llvm-project/llvm/test/CodeGen/X86/fma-fneg-combine.ll

140 lines
7.8 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=+avx512bw -mattr=+avx512vl -mattr=+avx512dq | FileCheck %s --check-prefix=CHECK --check-prefix=SKX
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=+avx512f -mattr=+fma | FileCheck %s --check-prefix=CHECK --check-prefix=KNL
; This test checks combinations of FNEG and FMA intrinsics on AVX-512 target
; PR28892
define <16 x float> @test1(<16 x float> %a, <16 x float> %b, <16 x float> %c) {
; CHECK-LABEL: test1:
; CHECK: # BB#0: # %entry
; CHECK-NEXT: vfmsub213ps %zmm2, %zmm1, %zmm0
; CHECK-NEXT: retq
entry:
%sub.i = fsub <16 x float> <float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %c
%0 = tail call <16 x float> @llvm.x86.avx512.mask.vfmadd.ps.512(<16 x float> %a, <16 x float> %b, <16 x float> %sub.i, i16 -1, i32 4) #2
ret <16 x float> %0
}
declare <16 x float> @llvm.x86.avx512.mask.vfmadd.ps.512(<16 x float>, <16 x float>, <16 x float>, i16, i32)
declare <16 x float> @llvm.x86.avx512.mask.vfnmadd.ps.512(<16 x float>, <16 x float>, <16 x float>, i16, i32)
declare <16 x float> @llvm.x86.avx512.mask.vfnmsub.ps.512(<16 x float>, <16 x float>, <16 x float>, i16, i32)
define <16 x float> @test2(<16 x float> %a, <16 x float> %b, <16 x float> %c) {
; CHECK-LABEL: test2:
; CHECK: # BB#0: # %entry
; CHECK-NEXT: vfnmsub213ps %zmm2, %zmm1, %zmm0
; CHECK-NEXT: retq
entry:
%0 = tail call <16 x float> @llvm.x86.avx512.mask.vfmadd.ps.512(<16 x float> %a, <16 x float> %b, <16 x float> %c, i16 -1, i32 4) #2
%sub.i = fsub <16 x float> <float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %0
ret <16 x float> %sub.i
}
define <16 x float> @test3(<16 x float> %a, <16 x float> %b, <16 x float> %c) {
; CHECK-LABEL: test3:
; CHECK: # BB#0: # %entry
; CHECK-NEXT: vfmsub213ps %zmm2, %zmm1, %zmm0
; CHECK-NEXT: retq
entry:
%0 = tail call <16 x float> @llvm.x86.avx512.mask.vfnmadd.ps.512(<16 x float> %a, <16 x float> %b, <16 x float> %c, i16 -1, i32 4) #2
%sub.i = fsub <16 x float> <float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %0
ret <16 x float> %sub.i
}
define <16 x float> @test4(<16 x float> %a, <16 x float> %b, <16 x float> %c) {
; CHECK-LABEL: test4:
; CHECK: # BB#0: # %entry
; CHECK-NEXT: vfmadd213ps %zmm2, %zmm1, %zmm0
; CHECK-NEXT: retq
entry:
%0 = tail call <16 x float> @llvm.x86.avx512.mask.vfnmsub.ps.512(<16 x float> %a, <16 x float> %b, <16 x float> %c, i16 -1, i32 4) #2
%sub.i = fsub <16 x float> <float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %0
ret <16 x float> %sub.i
}
define <16 x float> @test5(<16 x float> %a, <16 x float> %b, <16 x float> %c) {
; CHECK-LABEL: test5:
; CHECK: # BB#0: # %entry
; CHECK-NEXT: vfmsub213ps {ru-sae}, %zmm2, %zmm1, %zmm0
; CHECK-NEXT: retq
entry:
%sub.i = fsub <16 x float> <float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %c
