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[AArch64][SVE] Lower fixed length INSERT_VECTOR_ELT

Differential Revision: https://reviews.llvm.org/D98496
This commit is contained in:
Joe Ellis 2021-03-29 10:11:42 +00:00
parent 335098db66
commit d7292c341a
3 changed files with 323 additions and 0 deletions

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@ -1458,6 +1458,7 @@ void AArch64TargetLowering::addTypeForFixedLengthSVE(MVT VT) {
setOperationAction(ISD::VECREDUCE_FMAX, VT, Custom);
setOperationAction(ISD::VECREDUCE_FMIN, VT, Custom);
setOperationAction(ISD::VECREDUCE_OR, VT, Custom);
setOperationAction(ISD::INSERT_VECTOR_ELT, VT, Custom);
setOperationAction(ISD::VECREDUCE_SMAX, VT, Custom);
setOperationAction(ISD::VECREDUCE_SMIN, VT, Custom);
setOperationAction(ISD::VECREDUCE_UMAX, VT, Custom);
@ -9964,6 +9965,9 @@ SDValue AArch64TargetLowering::LowerINSERT_VECTOR_ELT(SDValue Op,
SelectionDAG &DAG) const {
assert(Op.getOpcode() == ISD::INSERT_VECTOR_ELT && "Unknown opcode!");
if (useSVEForFixedLengthVectorVT(Op.getValueType()))
return LowerFixedLengthInsertVectorElt(Op, DAG);
// Check for non-constant or out of range lane.
EVT VT = Op.getOperand(0).getValueType();
ConstantSDNode *CI = dyn_cast<ConstantSDNode>(Op.getOperand(2));
@ -17196,6 +17200,22 @@ SDValue AArch64TargetLowering::LowerFixedLengthExtractVectorElt(
return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, VT, Op0, Op.getOperand(1));
}
SDValue AArch64TargetLowering::LowerFixedLengthInsertVectorElt(
SDValue Op, SelectionDAG &DAG) const {
EVT VT = Op.getValueType();
assert(VT.isFixedLengthVector() && "Expected fixed length vector type!");
SDLoc DL(Op);
EVT InVT = Op.getOperand(0).getValueType();
EVT ContainerVT = getContainerForFixedLengthVector(DAG, InVT);
SDValue Op0 = convertToScalableVector(DAG, ContainerVT, Op->getOperand(0));
auto ScalableRes = DAG.getNode(ISD::INSERT_VECTOR_ELT, DL, ContainerVT, Op0,
Op.getOperand(1), Op.getOperand(2));
return convertFromScalableVector(DAG, VT, ScalableRes);
}
// Convert vector operation 'Op' to an equivalent predicated operation whereby
// the original operation's type is used to construct a suitable predicate.
// NOTE: The results for inactive lanes are undefined.

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@ -989,6 +989,7 @@ private:
SDValue LowerFixedLengthVectorTruncateToSVE(SDValue Op,
SelectionDAG &DAG) const;
SDValue LowerFixedLengthExtractVectorElt(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerFixedLengthInsertVectorElt(SDValue Op, SelectionDAG &DAG) const;
SDValue BuildSDIVPow2(SDNode *N, const APInt &Divisor, SelectionDAG &DAG,
SmallVectorImpl<SDNode *> &Created) const override;

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@ -0,0 +1,302 @@
; RUN: llc -aarch64-sve-vector-bits-min=128 < %s | FileCheck %s -D#VBYTES=16 -check-prefix=NO_SVE
; RUN: llc -aarch64-sve-vector-bits-min=256 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256
; RUN: llc -aarch64-sve-vector-bits-min=384 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256
; RUN: llc -aarch64-sve-vector-bits-min=512 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256,VBITS_GE_512
; RUN: llc -aarch64-sve-vector-bits-min=640 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256,VBITS_GE_512
; RUN: llc -aarch64-sve-vector-bits-min=768 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256,VBITS_GE_512
; RUN: llc -aarch64-sve-vector-bits-min=896 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256,VBITS_GE_512
; RUN: llc -aarch64-sve-vector-bits-min=1024 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256,VBITS_GE_512,VBITS_GE_1024
; RUN: llc -aarch64-sve-vector-bits-min=1152 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256,VBITS_GE_512,VBITS_GE_1024
; RUN: llc -aarch64-sve-vector-bits-min=1280 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256,VBITS_GE_512,VBITS_GE_1024
; RUN: llc -aarch64-sve-vector-bits-min=1408 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256,VBITS_GE_512,VBITS_GE_1024
; RUN: llc -aarch64-sve-vector-bits-min=1536 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256,VBITS_GE_512,VBITS_GE_1024
; RUN: llc -aarch64-sve-vector-bits-min=1664 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256,VBITS_GE_512,VBITS_GE_1024
; RUN: llc -aarch64-sve-vector-bits-min=1792 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256,VBITS_GE_512,VBITS_GE_1024
; RUN: llc -aarch64-sve-vector-bits-min=1920 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256,VBITS_GE_512,VBITS_GE_1024
; RUN: llc -aarch64-sve-vector-bits-min=2048 -asm-verbose=0 < %s | FileCheck %s -check-prefixes=CHECK,VBITS_GE_256,VBITS_GE_512,VBITS_GE_1024,VBITS_GE_2048
target triple = "aarch64-unknown-linux-gnu"
; Don't use SVE when its registers are no bigger than NEON.
