================
@@ -758,6 +758,14 @@ class TypeInfoGen<list<LLVMType> RetTypes, list<LLVMType>
ParamTypes> {
// * ParamTypes is a list containing the parameter types expected for the
// intrinsic.
// * Properties can be set to describe the behavior of the intrinsic.
+// * TargetFeatures is a target feature expression required by the intrinsic.
+// The empty string means no target features are required. The expression
+// uses feature names from the target's subtarget feature table. Comma means
+// AND, | means OR, and parentheses group expressions. The special value
+// "$custom" (Intrinsic::CustomTargetFeatures) indicates that support is
+// decided by a target hook
(TargetSubtargetInfo::isIntrinsicSupportedByTarget)
+// rather than by evaluating a feature expression; use it when support
depends
+// on more than the subtarget features, e.g. a particular overload/mangling.
----------------
ssahasra wrote:
See my comment about `isIntrinsicSupportedByTarget()` below. I am just
wondering do we really need `$custom` ... why can't we just always check the
target!
https://github.com/llvm/llvm-project/pull/201470
_______________________________________________
cfe-commits mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
