1 //===-------- LegalizeFloatTypes.cpp - Legalization of float types --------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements float type expansion and softening for LegalizeTypes.
11 // Softening is the act of turning a computation in an illegal floating point
12 // type into a computation in an integer type of the same size; also known as
13 // "soft float". For example, turning f32 arithmetic into operations using i32.
14 // The resulting integer value is the same as what you would get by performing
15 // the floating point operation and bitcasting the result to the integer type.
16 // Expansion is the act of changing a computation in an illegal type to be a
17 // computation in two identical registers of a smaller type. For example,
18 // implementing ppcf128 arithmetic in two f64 registers.
20 //===----------------------------------------------------------------------===//
22 #include "LegalizeTypes.h"
23 #include "llvm/Support/ErrorHandling.h"
24 #include "llvm/Support/raw_ostream.h"
27 #define DEBUG_TYPE "legalize-types"
29 /// GetFPLibCall - Return the right libcall for the given floating point type.
30 static RTLIB::Libcall GetFPLibCall(EVT VT,
31 RTLIB::Libcall Call_F32,
32 RTLIB::Libcall Call_F64,
33 RTLIB::Libcall Call_F80,
34 RTLIB::Libcall Call_F128,
35 RTLIB::Libcall Call_PPCF128) {
37 VT == MVT::f32 ? Call_F32 :
38 VT == MVT::f64 ? Call_F64 :
39 VT == MVT::f80 ? Call_F80 :
40 VT == MVT::f128 ? Call_F128 :
41 VT == MVT::ppcf128 ? Call_PPCF128 :
42 RTLIB::UNKNOWN_LIBCALL;
45 //===----------------------------------------------------------------------===//
46 // Result Float to Integer Conversion.
47 //===----------------------------------------------------------------------===//
49 void DAGTypeLegalizer::SoftenFloatResult(SDNode *N, unsigned ResNo) {
50 DEBUG(dbgs() << "Soften float result " << ResNo << ": "; N->dump(&DAG);
52 SDValue R = SDValue();
54 switch (N->getOpcode()) {
57 dbgs() << "SoftenFloatResult #" << ResNo << ": ";
58 N->dump(&DAG); dbgs() << "\n";
60 llvm_unreachable("Do not know how to soften the result of this operator!");
62 case ISD::MERGE_VALUES:R = SoftenFloatRes_MERGE_VALUES(N, ResNo); break;
63 case ISD::BITCAST: R = SoftenFloatRes_BITCAST(N); break;
64 case ISD::BUILD_PAIR: R = SoftenFloatRes_BUILD_PAIR(N); break;
66 R = SoftenFloatRes_ConstantFP(cast<ConstantFPSDNode>(N));
68 case ISD::EXTRACT_VECTOR_ELT:
69 R = SoftenFloatRes_EXTRACT_VECTOR_ELT(N); break;
70 case ISD::FABS: R = SoftenFloatRes_FABS(N); break;
71 case ISD::FADD: R = SoftenFloatRes_FADD(N); break;
72 case ISD::FCEIL: R = SoftenFloatRes_FCEIL(N); break;
73 case ISD::FCOPYSIGN: R = SoftenFloatRes_FCOPYSIGN(N); break;
74 case ISD::FCOS: R = SoftenFloatRes_FCOS(N); break;
75 case ISD::FDIV: R = SoftenFloatRes_FDIV(N); break;
76 case ISD::FEXP: R = SoftenFloatRes_FEXP(N); break;
77 case ISD::FEXP2: R = SoftenFloatRes_FEXP2(N); break;
78 case ISD::FFLOOR: R = SoftenFloatRes_FFLOOR(N); break;
79 case ISD::FLOG: R = SoftenFloatRes_FLOG(N); break;
80 case ISD::FLOG2: R = SoftenFloatRes_FLOG2(N); break;
81 case ISD::FLOG10: R = SoftenFloatRes_FLOG10(N); break;
82 case ISD::FMA: R = SoftenFloatRes_FMA(N); break;
83 case ISD::FMUL: R = SoftenFloatRes_FMUL(N); break;
84 case ISD::FNEARBYINT: R = SoftenFloatRes_FNEARBYINT(N); break;
85 case ISD::FNEG: R = SoftenFloatRes_FNEG(N); break;
86 case ISD::FP_EXTEND: R = SoftenFloatRes_FP_EXTEND(N); break;
87 case ISD::FP_ROUND: R = SoftenFloatRes_FP_ROUND(N); break;
88 case ISD::FP16_TO_FP: R = SoftenFloatRes_FP16_TO_FP(N); break;
89 case ISD::FPOW: R = SoftenFloatRes_FPOW(N); break;
90 case ISD::FPOWI: R = SoftenFloatRes_FPOWI(N); break;
91 case ISD::FREM: R = SoftenFloatRes_FREM(N); break;
92 case ISD::FRINT: R = SoftenFloatRes_FRINT(N); break;
93 case ISD::FROUND: R = SoftenFloatRes_FROUND(N); break;
94 case ISD::FSIN: R = SoftenFloatRes_FSIN(N); break;
95 case ISD::FSQRT: R = SoftenFloatRes_FSQRT(N); break;
96 case ISD::FSUB: R = SoftenFloatRes_FSUB(N); break;
97 case ISD::FTRUNC: R = SoftenFloatRes_FTRUNC(N); break;
98 case ISD::LOAD: R = SoftenFloatRes_LOAD(N); break;
99 case ISD::SELECT: R = SoftenFloatRes_SELECT(N); break;
100 case ISD::SELECT_CC: R = SoftenFloatRes_SELECT_CC(N); break;
101 case ISD::SINT_TO_FP:
102 case ISD::UINT_TO_FP: R = SoftenFloatRes_XINT_TO_FP(N); break;
103 case ISD::UNDEF: R = SoftenFloatRes_UNDEF(N); break;
104 case ISD::VAARG: R = SoftenFloatRes_VAARG(N); break;
107 // If R is null, the sub-method took care of registering the result.
109 SetSoftenedFloat(SDValue(N, ResNo), R);
112 SDValue DAGTypeLegalizer::SoftenFloatRes_BITCAST(SDNode *N) {
113 return BitConvertToInteger(N->getOperand(0));
116 SDValue DAGTypeLegalizer::SoftenFloatRes_MERGE_VALUES(SDNode *N,
118 SDValue Op = DisintegrateMERGE_VALUES(N, ResNo);
119 return BitConvertToInteger(Op);
122 SDValue DAGTypeLegalizer::SoftenFloatRes_BUILD_PAIR(SDNode *N) {
123 // Convert the inputs to integers, and build a new pair out of them.
