Files
clang-p2996/llvm/test/CodeGen/PowerPC/fma.ll
Qiu Chaofan 8ffe8891cd [PowerPC] Exploit VSX neg, abs and nabs for f32
xsnegdp, xsabsdp and xsnabsdp can be used to operate on f32 operand.

This patch adds the missing patterns since we prefer VSX instructions
when available.

Reviewed By: steven.zhang

Differential Revision: https://reviews.llvm.org/D75344
2020-05-13 14:28:50 +08:00

218 lines
6.5 KiB
LLVM

; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -fp-contract=fast -mattr=-vsx -disable-ppc-vsx-fma-mutation=false | FileCheck %s
; 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 %s
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-unknown-linux-gnu -fp-contract=fast -mcpu=pwr8 -disable-ppc-vsx-fma-mutation=false | FileCheck -check-prefix=CHECK-P8 %s
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64le-unknown-linux-gnu -fp-contract=fast -mcpu=pwr8 -disable-ppc-vsx-fma-mutation=false | FileCheck -check-prefix=CHECK-P8 %s
declare double @dummy1(double) #0
declare double @dummy2(double, double) #0
declare double @dummy3(double, double, double) #0
declare float @dummy4(float, float) #0
define double @test_FMADD1(double %A, double %B, double %C) {
%D = fmul double %A, %B ; <double> [#uses=1]
%E = fadd double %C, %D ; <double> [#uses=1]
ret double %E
; CHECK-LABEL: test_FMADD1:
; CHECK: fmadd
; CHECK-NEXT: blr
; CHECK-VSX-LABEL: test_FMADD1:
; CHECK-VSX: xsmaddmdp
; CHECK-VSX-NEXT: blr
}
define double @test_FMADD2(double %A, double %B, double %C) {
%D = fmul double %A, %B ; <double> [#uses=1]
%E = fadd double %D, %C ; <double> [#uses=1]
ret double %E
; CHECK-LABEL: test_FMADD2:
; CHECK: fmadd
; CHECK-NEXT: blr
; CHECK-VSX-LABEL: test_FMADD2:
; CHECK-VSX: xsmaddmdp
; CHECK-VSX-NEXT: blr
}
define double @test_FMSUB1(double %A, double %B, double %C) {
%D = fmul double %A, %B ; <double> [#uses=1]
%E = fsub double %D, %C ; <double> [#uses=1]
ret double %E
; CHECK-LABEL: test_FMSUB1:
; CHECK: fmsub
; CHECK-NEXT: blr
; CHECK-VSX-LABEL: test_FMSUB1:
; CHECK-VSX: xsmsubmdp
; CHECK-VSX-NEXT: blr
}
define double @test_FMSUB2(double %A, double %B, double %C, double %D) {
%E = fmul double %A, %B ; <double> [#uses=2]
%F = fadd double %E, %C ; <double> [#uses=1]
%G = fsub double %E, %D ; <double> [#uses=1]
%H = call double @dummy2(double %F, double %G) ; <double> [#uses=1]
ret double %H
; CHECK-LABEL: test_FMSUB2:
; CHECK: fmadd
; CHECK-NEXT: fmsub
; CHECK-VSX-LABEL: test_FMSUB2:
; CHECK-VSX: xsmaddadp
; CHECK-VSX-NEXT: xsmsubmdp
}
define double @test_FNMADD1(double %A, double %B, double %C) {
%D = fmul double %A, %B ; <double> [#uses=1]
%E = fadd double %D, %C ; <double> [#uses=1]
%F = fsub double -0.000000e+00, %E ; <double> [#uses=1]
ret double %F
; CHECK-LABEL: test_FNMADD1:
; CHECK: fnmadd
; CHECK-NEXT: blr
; CHECK-VSX-LABEL: test_FNMADD1:
; CHECK-VSX: xsnmaddmdp
; CHECK-VSX-NEXT: blr
}
define double @test_FNMADD2(double %A, double %B, double %C) {
%D = fmul double %A, %B ; <double> [#uses=1]
%E = fadd double %C, %D ; <double> [#uses=1]
%F = fsub double -0.000000e+00, %E ; <double> [#uses=1]
ret double %F
; CHECK-LABEL: test_FNMADD2:
; CHECK: fnmadd
; CHECK-NEXT: blr
; CHECK-VSX-LABEL: test_FNMADD2:
; CHECK-VSX: xsnmaddmdp
; CHECK-VSX-NEXT: blr
}
define double @test_FNMSUB1(double %A, double %B, double %C) {
%D = fmul double %A, %B ; <double> [#uses=1]
%E = fsub double %C, %D ; <double> [#uses=1]
ret double %E
; CHECK-LABEL: test_FNMSUB1:
