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stage2: make zirBoolNot return undefined when argument is undefined

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This commit is contained in:
Robin Voetter
2021-10-16 19:55:31 +02:00
parent fd838584bf
commit d004ef2e5d
1 changed files with 7 additions and 6 deletions
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13
src/Sema.zig
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@@ -8271,12 +8271,13 @@ fn zirBoolNot(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Air
const bool_type = Type.initTag(.bool);
const operand = try sema.coerce(block, bool_type, uncasted_operand, operand_src);
if (try sema.resolveDefinedValue(block, operand_src, operand)) |val| {
if (val.toBool()) {
return Air.Inst.Ref.bool_false;
} else {
return Air.Inst.Ref.bool_true;
}
if (try sema.resolveMaybeUndefVal(block, operand_src, operand)) |val| {
return if (val.isUndef())
sema.addConstUndef(bool_type)
else if (val.toBool())
Air.Inst.Ref.bool_false
else
Air.Inst.Ref.bool_true;
}
try sema.requireRuntimeBlock(block, src);
return block.addTyOp(.not, bool_type, operand);