; NO_SVE-NOT: ptrue
;
; insertelement
;
; Don't use SVE for 64-bit vectors.
define <4 x half> @insertelement_v4f16(<4 x half> %op1) #0 {
; CHECK-LABEL: insertelement_v4f16:
; CHECK: fmov h1, #5.00000000
; CHECK-NEXT: mov v0.h[3], v1.h[0]
; CHECK-NEXT: ret
%r = insertelement <4 x half> %op1, half 5.0, i64 3
ret <4 x half> %r
}
; Don't use SVE for 128-bit vectors.
define <8 x half> @insertelement_v8f16(<8 x half> %op1) #0 {
; CHECK-LABEL: insertelement_v8f16:
; CHECK: fmov h1, #5.00000000
; CHECK-NEXT: mov v0.h[7], v1.h[0]
; CHECK-NEXT: ret
%r = insertelement <8 x half> %op1, half 5.0, i64 7
ret <8 x half> %r
}
define <16 x half> @insertelement_v16f16(<16 x half>* %a) #0 {
; CHECK-LABEL: insertelement_v16f16:
; VBITS_GE_256: ptrue p0.h, vl16
; VBITS_GE_256-NEXT: ld1h { z0.h }, p0/z, [x0]
; VBITS_GE_256-NEXT: mov w9, #15
; VBITS_GE_256-NEXT: mov z1.h, w9
; VBITS_GE_256-NEXT: index z2.h, #0, #1
; VBITS_GE_256-NEXT: ptrue p1.h
; VBITS_GE_256-NEXT: cmpeq p1.h, p1/z, z2.h, z1.h
; VBITS_GE_256-NEXT: fmov h1, #5.00000000
; VBITS_GE_256-NEXT: mov z0.h, p1/m, h1
; VBITS_GE_256-NEXT: st1h { z0.h }, p0, [x8]
; VBITS_GE_256-NEXT: ret
%op1 = load <16 x half>, <16 x half>* %a
%r = insertelement <16 x half> %op1, half 5.0, i64 15
ret <16 x half> %r
}
define <32 x half> @insertelement_v32f16(<32 x half>* %a) #0 {
; CHECK-LABEL: insertelement_v32f16:
; VBITS_GE_512: ptrue p0.h, vl32
; VBITS_GE_512-NEXT: ld1h { z0.h }, p0/z, [x0]
; VBITS_GE_512-NEXT: mov w9, #31
; VBITS_GE_512-NEXT: mov z1.h, w9
; VBITS_GE_512-NEXT: index z2.h, #0, #1
; VBITS_GE_512-NEXT: ptrue p1.h
; VBITS_GE_512-NEXT: cmpeq p1.h, p1/z, z2.h, z1.h
; VBITS_GE_512-NEXT: fmov h1, #5.00000000
; VBITS_GE_512-NEXT: mov z0.h, p1/m, h1
; VBITS_GE_512-NEXT: st1h { z0.h }, p0, [x8]
; VBITS_GE_512-NEXT: ret
%op1 = load <32 x half>, <32 x half>* %a
%r = insertelement <32 x half> %op1, half 5.0, i64 31
ret <32 x half> %r
}
define <64 x half> @insertelement_v64f16(<64 x half>* %a) #0 {
; CHECK-LABEL: insertelement_v64f16:
; VBITS_GE_1024: ptrue p0.h, vl64
; VBITS_GE_1024-NEXT: ld1h { z0.h }, p0/z, [x0]
; VBITS_GE_1024-NEXT: mov w9, #63
; VBITS_GE_1024-NEXT: mov z1.h, w9
; VBITS_GE_1024-NEXT: index z2.h, #0, #1
; VBITS_GE_1024-NEXT: ptrue p1.h
