[PATCH] D105020: [SLP]Improve graph reordering.

[Alexey Bataev via Phabricator via llvm-commits]

ABataev added inline comments.


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Comment at: llvm/test/Transforms/SLPVectorizer/AArch64/PR38339.ll:6-16
+; CHECK-NEXT:    [[T2:%.*]] = extractelement <2 x i16> [[X:%.*]], i32 0
+; CHECK-NEXT:    [[T3:%.*]] = extractelement <2 x i16> [[X]], i32 1
 ; CHECK-NEXT:    [[PTR0:%.*]] = getelementptr inbounds [4 x i16], [4 x i16]* undef, i16 0, i16 0
 ; CHECK-NEXT:    [[PTR1:%.*]] = getelementptr inbounds [4 x i16], [4 x i16]* undef, i16 0, i16 1
 ; CHECK-NEXT:    [[PTR2:%.*]] = getelementptr inbounds [4 x i16], [4 x i16]* undef, i16 0, i16 2
 ; CHECK-NEXT:    [[PTR3:%.*]] = getelementptr inbounds [4 x i16], [4 x i16]* undef, i16 0, i16 3
+; CHECK-NEXT:    store i16 [[T2]], i16* [[A:%.*]], align 2
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Need to adjust the cost for 4xi16 shuffle in AArch64 target.


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Comment at: llvm/test/Transforms/SLPVectorizer/AArch64/PR38339.ll:40-50
+; CHECK-NEXT:    [[T2:%.*]] = extractelement <2 x i16> [[XX]], i32 0
+; CHECK-NEXT:    [[T3:%.*]] = extractelement <2 x i16> [[XX]], i32 1
 ; CHECK-NEXT:    [[PTR0:%.*]] = getelementptr inbounds [4 x i16], [4 x i16]* undef, i16 0, i16 0
 ; CHECK-NEXT:    [[PTR1:%.*]] = getelementptr inbounds [4 x i16], [4 x i16]* undef, i16 0, i16 1
 ; CHECK-NEXT:    [[PTR2:%.*]] = getelementptr inbounds [4 x i16], [4 x i16]* undef, i16 0, i16 2
 ; CHECK-NEXT:    [[PTR3:%.*]] = getelementptr inbounds [4 x i16], [4 x i16]* undef, i16 0, i16 3
+; CHECK-NEXT:    store i16 [[T2]], i16* [[A]], align 2
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Same here


Repository:
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https://reviews.llvm.org/D105020