; CHECK: fnmsub
; CHECK-NEXT: blr
; CHECK-VSX-LABEL: test_FNMSUB1:
; CHECK-VSX: xsnmsubmdp
}
define double @test_FNMSUB2(double %A, double %B, double %C) {
%D = fmul double %A, %B ; <double> [#uses=1]
%E = fsub double %D, %C ; <double> [#uses=1]
%F = fsub double -0.000000e+00, %E ; <double> [#uses=1]
ret double %F
; CHECK-LABEL: test_FNMSUB2:
; CHECK: fnmsub
; CHECK-NEXT: blr
; CHECK-VSX-LABEL: test_FNMSUB2:
; CHECK-VSX: xsnmsubmdp
; CHECK-VSX-NEXT: blr
}
define float @test_FNMSUBS(float %A, float %B, float %C) {
%D = fmul float %A, %B ; <float> [#uses=1]
%E = fsub float %D, %C ; <float> [#uses=1]
%F = fsub float -0.000000e+00, %E ; <float> [#uses=1]
ret float %F
; CHECK-LABEL: test_FNMSUBS:
; CHECK: fnmsubs
; CHECK-NEXT: blr
; CHECK-VSX-LABEL: test_FNMSUBS:
; CHECK-VSX: fnmsubs
; CHECK-VSX-NEXT: blr
}
define float @test_XSMADDMSP(float %A, float %B, float %C) {
%D = fmul float %A, %B ; <float> [#uses=1]
%E = fadd float %C, %D ; <float> [#uses=1]
ret float %E
; CHECK-P8-LABEL: test_XSMADDMSP:
; CHECK-P8: xsmaddmsp
; CHECK-P8-NEXT: blr
}
define float @test_XSMSUBMSP(float %A, float %B, float %C) {
%D = fmul float %A, %B ; <float> [#uses=1]
%E = fsub float %D, %C ; <float> [#uses=1]
ret float %E
; CHECK-P8-LABEL: test_XSMSUBMSP:
; CHECK-P8: xsmsubmsp
; CHECK-P8-NEXT: blr
}
define float @test_XSMADDASP(float %A, float %B, float %C, float %D) {
%E = fmul float %A, %B ; <float> [#uses=2]
%F = fadd float %E, %C ; <float> [#uses=1]
%G = fsub float %E, %D ; <float> [#uses=1]
%H = call float @dummy4(float %F, float %G) ; <float> [#uses=1]
ret float %H
; CHECK-P8-LABEL: test_XSMADDASP:
; CHECK-P8: xsmaddasp
; CHECK-P8-NEXT: xsmsubmsp
}
define float @test_XSMSUBASP(float %A, float %B, float %C, float %D) {
%E = fmul float %A, %B ; <float> [#uses=2]
%F = fsub float %E, %C ; <float> [#uses=1]
%G = fsub float %E, %D ; <float> [#uses=1]
%H = call float @dummy4(float %F, float %G) ; <float> [#uses=1]
ret float %H
; CHECK-P8-LABEL: test_XSMSUBASP:
; CHECK-P8: xsmsubasp
; CHECK-P8-NEXT: xsmsubmsp
}
define float @test_XSNMADDMSP(float %A, float %B, float %C) {
%D = fmul float %A, %B ; <float> [#uses=1]
%E = fadd float %D, %C ; <float> [#uses=1]
%F = fsub float -0.000000e+00, %E ; <float> [#uses=1]
ret float %F
; CHECK-P8-LABEL: test_XSNMADDMSP:
; CHECK-P8: xsnmaddmsp
; CHECK-P8-NEXT: blr
}
define float @test_XSNMSUBMSP(float %A, float %B, float %C) {
%D = fmul float %A, %B ; <float> [#uses=1]
%E = fsub float %D, %C ; <float> [#uses=1]
%F = fsub float -0.000000e+00, %E ; <float> [#uses=1]
ret float %F
; CHECK-P8-LABEL: test_XSNMSUBMSP:
; CHECK-P8: xsnmsubmsp
; CHECK-P8-NEXT: blr
}
define float @test_XSNMADDASP(float %A, float %B, float %C) {
%D = fmul float %A, %B ; <float> [#uses=1]
%E = fadd float %D, %C ; <float> [#uses=1]
%F = fsub float -0.000000e+00, %E ; <float> [#uses=1]
%H = call float @dummy4(float %E, float %F) ; <float> [#uses=1]
ret float %F
; CHECK-P8-LABEL: test_XSNMADDASP:
; CHECK-P8: xsnmaddasp
; CHECK-VSX-LABEL: test_XSNMADDASP:
; CHECK-VSX: fnmadds
}
define float @test_XSNMSUBASP(float %A, float %B, float %C) {
%D = fmul float %A, %B ; <float> [#uses=1]
%E = fsub float %D, %C ; <float> [#uses=1]
%F = fsub float -0.000000e+00, %E ; <float> [#uses=1]
%H = call float @dummy4(float %E, float %F) ; <float> [#uses=1]
ret float %F
; CHECK-P8-LABEL: test_XSNMSUBASP:
; CHECK-P8: xsnmsubasp
; CHECK-VSX-LABEL: test_XSNMSUBASP:
; CHECK-VSX: fnmsubs
}