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https://github.com/RPCS3/llvm-mirror.git
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ebbe5ba42e
Summary: The affected transforms all implicitly use associativity of addition, for which we usually require unsafe math to be enabled. The "Aggressive" flag is only meant to convey information about the performance of the fused ops relative to a fmul+fadd sequence. Fixes Bug 31626. Reviewers: spatel, hfinkel, mehdi_amini, arsenm, tstellarAMD Subscribers: jholewinski, nemanjai, wdng, llvm-commits Differential Revision: https://reviews.llvm.org/D28675 llvm-svn: 293635
286 lines
9.5 KiB
LLVM
286 lines
9.5 KiB
LLVM
; RUN: llc -verify-machineinstrs < %s -march=ppc32 -fp-contract=fast -mattr=-vsx -disable-ppc-vsx-fma-mutation=false | FileCheck -check-prefix=CHECK -check-prefix=CHECK-SAFE %s
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; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-unknown-linux-gnu -fp-contract=fast -mattr=+vsx -mcpu=pwr7 -disable-ppc-vsx-fma-mutation=false | FileCheck -check-prefix=CHECK-VSX -check-prefix=CHECK-VSX-SAFE %s
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; RUN: llc -verify-machineinstrs < %s -march=ppc32 -fp-contract=fast -enable-unsafe-fp-math -mattr=-vsx -disable-ppc-vsx-fma-mutation=false | FileCheck -check-prefix=CHECK -check-prefix=CHECK-UNSAFE %s
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; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-unknown-linux-gnu -fp-contract=fast -enable-unsafe-fp-math -mattr=+vsx -mcpu=pwr7 -disable-ppc-vsx-fma-mutation=false | FileCheck -check-prefix=CHECK-VSX -check-prefix=CHECK-UNSAFE-VSX %s
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define double @test_FMADD_ASSOC1(double %A, double %B, double %C,
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double %D, double %E) {
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%F = fmul double %A, %B ; <double> [#uses=1]
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%G = fmul double %C, %D ; <double> [#uses=1]
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%H = fadd double %F, %G ; <double> [#uses=1]
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%I = fadd double %H, %E ; <double> [#uses=1]
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ret double %I
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; CHECK-SAFE-LABEL: test_FMADD_ASSOC1:
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; CHECK-SAFE: fmul
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; CHECK-SAFE-NEXT: fmadd
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; CHECK-SAFE-NEXT: fadd
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; CHECK-SAFE-NEXT: blr
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; CHECK-UNSAFE-LABEL: test_FMADD_ASSOC1:
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; CHECK-UNSAFE: fmadd
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; CHECK-UNSAFE-NEXT: fmadd
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; CHECK-UNSAFE-NEXT: blr
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; CHECK-VSX-SAFE-LABEL: test_FMADD_ASSOC1:
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; CHECK-VSX-SAFE: xsmuldp
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; CHECK-VSX-SAFE-NEXT: xsmaddadp
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; CHECK-VSX-SAFE-NEXT: xsadddp
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; CHECK-VSX-SAFE-NEXT: blr
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; CHECK-VSX-UNSAFE-LABEL: test_FMADD_ASSOC1:
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; CHECK-VSX-UNSAFE: xsmaddmdp
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; CHECK-VSX-UNSAFE-NEXT: xsmaddadp
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; CHECK-VSX-UNSAFE-NEXT: fmr
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; CHECK-VSX-UNSAFE-NEXT: blr
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}
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define double @test_FMADD_ASSOC2(double %A, double %B, double %C,
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double %D, double %E) {
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%F = fmul double %A, %B ; <double> [#uses=1]
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%G = fmul double %C, %D ; <double> [#uses=1]
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%H = fadd double %F, %G ; <double> [#uses=1]
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%I = fadd double %E, %H ; <double> [#uses=1]
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ret double %I
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; CHECK-SAFE-LABEL: test_FMADD_ASSOC2:
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; CHECK-SAFE: fmul
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; CHECK-SAFE-NEXT: fmadd
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; CHECK-SAFE-NEXT: fadd
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; CHECK-SAFE-NEXT: blr
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; CHECK-UNSAFE-LABEL: test_FMADD_ASSOC2:
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; CHECK-UNSAFE: fmadd
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; CHECK-UNSAFE-NEXT: fmadd
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; CHECK-UNSAFE-NEXT: blr
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; CHECK-VSX-SAFE-LABEL: test_FMADD_ASSOC2:
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; CHECK-VSX-SAFE: xsmuldp
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; CHECK-VSX-SAFE-NEXT: xsmaddadp
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; CHECK-VSX-SAFE-NEXT: xsadddp
