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Make sure FABS on v2f32 and v4f32 is legal on ARM NEON

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This fixes PR14359


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168200 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2012-11-16 21:15:20 +00:00
parent ccc015d431
commit b1a392e7c5
3 changed files with 26 additions and 7 deletions
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1
lib/Target/ARM/ARMISelLowering.cpp
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@ -505,7 +505,6 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
setOperationAction(ISD::FNEARBYINT, MVT::v2f64, Expand);
setOperationAction(ISD::FFLOOR, MVT::v2f64, Expand);
setOperationAction(ISD::FABS, MVT::v4f32, Expand);
setOperationAction(ISD::FSQRT, MVT::v4f32, Expand);
setOperationAction(ISD::FSIN, MVT::v4f32, Expand);
setOperationAction(ISD::FCOS, MVT::v4f32, Expand);

15
lib/Target/ARM/ARMInstrNEON.td
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@ -4877,12 +4877,15 @@ defm VSRI : N2VShInsR_QHSD<1, 1, 0b0100, 1, "vsri">;
defm VABS : N2VInt_QHS<0b11, 0b11, 0b01, 0b00110, 0,
IIC_VUNAiD, IIC_VUNAiQ, "vabs", "s",
int_arm_neon_vabs>;
def VABSfd : N2VDInt<0b11, 0b11, 0b10, 0b01, 0b01110, 0,
IIC_VUNAD, "vabs", "f32",
v2f32, v2f32, int_arm_neon_vabs>;
def VABSfq : N2VQInt<0b11, 0b11, 0b10, 0b01, 0b01110, 0,
IIC_VUNAQ, "vabs", "f32",
v4f32, v4f32, int_arm_neon_vabs>;
def VABSfd : N2VD<0b11, 0b11, 0b10, 0b01, 0b01110, 0,
"vabs", "f32",
v2f32, v2f32, fabs>;
def VABSfq : N2VQ<0b11, 0b11, 0b10, 0b01, 0b01110, 0,
"vabs", "f32",
v4f32, v4f32, fabs>;
def : Pat<(v2f32 (int_arm_neon_vabs (v2f32 DPR:$src))), (VABSfd DPR:$src)>;
def : Pat<(v4f32 (int_arm_neon_vabs (v4f32 QPR:$src))), (VABSfq QPR:$src)>;
// VQABS : Vector Saturating Absolute Value
defm VQABS : N2VInt_QHS<0b11, 0b11, 0b00, 0b01110, 0,

17
test/CodeGen/ARM/fabs-neon.ll Normal file
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@ -0,0 +1,17 @@
; RUN: llc < %s -mtriple=armv7-eabi -float-abi=hard -mcpu=cortex-a8 | FileCheck %s
; CHECK: test:
; CHECK: vabs.f32 q0, q0
define <4 x float> @test(<4 x float> %a) {
%foo = call <4 x float> @llvm.fabs.v4f32(<4 x float> %a)
ret <4 x float> %foo
}
declare <4 x float> @llvm.fabs.v4f32(<4 x float> %a)
; CHECK: test2:
; CHECK: vabs.f32 d0, d0
define <2 x float> @test2(<2 x float> %a) {
%foo = call <2 x float> @llvm.fabs.v2f32(<2 x float> %a)
ret <2 x float> %foo
}
declare <2 x float> @llvm.fabs.v2f32(<2 x float> %a)