[X86] Use X86ISD::VFPROUND instead of ISD::FP_ROUND for 256 and 512 bit cvtpd2ps intrinsics.

Summary:
Use X86ISD::VFPROUND in the instruction isel patterns. Add new patterns for ISD::FP_ROUND to maintain support for fptrunc in IR.

In the process I found a couple duplicate isel patterns which I also deleted in this patch.

Reviewers: RKSimon, spatel

Reviewed By: RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56991

llvm-svn: 351762
This commit is contained in:
Craig Topper 2019-01-21 20:14:09 +00:00
parent c2087d8f3f
commit bcbdf61078
5 changed files with 76 additions and 47 deletions

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@ -21881,35 +21881,6 @@ SDValue X86TargetLowering::LowerINTRINSIC_WO_CHAIN(SDValue Op,
// first.
return DAG.getNode(IntrData->Opc0, dl, Op.getValueType(),
Op.getOperand(2), Op.getOperand(3), Op.getOperand(1));
case CVTPD2PS:
// ISD::FP_ROUND has a second argument that indicates if the truncation
// does not change the value. Set it to 0 since it can change.
return DAG.getNode(IntrData->Opc0, dl, VT, Op.getOperand(1),
DAG.getIntPtrConstant(0, dl));
case CVTPD2PS_RND_MASK: {
SDValue Src = Op.getOperand(1);
SDValue PassThru = Op.getOperand(2);
SDValue Mask = Op.getOperand(3);
// We add rounding mode to the Node when
// - RM Opcode is specified and
// - RM is not "current direction".
unsigned IntrWithRoundingModeOpcode = IntrData->Opc1;
if (IntrWithRoundingModeOpcode != 0) {
SDValue Rnd = Op.getOperand(4);
if (!isRoundModeCurDirection(Rnd)) {
return getVectorMaskingNode(DAG.getNode(IntrWithRoundingModeOpcode,
dl, Op.getValueType(),
Src, Rnd),
Mask, PassThru, Subtarget, DAG);
}
}
assert(IntrData->Opc0 == ISD::FP_ROUND && "Unexpected opcode!");
// ISD::FP_ROUND has a second argument that indicates if the truncation
// does not change the value. Set it to 0 since it can change.
return getVectorMaskingNode(DAG.getNode(IntrData->Opc0, dl, VT, Src,
DAG.getIntPtrConstant(0, dl)),
Mask, PassThru, Subtarget, DAG);
}
case FPCLASSS: {
SDValue Src1 = Op.getOperand(1);
SDValue Imm = Op.getOperand(2);

