34 lines
1.4 KiB
LLVM
34 lines
1.4 KiB
LLVM
; RUN: llc -mtriple=i686-unknown-unknown -mattr=+sse4.1 < %s | FileCheck %s -check-prefix=X32
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; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 < %s | FileCheck %s -check-prefix=X64
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; Test for case where insertps was folding the load of the insertion element, but a later optimization
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; was then manipulating the load.
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define <4 x float> @insertps_unfold(<4 x float>* %v0, <4 x float>* %v1) {
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; X32-LABEL: insertps_unfold:
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; X32: # BB#0:
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; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X32-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
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; X32-NEXT: movaps (%eax), %xmm0
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; X32-NEXT: insertps {{.*#+}} xmm0 = xmm0[0,1,2],mem[0]
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; X32-NEXT: addps %xmm1, %xmm0
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; X32-NEXT: retl
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;
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; X64-LABEL: insertps_unfold:
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; X64: # BB#0:
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; X64-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
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; X64-NEXT: movaps (%rdi), %xmm0
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; X64-NEXT: insertps {{.*#+}} xmm0 = xmm0[0,1,2],mem[0]
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; X64-NEXT: addps %xmm1, %xmm0
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; X64-NEXT: retq
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%a = getelementptr inbounds <4 x float>, <4 x float>* %v1, i64 0, i64 1
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%b = load float, float* %a, align 4
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%c = insertelement <4 x float> undef, float %b, i32 0
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%d = load <4 x float>, <4 x float>* %v1, align 16
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%e = load <4 x float>, <4 x float>* %v0, align 16
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%f = shufflevector <4 x float> %e, <4 x float> %d, <4 x i32> <i32 0, i32 1, i32 2, i32 5>
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%g = fadd <4 x float> %c, %f
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ret <4 x float> %g
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}
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