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x86: avoid SSE check for LDMXCSR/STMXCSR

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Neither touches any XMM register, so the check is pointless. It is imo
even questionable whether in SSE2AVX mode the two should be converted to
their AVX counterparts.
This commit is contained in:
Jan Beulich
2018-03-08 08:35:48 +01:00
committed by Jan Beulich
parent 6e3e5c9e41
commit f2f6a710f4
3 changed files with 9 additions and 4 deletions
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5
opcodes/ChangeLog
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@ -1,3 +1,8 @@
2018-03-08 Jan Beulich <jbeulich@suse.com>
* i386-opc.tbl (ldmxcsr, stmxcsr): Add NoAVX.
* i386-tlb.h: Re-generate.
2018-03-08 Jan Beulich <jbeulich@suse.com> 2018-03-08 Jan Beulich <jbeulich@suse.com>
* i386-gen.c (opcode_modifiers): Delete FloatD. * i386-gen.c (opcode_modifiers): Delete FloatD.

4
opcodes/i386-opc.tbl
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@ -1215,7 +1215,7 @@ divps, 2, 0xf5e, None, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sS
divss, 2, 0xf35e, None, 1, CpuAVX, Modrm|Vex=3|VexOpcode=0|VexVVVV=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Dword|Unspecified|BaseIndex|RegXMM, RegXMM } divss, 2, 0xf35e, None, 1, CpuAVX, Modrm|Vex=3|VexOpcode=0|VexVVVV=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Dword|Unspecified|BaseIndex|RegXMM, RegXMM }
divss, 2, 0xf30f5e, None, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Dword|Unspecified|BaseIndex|RegXMM, RegXMM } divss, 2, 0xf30f5e, None, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Dword|Unspecified|BaseIndex|RegXMM, RegXMM }
ldmxcsr, 1, 0xae, 0x2, 1, CpuAVX, Modrm|Vex=3|VexOpcode=0|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Dword|Unspecified|BaseIndex } ldmxcsr, 1, 0xae, 0x2, 1, CpuAVX, Modrm|Vex=3|VexOpcode=0|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Dword|Unspecified|BaseIndex }
ldmxcsr, 1, 0xfae, 0x2, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Dword|Unspecified|BaseIndex } ldmxcsr, 1, 0xfae, 0x2, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|NoAVX, { Dword|Unspecified|BaseIndex }
maskmovq, 2, 0xff7, None, 2, CpuSSE|Cpu3dnowA, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|NoAVX, { RegMMX, RegMMX } maskmovq, 2, 0xff7, None, 2, CpuSSE|Cpu3dnowA, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|NoAVX, { RegMMX, RegMMX }
maxps, 2, 0x5f, None, 1, CpuAVX, Modrm|Vex|VexOpcode=0|VexVVVV=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Xmmword|Unspecified|BaseIndex|RegXMM, RegXMM } maxps, 2, 0x5f, None, 1, CpuAVX, Modrm|Vex|VexOpcode=0|VexVVVV=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Xmmword|Unspecified|BaseIndex|RegXMM, RegXMM }
maxps, 2, 0xf5f, None, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Xmmword|Unspecified|BaseIndex|RegXMM, RegXMM } maxps, 2, 0xf5f, None, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Xmmword|Unspecified|BaseIndex|RegXMM, RegXMM }
@ -1325,7 +1325,7 @@ sqrtps, 2, 0xf51, None, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_s
sqrtss, 2, 0xf351, None, 1, CpuAVX, Modrm|Vex=3|VexOpcode=0|VexVVVV=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Dword|Unspecified|BaseIndex|RegXMM, RegXMM } sqrtss, 2, 0xf351, None, 1, CpuAVX, Modrm|Vex=3|VexOpcode=0|VexVVVV=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Dword|Unspecified|BaseIndex|RegXMM, RegXMM }
sqrtss, 2, 0xf30f51, None, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Dword|Unspecified|BaseIndex|RegXMM, RegXMM } sqrtss, 2, 0xf30f51, None, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Dword|Unspecified|BaseIndex|RegXMM, RegXMM }
stmxcsr, 1, 0xae, 0x3, 1, CpuAVX, Modrm|Vex=3|VexOpcode=0|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Dword|Unspecified|BaseIndex } stmxcsr, 1, 0xae, 0x3, 1, CpuAVX, Modrm|Vex=3|VexOpcode=0|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Dword|Unspecified|BaseIndex }
stmxcsr, 1, 0xfae, 0x3, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Dword|Unspecified|BaseIndex } stmxcsr, 1, 0xfae, 0x3, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|NoAVX, { Dword|Unspecified|BaseIndex }
subps, 2, 0x5c, None, 1, CpuAVX, Modrm|Vex|VexOpcode=0|VexVVVV=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Xmmword|Unspecified|BaseIndex|RegXMM, RegXMM } subps, 2, 0x5c, None, 1, CpuAVX, Modrm|Vex|VexOpcode=0|VexVVVV=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Xmmword|Unspecified|BaseIndex|RegXMM, RegXMM }
subps, 2, 0xf5c, None, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Xmmword|Unspecified|BaseIndex|RegXMM, RegXMM } subps, 2, 0xf5c, None, 2, CpuSSE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Xmmword|Unspecified|BaseIndex|RegXMM, RegXMM }
subss, 2, 0xf35c, None, 1, CpuAVX, Modrm|Vex=3|VexOpcode=0|VexVVVV=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Dword|Unspecified|BaseIndex|RegXMM, RegXMM } subss, 2, 0xf35c, None, 1, CpuAVX, Modrm|Vex=3|VexOpcode=0|VexVVVV=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Dword|Unspecified|BaseIndex|RegXMM, RegXMM }

4
opcodes/i386-tbl.h
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@ -15099,7 +15099,7 @@ const insn_template i386_optab[] =
0, 0, 0, 0, 0, 0 } }, 0, 0, 0, 0, 0, 0 } },
{ 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1,
1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0 }, 0, 0, 0, 0, 0 },
{ { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1,
0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0,
@ -16996,7 +16996,7 @@ const insn_template i386_optab[] =
0, 0, 0, 0, 0, 0 } }, 0, 0, 0, 0, 0, 0 } },
{ 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1,
1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0 }, 0, 0, 0, 0, 0 },
{ { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1,
0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0,