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feat(amd64): encode the GOROOT instruction families

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Assisted-by: GLM 5.3 Flash
This commit is contained in:
petrbalvin
2026-09-20 06:44:51 +02:00
parent 39d2e80145
commit fc2d92eabd
16 changed files with 1709 additions and 43 deletions
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asm/encodable.go
+32 -8
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@@ -18,7 +18,11 @@ func Encodable(mnemonic string) bool {
// Fixed-name instructions (no size suffix).
switch upper {
case "RET", "NOP", "CALL", "JMP":
case "RET", "NOP", "CALL", "JMP",
"POPFQ", "PUSHFQ", "INT", "LDMXCSR", "STMXCSR", "CMPSD", "SHA256RNDS2":
return true
}
if _, ok := noOperandTable[upper]; ok {
return true
}
if _, ok := condCode(upper); ok {
@@ -31,7 +35,7 @@ func Encodable(mnemonic string) bool {
return false
}
if isVex(base) || isEvex(base) || isKOp(base) || isGather(base) || isScatter(base) ||
base == "KMOVW" || base == "KMOVQ" {
base == "KMOVW" || base == "KMOVQ" || base == "KMOVB" || base == "KMOVD" {
return true
}
@@ -53,13 +57,28 @@ func Encodable(mnemonic string) bool {
}
}
// Legacy SSE shuffles and packed binaries dispatch on the full name.
// Legacy SSE shuffles and packed binaries dispatch on the full name; so
// do the imm8-controlled instructions, the lane extracts and inserts and
// the packed integer shifts (their trailing width letters belong to the
// mnemonic).
if _, ok := sseShufTable[upper]; ok {
return true
}
if _, ok := sseBinTable[upper]; ok {
return true
}
if _, ok := sseImm3Table[upper]; ok {
return true
}
if _, ok := sseExtractTable[upper]; ok {
return true
}
if _, ok := sseInsertTable[upper]; ok {
return true
}
if _, ok := sseShiftImm[upper]; ok {
return true
}
// The size-suffix split: retry the tables and the scalar switch on the
// base.
@@ -74,12 +93,15 @@ func Encodable(mnemonic string) bool {
}
}
switch base2 {
case "MOV",
"ADD", "SUB", "AND", "OR", "XOR", "CMP",
case "MOV", "MOVD",
"ADD", "SUB", "AND", "OR", "XOR", "CMP", "ADC", "SBB",
"TEST",
"LEA",
"INC", "DEC", "NEG", "NOT",
"SHL", "SHR", "SAR",
"INC", "DEC", "NEG", "NOT", "MUL", "DIV", "IDIV",
"SHL", "SHR", "SAR", "SAL", "ROL", "ROR", "RCL", "RCR",
"BT", "BTS", "BTR", "BTC",
"XCHG", "CMPXCHG", "XADD", "CRC32", "ADCX", "ADOX",
"MOVS", "STOS",
"IMUL", "IMUL3",
"PUSH", "POP",
"BSF", "BSR", "LZCNT", "TZCNT", "POPCNT",
@@ -88,7 +110,9 @@ func Encodable(mnemonic string) bool {
"MOVBLZX", "MOVBQZX", "MOVWLZX", "MOVWQZX", "MOVWLSX", "MOVLQSX",
"MOVBWZX", "MOVBWSX", "MOVBLSX", "MOVBQSX", "MOVWQSX", "MOVLQZX",
"CVTSL2SD", "CVTSQ2SD",
"MOVOU", "MOVO", "MOVUPS", "MOVAPS", "MOVUPD", "MOVAPD", "MOVSD", "MOVSS":
"CVTSD2S", "CVTTSD2S", "CVTSS2S", "CVTTSS2S",
"FMOVD",
"MOVOU", "MOVO", "MOVOA", "MOVUPS", "MOVAPS", "MOVUPD", "MOVAPD", "MOVSD", "MOVSS":
return true
}
// Full-name dispatches the size split would eat (a trailing width