#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/VariadicFunction.h"
-#include "llvm/ADT/VectorExtras.h"
#include "llvm/Support/CallSite.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Dwarf.h"
if (Subtarget->is64Bit()) {
setOperationAction(ISD::UINT_TO_FP , MVT::i32 , Promote);
- setOperationAction(ISD::UINT_TO_FP , MVT::i64 , Expand);
+ setOperationAction(ISD::UINT_TO_FP , MVT::i64 , Custom);
} else if (!TM.Options.UseSoftFloat) {
// We have an algorithm for SSE2->double, and we turn this into a
// 64-bit FILD followed by conditional FADD for other targets.
setOperationAction(ISD::SINT_TO_FP, MVT::v4i32, Legal);
}
- if (Subtarget->hasSSE41orAVX()) {
+ if (Subtarget->hasSSE41()) {
setOperationAction(ISD::FFLOOR, MVT::f32, Legal);
setOperationAction(ISD::FCEIL, MVT::f32, Legal);
setOperationAction(ISD::FTRUNC, MVT::f32, Legal);
}
}
- if (Subtarget->hasSSE42orAVX())
+ if (Subtarget->hasSSE42())
setOperationAction(ISD::SETCC, MVT::v2i64, Custom);
if (!TM.Options.UseSoftFloat && Subtarget->hasAVX()) {
/// isPALIGNRMask - Return true if the node specifies a shuffle of elements that
/// is suitable for input to PALIGNR.
static bool isPALIGNRMask(const SmallVectorImpl<int> &Mask, EVT VT,
- bool hasSSSE3OrAVX) {
+ bool hasSSSE3) {
int i, e = VT.getVectorNumElements();
if (VT.getSizeInBits() != 128)
return false;
// Do not handle v2i64 / v2f64 shuffles with palignr.
- if (e < 4 || !hasSSSE3OrAVX)
+ if (e < 4 || !hasSSSE3)
return false;
for (i = 0; i != e; ++i)
/// Masks to match: <1, 1, 3, 3> or <1, 1, 3, 3, 5, 5, 7, 7>
bool X86::isMOVSHDUPMask(ShuffleVectorSDNode *N,
const X86Subtarget *Subtarget) {
- if (!Subtarget->hasSSE3orAVX())
+ if (!Subtarget->hasSSE3())
return false;
// The second vector must be undef
/// Masks to match: <0, 0, 2, 2> or <0, 0, 2, 2, 4, 4, 6, 6>
bool X86::isMOVSLDUPMask(ShuffleVectorSDNode *N,
const X86Subtarget *Subtarget) {
- if (!Subtarget->hasSSE3orAVX())
+ if (!Subtarget->hasSSE3())
return false;
// The second vector must be undef
return LD;
// For SSE 4.1, use insertps to put the high elements into the low element.
- if (getSubtarget()->hasSSE41orAVX()) {
+ if (getSubtarget()->hasSSE41()) {
SDValue Result;
if (Op.getOperand(0).getOpcode() != ISD::UNDEF)
Result = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, VT, Op.getOperand(0));
// quads, disable the next transformation since it does not help SSSE3.
bool V1Used = InputQuads[0] || InputQuads[1];
bool V2Used = InputQuads[2] || InputQuads[3];
- if (Subtarget->hasSSSE3orAVX()) {
+ if (Subtarget->hasSSSE3()) {
if (InputQuads.count() == 2 && V1Used && V2Used) {
BestLoQuad = InputQuads.find_first();
BestHiQuad = InputQuads.find_next(BestLoQuad);
// If we have SSSE3, and all words of the result are from 1 input vector,
// case 2 is generated, otherwise case 3 is generated. If no SSSE3
// is present, fall back to case 4.