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@ -8092,7 +8092,7 @@ multiclass avx512_cvtps2pd<bits<8> opc, string OpcodeStr,
// Truncate Double to Float
multiclass avx512_cvtpd2ps<bits<8> opc, string OpcodeStr, X86SchedWriteWidths sched> {
let Predicates = [HasAVX512] in {
defm Z : avx512_vcvt_fp<opc, OpcodeStr, v8f32x_info, v8f64_info, fpround, sched.ZMM>,
defm Z : avx512_vcvt_fp<opc, OpcodeStr, v8f32x_info, v8f64_info, X86vfpround, sched.ZMM>,
avx512_vcvt_fp_rc<opc, OpcodeStr, v8f32x_info, v8f64_info,
X86vfproundRnd, sched.ZMM>, EVEX_V512;
}
@ -8100,7 +8100,7 @@ multiclass avx512_cvtpd2ps<bits<8> opc, string OpcodeStr, X86SchedWriteWidths sc
defm Z128 : avx512_vcvt_fp<opc, OpcodeStr, v4f32x_info, v2f64x_info,
null_frag, sched.XMM, "{1to2}", "{x}", f128mem, VK2WM>,
EVEX_V128;
defm Z256 : avx512_vcvt_fp<opc, OpcodeStr, v4f32x_info, v4f64x_info, fpround,
defm Z256 : avx512_vcvt_fp<opc, OpcodeStr, v4f32x_info, v4f64x_info, X86vfpround,
sched.YMM, "{1to4}", "{y}">, EVEX_V256;
def : InstAlias<OpcodeStr##"x\t{$src, $dst|$dst, $src}",
@ -8119,10 +8119,70 @@ defm VCVTPD2PS : avx512_cvtpd2ps<0x5A, "vcvtpd2ps", SchedWriteCvtPD2PS>,
defm VCVTPS2PD : avx512_cvtps2pd<0x5A, "vcvtps2pd", SchedWriteCvtPS2PD>,
PS, EVEX_CD8<32, CD8VH>;
def : Pat<(v8f64 (extloadv8f32 addr:$src)),
(VCVTPS2PDZrm addr:$src)>;
let Predicates = [HasAVX512] in {
def : Pat<(v8f32 (fpround (v8f64 VR512:$src))),
(VCVTPD2PSZrr VR512:$src)>;
def : Pat<(vselect VK8WM:$mask, (v8f32 (fpround (v8f64 VR512:$src))),
VR256X:$src0),
(VCVTPD2PSZrrk VR256X:$src0, VK8WM:$mask, VR512:$src)>;
def : Pat<(vselect VK8WM:$mask, (v8f32 (fpround (v8f64 VR512:$src))),
v8f32x_info.ImmAllZerosV),
(VCVTPD2PSZrrkz VK8WM:$mask, VR512:$src)>;
def : Pat<(v8f32 (fpround (loadv8f64 addr:$src))),
(VCVTPD2PSZrm addr:$src)>;
def : Pat<(vselect VK8WM:$mask, (v8f32 (fpround (loadv8f64 addr:$src))),
VR256X:$src0),
(VCVTPD2PSZrmk VR256X:$src0, VK8WM:$mask, addr:$src)>;
def : Pat<(vselect VK8WM:$mask, (v8f32 (fpround (loadv8f64 addr:$src))),
v8f32x_info.ImmAllZerosV),
(VCVTPD2PSZrmkz VK8WM:$mask, addr:$src)>;
def : Pat<(v8f32 (fpround (v8f64 (X86VBroadcast (loadf64 addr:$src))))),
(VCVTPD2PSZrmb addr:$src)>;
def : Pat<(vselect VK8WM:$mask,
(fpround (v8f64 (X86VBroadcast (loadf64 addr:$src)))),
(v8f32 VR256X:$src0)),
(VCVTPD2PSZrmbk VR256X:$src0, VK8WM:$mask, addr:$src)>;
def : Pat<(vselect VK8WM:$mask,
(fpround (v8f64 (X86VBroadcast (loadf64 addr:$src)))),
v8f32x_info.ImmAllZerosV),
(VCVTPD2PSZrmbkz VK8WM:$mask, addr:$src)>;
def : Pat<(v8f64 (extloadv8f32 addr:$src)),
(VCVTPS2PDZrm addr:$src)>;
}
let Predicates = [HasVLX] in {
def : Pat<(v4f32 (fpround (v4f64 VR256X:$src))),
(VCVTPD2PSZ256rr VR256X:$src)>;
def : Pat<(vselect VK4WM:$mask, (v4f32 (fpround (v4f64 VR256X:$src))),
VR128X:$src0),
(VCVTPD2PSZ256rrk VR128X:$src0, VK4WM:$mask, VR256X:$src)>;
def : Pat<(vselect VK4WM:$mask, (v4f32 (fpround (v4f64 VR256X:$src))),
v4f32x_info.ImmAllZerosV),
(VCVTPD2PSZ256rrkz VK4WM:$mask, VR256X:$src)>;
def : Pat<(v4f32 (fpround (loadv4f64 addr:$src))),
(VCVTPD2PSZ256rm addr:$src)>;
def : Pat<(vselect VK4WM:$mask, (v4f32 (fpround (loadv4f64 addr:$src))),
VR128X:$src0),
(VCVTPD2PSZ256rmk VR128X:$src0, VK4WM:$mask, addr:$src)>;
def : Pat<(vselect VK4WM:$mask, (v4f32 (fpround (loadv4f64 addr:$src))),
v4f32x_info.ImmAllZerosV),
(VCVTPD2PSZ256rmkz VK4WM:$mask, addr:$src)>;
def : Pat<(v4f32 (fpround (v4f64 (X86VBroadcast (loadf64 addr:$src))))),
(VCVTPD2PSZ256rmb addr:$src)>;
def : Pat<(vselect VK4WM:$mask,
(v4f32 (fpround (v4f64 (X86VBroadcast (loadf64 addr:$src))))),
VR128X:$src0),
(VCVTPD2PSZ256rmbk VR128X:$src0, VK4WM:$mask, addr:$src)>;
def : Pat<(vselect VK4WM:$mask,
(v4f32 (fpround (v4f64 (X86VBroadcast (loadf64 addr:$src))))),
v4f32x_info.ImmAllZerosV),
(VCVTPD2PSZ256rmbkz VK4WM:$mask, addr:$src)>;
def : Pat<(X86vzmovl (v2f64 (bitconvert
(v4f32 (X86vfpround (v2f64 VR128X:$src)))))),
(VCVTPD2PSZ128rr VR128X:$src)>;
@ -8800,13 +8860,6 @@ let Predicates = [HasAVX512, HasVLX] in {
(VCVTUDQ2PDZ128rm addr:$src)>;
}
let Predicates = [HasAVX512] in {
def : Pat<(v8f32 (fpround (loadv8f64 addr:$src))),
(VCVTPD2PSZrm addr:$src)>;
def : Pat<(v8f64 (extloadv8f32 addr:$src)),
(VCVTPS2PDZrm addr:$src)>;
}
let Predicates = [HasDQI, HasVLX] in {
def : Pat<(X86vzmovl (v2f64 (bitconvert
(v4f32 (X86VSintToFP (v2i64 VR128X:$src)))))),

