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SetBlockEx: BeforeLast

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This commit is contained in:
xushiwei
2024-05-26 16:18:24 +08:00
parent 5cf6a30027
commit ddabfdca3d
9 changed files with 181 additions and 137 deletions
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10
ssa/interface.go
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@@ -88,7 +88,8 @@ func (b Builder) abiStructOf(t *types.Struct) Expr {
params := strucAbi.raw.Type.(*types.Signature).Params()
tSlice := prog.rawType(params.At(params.Len() - 1).Type().(*types.Slice))
fldSlice := b.SliceLit(tSlice, flds...)
return b.Call(pkgPath, strucAbi, fldSlice)
size := prog.IntVal(prog.SizeOf(typ), prog.Uintptr())
return b.Call(strucAbi, pkgPath, size, fldSlice)
}
// func StructField(name string, typ *abi.Type, off uintptr, tag string, exported, embedded bool) abi.StructField
@@ -296,21 +297,20 @@ func (b Builder) TypeAssert(x Expr, assertedTyp Type, commaOk bool) Expr {
eq := b.BinOp(token.EQL, tx, tabi)
if commaOk {
prog := b.Prog
t := prog.Tuple(assertedTyp, prog.Bool())
t := prog.Struct(assertedTyp, prog.Bool())
blks := b.Func.MakeBlocks(3)
b.If(eq, blks[0], blks[1])
b.SetBlockEx(blks[2], AtEnd, false)
phi := b.Phi(t)
phi.AddIncoming(b, blks[:2], func(i int) Expr {
phi.AddIncoming(b, blks[:2], func(i int, blk BasicBlock) Expr {
b.SetBlockEx(blk, AtEnd, false)
if i == 0 {
b.SetBlockEx(blks[0], AtEnd, false)
val := b.valFromData(assertedTyp, b.faceData(x.impl))
valTrue := aggregateValue(b.impl, t.ll, val.impl, prog.BoolVal(true).impl)
b.Jump(blks[2])
return Expr{valTrue, t}
}
b.SetBlockEx(blks[1], AtEnd, false)
zero := prog.Zero(assertedTyp)
valFalse := aggregateValue(b.impl, t.ll, zero.impl, prog.BoolVal(false).impl)
b.Jump(blks[2])