- if (Subtarget->hasSSSE3orAVX()) {
+ if (Subtarget->hasSSSE3()) {
SmallVector<SDValue,16> pshufbMask;
// If we have elements from both input vectors, set the high bit of the
NewV = DAG.getVectorShuffle(MVT::v8i16, dl, NewV, DAG.getUNDEF(MVT::v8i16),
&MaskV[0]);
- if (NewV.getOpcode() == ISD::VECTOR_SHUFFLE && Subtarget->hasSSSE3orAVX())
+ if (NewV.getOpcode() == ISD::VECTOR_SHUFFLE && Subtarget->hasSSSE3())
NewV = getTargetShuffleNode(X86ISD::PSHUFLW, dl, MVT::v8i16,
NewV.getOperand(0),
X86::getShufflePSHUFLWImmediate(NewV.getNode()),
NewV = DAG.getVectorShuffle(MVT::v8i16, dl, NewV, DAG.getUNDEF(MVT::v8i16),
&MaskV[0]);
- if (NewV.getOpcode() == ISD::VECTOR_SHUFFLE && Subtarget->hasSSSE3orAVX())
+ if (NewV.getOpcode() == ISD::VECTOR_SHUFFLE && Subtarget->hasSSSE3())
NewV = getTargetShuffleNode(X86ISD::PSHUFHW, dl, MVT::v8i16,
NewV.getOperand(0),
X86::getShufflePSHUFHWImmediate(NewV.getNode()),
}
// If SSSE3, use 1 pshufb instruction per vector with elements in the result.
- if (TLI.getSubtarget()->hasSSSE3orAVX()) {
+ if (TLI.getSubtarget()->hasSSSE3()) {
SmallVector<SDValue,16> pshufbMask;
// If all result elements are from one input vector, then only translate
if (OptForSize && X86::isUNPCKH_v_undef_Mask(SVOp, HasAVX2))
return getTargetShuffleNode(X86ISD::UNPCKH, dl, VT, V1, V1, DAG);
- if (X86::isMOVDDUPMask(SVOp) && Subtarget->hasSSE3orAVX() &&
+ if (X86::isMOVDDUPMask(SVOp) && Subtarget->hasSSE3() &&
V2IsUndef && RelaxedMayFoldVectorLoad(V1))
return getMOVDDup(Op, dl, V1, DAG);
// inlined here right now to enable us to directly emit target specific
// nodes, and remove one by one until they don't return Op anymore.
- if (isPALIGNRMask(M, VT, Subtarget->hasSSSE3orAVX()))
+ if (isPALIGNRMask(M, VT, Subtarget->hasSSSE3()))
return getTargetShuffleNode(X86ISD::PALIGN, dl, VT, V1, V2,
getShufflePALIGNRImmediate(SVOp),
DAG);
assert(Vec.getValueSizeInBits() <= 128 && "Unexpected vector length");
- if (Subtarget->hasSSE41orAVX()) {
+ if (Subtarget->hasSSE41()) {
SDValue Res = LowerEXTRACT_VECTOR_ELT_SSE4(Op, DAG);
if (Res.getNode())
return Res;
return Insert128BitVector(N0, V, Ins128Idx, DAG, dl);
}
- if (Subtarget->hasSSE41orAVX())
+ if (Subtarget->hasSSE41())
return LowerINSERT_VECTOR_ELT_SSE4(Op, DAG);
if (EltVT == MVT::i8)
// LowerUINT_TO_FP_i64 - 64-bit unsigned integer to double expansion.
SDValue X86TargetLowering::LowerUINT_TO_FP_i64(SDValue Op,
SelectionDAG &DAG) const {
- // This algorithm is not obvious. Here it is in C code, more or less:
+ // This algorithm is not obvious. Here it is what we're trying to output:
/*
- double uint64_to_double( uint32_t hi, uint32_t lo ) {
- static const __m128i exp = { 0x4330000045300000ULL, 0 };
- static const __m128d bias = { 0x1.0p84, 0x1.0p52 };
-
- // Copy ints to xmm registers.
- __m128i xh = _mm_cvtsi32_si128( hi );
- __m128i xl = _mm_cvtsi32_si128( lo );
-
- // Combine into low half of a single xmm register.
- __m128i x = _mm_unpacklo_epi32( xh, xl );
- __m128d d;
- double sd;
-
- // Merge in appropriate exponents to give the integer bits the right
- // magnitude.
- x = _mm_unpacklo_epi32( x, exp );
-
- // Subtract away the biases to deal with the IEEE-754 double precision
- // implicit 1.
