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