================
@@ -24,12 +24,12 @@ def undef128 : X86Builtin<"_Vector<2, double>()"> {
let Attributes = [Const, NoThrow, RequiredVectorWidth<128>];
}
-def undef256 : X86Builtin<"_Vector<4, double>()"> {
- let Attributes = [Const, NoThrow, RequiredVectorWidth<256>];
+def undef256 : X86Builtin<"_Vector<4, double>()" > {
+ let Attributes = [Const, Constexpr, NoThrow, RequiredVectorWidth<256>];
----------------
RKSimon wrote:
Currently the plan is not to allow the undef builtins to be used in constexpr,
if these are required for any of the pd2ps intrinsics you will have to tweak
the implementation.
https://github.com/llvm/llvm-project/pull/169980
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