; VBITS_GE_1024-NEXT: cmpeq p1.h, p1/z, z2.h, z1.h
; VBITS_GE_1024-NEXT: fmov h1, #5.00000000
; VBITS_GE_1024-NEXT: mov z0.h, p1/m, h1
; VBITS_GE_1024-NEXT: st1h { z0.h }, p0, [x8]
; VBITS_GE_1024-NEXT: ret
%op1 = load <64 x half>, <64 x half>* %a
%r = insertelement <64 x half> %op1, half 5.0, i64 63
ret <64 x half> %r
}
define <128 x half> @insertelement_v128f16(<128 x half>* %a) #0 {
; CHECK-LABEL: insertelement_v128f16:
; VBITS_GE_2048: ptrue p0.h, vl128
; VBITS_GE_2048-NEXT: ld1h { z0.h }, p0/z, [x0]
; VBITS_GE_2048-NEXT: mov w9, #127
; VBITS_GE_2048-NEXT: mov z1.h, w9
; VBITS_GE_2048-NEXT: index z2.h, #0, #1
; VBITS_GE_2048-NEXT: ptrue p1.h
; VBITS_GE_2048-NEXT: cmpeq p1.h, p1/z, z2.h, z1.h
; VBITS_GE_2048-NEXT: fmov h1, #5.00000000
; VBITS_GE_2048-NEXT: mov z0.h, p1/m, h1
; VBITS_GE_2048-NEXT: st1h { z0.h }, p0, [x8]
; VBITS_GE_2048-NEXT: ret
%op1 = load <128 x half>, <128 x half>* %a
%r = insertelement <128 x half> %op1, half 5.0, i64 127
ret <128 x half> %r
}
; Don't use SVE for 64-bit vectors.
define <2 x float> @insertelement_v2f32(<2 x float> %op1) #0 {
; CHECK-LABEL: insertelement_v2f32:
; CHECK: fmov s1, #5.00000000
; CHECK-NEXT: mov v0.s[1], v1.s[0]
; CHECK-NEXT: ret
%r = insertelement <2 x float> %op1, float 5.0, i64 1
ret <2 x float> %r
}
; Don't use SVE for 128-bit vectors.
define <4 x float> @insertelement_v4f32(<4 x float> %op1) #0 {
; CHECK-LABEL: insertelement_v4f32:
; CHECK: fmov s1, #5.00000000
; CHECK-NEXT: mov v0.s[3], v1.s[0]
; CHECK-NEXT: ret
%r = insertelement <4 x float> %op1, float 5.0, i64 3
ret <4 x float> %r
}
define <8 x float> @insertelement_v8f32(<8 x float>* %a) #0 {
; CHECK-LABEL: insertelement_v8f32:
; VBITS_GE_256: ptrue p0.s, vl8
; VBITS_GE_256-NEXT: ld1w { z0.s }, p0/z, [x0]
; VBITS_GE_256-NEXT: mov w9, #7
; VBITS_GE_256-NEXT: mov z1.s, w9
; VBITS_GE_256-NEXT: index z2.s, #0, #1
; VBITS_GE_256-NEXT: ptrue p1.s
; VBITS_GE_256-NEXT: cmpeq p1.s, p1/z, z2.s, z1.s
; VBITS_GE_256-NEXT: fmov s1, #5.00000000
; VBITS_GE_256-NEXT: mov z0.s, p1/m, s1
; VBITS_GE_256-NEXT: st1w { z0.s }, p0, [x8]
; VBITS_GE_256-NEXT: ret
%op1 = load <8 x float>, <8 x float>* %a
%r = insertelement <8 x float> %op1, float 5.0, i64 7
ret <8 x float> %r
}
