derek.holloway
7502bf64a4
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39 lines
1.6 KiB
LLVM
39 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=x86_64-linux-gnu < %s | FileCheck %s
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; Ensure vectorized FPOWs are not widened/unrolled such that they get lowered
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; into libcalls on undef elements.
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define float @test_fpow_v2f32_multiuse(<2 x float> %a0, <2 x float> %a1, ptr%p3) nounwind {
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; CHECK-LABEL: test_fpow_v2f32_multiuse:
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; CHECK: # %bb.0:
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; CHECK-NEXT: pushq %rbx
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; CHECK-NEXT: subq $48, %rsp
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; CHECK-NEXT: movq %rdi, %rbx
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; CHECK-NEXT: movaps %xmm1, {{[-0-9]+}}(%r{{[sb]}}p) # 16-byte Spill
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; CHECK-NEXT: movaps %xmm0, (%rsp) # 16-byte Spill
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; CHECK-NEXT: callq powf@PLT
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; CHECK-NEXT: movaps %xmm0, {{[-0-9]+}}(%r{{[sb]}}p) # 16-byte Spill
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; CHECK-NEXT: movaps (%rsp), %xmm0 # 16-byte Reload
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; CHECK-NEXT: shufps {{.*#+}} xmm0 = xmm0[1,1,1,1]
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; CHECK-NEXT: movaps {{[-0-9]+}}(%r{{[sb]}}p), %xmm1 # 16-byte Reload
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; CHECK-NEXT: shufps {{.*#+}} xmm1 = xmm1[1,1,1,1]
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; CHECK-NEXT: callq powf@PLT
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; CHECK-NEXT: movaps {{[-0-9]+}}(%r{{[sb]}}p), %xmm2 # 16-byte Reload
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; CHECK-NEXT: movaps %xmm2, %xmm1
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; CHECK-NEXT: unpcklps {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
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; CHECK-NEXT: addss %xmm2, %xmm0
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; CHECK-NEXT: movlps %xmm1, (%rbx)
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; CHECK-NEXT: addq $48, %rsp
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; CHECK-NEXT: popq %rbx
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; CHECK-NEXT: retq
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%fp = call <2 x float> @llvm.pow.v2f32(<2 x float> %a0, <2 x float> %a1)
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%fp0 = extractelement <2 x float> %fp, i32 0
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%fp1 = extractelement <2 x float> %fp, i32 1
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%res = fadd float %fp0, %fp1
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store <2 x float> %fp, ptr%p3
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ret float %res
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}
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declare <2 x float> @llvm.pow.v2f32(<2 x float>, <2 x float>)
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