| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=+avx,fma | FileCheck %s --check-prefixes=CHECK,FMA3 |
| ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=+avx,fma4 | FileCheck %s --check-prefixes=CHECK,FMA4 |
| |
| define float @test_fneg_fma_subx_y_negz_f32(float %w, float %x, float %y, float %z) { |
| ; FMA3-LABEL: test_fneg_fma_subx_y_negz_f32: |
| ; FMA3: # %bb.0: # %entry |
| ; FMA3-NEXT: vsubss %xmm0, %xmm1, %xmm0 |
| ; FMA3-NEXT: vfmadd213ss {{.*#+}} xmm0 = (xmm2 * xmm0) + xmm3 |
| ; FMA3-NEXT: retq |
| ; |
| ; FMA4-LABEL: test_fneg_fma_subx_y_negz_f32: |
| ; FMA4: # %bb.0: # %entry |
| ; FMA4-NEXT: vsubss %xmm0, %xmm1, %xmm0 |
| ; FMA4-NEXT: vfmaddss %xmm3, %xmm2, %xmm0, %xmm0 |
| ; FMA4-NEXT: retq |
| entry: |
| %subx = fsub nsz float %w, %x |
| %negz = fsub float -0.000000e+00, %z |
| %0 = tail call nsz float @llvm.fma.f32(float %subx, float %y, float %negz) |
| %1 = fsub float -0.000000e+00, %0 |
| ret float %1 |
| } |
| |
| define float @test_fneg_fma_x_suby_negz_f32(float %w, float %x, float %y, float %z) { |
| ; FMA3-LABEL: test_fneg_fma_x_suby_negz_f32: |
| ; FMA3: # %bb.0: # %entry |
| ; FMA3-NEXT: vsubss %xmm0, %xmm2, %xmm0 |
| ; FMA3-NEXT: vfmadd213ss {{.*#+}} xmm0 = (xmm1 * xmm0) + xmm3 |
| ; FMA3-NEXT: retq |
| ; |
| ; FMA4-LABEL: test_fneg_fma_x_suby_negz_f32: |
| ; FMA4: # %bb.0: # %entry |
| ; FMA4-NEXT: vsubss %xmm0, %xmm2, %xmm0 |
| ; FMA4-NEXT: vfmaddss %xmm3, %xmm0, %xmm1, %xmm0 |
| ; FMA4-NEXT: retq |
| entry: |
| %suby = fsub nsz float %w, %y |
| %negz = fsub float -0.000000e+00, %z |
| %0 = tail call nsz float @llvm.fma.f32(float %x, float %suby, float %negz) |
| %1 = fsub float -0.000000e+00, %0 |
| ret float %1 |
| } |
| |
| define float @test_fneg_fma_subx_suby_negz_f32(float %w, float %x, float %y, float %z) { |
| ; FMA3-LABEL: test_fneg_fma_subx_suby_negz_f32: |
| ; FMA3: # %bb.0: # %entry |
| ; FMA3-NEXT: vsubss %xmm0, %xmm1, %xmm1 |
| ; FMA3-NEXT: vsubss %xmm2, %xmm0, %xmm0 |
| ; FMA3-NEXT: vfmadd213ss {{.*#+}} xmm0 = (xmm1 * xmm0) + xmm3 |
| ; FMA3-NEXT: retq |
| ; |
| ; FMA4-LABEL: test_fneg_fma_subx_suby_negz_f32: |
| ; FMA4: # %bb.0: # %entry |
| ; FMA4-NEXT: vsubss %xmm0, %xmm1, %xmm1 |
| ; FMA4-NEXT: vsubss %xmm2, %xmm0, %xmm0 |
| ; FMA4-NEXT: vfmaddss %xmm3, %xmm0, %xmm1, %xmm0 |
| ; FMA4-NEXT: retq |
| entry: |
| %subx = fsub nsz float %w, %x |
| %suby = fsub nsz float %w, %y |
| %negz = fsub float -0.000000e+00, %z |
| %0 = tail call nsz float @llvm.fma.f32(float %subx, float %suby, float %negz) |
| %1 = fsub float -0.000000e+00, %0 |
| ret float %1 |
| } |
| |
| define float @test_fneg_fma_subx_negy_negz_f32(float %w, float %x, float %y, float %z) { |
| ; FMA3-LABEL: test_fneg_fma_subx_negy_negz_f32: |
| ; FMA3: # %bb.0: # %entry |
| ; FMA3-NEXT: vsubss %xmm1, %xmm0, %xmm0 |
| ; FMA3-NEXT: vfmadd213ss {{.*#+}} xmm0 = (xmm2 * xmm0) + xmm3 |
| ; FMA3-NEXT: retq |
| ; |
| ; FMA4-LABEL: test_fneg_fma_subx_negy_negz_f32: |
| ; FMA4: # %bb.0: # %entry |
| ; FMA4-NEXT: vsubss %xmm1, %xmm0, %xmm0 |
| ; FMA4-NEXT: vfmaddss %xmm3, %xmm2, %xmm0, %xmm0 |
| ; FMA4-NEXT: retq |
| entry: |
| %subx = fsub nsz float %w, %x |
| %negy = fsub float -0.000000e+00, %y |
| %negz = fsub float -0.000000e+00, %z |
| %0 = tail call nsz float @llvm.fma.f32(float %subx, float %negy, float %negz) |
| %1 = fsub float -0.000000e+00, %0 |
| ret float %1 |
| } |
| |
| declare float @llvm.fma.f32(float, float, float) |