define <16 x float> @insertelement_v16f32(<16 x float>* %a) #0 {
; CHECK-LABEL: insertelement_v16f32:
; VBITS_GE_512: ptrue p0.s, vl16
; VBITS_GE_512-NEXT: ld1w { z0.s }, p0/z, [x0]
; VBITS_GE_512-NEXT: mov w9, #15
; VBITS_GE_512-NEXT: mov z1.s, w9
; VBITS_GE_512-NEXT: index z2.s, #0, #1
; VBITS_GE_512-NEXT: ptrue p1.s
; VBITS_GE_512-NEXT: cmpeq p1.s, p1/z, z2.s, z1.s
; VBITS_GE_512-NEXT: fmov s1, #5.00000000
; VBITS_GE_512-NEXT: mov z0.s, p1/m, s1
; VBITS_GE_512-NEXT: st1w { z0.s }, p0, [x8]
; VBITS_GE_512-NEXT: ret
%op1 = load <16 x float>, <16 x float>* %a
%r = insertelement <16 x float> %op1, float 5.0, i64 15
ret <16 x float> %r
}
define <32 x float> @insertelement_v32f32(<32 x float>* %a) #0 {
; CHECK-LABEL: insertelement_v32f32:
; VBITS_GE_1024: ptrue p0.s, vl32
; VBITS_GE_1024-NEXT: ld1w { z0.s }, p0/z, [x0]
; VBITS_GE_1024-NEXT: mov w9, #31
; VBITS_GE_1024-NEXT: mov z1.s, w9
; VBITS_GE_1024-NEXT: index z2.s, #0, #1
; VBITS_GE_1024-NEXT: ptrue p1.s
; VBITS_GE_1024-NEXT: cmpeq p1.s, p1/z, z2.s, z1.s
; VBITS_GE_1024-NEXT: fmov s1, #5.00000000
; VBITS_GE_1024-NEXT: mov z0.s, p1/m, s1
; VBITS_GE_1024-NEXT: st1w { z0.s }, p0, [x8]
; VBITS_GE_1024-NEXT: ret
%op1 = load <32 x float>, <32 x float>* %a
%r = insertelement <32 x float> %op1, float 5.0, i64 31
ret <32 x float> %r
}
define <64 x float> @insertelement_v64f32(<64 x float>* %a) #0 {
; CHECK-LABEL: insertelement_v64f32:
; VBITS_GE_2048: ptrue p0.s, vl64
; VBITS_GE_2048-NEXT: ld1w { z0.s }, p0/z, [x0]
; VBITS_GE_2048-NEXT: mov w9, #63
; VBITS_GE_2048-NEXT: mov z1.s, w9
; VBITS_GE_2048-NEXT: index z2.s, #0, #1
; VBITS_GE_2048-NEXT: ptrue p1.s
; VBITS_GE_2048-NEXT: cmpeq p1.s, p1/z, z2.s, z1.s
; VBITS_GE_2048-NEXT: fmov s1, #5.00000000
; VBITS_GE_2048-NEXT: mov z0.s, p1/m, s1
; VBITS_GE_2048-NEXT: st1w { z0.s }, p0, [x8]
; VBITS_GE_2048-NEXT: ret
%op1 = load <64 x float>, <64 x float>* %a
%r = insertelement <64 x float> %op1, float 5.0, i64 63
ret <64 x float> %r
}
; Don't use SVE for 64-bit vectors.
define <1 x double> @insertelement_v1f64(<1 x double> %op1) #0 {
; CHECK-LABEL: insertelement_v1f64:
; CHECK: fmov d0, #5.00000000
; CHECK-NEXT: ret
%r = insertelement <1 x double> %op1, double 5.0, i64 0
ret <1 x double> %r
}
; Don't use SVE for 128-bit vectors.
