[PATCH v3 1/6] x86: drop CpuVREX
Jan Beulich
JBeulich@suse.com
Mon Jul 30 08:43:00 GMT 2018
It is fully redundant with CpuAVX512F.
gas/
2018-07-30 Jan Beulich <jbeulich@suse.com>
* config/tc-i386.c (parse_real_register): Use cpuavx512f instead
of cpuvrex.
opcodes/
2018-07-30 Jan Beulich <jbeulich@suse.com>
* i386-gen.c (cpu_flag_init): Drop CpuVREX uses.
(cpu_flags): Drop CpuVREX.
* i386-opc.h (CpuVREX): Delete.
(union i386_cpu_flags): Remove cpuvrex.
* i386-init.h, i386-tbl.h: Re-generate.
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -10376,7 +10376,7 @@ parse_real_register (char *reg_string, c
mode, and require EVEX encoding. */
if (r->reg_flags & RegVRex)
{
- if (!cpu_arch_flags.bitfield.cpuvrex
+ if (!cpu_arch_flags.bitfield.cpuavx512f
|| flag_code != CODE_64BIT)
return (const reg_entry *) NULL;
--- a/opcodes/i386-gen.c
+++ b/opcodes/i386-gen.c
@@ -198,7 +198,7 @@ static initializer cpu_flag_init[] =
{ "CPU_AVX2_FLAGS",
"CPU_AVX_FLAGS|CpuAVX2" },
{ "CPU_AVX512F_FLAGS",
- "CPU_AVX2_FLAGS|CpuVREX|CpuAVX512F" },
+ "CPU_AVX2_FLAGS|CpuAVX512F" },
{ "CPU_AVX512CD_FLAGS",
"CPU_AVX512F_FLAGS|CpuAVX512CD" },
{ "CPU_AVX512ER_FLAGS",
@@ -316,7 +316,7 @@ static initializer cpu_flag_init[] =
{ "CPU_ANY_AVX2_FLAGS",
"CpuAVX2" },
{ "CPU_ANY_AVX512F_FLAGS",
- "CpuVREX|CpuAVX512CD|CpuAVX512ER|CpuAVX512PF|CpuAVX512DQ|CpuAVX512BW|CpuAVX512VL|CpuAVX512IFMA|CpuAVX512VBMI|CpuAVX512_4FMAPS|CpuAVX512_4VNNIW|CpuAVX512_VPOPCNTDQ|CpuAVX512_VBMI2|CpuAVX512_VNNI|CpuAVX512_BITALG|CpuAVX512F" },
+ "CpuAVX512F|CpuAVX512CD|CpuAVX512ER|CpuAVX512PF|CpuAVX512DQ|CpuAVX512BW|CpuAVX512VL|CpuAVX512IFMA|CpuAVX512VBMI|CpuAVX512_4FMAPS|CpuAVX512_4VNNIW|CpuAVX512_VPOPCNTDQ|CpuAVX512_VBMI2|CpuAVX512_VNNI|CpuAVX512_BITALG" },
{ "CPU_ANY_AVX512CD_FLAGS",
"CpuAVX512CD" },
{ "CPU_ANY_AVX512ER_FLAGS",
@@ -551,7 +551,6 @@ static bitfield cpu_flags[] =
BITFIELD (CpuPRFCHW),
BITFIELD (CpuSMAP),
BITFIELD (CpuSHA),
- BITFIELD (CpuVREX),
BITFIELD (CpuClflushOpt),
BITFIELD (CpuXSAVES),
BITFIELD (CpuXSAVEC),
--- a/opcodes/i386-opc.h
+++ b/opcodes/i386-opc.h
@@ -174,8 +174,6 @@ enum
CpuSMAP,
/* SHA instructions required. */
CpuSHA,
- /* VREX support required */
- CpuVREX,
/* CLFLUSHOPT instruction required */
CpuClflushOpt,
/* XSAVES/XRSTORS instruction required */
@@ -329,7 +327,6 @@ typedef union i386_cpu_flags
unsigned int cpuprfchw:1;
unsigned int cpusmap:1;
unsigned int cpusha:1;
- unsigned int cpuvrex:1;
unsigned int cpuclflushopt:1;
unsigned int cpuxsaves:1;
unsigned int cpuxsavec:1;
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