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Add Intel Sierra Forest instructions (#127)
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Signed-off-by: Feruzjon Muyassarov <feruzjon.muyassarov@intel.com>

Signed-off-by: Feruzjon Muyassarov <feruzjon.muyassarov@intel.com>
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fmuyassarov authored Dec 29, 2022
1 parent 8935696 commit 3c0ec06
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Showing 3 changed files with 189 additions and 173 deletions.
4 changes: 4 additions & 0 deletions README.md
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Expand Up @@ -297,8 +297,11 @@ Exit Code 1
| AVX512VNNI | AVX-512 Vector Neural Network Instructions |
| AVX512VP2INTERSECT | AVX-512 Intersect for D/Q |
| AVX512VPOPCNTDQ | AVX-512 Vector Population Count Doubleword and Quadword |
| AVXIFMA | AVX-IFMA instructions |
| AVXNECONVERT | AVX-NE-CONVERT instructions |
| AVXSLOW | Indicates the CPU performs 2 128 bit operations instead of one |
| AVXVNNI | AVX (VEX encoded) VNNI neural network instructions |
| AVXVNNIINT8 | AVX-VNNI-INT8 instructions |
| BMI1 | Bit Manipulation Instruction Set 1 |
| BMI2 | Bit Manipulation Instruction Set 2 |
| CETIBT | Intel CET Indirect Branch Tracking |
Expand All @@ -307,6 +310,7 @@ Exit Code 1
| CLMUL | Carry-less Multiplication |
| CLZERO | CLZERO instruction supported |
| CMOV | i686 CMOV |
| CMPCCXADD | CMPCCXADD instructions |
| CMPSB_SCADBS_SHORT | Fast short CMPSB and SCASB |
| CMPXCHG8 | CMPXCHG8 instruction |
| CPBOOST | Core Performance Boost |
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10 changes: 9 additions & 1 deletion cpuid.go
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Expand Up @@ -94,8 +94,11 @@ const (
AVX512VNNI // AVX-512 Vector Neural Network Instructions
AVX512VP2INTERSECT // AVX-512 Intersect for D/Q
AVX512VPOPCNTDQ // AVX-512 Vector Population Count Doubleword and Quadword
AVXIFMA // AVX-IFMA instructions
AVXNECONVERT // AVX-NE-CONVERT instructions
AVXSLOW // Indicates the CPU performs 2 128 bit operations instead of one
AVXVNNI // AVX (VEX encoded) VNNI neural network instructions
AVXVNNIINT8 // AVX-VNNI-INT8 instructions
BMI1 // Bit Manipulation Instruction Set 1
BMI2 // Bit Manipulation Instruction Set 2
CETIBT // Intel CET Indirect Branch Tracking
Expand All @@ -104,6 +107,7 @@ const (
CLMUL // Carry-less Multiplication
CLZERO // CLZERO instruction supported
CMOV // i686 CMOV
CMPCCXADD // CMPCCXADD instructions
CMPSB_SCADBS_SHORT // Fast short CMPSB and SCASB
CMPXCHG8 // CMPXCHG8 instruction
CPBOOST // Core Performance Boost
Expand Down Expand Up @@ -1178,15 +1182,19 @@ func support() flagSet {
fs.setIf(edx&(1<<31) != 0, SPEC_CTRL_SSBD)

// CPUID.(EAX=7, ECX=1).EDX
fs.setIf(edx&(1<<4) != 0, AVXVNNIINT8)
fs.setIf(edx&(1<<5) != 0, AVXNECONVERT)
fs.setIf(edx&(1<<14) != 0, PREFETCHI)

// CPUID.(EAX=7, ECX=1)
// CPUID.(EAX=7, ECX=1).EAX
eax1, _, _, _ := cpuidex(7, 1)
fs.setIf(fs.inSet(AVX) && eax1&(1<<4) != 0, AVXVNNI)
fs.setIf(eax1&(1<<7) != 0, CMPCCXADD)
fs.setIf(eax1&(1<<10) != 0, MOVSB_ZL)
fs.setIf(eax1&(1<<11) != 0, STOSB_SHORT)
fs.setIf(eax1&(1<<12) != 0, CMPSB_SCADBS_SHORT)
fs.setIf(eax1&(1<<22) != 0, HRESET)
fs.setIf(eax1&(1<<23) != 0, AVXIFMA)
fs.setIf(eax1&(1<<26) != 0, LAM)

// Only detect AVX-512 features if XGETBV is supported
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