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Refactoring and enhancement to FMA combine.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235344 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Olivier Sallenave
2015-04-20 20:29:40 +00:00
parent d485ac5538
commit d153d3d8cc
3 changed files with 556 additions and 202 deletions
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22
test/CodeGen/PowerPC/fma-ext.ll
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@@ -60,34 +60,34 @@ define double @test_FMSUB_EXT2(float %A, float %B, double %C) {
define double @test_FMSUB_EXT3(float %A, float %B, double %C) {
%D = fmul float %A, %B ; <float> [#uses=1]
%E = fsub float -0.000000e+00, %D ; <float> [#uses=1]
%E = fsub float -0.000000e+00, %D ; <float> [#uses=1]
%F = fpext float %E to double ; <double> [#uses=1]
%G = fsub double %F, %C ; <double> [#uses=1]
ret double %G
; CHECK-LABEL: test_FMSUB_EXT3:
; CHECK: fneg
; CHECK-NEXT: fmsub
; CHECK: fnmadd
; CHECK-NEXT: blr
; CHECK-VSX-LABEL: test_FMSUB_EXT3:
; CHECK-VSX: xsnegdp
; CHECK-VSX-NEXT: xsmsubmdp
; CHECK-VSX: xsnmaddmdp
; CHECK-VSX-NEXT: blr
}
define double @test_FMSUB_EXT4(float %A, float %B, double %C) {
%D = fmul float %A, %B ; <float> [#uses=1]
%E = fpext float %D to double ; <double> [#uses=1]
%F = fsub double -0.000000e+00, %E ; <double> [#uses=1]
%F = fsub double -0.000000e+00, %E ; <double> [#uses=1]
%G = fsub double %F, %C ; <double> [#uses=1]
ret double %G
; CHECK-LABEL: test_FMSUB_EXT4:
; CHECK: fneg
; CHECK-NEXT: fmsub
; CHECK: fnmadd
; CHECK-NEXT: blr
; CHECK-VSX-LABEL: test_FMSUB_EXT4:
; CHECK-VSX: xsnegdp
; CHECK-VSX-NEXT: xsmsubmdp
; CHECK-VSX: xsnmaddmdp
; CHECK-VSX-NEXT: blr
}
}