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@ -126,7 +126,7 @@ def X86vfpext : SDNode<"X86ISD::VFPEXT",
def X86vfpround: SDNode<"X86ISD::VFPROUND",
SDTypeProfile<1, 1, [SDTCVecEltisVT<0, f32>,
SDTCVecEltisVT<1, f64>,
SDTCisSameSizeAs<0, 1>]>>;
SDTCisOpSmallerThanOp<0, 1>]>>;
def X86froundRnd: SDNode<"X86ISD::VFPROUNDS_RND",
SDTypeProfile<1, 3, [SDTCVecEltisVT<0, f32>,

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@ -1769,11 +1769,11 @@ def : InstAlias<"vcvtpd2psx\t{$src, $dst|$dst, $src}",
let Predicates = [HasAVX, NoVLX] in {
def VCVTPD2PSYrr : VPDI<0x5A, MRMSrcReg, (outs VR128:$dst), (ins VR256:$src),
"cvtpd2ps\t{$src, $dst|$dst, $src}",
[(set VR128:$dst, (fpround VR256:$src))]>,
[(set VR128:$dst, (X86vfpround VR256:$src))]>,
VEX, VEX_L, Sched<[WriteCvtPD2PSY]>, VEX_WIG;
def VCVTPD2PSYrm : VPDI<0x5A, MRMSrcMem, (outs VR128:$dst), (ins f256mem:$src),
"cvtpd2ps{y}\t{$src, $dst|$dst, $src}",
[(set VR128:$dst, (fpround (loadv4f64 addr:$src)))]>,
[(set VR128:$dst, (X86vfpround (loadv4f64 addr:$src)))]>,
VEX, VEX_L, Sched<[WriteCvtPD2PSY.Folded]>, VEX_WIG;
}
def : InstAlias<"vcvtpd2psy\t{$src, $dst|$dst, $src}",
@ -1795,6 +1795,11 @@ def CVTPD2PSrm : PDI<0x5A, MRMSrcMem, (outs VR128:$dst), (ins f128mem:$src),
// whenever possible to avoid declaring two versions of each one.
let Predicates = [HasAVX, NoVLX] in {
def : Pat<(v4f32 (fpround (v4f64 VR256:$src))),
(VCVTPD2PSYrr VR256:$src)>;
def : Pat<(v4f32 (fpround (loadv4f64 addr:$src))),
(VCVTPD2PSYrm addr:$src)>;
// Match fpround and fpextend for 128/256-bit conversions
def : Pat<(X86vzmovl (v2f64 (bitconvert
(v4f32 (X86vfpround (v2f64 VR128:$src)))))),