define <2 x double> @insertelement_v2f64(<2 x double> %op1) #0 {
; CHECK-LABEL: insertelement_v2f64:
; CHECK: fmov d1, #5.00000000
; CHECK-NEXT: mov v0.d[1], v1.d[0]
; CHECK-NEXT: ret
%r = insertelement <2 x double> %op1, double 5.0, i64 1
ret <2 x double> %r
}
define <4 x double> @insertelement_v4f64(<4 x double>* %a) #0 {
; CHECK-LABEL: insertelement_v4f64:
; VBITS_GE_256: ptrue p0.d, vl4
; VBITS_GE_256-NEXT: ld1d { z0.d }, p0/z, [x0]
; VBITS_GE_256-NEXT: mov w9, #3
; VBITS_GE_256-NEXT: mov z1.d, x9
; VBITS_GE_256-NEXT: index z2.d, #0, #1
; VBITS_GE_256-NEXT: ptrue p1.d
; VBITS_GE_256-NEXT: cmpeq p1.d, p1/z, z2.d, z1.d
; VBITS_GE_256-NEXT: fmov d1, #5.00000000
; VBITS_GE_256-NEXT: mov z0.d, p1/m, d1
; VBITS_GE_256-NEXT: st1d { z0.d }, p0, [x8]
; VBITS_GE_256-NEXT: ret
%op1 = load <4 x double>, <4 x double>* %a
%r = insertelement <4 x double> %op1, double 5.0, i64 3
ret <4 x double> %r
}
define <8 x double> @insertelement_v8f64(<8 x double>* %a) #0 {
; CHECK-LABEL: insertelement_v8f64:
; VBITS_GE_512: ptrue p0.d, vl8
; VBITS_GE_512-NEXT: ld1d { z0.d }, p0/z, [x0]
; VBITS_GE_512-NEXT: mov w9, #7
; VBITS_GE_512-NEXT: mov z1.d, x9
; VBITS_GE_512-NEXT: index z2.d, #0, #1
; VBITS_GE_512-NEXT: ptrue p1.d
; VBITS_GE_512-NEXT: cmpeq p1.d, p1/z, z2.d, z1.d
; VBITS_GE_512-NEXT: fmov d1, #5.00000000
; VBITS_GE_512-NEXT: mov z0.d, p1/m, d1
; VBITS_GE_512-NEXT: st1d { z0.d }, p0, [x8]
; VBITS_GE_512-NEXT: ret
%op1 = load <8 x double>, <8 x double>* %a
%r = insertelement <8 x double> %op1, double 5.0, i64 7
ret <8 x double> %r
}
define <16 x double> @insertelement_v16f64(<16 x double>* %a) #0 {
; CHECK-LABEL: insertelement_v16f64:
; VBITS_GE_1024: ptrue p0.d, vl16
; VBITS_GE_1024-NEXT: ld1d { z0.d }, p0/z, [x0]
; VBITS_GE_1024-NEXT: mov w9, #15
; VBITS_GE_1024-NEXT: mov z1.d, x9
; VBITS_GE_1024-NEXT: index z2.d, #0, #1
; VBITS_GE_1024-NEXT: ptrue p1.d
; VBITS_GE_1024-NEXT: cmpeq p1.d, p1/z, z2.d, z1.d
; VBITS_GE_1024-NEXT: fmov d1, #5.00000000
; VBITS_GE_1024-NEXT: mov z0.d, p1/m, d1
; VBITS_GE_1024-NEXT: st1d { z0.d }, p0, [x8]
; VBITS_GE_1024-NEXT: ret
%op1 = load <16 x double>, <16 x double>* %a
%r = insertelement <16 x double> %op1, double 5.0, i64 15
ret <16 x double> %r
}
define <32 x double> @insertelement_v32f64(<32 x double>* %a) #0 {
; CHECK-LABEL: insertelement_v32f64:
; VBITS_GE_2048: ptrue p0.d, vl32
; VBITS_GE_2048-NEXT: ld1d { z0.d }, p0/z, [x0]
; VBITS_GE_2048-NEXT: mov w9, #31
; VBITS_GE_2048-NEXT: mov z1.d, x9
; VBITS_GE_2048-NEXT: index z2.d, #0, #1
; VBITS_GE_2048-NEXT: ptrue p1.d
; VBITS_GE_2048-NEXT: cmpeq p1.d, p1/z, z2.d, z1.d
; VBITS_GE_2048-NEXT: fmov d1, #5.00000000
; VBITS_GE_2048-NEXT: mov z0.d, p1/m, d1
; VBITS_GE_2048-NEXT: st1d { z0.d }, p0, [x8]
; VBITS_GE_2048-NEXT: ret
%op1 = load <32 x double>, <32 x double>* %a
%r = insertelement <32 x double> %op1, double 5.0, i64 31
ret <32 x double> %r
}
attributes #0 = { "target-features"="+sve" }