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aarch64: implement isNull() for non-pointer optionals

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This commit is contained in:
Jakub Konka 2022-11-07 12:05:05 +01:00
parent 0de56d1722
commit 35bd5363ee
1 changed files with 6 additions and 1 deletions
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7
src/arch/aarch64/CodeGen.zig
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@ -4601,7 +4601,12 @@ fn isNull(self: *Self, operand_bind: ReadArg.Bind, operand_ty: Type) !MCValue {
const imm_bind: ReadArg.Bind = .{ .mcv = .{ .immediate = 0 } };
return self.cmp(operand_bind, imm_bind, Type.usize, .eq);
} else {
return self.fail("TODO implement non-pointer optionals", .{});
var buf: Type.Payload.ElemType = undefined;
const payload_ty = operand_ty.optionalChild(&buf);
const sentinel_ty = if (payload_ty.hasRuntimeBitsIgnoreComptime()) Type.bool else operand_ty;
const imm_bind: ReadArg.Bind = .{ .mcv = .{ .immediate = 0 } };
return self.cmp(operand_bind, imm_bind, sentinel_ty, .eq);
}
}