diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/fma_patterns_wide.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/fma_patterns_wide.ll | 83 |
1 files changed, 82 insertions, 1 deletions
diff --git a/llvm/test/CodeGen/X86/fma_patterns_wide.ll b/llvm/test/CodeGen/X86/fma_patterns_wide.ll index f412c174fe3..7b6509ad51c 100644 --- a/llvm/test/CodeGen/X86/fma_patterns_wide.ll +++ b/llvm/test/CodeGen/X86/fma_patterns_wide.ll @@ -2,7 +2,7 @@ ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx,+fma -fp-contract=fast | FileCheck %s --check-prefix=FMA ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx,+fma4,+fma -fp-contract=fast | FileCheck %s --check-prefix=FMA4 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx,+fma4 -fp-contract=fast | FileCheck %s --check-prefix=FMA4 -; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f -fp-contract=fast | FileCheck %s --check-prefix=AVX512 +; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512dq -fp-contract=fast | FileCheck %s --check-prefix=AVX512 ; ; Pattern: (fadd (fmul x, y), z) -> (fmadd x,y,z) @@ -737,4 +737,85 @@ define <16 x float> @test_v16f32_fma_fmul_x_c1_c2_y(<16 x float> %x, <16 x float ret <16 x float> %a } +; Pattern: (fneg (fmul x, y)) -> (fnmsub x, y, 0) + +define <16 x float> @test_v16f32_fneg_fmul(<16 x float> %x, <16 x float> %y) #0 { +; FMA-LABEL: test_v16f32_fneg_fmul: +; FMA: # BB#0: +; FMA-NEXT: vxorps %ymm4, %ymm4, %ymm4 +; FMA-NEXT: vfnmsub213ps %ymm4, %ymm2, %ymm0 +; FMA-NEXT: vfnmsub213ps %ymm4, %ymm3, %ymm1 +; FMA-NEXT: retq +; +; FMA4-LABEL: test_v16f32_fneg_fmul: +; FMA4: # BB#0: +; FMA4-NEXT: vxorps %ymm4, %ymm4, %ymm4 +; FMA4-NEXT: vfnmsubps %ymm4, %ymm2, %ymm0, %ymm0 +; FMA4-NEXT: vfnmsubps %ymm4, %ymm3, %ymm1, %ymm1 +; FMA4-NEXT: retq +; +; AVX512-LABEL: test_v16f32_fneg_fmul: +; AVX512: # BB#0: +; AVX512-NEXT: vpxord %zmm2, %zmm2, %zmm2 +; AVX512-NEXT: vfnmsub213ps %zmm2, %zmm1, %zmm0 +; AVX512-NEXT: retq + %m = fmul nsz <16 x float> %x, %y + %n = fsub <16 x float> <float -0.0, float -0.0, float -0.0, float -0.0, float -0.0, float -0.0, float -0.0, float -0.0, float -0.0, float -0.0, float -0.0, float -0.0, float -0.0, float -0.0, float -0.0, float -0.0>, %m + ret <16 x float> %n +} + +define <8 x double> @test_v8f64_fneg_fmul(<8 x double> %x, <8 x double> %y) #0 { +; FMA-LABEL: test_v8f64_fneg_fmul: +; FMA: # BB#0: +; FMA-NEXT: vxorpd %ymm4, %ymm4, %ymm4 +; FMA-NEXT: vfnmsub213pd %ymm4, %ymm2, %ymm0 +; FMA-NEXT: vfnmsub213pd %ymm4, %ymm3, %ymm1 +; FMA-NEXT: retq +; +; FMA4-LABEL: test_v8f64_fneg_fmul: +; FMA4: # BB#0: +; FMA4-NEXT: vxorpd %ymm4, %ymm4, %ymm4 +; FMA4-NEXT: vfnmsubpd %ymm4, %ymm2, %ymm0, %ymm0 +; FMA4-NEXT: vfnmsubpd %ymm4, %ymm3, %ymm1, %ymm1 +; FMA4-NEXT: retq +; +; AVX512-LABEL: test_v8f64_fneg_fmul: +; AVX512: # BB#0: +; AVX512-NEXT: vpxord %zmm2, %zmm2, %zmm2 +; AVX512-NEXT: vfnmsub213pd %zmm2, %zmm1, %zmm0 +; AVX512-NEXT: retq + %m = fmul nsz <8 x double> %x, %y + %n = fsub <8 x double> <double -0.0, double -0.0, double -0.0, double -0.0, double -0.0, double -0.0, double -0.0, double -0.0>, %m + ret <8 x double> %n +} + +define <8 x double> @test_v8f64_fneg_fmul_no_nsz(<8 x double> %x, <8 x double> %y) #0 { +; FMA-LABEL: test_v8f64_fneg_fmul_no_nsz: +; FMA: # BB#0: +; FMA-NEXT: vmulpd %ymm3, %ymm1, %ymm1 +; FMA-NEXT: vmulpd %ymm2, %ymm0, %ymm0 +; FMA-NEXT: vmovapd {{.*#+}} ymm2 = [9223372036854775808,9223372036854775808,9223372036854775808,9223372036854775808] +; FMA-NEXT: vxorpd %ymm2, %ymm0, %ymm0 +; FMA-NEXT: vxorpd %ymm2, %ymm1, %ymm1 +; FMA-NEXT: retq +; +; FMA4-LABEL: test_v8f64_fneg_fmul_no_nsz: +; FMA4: # BB#0: +; FMA4-NEXT: vmulpd %ymm3, %ymm1, %ymm1 +; FMA4-NEXT: vmulpd %ymm2, %ymm0, %ymm0 +; FMA4-NEXT: vmovapd {{.*#+}} ymm2 = [9223372036854775808,9223372036854775808,9223372036854775808,9223372036854775808] +; FMA4-NEXT: vxorpd %ymm2, %ymm0, %ymm0 +; FMA4-NEXT: vxorpd %ymm2, %ymm1, %ymm1 +; FMA4-NEXT: retq +; +; AVX512-LABEL: test_v8f64_fneg_fmul_no_nsz: +; AVX512: # BB#0: +; AVX512-NEXT: vmulpd %zmm1, %zmm0, %zmm0 +; AVX512-NEXT: vxorpd {{.*}}(%rip), %zmm0, %zmm0 +; AVX512-NEXT: retq + %m = fmul <8 x double> %x, %y + %n = fsub <8 x double> <double -0.0, double -0.0, double -0.0, double -0.0, double -0.0, double -0.0, double -0.0, double -0.0>, %m + ret <8 x double> %n +} + attributes #0 = { "unsafe-fp-math"="true" } |