124 return DAG.getNode(ISD::BUILD_PAIR, SDLoc(N),
125 TLI.getTypeToTransformTo(*DAG.getContext(),
127 BitConvertToInteger(N->getOperand(0)),
128 BitConvertToInteger(N->getOperand(1)));
131 SDValue DAGTypeLegalizer::SoftenFloatRes_ConstantFP(ConstantFPSDNode *N) {
132 return DAG.getConstant(N->getValueAPF().bitcastToAPInt(),
133 TLI.getTypeToTransformTo(*DAG.getContext(),
134 N->getValueType(0)));
137 SDValue DAGTypeLegalizer::SoftenFloatRes_EXTRACT_VECTOR_ELT(SDNode *N) {
138 SDValue NewOp = BitConvertVectorToIntegerVector(N->getOperand(0));
139 return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, SDLoc(N),
140 NewOp.getValueType().getVectorElementType(),
141 NewOp, N->getOperand(1));
144 SDValue DAGTypeLegalizer::SoftenFloatRes_FABS(SDNode *N) {
145 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
146 unsigned Size = NVT.getSizeInBits();
148 // Mask = ~(1 << (Size-1))
149 APInt API = APInt::getAllOnesValue(Size);
150 API.clearBit(Size-1);
151 SDValue Mask = DAG.getConstant(API, NVT);
152 SDValue Op = GetSoftenedFloat(N->getOperand(0));
153 return DAG.getNode(ISD::AND, SDLoc(N), NVT, Op, Mask);
156 SDValue DAGTypeLegalizer::SoftenFloatRes_FADD(SDNode *N) {
157 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
158 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)),
159 GetSoftenedFloat(N->getOperand(1)) };
160 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
166 NVT, Ops, 2, false, SDLoc(N)).first;
169 SDValue DAGTypeLegalizer::SoftenFloatRes_FCEIL(SDNode *N) {
170 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
171 SDValue Op = GetSoftenedFloat(N->getOperand(0));
172 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
177 RTLIB::CEIL_PPCF128),
178 NVT, &Op, 1, false, SDLoc(N)).first;
181 SDValue DAGTypeLegalizer::SoftenFloatRes_FCOPYSIGN(SDNode *N) {
182 SDValue LHS = GetSoftenedFloat(N->getOperand(0));
183 SDValue RHS = BitConvertToInteger(N->getOperand(1));
186 EVT LVT = LHS.getValueType();
187 EVT RVT = RHS.getValueType();
189 unsigned LSize = LVT.getSizeInBits();
190 unsigned RSize = RVT.getSizeInBits();
192 // First get the sign bit of second operand.
193 SDValue SignBit = DAG.getNode(ISD::SHL, dl, RVT, DAG.getConstant(1, RVT),
194 DAG.getConstant(RSize - 1,
195 TLI.getShiftAmountTy(RVT)));
196 SignBit = DAG.getNode(ISD::AND, dl, RVT, RHS, SignBit);
198 // Shift right or sign-extend it if the two operands have different types.
199 int SizeDiff = RVT.getSizeInBits() - LVT.getSizeInBits();
201 SignBit = DAG.getNode(ISD::SRL, dl, RVT, SignBit,
202 DAG.getConstant(SizeDiff,
203 TLI.getShiftAmountTy(SignBit.getValueType())));
204 SignBit = DAG.getNode(ISD::TRUNCATE, dl, LVT, SignBit);
205 } else if (SizeDiff < 0) {
206 SignBit = DAG.getNode(ISD::ANY_EXTEND, dl, LVT, SignBit);
207 SignBit = DAG.getNode(ISD::SHL, dl, LVT, SignBit,
208 DAG.getConstant(-SizeDiff,
209 TLI.getShiftAmountTy(SignBit.getValueType())));
212 // Clear the sign bit of the first operand.
213 SDValue Mask = DAG.getNode(ISD::SHL, dl, LVT, DAG.getConstant(1, LVT),
214 DAG.getConstant(LSize - 1,
215 TLI.getShiftAmountTy(LVT)));
216 Mask = DAG.getNode(ISD::SUB, dl, LVT, Mask, DAG.getConstant(1, LVT));
217 LHS = DAG.getNode(ISD::AND, dl, LVT, LHS, Mask);
219 // Or the value with the sign bit.
220 return DAG.getNode(ISD::OR, dl, LVT, LHS, SignBit);
223 SDValue DAGTypeLegalizer::SoftenFloatRes_FCOS(SDNode *N) {
224 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
225 SDValue Op = GetSoftenedFloat(N->getOperand(0));
226 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
232 NVT, &Op, 1, false, SDLoc(N)).first;
235 SDValue DAGTypeLegalizer::SoftenFloatRes_FDIV(SDNode *N) {
236 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
237 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)),
238 GetSoftenedFloat(N->getOperand(1)) };
239 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
245 NVT, Ops, 2, false, SDLoc(N)).first;
248 SDValue DAGTypeLegalizer::SoftenFloatRes_FEXP(SDNode *N) {
249 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
250 SDValue Op = GetSoftenedFloat(N->getOperand(0));
251 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
257 NVT, &Op, 1, false, SDLoc(N)).first;
260 SDValue DAGTypeLegalizer::SoftenFloatRes_FEXP2(SDNode *N) {
261 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
262 SDValue Op = GetSoftenedFloat(N->getOperand(0));
263 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
268 RTLIB::EXP2_PPCF128),
269 NVT, &Op, 1, false, SDLoc(N)).first;
272 SDValue DAGTypeLegalizer::SoftenFloatRes_FFLOOR(SDNode *N) {
273 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
274 SDValue Op = GetSoftenedFloat(N->getOperand(0));
275 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
280 RTLIB::FLOOR_PPCF128),
281 NVT, &Op, 1, false, SDLoc(N)).first;
284 SDValue DAGTypeLegalizer::SoftenFloatRes_FLOG(SDNode *N) {
285 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
286 SDValue Op = GetSoftenedFloat(N->getOperand(0));
287 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
293 NVT, &Op, 1, false, SDLoc(N)).first;
296 SDValue DAGTypeLegalizer::SoftenFloatRes_FLOG2(SDNode *N) {
297 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
298 SDValue Op = GetSoftenedFloat(N->getOperand(0));
299 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
304 RTLIB::LOG2_PPCF128),
305 NVT, &Op, 1, false, SDLoc(N)).first;
308 SDValue DAGTypeLegalizer::SoftenFloatRes_FLOG10(SDNode *N) {
309 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
310 SDValue Op = GetSoftenedFloat(N->getOperand(0));
311 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
316 RTLIB::LOG10_PPCF128),
317 NVT, &Op, 1, false, SDLoc(N)).first;
320 SDValue DAGTypeLegalizer::SoftenFloatRes_FMA(SDNode *N) {
321 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
322 SDValue Ops[3] = { GetSoftenedFloat(N->getOperand(0)),
323 GetSoftenedFloat(N->getOperand(1)),
324 GetSoftenedFloat(N->getOperand(2)) };
325 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
331 NVT, Ops, 3, false, SDLoc(N)).first;
334 SDValue DAGTypeLegalizer::SoftenFloatRes_FMUL(SDNode *N) {
335 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
336 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)),
337 GetSoftenedFloat(N->getOperand(1)) };
338 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
344 NVT, Ops, 2, false, SDLoc(N)).first;
347 SDValue DAGTypeLegalizer::SoftenFloatRes_FNEARBYINT(SDNode *N) {
348 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
349 SDValue Op = GetSoftenedFloat(N->getOperand(0));
350 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
351 RTLIB::NEARBYINT_F32,
352 RTLIB::NEARBYINT_F64,
353 RTLIB::NEARBYINT_F80,
354 RTLIB::NEARBYINT_F128,
355 RTLIB::NEARBYINT_PPCF128),
356 NVT, &Op, 1, false, SDLoc(N)).first;
359 SDValue DAGTypeLegalizer::SoftenFloatRes_FNEG(SDNode *N) {
360 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
361 // Expand Y = FNEG(X) -> Y = SUB -0.0, X
362 SDValue Ops[2] = { DAG.getConstantFP(-0.0, N->getValueType(0)),
363 GetSoftenedFloat(N->getOperand(0)) };
364 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
370 NVT, Ops, 2, false, SDLoc(N)).first;
373 SDValue DAGTypeLegalizer::SoftenFloatRes_FP_EXTEND(SDNode *N) {
374 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
375 SDValue Op = N->getOperand(0);
377 // There's only a libcall for f16 -> f32, so proceed in two stages. Also, it's
378 // entirely possible for both f16 and f32 to be legal, so use the fully
379 // hard-float FP_EXTEND rather than FP16_TO_FP.