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; CHECK-VSX-SAFE-NEXT: blr
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; CHECK-VSX-UNSAFE-LABEL: test_FMADD_ASSOC2:
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; CHECK-VSX-UNSAFE: xsmaddmdp
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; CHECK-VSX-UNSAFE-NEXT: xsmaddadp
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; CHECK-VSX-UNSAFE-NEXT: fmr
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; CHECK-VSX-UNSAFE-NEXT: blr
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}
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define double @test_FMSUB_ASSOC1(double %A, double %B, double %C,
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double %D, double %E) {
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%F = fmul double %A, %B ; <double> [#uses=1]
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%G = fmul double %C, %D ; <double> [#uses=1]
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%H = fadd double %F, %G ; <double> [#uses=1]
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%I = fsub double %H, %E ; <double> [#uses=1]
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ret double %I
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; CHECK-SAFE-LABEL: test_FMSUB_ASSOC1:
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; CHECK-SAFE: fmul
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; CHECK-SAFE-NEXT: fmadd
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; CHECK-SAFE-NEXT: fsub
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; CHECK-SAFE-NEXT: blr
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; CHECK-UNSAFE-LABEL: test_FMSUB_ASSOC1:
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; CHECK-UNSAFE: fmsub
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; CHECK-UNSAFE-NEXT: fmadd
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; CHECK-UNSAFE-NEXT: blr
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; CHECK-SAFE-VSX-LABEL: test_FMSUB_ASSOC1:
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; CHECK-SAFE-VSX: xsmuldp
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; CHECK-SAFE-VSX-NEXT: xsmaddadp
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; CHECK-SAFE-VSX-NEXT: xssubdp
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; CHECK-SAFE-VSX-NEXT: blr
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; CHECK-UNSAFE-VSX-LABEL: test_FMSUB_ASSOC1:
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; CHECK-UNSAFE-VSX: xsmsubmdp
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; CHECK-UNSAFE-VSX-NEXT: xsmaddadp
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; CHECK-UNSAFE-VSX-NEXT: fmr
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; CHECK-UNSAFE-VSX-NEXT: blr
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}
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define double @test_FMSUB_ASSOC2(double %A, double %B, double %C,
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double %D, double %E) {
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%F = fmul double %A, %B ; <double> [#uses=1]
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%G = fmul double %C, %D ; <double> [#uses=1]
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%H = fadd double %F, %G ; <double> [#uses=1]
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%I = fsub double %E, %H ; <double> [#uses=1]
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ret double %I
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; CHECK-SAFE-LABEL: test_FMSUB_ASSOC2:
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; CHECK-SAFE: fmul
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; CHECK-SAFE-NEXT: fmadd
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; CHECK-SAFE-NEXT: fsub
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; CHECK-SAFE-NEXT: blr
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; CHECK-UNSAFE-LABEL: test_FMSUB_ASSOC2:
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; CHECK-UNSAFE: fnmsub
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; CHECK-UNSAFE-NEXT: fnmsub
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; CHECK-UNSAFE-NEXT: blr
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; CHECK-SAFE-VSX-LABEL: test_FMSUB_ASSOC2:
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; CHECK-SAFE-VSX: xsmuldp
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; CHECK-SAFE-VSX-NEXT: xsmaddadp
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; CHECK-SAFE-VSX-NEXT: xssubdp
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; CHECK-SAFE-VSX-NEXT: blr
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; CHECK-UNSAFE-VSX-LABEL: test_FMSUB_ASSOC2:
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; CHECK-UNSAFE-VSX: xsnmsubmdp
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; CHECK-UNSAFE-VSX-NEXT: xsnmsubadp
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; CHECK-UNSAFE-VSX-NEXT: fmr
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; CHECK-UNSAFE-VSX-NEXT: blr
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}
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define double @test_FMADD_ASSOC_EXT1(float %A, float %B, double %C,
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double %D, double %E) {
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%F = fmul float %A, %B ; <float> [#uses=1]
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%G = fpext float %F to double ; <double> [#uses=1]
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%H = fmul double %C, %D ; <double> [#uses=1]
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%I = fadd double %H, %G ; <double> [#uses=1]