- d = _mm_sub_pd( (__m128d) x, bias );
-
- // All conversions up to here are exact. The correctly rounded result is
- // calculated using the current rounding mode using the following
- // horizontal add.
- d = _mm_add_sd( d, _mm_unpackhi_pd( d, d ) );
- _mm_store_sd( &sd, d ); // Because we are returning doubles in XMM, this
- // store doesn't really need to be here (except
- // maybe to zero the other double)
- return sd;
- }
+ movq %rax, %xmm0
+ punpckldq (c0), %xmm0 // c0: (uint4){ 0x43300000U, 0x45300000U, 0U, 0U }
+ subpd (c1), %xmm0 // c1: (double2){ 0x1.0p52, 0x1.0p52 * 0x1.0p32 }
+ #ifdef __SSE3__
+ haddpd %xmm0, %xmm0
+ #else
+ pshufd $0x4e, %xmm0, %xmm1
+ addpd %xmm1, %xmm0
+ #endif
*/
DebugLoc dl = Op.getDebugLoc();
// Build some magic constants.
SmallVector<Constant*,4> CV0;
- CV0.push_back(ConstantInt::get(*Context, APInt(32, 0x45300000)));
CV0.push_back(ConstantInt::get(*Context, APInt(32, 0x43300000)));
+ CV0.push_back(ConstantInt::get(*Context, APInt(32, 0x45300000)));
CV0.push_back(ConstantInt::get(*Context, APInt(32, 0)));
CV0.push_back(ConstantInt::get(*Context, APInt(32, 0)));
Constant *C0 = ConstantVector::get(CV0);
SDValue CPIdx0 = DAG.getConstantPool(C0, getPointerTy(), 16);
SmallVector<Constant*,2> CV1;
- CV1.push_back(
- ConstantFP::get(*Context, APFloat(APInt(64, 0x4530000000000000ULL))));
CV1.push_back(
ConstantFP::get(*Context, APFloat(APInt(64, 0x4330000000000000ULL))));
+ CV1.push_back(
+ ConstantFP::get(*Context, APFloat(APInt(64, 0x4530000000000000ULL))));
Constant *C1 = ConstantVector::get(CV1);
SDValue CPIdx1 = DAG.getConstantPool(C1, getPointerTy(), 16);
- SDValue XR1 = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, MVT::v4i32,
- DAG.getNode(ISD::EXTRACT_ELEMENT, dl, MVT::i32,
- Op.getOperand(0),
- DAG.getIntPtrConstant(1)));
- SDValue XR2 = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, MVT::v4i32,
- DAG.getNode(ISD::EXTRACT_ELEMENT, dl, MVT::i32,
- Op.getOperand(0),
- DAG.getIntPtrConstant(0)));
- SDValue Unpck1 = getUnpackl(DAG, dl, MVT::v4i32, XR1, XR2);
+ // Load the 64-bit value into an XMM register.
+ SDValue XR1 = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, MVT::v2i64,
+ Op.getOperand(0));
SDValue CLod0 = DAG.getLoad(MVT::v4i32, dl, DAG.getEntryNode(), CPIdx0,
MachinePointerInfo::getConstantPool(),
false, false, false, 16);
- SDValue Unpck2 = getUnpackl(DAG, dl, MVT::v4i32, Unpck1, CLod0);
- SDValue XR2F = DAG.getNode(ISD::BITCAST, dl, MVT::v2f64, Unpck2);
+ SDValue Unpck1 = getUnpackl(DAG, dl, MVT::v4i32,
+ DAG.getNode(ISD::BITCAST, dl, MVT::v4i32, XR1),
+ CLod0);
+
SDValue CLod1 = DAG.getLoad(MVT::v2f64, dl, CLod0.getValue(1), CPIdx1,
MachinePointerInfo::getConstantPool(),
false, false, false, 16);
+ SDValue XR2F = DAG.getNode(ISD::BITCAST, dl, MVT::v2f64, Unpck1);
SDValue Sub = DAG.getNode(ISD::FSUB, dl, MVT::v2f64, XR2F, CLod1);
+ SDValue Result;
+
+ if (Subtarget->hasSSE3()) {
+ // FIXME: The 'haddpd' instruction may be slower than 'movhlps + addsd'.
