[llvm] [AArch64] Add @llvm.experimental.vector.match (PR #101974)
Ricardo Jesus via llvm-commits
llvm-commits at lists.llvm.org
Tue Aug 27 08:55:29 PDT 2024
================
@@ -1892,6 +1892,16 @@ def int_experimental_vector_histogram_add : DefaultAttrsIntrinsic<[],
LLVMScalarOrSameVectorWidth<0, llvm_i1_ty>], // Mask
[ IntrArgMemOnly ]>;
+// Experimental match
+def int_experimental_vector_match : DefaultAttrsIntrinsic<
+ [ LLVMScalarOrSameVectorWidth<0, llvm_i1_ty> ],
+ [ llvm_anyvector_ty,
+ LLVMMatchType<0>,
+ LLVMScalarOrSameVectorWidth<0, llvm_i1_ty>, // Mask
+ llvm_i32_ty ], // Segment size
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rj-jesus wrote:
>It's hard to know how we'd generate code for a symbolic value.
Exactly, that was precisely my logic. Unless the hardware supports it, generating code for a symbolic segsize sounds like a hairy problem. I thought we could make it an immediate for now, and later lift the restriction if needed. What do you think?
https://github.com/llvm/llvm-project/pull/101974
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