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%J = fadd double %I, %E ; <double> [#uses=1]
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ret double %J
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; CHECK-LABEL: test_FMADD_ASSOC_EXT1:
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; CHECK: fmadd
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; CHECK-NEXT: fmadd
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; CHECK-NEXT: blr
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; CHECK-VSX-LABEL: test_FMADD_ASSOC_EXT1:
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; CHECK-VSX: xsmaddmdp
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; CHECK-VSX-NEXT: xsmaddadp
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; CHECK-VSX-NEXT: blr
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}
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define double @test_FMADD_ASSOC_EXT2(float %A, float %B, float %C,
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float %D, double %E) {
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%F = fmul float %A, %B ; <float> [#uses=1]
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%G = fmul float %C, %D ; <float> [#uses=1]
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%H = fadd float %F, %G ; <float> [#uses=1]
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%I = fpext float %H to double ; <double> [#uses=1]
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%J = fadd double %I, %E ; <double> [#uses=1]
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ret double %J
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; CHECK-LABEL: test_FMADD_ASSOC_EXT2:
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; CHECK: fmadd
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; CHECK-NEXT: fmadd
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; CHECK-NEXT: blr
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; CHECK-VSX-LABEL: test_FMADD_ASSOC_EXT2:
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; CHECK-VSX: xsmaddmdp
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; CHECK-VSX-NEXT: xsmaddadp
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; CHECK-VSX-NEXT: fmr
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; CHECK-VSX-NEXT: blr
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}
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define double @test_FMADD_ASSOC_EXT3(float %A, float %B, double %C,
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double %D, double %E) {
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%F = fmul float %A, %B ; <float> [#uses=1]
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%G = fpext float %F to double ; <double> [#uses=1]
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%H = fmul double %C, %D ; <double> [#uses=1]
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%I = fadd double %H, %G ; <double> [#uses=1]
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%J = fadd double %E, %I ; <double> [#uses=1]
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ret double %J
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; CHECK-LABEL: test_FMADD_ASSOC_EXT3:
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; CHECK: fmadd
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; CHECK-NEXT: fmadd
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; CHECK-NEXT: blr
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; CHECK-VSX-LABEL: test_FMADD_ASSOC_EXT3:
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; CHECK-VSX: xsmaddmdp
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; CHECK-VSX-NEXT: xsmaddadp
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; CHECK-VSX-NEXT: blr
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}
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define double @test_FMADD_ASSOC_EXT4(float %A, float %B, float %C,
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float %D, double %E) {
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%F = fmul float %A, %B ; <float> [#uses=1]
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%G = fmul float %C, %D ; <float> [#uses=1]
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%H = fadd float %F, %G ; <float> [#uses=1]
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%I = fpext float %H to double ; <double> [#uses=1]
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%J = fadd double %E, %I ; <double> [#uses=1]
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ret double %J
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; CHECK-LABEL: test_FMADD_ASSOC_EXT4:
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; CHECK: fmadd
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; CHECK-NEXT: fmadd
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; CHECK-NEXT: blr
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; CHECK-VSX-LABEL: test_FMADD_ASSOC_EXT4:
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; CHECK-VSX: xsmaddmdp
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; CHECK-VSX-NEXT: xsmaddadp
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; CHECK-VSX-NEXT: fmr
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; CHECK-VSX-NEXT: blr
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}
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define double @test_FMSUB_ASSOC_EXT1(float %A, float %B, double %C,
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double %D, double %E) {
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%F = fmul float %A, %B ; <float> [#uses=1]
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%G = fpext float %F to double ; <double> [#uses=1]
