsuite/gcc.target/i386/pr82483-1.c
index 59a59dc8dfe..b2028d8dc5e 100644
--- a/gcc/testsuite/gcc.target/i386/pr82483-1.c
+++ b/gcc/testsuite/gcc.target/i386/pr82483-1.c
@@ -1,7 +1,7 @@ 
 /* PR target/82483 */
 /* { dg-do compile } */
 /* { dg-options "-mssse3 -mno-mmx -Wno-psabi" } */
-/* { dg-error "needs isa option" "" { target *-*-* } 0 } */
+/* { dg-error "needs isa option" "" { target ia32 } 0 } */
 
 #include <x86intrin.h>
 
diff --git a/gcc/testsuite/gcc.target/i386/pr82483-2.c b/gcc/testsuite/gcc.target/i386/pr82483-2.c
index 305ddbd6c64..c92de405cb3 100644
--- a/gcc/testsuite/gcc.target/i386/pr82483-2.c
+++ b/gcc/testsuite/gcc.target/i386/pr82483-2.c
@@ -1,7 +1,7 @@ 
 /* PR target/82483 */
 /* { dg-do compile } */
 /* { dg-options "-mssse3 -mno-mmx -Wno-psabi" } */
-/* { dg-error "needs isa option" "" { target *-*-* } 0 } */
+/* { dg-error "needs isa option" "" { target ia32 } 0 } */
 
 #include <x86intrin.h>
 
diff --git a/gcc/testsuite/gcc.target/i386/sse-mmx-1.c b/gcc/testsuite/gcc.target/i386/sse-mmx-1.c
new file mode 100644
index 00000000000..41209decda4
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/sse-mmx-1.c
@@ -0,0 +1,12 @@ 
+/* { dg-do compile } */
+/* { dg-options "-march=native" } */
+
+#ifdef __x86_64__
+# ifdef __MMX__
+#  error MMX is enabled by -march=native in 64-bit mode.
+# endif
+#else
+# ifndef __MMX__
+#  error MMX is not enabled by -march=native in 32-bit mode.
+# endif
+#endif
diff --git a/gcc/testsuite/objc.dg/gnu-encoding/struct-layout-1.h b/gcc/testsuite/objc.dg/gnu-encoding/struct-layout-1.h
index e165e203a32..4bf1d9c7863 100644
--- a/gcc/testsuite/objc.dg/gnu-encoding/struct-layout-1.h
+++ b/gcc/testsuite/objc.dg/gnu-encoding/struct-layout-1.h
@@ -43,7 +43,7 @@  typedef int u16sf;
 typedef int u2df;
 #endif
 #if (defined __i386__ || defined __x86_64__) && !defined SKIP_ATTRIBUTE
-# ifdef __MMX__
+# if defined __MMX__ || (defined __x86_64__ && defined __SSE2__)
 #  include <mmintrin.h>
 # else
 typedef int __m64;