380 if (Op.getValueType() == MVT::f16 && N->getValueType(0) != MVT::f32) {
381 Op = DAG.getNode(ISD::FP_EXTEND, SDLoc(N), MVT::f32, Op);
382 if (getTypeAction(MVT::f32) == TargetLowering::TypeSoftenFloat)
383 SoftenFloatResult(Op.getNode(), 0);
386 RTLIB::Libcall LC = RTLIB::getFPEXT(Op.getValueType(), N->getValueType(0));
387 if (getTypeAction(Op.getValueType()) == TargetLowering::TypeSoftenFloat)
388 Op = GetSoftenedFloat(Op);
389 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_EXTEND!");
390 return TLI.makeLibCall(DAG, LC, NVT, &Op, 1, false, SDLoc(N)).first;
393 // FIXME: Should we just use 'normal' FP_EXTEND / FP_TRUNC instead of special
395 SDValue DAGTypeLegalizer::SoftenFloatRes_FP16_TO_FP(SDNode *N) {
396 EVT MidVT = TLI.getTypeToTransformTo(*DAG.getContext(), MVT::f32);
397 SDValue Op = N->getOperand(0);
398 SDValue Res32 = TLI.makeLibCall(DAG, RTLIB::FPEXT_F16_F32, MidVT, &Op, 1,
399 false, SDLoc(N)).first;
400 if (N->getValueType(0) == MVT::f32)
403 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
404 RTLIB::Libcall LC = RTLIB::getFPEXT(MVT::f32, N->getValueType(0));
405 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_EXTEND!");
406 return TLI.makeLibCall(DAG, LC, NVT, &Res32, 1, false, SDLoc(N)).first;
409 SDValue DAGTypeLegalizer::SoftenFloatRes_FP_ROUND(SDNode *N) {
410 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
411 SDValue Op = N->getOperand(0);
412 if (N->getValueType(0) == MVT::f16) {
413 // Semi-soften first, to FP_TO_FP16, so that targets which support f16 as a
414 // storage-only type get a chance to select things.
415 return DAG.getNode(ISD::FP_TO_FP16, SDLoc(N), NVT, Op);
418 RTLIB::Libcall LC = RTLIB::getFPROUND(Op.getValueType(), N->getValueType(0));
419 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_ROUND!");
420 return TLI.makeLibCall(DAG, LC, NVT, &Op, 1, false, SDLoc(N)).first;
423 SDValue DAGTypeLegalizer::SoftenFloatRes_FPOW(SDNode *N) {
424 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
425 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)),
426 GetSoftenedFloat(N->getOperand(1)) };
427 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
433 NVT, Ops, 2, false, SDLoc(N)).first;
436 SDValue DAGTypeLegalizer::SoftenFloatRes_FPOWI(SDNode *N) {
437 assert(N->getOperand(1).getValueType() == MVT::i32 &&
438 "Unsupported power type!");
439 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
440 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)), N->getOperand(1) };
441 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
446 RTLIB::POWI_PPCF128),
447 NVT, Ops, 2, false, SDLoc(N)).first;
450 SDValue DAGTypeLegalizer::SoftenFloatRes_FREM(SDNode *N) {
451 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
452 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)),
453 GetSoftenedFloat(N->getOperand(1)) };
454 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
460 NVT, Ops, 2, false, SDLoc(N)).first;
463 SDValue DAGTypeLegalizer::SoftenFloatRes_FRINT(SDNode *N) {
464 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
465 SDValue Op = GetSoftenedFloat(N->getOperand(0));
466 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
471 RTLIB::RINT_PPCF128),
472 NVT, &Op, 1, false, SDLoc(N)).first;
475 SDValue DAGTypeLegalizer::SoftenFloatRes_FROUND(SDNode *N) {
476 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
477 SDValue Op = GetSoftenedFloat(N->getOperand(0));
478 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
483 RTLIB::ROUND_PPCF128),
484 NVT, &Op, 1, false, SDLoc(N)).first;
487 SDValue DAGTypeLegalizer::SoftenFloatRes_FSIN(SDNode *N) {
488 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
489 SDValue Op = GetSoftenedFloat(N->getOperand(0));
490 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
496 NVT, &Op, 1, false, SDLoc(N)).first;
499 SDValue DAGTypeLegalizer::SoftenFloatRes_FSQRT(SDNode *N) {
500 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
501 SDValue Op = GetSoftenedFloat(N->getOperand(0));
502 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
507 RTLIB::SQRT_PPCF128),
508 NVT, &Op, 1, false, SDLoc(N)).first;
511 SDValue DAGTypeLegalizer::SoftenFloatRes_FSUB(SDNode *N) {
512 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
513 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)),
514 GetSoftenedFloat(N->getOperand(1)) };
515 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
521 NVT, Ops, 2, false, SDLoc(N)).first;
524 SDValue DAGTypeLegalizer::SoftenFloatRes_FTRUNC(SDNode *N) {
525 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
526 if (N->getValueType(0) == MVT::f16)
527 return DAG.getNode(ISD::FP_TO_FP16, SDLoc(N), NVT, N->getOperand(0));
529 SDValue Op = GetSoftenedFloat(N->getOperand(0));
530 return TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
535 RTLIB::TRUNC_PPCF128),
536 NVT, &Op, 1, false, SDLoc(N)).first;
539 SDValue DAGTypeLegalizer::SoftenFloatRes_LOAD(SDNode *N) {
540 LoadSDNode *L = cast<LoadSDNode>(N);
541 EVT VT = N->getValueType(0);
542 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT);
546 if (L->getExtensionType() == ISD::NON_EXTLOAD) {
547 NewL = DAG.getLoad(L->getAddressingMode(), L->getExtensionType(),
548 NVT, dl, L->getChain(), L->getBasePtr(), L->getOffset(),
549 L->getPointerInfo(), NVT, L->isVolatile(),
550 L->isNonTemporal(), false, L->getAlignment(),
552 // Legalized the chain result - switch anything that used the old chain to
554 ReplaceValueWith(SDValue(N, 1), NewL.getValue(1));
558 // Do a non-extending load followed by FP_EXTEND.
