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15 lines
465 B
LLVM
15 lines
465 B
LLVM
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; RUN: llc < %s -march=x86-64 -mcpu=corei7 -debug
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; REQUIRES: asserts
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; Test that the dag combiner doesn't assert if we try to replace a sequence of two
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; v4f32 X86ISD::PSHUFD nodes with a single PSHUFD.
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define <4 x float> @test(<4 x float> %V) {
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%1 = shufflevector <4 x float> %V, <4 x float> undef, <4 x i32> <i32 3, i32 0, i32 2, i32 1>
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%2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 3, i32 0, i32 2, i32 1>
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ret <4 x float> %2
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}
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