RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-24 11:42:57 +01:00
Code Issues Projects Releases Wiki Activity

[X86][FMA] Add FMA 'negated expression' combine tests for D63141

Browse Source 
llvm-svn: 369384
This commit is contained in:
Simon Pilgrim 2019-08-20 13:25:55 +00:00
parent 94efa010f3
commit 067b5fe034
1 changed files with 89 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

89
test/CodeGen/X86/fma-fneg-combine-2.ll Normal file
View File

@ -0,0 +1,89 @@
; 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 %xmm1, %xmm0, %xmm0
; FMA3-NEXT: vfnmadd213ss {{.*#+}} xmm0 = -(xmm2 * xmm0) + xmm3
; FMA3-NEXT: retq
;
; FMA4-LABEL: test_fneg_fma_subx_y_negz_f32:
; FMA4: # %bb.0: # %entry
; FMA4-NEXT: vsubss %xmm1, %xmm0, %xmm0
; FMA4-NEXT: vfnmaddss %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 %xmm2, %xmm0, %xmm0
; FMA3-NEXT: vfnmadd213ss {{.*#+}} xmm0 = -(xmm1 * xmm0) + xmm3
; FMA3-NEXT: retq
;
; FMA4-LABEL: test_fneg_fma_x_suby_negz_f32:
; FMA4: # %bb.0: # %entry
; FMA4-NEXT: vsubss %xmm2, %xmm0, %xmm0
; FMA4-NEXT: vfnmaddss %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 %xmm1, %xmm0, %xmm1
; FMA3-NEXT: vsubss %xmm2, %xmm0, %xmm0
; FMA3-NEXT: vfnmadd213ss {{.*#+}} xmm0 = -(xmm1 * xmm0) + xmm3
; FMA3-NEXT: retq
;
; FMA4-LABEL: test_fneg_fma_subx_suby_negz_f32:
; FMA4: # %bb.0: # %entry
; FMA4-NEXT: vsubss %xmm1, %xmm0, %xmm1
; FMA4-NEXT: vsubss %xmm2, %xmm0, %xmm0
; FMA4-NEXT: vfnmaddss %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)