Author: Sanjay Patel Date: 2020-12-14T18:31:19-05:00 New Revision: 8593e197bc837286abeb4dee50726b2391a77de9
URL: https://github.com/llvm/llvm-project/commit/8593e197bc837286abeb4dee50726b2391a77de9 DIFF: https://github.com/llvm/llvm-project/commit/8593e197bc837286abeb4dee50726b2391a77de9.diff LOG: [VectorCombine] add alignment test for gep load; NFC Added: Modified: llvm/test/Transforms/VectorCombine/X86/load.ll Removed: ################################################################################ diff --git a/llvm/test/Transforms/VectorCombine/X86/load.ll b/llvm/test/Transforms/VectorCombine/X86/load.ll index 03902c48157f..d28d28761632 100644 --- a/llvm/test/Transforms/VectorCombine/X86/load.ll +++ b/llvm/test/Transforms/VectorCombine/X86/load.ll @@ -284,6 +284,21 @@ define <8 x i16> @gep01_load_i16_insert_v8i16_deref(<8 x i16>* align 16 derefere ret <8 x i16> %r } +; TODO: Verify that alignment of the new load is not over-specified. + +define <8 x i16> @gep01_load_i16_insert_v8i16_deref_minalign(<8 x i16>* align 2 dereferenceable(16) %p) { +; CHECK-LABEL: @gep01_load_i16_insert_v8i16_deref_minalign( +; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds <8 x i16>, <8 x i16>* [[P:%.*]], i64 0, i64 1 +; CHECK-NEXT: [[S:%.*]] = load i16, i16* [[GEP]], align 8 +; CHECK-NEXT: [[R:%.*]] = insertelement <8 x i16> undef, i16 [[S]], i64 0 +; CHECK-NEXT: ret <8 x i16> [[R]] +; + %gep = getelementptr inbounds <8 x i16>, <8 x i16>* %p, i64 0, i64 1 + %s = load i16, i16* %gep, align 8 + %r = insertelement <8 x i16> undef, i16 %s, i64 0 + ret <8 x i16> %r +} + ; If there are enough dereferenceable bytes, we can offset the vector load. define <8 x i16> @gep10_load_i16_insert_v8i16(<8 x i16>* align 16 dereferenceable(32) %p) { _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