%0 = tail call <16 x float> @llvm.x86.avx512.mask.vfmadd.ps.512(<16 x float> %a, <16 x float> %b, <16 x float> %sub.i, i16 -1, i32 2) #2
ret <16 x float> %0
}
define <16 x float> @test6(<16 x float> %a, <16 x float> %b, <16 x float> %c) {
; CHECK-LABEL: test6:
; CHECK: # BB#0: # %entry
; CHECK-NEXT: vfmadd213ps {ru-sae}, %zmm2, %zmm1, %zmm0
; CHECK-NEXT: retq
entry:
%0 = tail call <16 x float> @llvm.x86.avx512.mask.vfnmsub.ps.512(<16 x float> %a, <16 x float> %b, <16 x float> %c, i16 -1, i32 2) #2
%sub.i = fsub <16 x float> <float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %0
ret <16 x float> %sub.i
}
define <8 x float> @test7(<8 x float> %a, <8 x float> %b, <8 x float> %c) {
; CHECK-LABEL: test7:
; CHECK: # BB#0: # %entry
; CHECK-NEXT: vfnmadd213ps %ymm2, %ymm1, %ymm0
; CHECK-NEXT: retq
entry:
%0 = tail call <8 x float> @llvm.x86.fma.vfmsub.ps.256(<8 x float> %a, <8 x float> %b, <8 x float> %c) #2
%sub.i = fsub <8 x float> <float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %0
ret <8 x float> %sub.i
}
define <8 x float> @test8(<8 x float> %a, <8 x float> %b, <8 x float> %c) {
; SKX-LABEL: test8:
; SKX: # BB#0: # %entry
; SKX-NEXT: vxorps {{.*}}(%rip){1to8}, %ymm2, %ymm2
; SKX-NEXT: vfmsub213ps %ymm2, %ymm1, %ymm0
; SKX-NEXT: retq
;
; KNL-LABEL: test8:
; KNL: # BB#0: # %entry
; KNL-NEXT: vbroadcastss {{.*}}(%rip), %ymm3
; KNL-NEXT: vxorps %ymm3, %ymm2, %ymm2
; KNL-NEXT: vfmsub213ps %ymm2, %ymm1, %ymm0
; KNL-NEXT: retq
entry:
%sub.c = fsub <8 x float> <float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %c
%0 = tail call <8 x float> @llvm.x86.fma.vfmsub.ps.256(<8 x float> %a, <8 x float> %b, <8 x float> %sub.c) #2
ret <8 x float> %0
}
declare <8 x float> @llvm.x86.fma.vfmsub.ps.256(<8 x float>, <8 x float>, <8 x float>)
define <8 x double> @test9(<8 x double> %a, <8 x double> %b, <8 x double> %c) {
; CHECK-LABEL: test9:
; CHECK: # BB#0: # %entry
; CHECK-NEXT: vfnmsub213pd %zmm2, %zmm1, %zmm0
; CHECK-NEXT: retq
entry:
%0 = tail call <8 x double> @llvm.x86.avx512.mask.vfmadd.pd.512(<8 x double> %a, <8 x double> %b, <8 x double> %c, i8 -1, i32 4) #2
%sub.i = fsub <8 x double> <double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00>, %0
ret <8 x double> %sub.i
}
declare <8 x double> @llvm.x86.avx512.mask.vfmadd.pd.512(<8 x double> %a, <8 x double> %b, <8 x double> %c, i8, i32)
define <2 x double> @test10(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
; CHECK-LABEL: test10:
; CHECK: # BB#0: # %entry
; CHECK-NEXT: vfnmsub213sd %xmm2, %xmm0, %xmm1
; CHECK-NEXT: vmovaps %xmm1, %xmm0
; CHECK-NEXT: retq
entry:
%0 = tail call <2 x double> @llvm.x86.avx512.mask.vfmadd.sd(<2 x double> %a, <2 x double> %b, <2 x double> %c, i8 -1, i32 4) #2
%sub.i = fsub <2 x double> <double -0.000000e+00, double -0.000000e+00>, %0
ret <2 x double> %sub.i
}
declare <2 x double> @llvm.x86.avx512.mask.vfmadd.sd(<2 x double> %a, <2 x double> %b, <2 x double> %c, i8, i32)