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@ -23,7 +23,7 @@ enum IntrinsicType : uint16_t {
INTR_TYPE_1OP, INTR_TYPE_2OP, INTR_TYPE_3OP, INTR_TYPE_4OP,
INTR_TYPE_3OP_IMM8,
CMP_MASK_CC,CMP_MASK_SCALAR_CC, VSHIFT, COMI, COMI_RM, BLENDV,
CVTPD2PS, CVTPD2PS_MASK, CVTPD2PS_RND_MASK,
CVTPD2PS_MASK,
INTR_TYPE_1OP_MASK, INTR_TYPE_1OP_MASK_RM,
INTR_TYPE_2OP_MASK, INTR_TYPE_2OP_MASK_RM,
INTR_TYPE_3OP_MASK,
@ -343,7 +343,7 @@ static const IntrinsicData IntrinsicsWithoutChain[] = {
X86_INTRINSIC_DATA(avx_blendv_ps_256, BLENDV, X86ISD::BLENDV, 0),
X86_INTRINSIC_DATA(avx_cmp_pd_256, INTR_TYPE_3OP, X86ISD::CMPP, 0),
X86_INTRINSIC_DATA(avx_cmp_ps_256, INTR_TYPE_3OP, X86ISD::CMPP, 0),
X86_INTRINSIC_DATA(avx_cvt_pd2_ps_256,CVTPD2PS, ISD::FP_ROUND, 0),
X86_INTRINSIC_DATA(avx_cvt_pd2_ps_256,INTR_TYPE_1OP, X86ISD::VFPROUND, 0),
X86_INTRINSIC_DATA(avx_cvt_pd2dq_256, INTR_TYPE_1OP, X86ISD::CVTP2SI, 0),
X86_INTRINSIC_DATA(avx_cvt_ps2dq_256, INTR_TYPE_1OP, X86ISD::CVTP2SI, 0),
X86_INTRINSIC_DATA(avx_cvtt_pd2dq_256,INTR_TYPE_1OP, X86ISD::CVTTP2SI, 0),
@ -515,8 +515,8 @@ static const IntrinsicData IntrinsicsWithoutChain[] = {
X86ISD::CVTP2SI, X86ISD::CVTP2SI_RND),
X86_INTRINSIC_DATA(avx512_mask_cvtpd2ps, CVTPD2PS_MASK,
X86ISD::VFPROUND, X86ISD::VMFPROUND),
X86_INTRINSIC_DATA(avx512_mask_cvtpd2ps_512, CVTPD2PS_RND_MASK,
ISD::FP_ROUND, X86ISD::VFPROUND_RND),
X86_INTRINSIC_DATA(avx512_mask_cvtpd2ps_512, INTR_TYPE_1OP_MASK,
X86ISD::VFPROUND, X86ISD::VFPROUND_RND),
X86_INTRINSIC_DATA(avx512_mask_cvtpd2qq_128, INTR_TYPE_1OP_MASK,
X86ISD::CVTP2SI, 0),
X86_INTRINSIC_DATA(avx512_mask_cvtpd2qq_256, INTR_TYPE_1OP_MASK,