llvm/test/CodeGen/PowerPC/vec_fneg.ll
Kit Barton 5b4af7f722 [PPC] Legalize FNEG on PPC when possible
Currently we always expand ISD::FNEG. For v4f32 and v2f64 vector types VSX has
native support for this opcode

Phabricator: http://reviews.llvm.org/D17647

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262079 91177308-0d34-0410-b5e6-96231b3b80d8
2016-02-26 21:59:44 +00:00

38 lines
1.1 KiB
LLVM

; RUN: llc < %s -march=ppc32 -mcpu=g5 | FileCheck %s -check-prefix=CHECK-NOVSX
; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -march=ppc64le \
; RUN: -mattr=+altivec -mattr=+vsx | FileCheck %s
; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -march=ppc64le \
; RUN: -mattr=+altivec -mattr=-vsx | FileCheck %s \
; RUN: -check-prefix=CHECK-NOVSX
define void @test_float(<4 x float>* %A) {
; CHECK-LABEL: test_float
; CHECK-NOVSX-LABEL: test_float
%tmp2 = load <4 x float>, <4 x float>* %A
%tmp3 = fsub <4 x float> < float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00 >, %tmp2
store <4 x float> %tmp3, <4 x float>* %A
ret void
; CHECK: xvnegsp
; CHECK: blr
; CHECK-NOVSX: vsubfp
; CHECK-NOVSX: blr
}
define void @test_double(<2 x double>* %A) {
; CHECK-LABEL: test_double
; CHECK-NOVSX-LABEL: test_double
%tmp2 = load <2 x double>, <2 x double>* %A
%tmp3 = fsub <2 x double> < double -0.000000e+00, double -0.000000e+00 >, %tmp2
store <2 x double> %tmp3, <2 x double>* %A
ret void
; CHECK: xvnegdp
; CHECK: blr
; CHECK-NOVSX: fneg
; CHECK-NOVSX: fneg
; CHECK-NOVSX: blr
}