559 NewL = DAG.getLoad(L->getAddressingMode(), ISD::NON_EXTLOAD,
560 L->getMemoryVT(), dl, L->getChain(),
561 L->getBasePtr(), L->getOffset(), L->getPointerInfo(),
562 L->getMemoryVT(), L->isVolatile(),
563 L->isNonTemporal(), false, L->getAlignment(),
565 // Legalized the chain result - switch anything that used the old chain to
567 ReplaceValueWith(SDValue(N, 1), NewL.getValue(1));
568 return BitConvertToInteger(DAG.getNode(ISD::FP_EXTEND, dl, VT, NewL));
571 SDValue DAGTypeLegalizer::SoftenFloatRes_SELECT(SDNode *N) {
572 SDValue LHS = GetSoftenedFloat(N->getOperand(1));
573 SDValue RHS = GetSoftenedFloat(N->getOperand(2));
574 return DAG.getSelect(SDLoc(N),
575 LHS.getValueType(), N->getOperand(0), LHS, RHS);
578 SDValue DAGTypeLegalizer::SoftenFloatRes_SELECT_CC(SDNode *N) {
579 SDValue LHS = GetSoftenedFloat(N->getOperand(2));
580 SDValue RHS = GetSoftenedFloat(N->getOperand(3));
581 return DAG.getNode(ISD::SELECT_CC, SDLoc(N),
582 LHS.getValueType(), N->getOperand(0),
583 N->getOperand(1), LHS, RHS, N->getOperand(4));
586 SDValue DAGTypeLegalizer::SoftenFloatRes_UNDEF(SDNode *N) {
587 return DAG.getUNDEF(TLI.getTypeToTransformTo(*DAG.getContext(),
588 N->getValueType(0)));
591 SDValue DAGTypeLegalizer::SoftenFloatRes_VAARG(SDNode *N) {
592 SDValue Chain = N->getOperand(0); // Get the chain.
593 SDValue Ptr = N->getOperand(1); // Get the pointer.
594 EVT VT = N->getValueType(0);
595 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT);
599 NewVAARG = DAG.getVAArg(NVT, dl, Chain, Ptr, N->getOperand(2),
600 N->getConstantOperandVal(3));
602 // Legalized the chain result - switch anything that used the old chain to
604 ReplaceValueWith(SDValue(N, 1), NewVAARG.getValue(1));
608 SDValue DAGTypeLegalizer::SoftenFloatRes_XINT_TO_FP(SDNode *N) {
609 bool Signed = N->getOpcode() == ISD::SINT_TO_FP;
610 EVT SVT = N->getOperand(0).getValueType();
611 EVT RVT = N->getValueType(0);
615 // If the input is not legal, eg: i1 -> fp, then it needs to be promoted to
616 // a larger type, eg: i8 -> fp. Even if it is legal, no libcall may exactly
617 // match. Look for an appropriate libcall.
618 RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL;
619 for (unsigned t = MVT::FIRST_INTEGER_VALUETYPE;
620 t <= MVT::LAST_INTEGER_VALUETYPE && LC == RTLIB::UNKNOWN_LIBCALL; ++t) {
621 NVT = (MVT::SimpleValueType)t;
622 // The source needs to big enough to hold the operand.
624 LC = Signed ? RTLIB::getSINTTOFP(NVT, RVT):RTLIB::getUINTTOFP (NVT, RVT);
626 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported XINT_TO_FP!");
628 // Sign/zero extend the argument if the libcall takes a larger type.
629 SDValue Op = DAG.getNode(Signed ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, dl,
630 NVT, N->getOperand(0));
631 return TLI.makeLibCall(DAG, LC,
632 TLI.getTypeToTransformTo(*DAG.getContext(), RVT),
633 &Op, 1, false, dl).first;
637 //===----------------------------------------------------------------------===//
638 // Operand Float to Integer Conversion..
639 //===----------------------------------------------------------------------===//
641 bool DAGTypeLegalizer::SoftenFloatOperand(SDNode *N, unsigned OpNo) {
642 DEBUG(dbgs() << "Soften float operand " << OpNo << ": "; N->dump(&DAG);
644 SDValue Res = SDValue();
646 switch (N->getOpcode()) {
649 dbgs() << "SoftenFloatOperand Op #" << OpNo << ": ";
650 N->dump(&DAG); dbgs() << "\n";
652 llvm_unreachable("Do not know how to soften this operator's operand!");
654 case ISD::BITCAST: Res = SoftenFloatOp_BITCAST(N); break;
655 case ISD::BR_CC: Res = SoftenFloatOp_BR_CC(N); break;
656 case ISD::FP_EXTEND: Res = SoftenFloatOp_FP_EXTEND(N); break;
657 case ISD::FP_TO_FP16: // Same as FP_ROUND for softening purposes
658 case ISD::FP_ROUND: Res = SoftenFloatOp_FP_ROUND(N); break;
659 case ISD::FP_TO_SINT: Res = SoftenFloatOp_FP_TO_SINT(N); break;
660 case ISD::FP_TO_UINT: Res = SoftenFloatOp_FP_TO_UINT(N); break;
661 case ISD::SELECT_CC: Res = SoftenFloatOp_SELECT_CC(N); break;
662 case ISD::SETCC: Res = SoftenFloatOp_SETCC(N); break;
663 case ISD::STORE: Res = SoftenFloatOp_STORE(N, OpNo); break;
666 // If the result is null, the sub-method took care of registering results etc.
667 if (!Res.getNode()) return false;
669 // If the result is N, the sub-method updated N in place. Tell the legalizer
671 if (Res.getNode() == N)
674 assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 &&
675 "Invalid operand expansion");
677 ReplaceValueWith(SDValue(N, 0), Res);
681 SDValue DAGTypeLegalizer::SoftenFloatOp_BITCAST(SDNode *N) {
682 return DAG.getNode(ISD::BITCAST, SDLoc(N), N->getValueType(0),
683 GetSoftenedFloat(N->getOperand(0)));
686 SDValue DAGTypeLegalizer::SoftenFloatOp_FP_EXTEND(SDNode *N) {
687 // If we get here, the result must be legal but the source illegal.
688 EVT SVT = N->getOperand(0).getValueType();
689 EVT RVT = N->getValueType(0);
690 SDValue Op = GetSoftenedFloat(N->getOperand(0));
693 return DAG.getNode(ISD::FP16_TO_FP, SDLoc(N), RVT, Op);
695 RTLIB::Libcall LC = RTLIB::getFPEXT(SVT, RVT);
696 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_EXTEND libcall");
698 return TLI.makeLibCall(DAG, LC, RVT, &Op, 1, false, SDLoc(N)).first;
702 SDValue DAGTypeLegalizer::SoftenFloatOp_FP_ROUND(SDNode *N) {
703 // We actually deal with the partially-softened FP_TO_FP16 node too, which
704 // returns an i16 so doesn't meet the constraints necessary for FP_ROUND.