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%H = fmul double %C, %D ; <double> [#uses=1]
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%I = fadd double %H, %G ; <double> [#uses=1]
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%J = fsub double %I, %E ; <double> [#uses=1]
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ret double %J
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; CHECK-LABEL: test_FMSUB_ASSOC_EXT1:
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; CHECK: fmsub
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; CHECK-NEXT: fmadd
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; CHECK-NEXT: blr
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; CHECK-VSX-LABEL: test_FMSUB_ASSOC_EXT1:
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; CHECK-VSX: xsmsubmdp
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; CHECK-VSX-NEXT: xsmaddadp
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; CHECK-VSX-NEXT: blr
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}
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define double @test_FMSUB_ASSOC_EXT2(float %A, float %B, float %C,
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float %D, double %E) {
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%F = fmul float %A, %B ; <float> [#uses=1]
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%G = fmul float %C, %D ; <float> [#uses=1]
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%H = fadd float %F, %G ; <float> [#uses=1]
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%I = fpext float %H to double ; <double> [#uses=1]
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%J = fsub double %I, %E ; <double> [#uses=1]
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ret double %J
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; CHECK-LABEL: test_FMSUB_ASSOC_EXT2:
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; CHECK: fmsub
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; CHECK-NEXT: fmadd
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; CHECK-NEXT: blr
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; CHECK-VSX-LABEL: test_FMSUB_ASSOC_EXT2:
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; CHECK-VSX: xsmsubmdp
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; CHECK-VSX-NEXT: xsmaddadp
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; CHECK-VSX-NEXT: fmr
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; CHECK-VSX-NEXT: blr
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}
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define double @test_FMSUB_ASSOC_EXT3(float %A, float %B, double %C,
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double %D, double %E) {
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%F = fmul float %A, %B ; <float> [#uses=1]
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%G = fpext float %F to double ; <double> [#uses=1]
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%H = fmul double %C, %D ; <double> [#uses=1]
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%I = fadd double %H, %G ; <double> [#uses=1]
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%J = fsub double %E, %I ; <double> [#uses=1]
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ret double %J
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; CHECK-LABEL: test_FMSUB_ASSOC_EXT3:
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; CHECK: fnmsub
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; CHECK-NEXT: fnmsub
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; CHECK-NEXT: blr
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; CHECK-VSX-LABEL: test_FMSUB_ASSOC_EXT3:
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; CHECK-VSX: xsnmsubmdp
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; CHECK-VSX-NEXT: xsnmsubadp
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; CHECK-VSX-NEXT: fmr
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; CHECK-VSX-NEXT: blr
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}
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define double @test_FMSUB_ASSOC_EXT4(float %A, float %B, float %C,
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float %D, double %E) {
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%F = fmul float %A, %B ; <float> [#uses=1]
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%G = fmul float %C, %D ; <float> [#uses=1]
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%H = fadd float %F, %G ; <float> [#uses=1]
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%I = fpext float %H to double ; <double> [#uses=1]
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%J = fsub double %E, %I ; <double> [#uses=1]
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ret double %J
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; CHECK-LABEL: test_FMSUB_ASSOC_EXT4:
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; CHECK: fnmsub
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; CHECK-NEXT: fnmsub
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; CHECK-NEXT: blr
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; CHECK-VSX-LABEL: test_FMSUB_ASSOC_EXT4:
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; CHECK-VSX: xsnmsubmdp
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; CHECK-VSX-NEXT: xsnmsubadp
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; CHECK-VSX-NEXT: fmr
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; CHECK-VSX-NEXT: blr
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}
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