+ Result = DAG.getNode(X86ISD::FHADD, dl, MVT::v2f64, Sub, Sub);
+ } else {
+ SDValue S2F = DAG.getNode(ISD::BITCAST, dl, MVT::v4i32, Sub);
+ SDValue Shuffle = getTargetShuffleNode(X86ISD::PSHUFD, dl, MVT::v4i32,
+ S2F, 0x4E, DAG);
+ Result = DAG.getNode(ISD::FADD, dl, MVT::v2f64,
+ DAG.getNode(ISD::BITCAST, dl, MVT::v2f64, Shuffle),
+ Sub);
+ }
- // Add the halves; easiest way is to swap them into another reg first.
- int ShufMask[2] = { 1, -1 };
- SDValue Shuf = DAG.getVectorShuffle(MVT::v2f64, dl, Sub,
- DAG.getUNDEF(MVT::v2f64), ShufMask);
- SDValue Add = DAG.getNode(ISD::FADD, dl, MVT::v2f64, Shuf, Sub);
- return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, MVT::f64, Add,
+ return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, MVT::f64, Result,
DAG.getIntPtrConstant(0));
}
return LowerUINT_TO_FP_i64(Op, DAG);
else if (SrcVT == MVT::i32 && X86ScalarSSEf64)
return LowerUINT_TO_FP_i32(Op, DAG);
+ else if (SrcVT == MVT::i64 && DstVT == MVT::f32)
+ return SDValue();
// Make a 64-bit buffer, and use it to build an FILD.
SDValue StackSlot = DAG.CreateStackTemporary(MVT::i64);
// Check that the operation in question is available (most are plain SSE2,
// but PCMPGTQ and PCMPEQQ have different requirements).
- if (Opc == X86ISD::PCMPGTQ && !Subtarget->hasSSE42orAVX())
+ if (Opc == X86ISD::PCMPGTQ && !Subtarget->hasSSE42())
return SDValue();
- if (Opc == X86ISD::PCMPEQQ && !Subtarget->hasSSE41orAVX())
+ if (Opc == X86ISD::PCMPEQQ && !Subtarget->hasSSE41())
return SDValue();
// Since SSE has no unsigned integer comparisons, we need to flip the sign
isPSHUFDMask(M, VT) ||
isPSHUFHWMask(M, VT) ||
isPSHUFLWMask(M, VT) ||
- isPALIGNRMask(M, VT, Subtarget->hasSSSE3orAVX()) ||
+ isPALIGNRMask(M, VT, Subtarget->hasSSSE3()) ||
isUNPCKLMask(M, VT, Subtarget->hasAVX2()) ||
isUNPCKHMask(M, VT, Subtarget->hasAVX2()) ||
isUNPCKL_v_undef_Mask(M, VT, Subtarget->hasAVX2()) ||
MachineBasicBlock *
X86TargetLowering::EmitPCMP(MachineInstr *MI, MachineBasicBlock *BB,
unsigned numArgs, bool memArg) const {
- assert(Subtarget->hasSSE42orAVX() &&
+ assert(Subtarget->hasSSE42() &&
"Target must have SSE4.2 or AVX features enabled");
DebugLoc dl = MI->getDebugLoc();
if (Cond.getOpcode() == ISD::SETCC && VT.isFloatingPoint() &&
VT != MVT::f80 && DAG.getTargetLoweringInfo().isTypeLegal(VT) &&
(Subtarget->hasXMMInt() ||
- (Subtarget->hasSSE1() && VT.getScalarType() == MVT::f32))) {
+ (Subtarget->hasXMM() && VT.getScalarType() == MVT::f32))) {
ISD::CondCode CC = cast<CondCodeSDNode>(Cond.getOperand(2))->get();
unsigned Opcode = 0;
// look for psign/blend
if (VT == MVT::v2i64 || VT == MVT::v4i64) {
- if (!Subtarget->hasSSSE3orAVX() ||
+ if (!Subtarget->hasSSSE3() ||
(VT == MVT::v4i64 && !Subtarget->hasAVX2()))
return SDValue();
return DAG.getNode(ISD::BITCAST, DL, VT, Sign);
}
// PBLENDVB only available on SSE 4.1
- if (!Subtarget->hasSSE41orAVX())
+ if (!Subtarget->hasSSE41())
return SDValue();
EVT BlendVT = (VT == MVT::v4i64) ? MVT::v32i8 : MVT::v16i8;
SDValue RHS = N->getOperand(1);
// Try to synthesize horizontal adds from adds of shuffles.