705 assert(N->getOpcode() == ISD::FP_ROUND || N->getOpcode() == ISD::FP_TO_FP16);
707 EVT SVT = N->getOperand(0).getValueType();
708 EVT RVT = N->getValueType(0);
709 EVT FloatRVT = N->getOpcode() == ISD::FP_TO_FP16 ? MVT::f16 : RVT;
711 RTLIB::Libcall LC = RTLIB::getFPROUND(SVT, FloatRVT);
712 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_ROUND libcall");
714 SDValue Op = GetSoftenedFloat(N->getOperand(0));
715 return TLI.makeLibCall(DAG, LC, RVT, &Op, 1, false, SDLoc(N)).first;
718 SDValue DAGTypeLegalizer::SoftenFloatOp_BR_CC(SDNode *N) {
719 SDValue NewLHS = N->getOperand(2), NewRHS = N->getOperand(3);
720 ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(1))->get();
722 EVT VT = NewLHS.getValueType();
723 NewLHS = GetSoftenedFloat(NewLHS);
724 NewRHS = GetSoftenedFloat(NewRHS);
725 TLI.softenSetCCOperands(DAG, VT, NewLHS, NewRHS, CCCode, SDLoc(N));
727 // If softenSetCCOperands returned a scalar, we need to compare the result
728 // against zero to select between true and false values.
729 if (!NewRHS.getNode()) {
730 NewRHS = DAG.getConstant(0, NewLHS.getValueType());
734 // Update N to have the operands specified.
735 return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0),
736 DAG.getCondCode(CCCode), NewLHS, NewRHS,
741 SDValue DAGTypeLegalizer::SoftenFloatOp_FP_TO_SINT(SDNode *N) {
742 EVT RVT = N->getValueType(0);
743 RTLIB::Libcall LC = RTLIB::getFPTOSINT(N->getOperand(0).getValueType(), RVT);
744 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_TO_SINT!");
745 SDValue Op = GetSoftenedFloat(N->getOperand(0));
746 return TLI.makeLibCall(DAG, LC, RVT, &Op, 1, false, SDLoc(N)).first;
749 SDValue DAGTypeLegalizer::SoftenFloatOp_FP_TO_UINT(SDNode *N) {
750 EVT RVT = N->getValueType(0);
751 RTLIB::Libcall LC = RTLIB::getFPTOUINT(N->getOperand(0).getValueType(), RVT);
752 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_TO_UINT!");
753 SDValue Op = GetSoftenedFloat(N->getOperand(0));
754 return TLI.makeLibCall(DAG, LC, RVT, &Op, 1, false, SDLoc(N)).first;
757 SDValue DAGTypeLegalizer::SoftenFloatOp_SELECT_CC(SDNode *N) {
758 SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1);
759 ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(4))->get();
761 EVT VT = NewLHS.getValueType();
762 NewLHS = GetSoftenedFloat(NewLHS);
763 NewRHS = GetSoftenedFloat(NewRHS);
764 TLI.softenSetCCOperands(DAG, VT, NewLHS, NewRHS, CCCode, SDLoc(N));
766 // If softenSetCCOperands returned a scalar, we need to compare the result
767 // against zero to select between true and false values.
768 if (!NewRHS.getNode()) {
769 NewRHS = DAG.getConstant(0, NewLHS.getValueType());
773 // Update N to have the operands specified.
774 return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS,
775 N->getOperand(2), N->getOperand(3),
776 DAG.getCondCode(CCCode)),
780 SDValue DAGTypeLegalizer::SoftenFloatOp_SETCC(SDNode *N) {
781 SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1);
782 ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(2))->get();
784 EVT VT = NewLHS.getValueType();
785 NewLHS = GetSoftenedFloat(NewLHS);
786 NewRHS = GetSoftenedFloat(NewRHS);
787 TLI.softenSetCCOperands(DAG, VT, NewLHS, NewRHS, CCCode, SDLoc(N));
789 // If softenSetCCOperands returned a scalar, use it.
790 if (!NewRHS.getNode()) {
791 assert(NewLHS.getValueType() == N->getValueType(0) &&
792 "Unexpected setcc expansion!");
796 // Otherwise, update N to have the operands specified.
797 return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS,
798 DAG.getCondCode(CCCode)),
802 SDValue DAGTypeLegalizer::SoftenFloatOp_STORE(SDNode *N, unsigned OpNo) {
803 assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!");
804 assert(OpNo == 1 && "Can only soften the stored value!");
805 StoreSDNode *ST = cast<StoreSDNode>(N);
806 SDValue Val = ST->getValue();
809 if (ST->isTruncatingStore())
810 // Do an FP_ROUND followed by a non-truncating store.
811 Val = BitConvertToInteger(DAG.getNode(ISD::FP_ROUND, dl, ST->getMemoryVT(),
812 Val, DAG.getIntPtrConstant(0)));
814 Val = GetSoftenedFloat(Val);
816 return DAG.getStore(ST->getChain(), dl, Val, ST->getBasePtr(),
817 ST->getMemOperand());
821 //===----------------------------------------------------------------------===//
822 // Float Result Expansion
823 //===----------------------------------------------------------------------===//
825 /// ExpandFloatResult - This method is called when the specified result of the
826 /// specified node is found to need expansion. At this point, the node may also
827 /// have invalid operands or may have other results that need promotion, we just
828 /// know that (at least) one result needs expansion.
829 void DAGTypeLegalizer::ExpandFloatResult(SDNode *N, unsigned ResNo) {
830 DEBUG(dbgs() << "Expand float result: "; N->dump(&DAG); dbgs() << "\n");
834 // See if the target wants to custom expand this node.
