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feat(amd64): encode the mixed-width extend family and PMOVMSKB

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Assisted-by: GLM 5.3
This commit is contained in:
petrbalvin
2026-09-20 00:38:24 +02:00
parent d315a998ce
commit 187e4856d3
5 changed files with 105 additions and 14 deletions
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asm/encode.go
+7 -1
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@@ -101,6 +101,11 @@ func (e *enc) encode(mnem string, ops []Operand) error {
if m, ok := sseBinTable[base]; ok {
return e.encodeSSEBin(m, ops)
}
// PMOVMSKB ends in a width letter the size split would eat, so it
// dispatches on the full name like the packed binaries above.
if upper == "PMOVMSKB" {
return e.encodePmovmskb(upper, ops)
}
switch base {
case "MOV":
return e.encodeMov(ops, size)
@@ -126,7 +131,8 @@ func (e *enc) encode(mnem string, ops []Operand) error {
return e.encodeBswap(ops, size)
case "PREFETCHNTA", "PREFETCHT0", "PREFETCHT1", "PREFETCHT2":
return e.encodePrefetch(base, ops)
case "MOVBLZX", "MOVBQZX", "MOVWLZX", "MOVWQZX", "MOVWLSX", "MOVLQSX":
case "MOVBLZX", "MOVBQZX", "MOVWLZX", "MOVWQZX", "MOVWLSX", "MOVLQSX",
"MOVBWZX", "MOVBWSX", "MOVBLSX", "MOVBQSX", "MOVWQSX", "MOVLQZX":
return e.encodeMovExtend(base, ops)
case "CVTSL2SD", "CVTSQ2SD":
return e.encodeCvtsi2sd(base == "CVTSQ2SD", ops)