- if (((Subtarget->hasSSE3orAVX() && (VT == MVT::v4f32 || VT == MVT::v2f64)) ||
+ if (((Subtarget->hasSSE3() && (VT == MVT::v4f32 || VT == MVT::v2f64)) ||
(Subtarget->hasAVX() && (VT == MVT::v8f32 || VT == MVT::v4f64))) &&
isHorizontalBinOp(LHS, RHS, true))
return DAG.getNode(X86ISD::FHADD, N->getDebugLoc(), VT, LHS, RHS);
SDValue RHS = N->getOperand(1);
// Try to synthesize horizontal subs from subs of shuffles.
- if (((Subtarget->hasSSE3orAVX() && (VT == MVT::v4f32 || VT == MVT::v2f64)) ||
+ if (((Subtarget->hasSSE3() && (VT == MVT::v4f32 || VT == MVT::v2f64)) ||
(Subtarget->hasAVX() && (VT == MVT::v8f32 || VT == MVT::v4f64))) &&
isHorizontalBinOp(LHS, RHS, false))
return DAG.getNode(X86ISD::FHSUB, N->getDebugLoc(), VT, LHS, RHS);
SDValue Op1 = N->getOperand(1);
// Try to synthesize horizontal adds from adds of shuffles.
- if (((Subtarget->hasSSSE3orAVX() && (VT == MVT::v8i16 || VT == MVT::v4i32)) ||
+ if (((Subtarget->hasSSSE3() && (VT == MVT::v8i16 || VT == MVT::v4i32)) ||
(Subtarget->hasAVX2() && (VT == MVT::v16i16 || MVT::v8i32))) &&
isHorizontalBinOp(Op0, Op1, true))
return DAG.getNode(X86ISD::HADD, N->getDebugLoc(), VT, Op0, Op1);
// Try to synthesize horizontal adds from adds of shuffles.
EVT VT = N->getValueType(0);
- if (((Subtarget->hasSSSE3orAVX() && (VT == MVT::v8i16 || VT == MVT::v4i32)) ||
+ if (((Subtarget->hasSSSE3() && (VT == MVT::v8i16 || VT == MVT::v4i32)) ||
(Subtarget->hasAVX2() && (VT == MVT::v16i16 || VT == MVT::v8i32))) &&
isHorizontalBinOp(Op0, Op1, true))
return DAG.getNode(X86ISD::HSUB, N->getDebugLoc(), VT, Op0, Op1);
break;
case 'x':
case 'Y':
- if ((type->getPrimitiveSizeInBits() == 128) && Subtarget->hasXMM())
+ if (((type->getPrimitiveSizeInBits() == 128) && Subtarget->hasXMM()) ||
+ ((type->getPrimitiveSizeInBits() == 256) && Subtarget->hasAVX()))
weight = CW_Register;
break;
case 'I':
case 'Y': // SSE_REGS if SSE2 allowed
if (!Subtarget->hasXMMInt()) break;
// FALL THROUGH.
- case 'x': // SSE_REGS if SSE1 allowed
+ case 'x': // SSE_REGS if SSE1 allowed or AVX_REGS if AVX allowed
if (!Subtarget->hasXMM()) break;
switch (VT.getSimpleVT().SimpleTy) {
case MVT::v4f32:
case MVT::v2f64:
return std::make_pair(0U, X86::VR128RegisterClass);
+ // AVX types.
+ case MVT::v32i8:
+ case MVT::v16i16:
+ case MVT::v8i32:
+ case MVT::v4i64:
+ case MVT::v8f32:
+ case MVT::v4f64:
+ return std::make_pair(0U, X86::VR256RegisterClass);
+
}
break;
}
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