835 if (CustomLowerNode(N, N->getValueType(ResNo), true))
838 switch (N->getOpcode()) {
841 dbgs() << "ExpandFloatResult #" << ResNo << ": ";
842 N->dump(&DAG); dbgs() << "\n";
844 llvm_unreachable("Do not know how to expand the result of this operator!");
846 case ISD::UNDEF: SplitRes_UNDEF(N, Lo, Hi); break;
847 case ISD::SELECT: SplitRes_SELECT(N, Lo, Hi); break;
848 case ISD::SELECT_CC: SplitRes_SELECT_CC(N, Lo, Hi); break;
850 case ISD::MERGE_VALUES: ExpandRes_MERGE_VALUES(N, ResNo, Lo, Hi); break;
851 case ISD::BITCAST: ExpandRes_BITCAST(N, Lo, Hi); break;
852 case ISD::BUILD_PAIR: ExpandRes_BUILD_PAIR(N, Lo, Hi); break;
853 case ISD::EXTRACT_ELEMENT: ExpandRes_EXTRACT_ELEMENT(N, Lo, Hi); break;
854 case ISD::EXTRACT_VECTOR_ELT: ExpandRes_EXTRACT_VECTOR_ELT(N, Lo, Hi); break;
855 case ISD::VAARG: ExpandRes_VAARG(N, Lo, Hi); break;
857 case ISD::ConstantFP: ExpandFloatRes_ConstantFP(N, Lo, Hi); break;
858 case ISD::FABS: ExpandFloatRes_FABS(N, Lo, Hi); break;
859 case ISD::FADD: ExpandFloatRes_FADD(N, Lo, Hi); break;
860 case ISD::FCEIL: ExpandFloatRes_FCEIL(N, Lo, Hi); break;
861 case ISD::FCOPYSIGN: ExpandFloatRes_FCOPYSIGN(N, Lo, Hi); break;
862 case ISD::FCOS: ExpandFloatRes_FCOS(N, Lo, Hi); break;
863 case ISD::FDIV: ExpandFloatRes_FDIV(N, Lo, Hi); break;
864 case ISD::FEXP: ExpandFloatRes_FEXP(N, Lo, Hi); break;
865 case ISD::FEXP2: ExpandFloatRes_FEXP2(N, Lo, Hi); break;
866 case ISD::FFLOOR: ExpandFloatRes_FFLOOR(N, Lo, Hi); break;
867 case ISD::FLOG: ExpandFloatRes_FLOG(N, Lo, Hi); break;
868 case ISD::FLOG2: ExpandFloatRes_FLOG2(N, Lo, Hi); break;
869 case ISD::FLOG10: ExpandFloatRes_FLOG10(N, Lo, Hi); break;
870 case ISD::FMA: ExpandFloatRes_FMA(N, Lo, Hi); break;
871 case ISD::FMUL: ExpandFloatRes_FMUL(N, Lo, Hi); break;
872 case ISD::FNEARBYINT: ExpandFloatRes_FNEARBYINT(N, Lo, Hi); break;
873 case ISD::FNEG: ExpandFloatRes_FNEG(N, Lo, Hi); break;
874 case ISD::FP_EXTEND: ExpandFloatRes_FP_EXTEND(N, Lo, Hi); break;
875 case ISD::FPOW: ExpandFloatRes_FPOW(N, Lo, Hi); break;
876 case ISD::FPOWI: ExpandFloatRes_FPOWI(N, Lo, Hi); break;
877 case ISD::FRINT: ExpandFloatRes_FRINT(N, Lo, Hi); break;
878 case ISD::FROUND: ExpandFloatRes_FROUND(N, Lo, Hi); break;
879 case ISD::FSIN: ExpandFloatRes_FSIN(N, Lo, Hi); break;
880 case ISD::FSQRT: ExpandFloatRes_FSQRT(N, Lo, Hi); break;
881 case ISD::FSUB: ExpandFloatRes_FSUB(N, Lo, Hi); break;
882 case ISD::FTRUNC: ExpandFloatRes_FTRUNC(N, Lo, Hi); break;
883 case ISD::LOAD: ExpandFloatRes_LOAD(N, Lo, Hi); break;
884 case ISD::SINT_TO_FP:
885 case ISD::UINT_TO_FP: ExpandFloatRes_XINT_TO_FP(N, Lo, Hi); break;
886 case ISD::FREM: ExpandFloatRes_FREM(N, Lo, Hi); break;
889 // If Lo/Hi is null, the sub-method took care of registering results etc.
891 SetExpandedFloat(SDValue(N, ResNo), Lo, Hi);
894 void DAGTypeLegalizer::ExpandFloatRes_ConstantFP(SDNode *N, SDValue &Lo,
896 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
897 assert(NVT.getSizeInBits() == integerPartWidth &&
898 "Do not know how to expand this float constant!");
899 APInt C = cast<ConstantFPSDNode>(N)->getValueAPF().bitcastToAPInt();
900 Lo = DAG.getConstantFP(APFloat(DAG.EVTToAPFloatSemantics(NVT),
901 APInt(integerPartWidth, C.getRawData()[1])),
903 Hi = DAG.getConstantFP(APFloat(DAG.EVTToAPFloatSemantics(NVT),
904 APInt(integerPartWidth, C.getRawData()[0])),
908 void DAGTypeLegalizer::ExpandFloatRes_FABS(SDNode *N, SDValue &Lo,
910 assert(N->getValueType(0) == MVT::ppcf128 &&
911 "Logic only correct for ppcf128!");
914 GetExpandedFloat(N->getOperand(0), Lo, Tmp);
915 Hi = DAG.getNode(ISD::FABS, dl, Tmp.getValueType(), Tmp);
916 // Lo = Hi==fabs(Hi) ? Lo : -Lo;
917 Lo = DAG.getSelectCC(dl, Tmp, Hi, Lo,
918 DAG.getNode(ISD::FNEG, dl, Lo.getValueType(), Lo),
922 void DAGTypeLegalizer::ExpandFloatRes_FADD(SDNode *N, SDValue &Lo,
924 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
925 RTLIB::ADD_F32, RTLIB::ADD_F64,
926 RTLIB::ADD_F80, RTLIB::ADD_F128,
929 GetPairElements(Call, Lo, Hi);
932 void DAGTypeLegalizer::ExpandFloatRes_FCEIL(SDNode *N,
933 SDValue &Lo, SDValue &Hi) {
934 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
935 RTLIB::CEIL_F32, RTLIB::CEIL_F64,
936 RTLIB::CEIL_F80, RTLIB::CEIL_F128,
937 RTLIB::CEIL_PPCF128),
939 GetPairElements(Call, Lo, Hi);
942 void DAGTypeLegalizer::ExpandFloatRes_FCOPYSIGN(SDNode *N,
943 SDValue &Lo, SDValue &Hi) {
944 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
948 RTLIB::COPYSIGN_F128,
949 RTLIB::COPYSIGN_PPCF128),
951 GetPairElements(Call, Lo, Hi);
954 void DAGTypeLegalizer::ExpandFloatRes_FCOS(SDNode *N,
955 SDValue &Lo, SDValue &Hi) {
956 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
957 RTLIB::COS_F32, RTLIB::COS_F64,
958 RTLIB::COS_F80, RTLIB::COS_F128,
961 GetPairElements(Call, Lo, Hi);
964 void DAGTypeLegalizer::ExpandFloatRes_FDIV(SDNode *N, SDValue &Lo,
966 SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) };
967 SDValue Call = TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
973 N->getValueType(0), Ops, 2, false,
975 GetPairElements(Call, Lo, Hi);
978 void DAGTypeLegalizer::ExpandFloatRes_FEXP(SDNode *N,
979 SDValue &Lo, SDValue &Hi) {
980 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
981 RTLIB::EXP_F32, RTLIB::EXP_F64,
982 RTLIB::EXP_F80, RTLIB::EXP_F128,
985 GetPairElements(Call, Lo, Hi);
988 void DAGTypeLegalizer::ExpandFloatRes_FEXP2(SDNode *N,
989 SDValue &Lo, SDValue &Hi) {
990 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
991 RTLIB::EXP2_F32, RTLIB::EXP2_F64,
992 RTLIB::EXP2_F80, RTLIB::EXP2_F128,
993 RTLIB::EXP2_PPCF128),
995 GetPairElements(Call, Lo, Hi);
998 void DAGTypeLegalizer::ExpandFloatRes_FFLOOR(SDNode *N,
999 SDValue &Lo, SDValue &Hi) {
1000 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1001 RTLIB::FLOOR_F32, RTLIB::FLOOR_F64,
1002 RTLIB::FLOOR_F80, RTLIB::FLOOR_F128,
1003 RTLIB::FLOOR_PPCF128),
1005 GetPairElements(Call, Lo, Hi);
1008 void DAGTypeLegalizer::ExpandFloatRes_FLOG(SDNode *N,
1009 SDValue &Lo, SDValue &Hi) {
1010 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1011 RTLIB::LOG_F32, RTLIB::LOG_F64,
1012 RTLIB::LOG_F80, RTLIB::LOG_F128,
1013 RTLIB::LOG_PPCF128),
1015 GetPairElements(Call, Lo, Hi);
1018 void DAGTypeLegalizer::ExpandFloatRes_FLOG2(SDNode *N,
1019 SDValue &Lo, SDValue &Hi) {
1020 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1021 RTLIB::LOG2_F32, RTLIB::LOG2_F64,
1022 RTLIB::LOG2_F80, RTLIB::LOG2_F128,
1023 RTLIB::LOG2_PPCF128),
1025 GetPairElements(Call, Lo, Hi);
1028 void DAGTypeLegalizer::ExpandFloatRes_FLOG10(SDNode *N,
1029 SDValue &Lo, SDValue &Hi) {
1030 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1031 RTLIB::LOG10_F32, RTLIB::LOG10_F64,
1032 RTLIB::LOG10_F80, RTLIB::LOG10_F128,
1033 RTLIB::LOG10_PPCF128),
1035 GetPairElements(Call, Lo, Hi);
1038 void DAGTypeLegalizer::ExpandFloatRes_FMA(SDNode *N, SDValue &Lo,
1040 SDValue Ops[3] = { N->getOperand(0), N->getOperand(1), N->getOperand(2) };
1041 SDValue Call = TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
1046 RTLIB::FMA_PPCF128),
1047 N->getValueType(0), Ops, 3, false,
1049 GetPairElements(Call, Lo, Hi);
1052 void DAGTypeLegalizer::ExpandFloatRes_FMUL(SDNode *N, SDValue &Lo,
1054 SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) };
1055 SDValue Call = TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
1060 RTLIB::MUL_PPCF128),
1061 N->getValueType(0), Ops, 2, false,
1063 GetPairElements(Call, Lo, Hi);
1066 void DAGTypeLegalizer::ExpandFloatRes_FNEARBYINT(SDNode *N,
1067 SDValue &Lo, SDValue &Hi) {
1068 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1069 RTLIB::NEARBYINT_F32,
1070 RTLIB::NEARBYINT_F64,
1071 RTLIB::NEARBYINT_F80,
1072 RTLIB::NEARBYINT_F128,
1073 RTLIB::NEARBYINT_PPCF128),
1075 GetPairElements(Call, Lo, Hi);
1078 void DAGTypeLegalizer::ExpandFloatRes_FNEG(SDNode *N, SDValue &Lo,
1081 GetExpandedFloat(N->getOperand(0), Lo, Hi);
1082 Lo = DAG.getNode(ISD::FNEG, dl, Lo.getValueType(), Lo);
1083 Hi = DAG.getNode(ISD::FNEG, dl, Hi.getValueType(), Hi);
1086 void DAGTypeLegalizer::ExpandFloatRes_FP_EXTEND(SDNode *N, SDValue &Lo,
1088 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
1089 Hi = DAG.getNode(ISD::FP_EXTEND, SDLoc(N), NVT, N->getOperand(0));
1090 Lo = DAG.getConstantFP(APFloat(DAG.EVTToAPFloatSemantics(NVT),
1091 APInt(NVT.getSizeInBits(), 0)), NVT);
1094 void DAGTypeLegalizer::ExpandFloatRes_FPOW(SDNode *N,
1095 SDValue &Lo, SDValue &Hi) {
1096 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1097 RTLIB::POW_F32, RTLIB::POW_F64,
1098 RTLIB::POW_F80, RTLIB::POW_F128,
1099 RTLIB::POW_PPCF128),
1101 GetPairElements(Call, Lo, Hi);
1104 void DAGTypeLegalizer::ExpandFloatRes_FPOWI(SDNode *N,
1105 SDValue &Lo, SDValue &Hi) {
1106 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1107 RTLIB::POWI_F32, RTLIB::POWI_F64,
1108 RTLIB::POWI_F80, RTLIB::POWI_F128,
1109 RTLIB::POWI_PPCF128),
1111 GetPairElements(Call, Lo, Hi);
1114 void DAGTypeLegalizer::ExpandFloatRes_FREM(SDNode *N,
1115 SDValue &Lo, SDValue &Hi) {
1116 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1117 RTLIB::REM_F32, RTLIB::REM_F64,
1118 RTLIB::REM_F80, RTLIB::REM_F128,
1119 RTLIB::REM_PPCF128),
1121 GetPairElements(Call, Lo, Hi);
1124 void DAGTypeLegalizer::ExpandFloatRes_FRINT(SDNode *N,
1125 SDValue &Lo, SDValue &Hi) {
1126 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1127 RTLIB::RINT_F32, RTLIB::RINT_F64,
1128 RTLIB::RINT_F80, RTLIB::RINT_F128,
1129 RTLIB::RINT_PPCF128),
1131 GetPairElements(Call, Lo, Hi);
1134 void DAGTypeLegalizer::ExpandFloatRes_FROUND(SDNode *N,
1135 SDValue &Lo, SDValue &Hi) {
1136 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1141 RTLIB::ROUND_PPCF128),
1143 GetPairElements(Call, Lo, Hi);
1146 void DAGTypeLegalizer::ExpandFloatRes_FSIN(SDNode *N,
1147 SDValue &Lo, SDValue &Hi) {
1148 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1149 RTLIB::SIN_F32, RTLIB::SIN_F64,
1150 RTLIB::SIN_F80, RTLIB::SIN_F128,
1151 RTLIB::SIN_PPCF128),
1153 GetPairElements(Call, Lo, Hi);
1156 void DAGTypeLegalizer::ExpandFloatRes_FSQRT(SDNode *N,
1157 SDValue &Lo, SDValue &Hi) {
1158 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1159 RTLIB::SQRT_F32, RTLIB::SQRT_F64,
1160 RTLIB::SQRT_F80, RTLIB::SQRT_F128,
1161 RTLIB::SQRT_PPCF128),
1163 GetPairElements(Call, Lo, Hi);
1166 void DAGTypeLegalizer::ExpandFloatRes_FSUB(SDNode *N, SDValue &Lo,
1168 SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) };
1169 SDValue Call = TLI.makeLibCall(DAG, GetFPLibCall(N->getValueType(0),
1174 RTLIB::SUB_PPCF128),
1175 N->getValueType(0), Ops, 2, false,
1177 GetPairElements(Call, Lo, Hi);
1180 void DAGTypeLegalizer::ExpandFloatRes_FTRUNC(SDNode *N,
1181 SDValue &Lo, SDValue &Hi) {
1182 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1183 RTLIB::TRUNC_F32, RTLIB::TRUNC_F64,
1184 RTLIB::TRUNC_F80, RTLIB::TRUNC_F128,
1185 RTLIB::TRUNC_PPCF128),
1187 GetPairElements(Call, Lo, Hi);
1190 void DAGTypeLegalizer::ExpandFloatRes_LOAD(SDNode *N, SDValue &Lo,
1192 if (ISD::isNormalLoad(N)) {
1193 ExpandRes_NormalLoad(N, Lo, Hi);
1197 assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!");
1198 LoadSDNode *LD = cast<LoadSDNode>(N);
1199 SDValue Chain = LD->getChain();
1200 SDValue Ptr = LD->getBasePtr();
1203 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), LD->getValueType(0));
1204 assert(NVT.isByteSized() && "Expanded type not byte sized!");
1205 assert(LD->getMemoryVT().bitsLE(NVT) && "Float type not round?");
1207 Hi = DAG.getExtLoad(LD->getExtensionType(), dl, NVT, Chain, Ptr,
1208 LD->getMemoryVT(), LD->getMemOperand());
1210 // Remember the chain.
1211 Chain = Hi.getValue(1);
1213 // The low part is zero.
1214 Lo = DAG.getConstantFP(APFloat(DAG.EVTToAPFloatSemantics(NVT),
1215 APInt(NVT.getSizeInBits(), 0)), NVT);
1217 // Modified the chain - switch anything that used the old chain to use the
1219 ReplaceValueWith(SDValue(LD, 1), Chain);
1222 void DAGTypeLegalizer::ExpandFloatRes_XINT_TO_FP(SDNode *N, SDValue &Lo,
1224 assert(N->getValueType(0) == MVT::ppcf128 && "Unsupported XINT_TO_FP!");
1225 EVT VT = N->getValueType(0);
1226 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT);
1227 SDValue Src = N->getOperand(0);
1228 EVT SrcVT = Src.getValueType();
1229 bool isSigned = N->getOpcode() == ISD::SINT_TO_FP;
1232 // First do an SINT_TO_FP, whether the original was signed or unsigned.
1233 // When promoting partial word types to i32 we must honor the signedness,
1235 if (SrcVT.bitsLE(MVT::i32)) {
1236 // The integer can be represented exactly in an f64.
1237 Src = DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, dl,
1239 Lo = DAG.getConstantFP(APFloat(DAG.EVTToAPFloatSemantics(NVT),
1240 APInt(NVT.getSizeInBits(), 0)), NVT);
1241 Hi = DAG.getNode(ISD::SINT_TO_FP, dl, NVT, Src);
1243 RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL;
1244 if (SrcVT.bitsLE(MVT::i64)) {
1245 Src = DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, dl,
1247 LC = RTLIB::SINTTOFP_I64_PPCF128;
1248 } else if (SrcVT.bitsLE(MVT::i128)) {
1249 Src = DAG.getNode(ISD::SIGN_EXTEND, dl, MVT::i128, Src);
1250 LC = RTLIB::SINTTOFP_I128_PPCF128;
1252 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported XINT_TO_FP!");
1254 Hi = TLI.makeLibCall(DAG, LC, VT, &Src, 1, true, dl).first;
1255 GetPairElements(Hi, Lo, Hi);
1261 // Unsigned - fix up the SINT_TO_FP value just calculated.
1262 Hi = DAG.getNode(ISD::BUILD_PAIR, dl, VT, Lo, Hi);
1263 SrcVT = Src.getValueType();
1265 // x>=0 ? (ppcf128)(iN)x : (ppcf128)(iN)x + 2^N; N=32,64,128.
1266 static const uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 };
1267 static const uint64_t TwoE64[] = { 0x43f0000000000000LL, 0 };
1268 static const uint64_t TwoE128[] = { 0x47f0000000000000LL, 0 };
1269 ArrayRef<uint64_t> Parts;
1271 switch (SrcVT.getSimpleVT().SimpleTy) {
1273 llvm_unreachable("Unsupported UINT_TO_FP!");
1285 Lo = DAG.getNode(ISD::FADD, dl, VT, Hi,
1286 DAG.getConstantFP(APFloat(APFloat::PPCDoubleDouble,
1289 Lo = DAG.getSelectCC(dl, Src, DAG.getConstant(0, SrcVT),
1290 Lo, Hi, ISD::SETLT);
1291 GetPairElements(Lo, Lo, Hi);
1295 //===----------------------------------------------------------------------===//
1296 // Float Operand Expansion
1297 //===----------------------------------------------------------------------===//
1299 /// ExpandFloatOperand - This method is called when the specified operand of the
1300 /// specified node is found to need expansion. At this point, all of the result
1301 /// types of the node are known to be legal, but other operands of the node may
1302 /// need promotion or expansion as well as the specified one.
1303 bool DAGTypeLegalizer::ExpandFloatOperand(SDNode *N, unsigned OpNo) {
1304 DEBUG(dbgs() << "Expand float operand: "; N->dump(&DAG); dbgs() << "\n");
1305 SDValue Res = SDValue();
1307 // See if the target wants to custom expand this node.
1308 if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false))
1311 switch (N->getOpcode()) {
1314 dbgs() << "ExpandFloatOperand Op #" << OpNo << ": ";
1315 N->dump(&DAG); dbgs() << "\n";
1317 llvm_unreachable("Do not know how to expand this operator's operand!");
1319 case ISD::BITCAST: Res = ExpandOp_BITCAST(N); break;
1320 case ISD::BUILD_VECTOR: Res = ExpandOp_BUILD_VECTOR(N); break;
1321 case ISD::EXTRACT_ELEMENT: Res = ExpandOp_EXTRACT_ELEMENT(N); break;
1323 case ISD::BR_CC: Res = ExpandFloatOp_BR_CC(N); break;
1324 case ISD::FCOPYSIGN: Res = ExpandFloatOp_FCOPYSIGN(N); break;
1325 case ISD::FP_ROUND: Res = ExpandFloatOp_FP_ROUND(N); break;
1326 case ISD::FP_TO_SINT: Res = ExpandFloatOp_FP_TO_SINT(N); break;
1327 case ISD::FP_TO_UINT: Res = ExpandFloatOp_FP_TO_UINT(N); break;
1328 case ISD::SELECT_CC: Res = ExpandFloatOp_SELECT_CC(N); break;
1329 case ISD::SETCC: Res = ExpandFloatOp_SETCC(N); break;
1330 case ISD::STORE: Res = ExpandFloatOp_STORE(cast<StoreSDNode>(N),
1334 // If the result is null, the sub-method took care of registering results etc.
1335 if (!Res.getNode()) return false;
1337 // If the result is N, the sub-method updated N in place. Tell the legalizer
1339 if (Res.getNode() == N)
1342 assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 &&
1343 "Invalid operand expansion");
1345 ReplaceValueWith(SDValue(N, 0), Res);
1349 /// FloatExpandSetCCOperands - Expand the operands of a comparison. This code
1350 /// is shared among BR_CC, SELECT_CC, and SETCC handlers.
1351 void DAGTypeLegalizer::FloatExpandSetCCOperands(SDValue &NewLHS,
1353 ISD::CondCode &CCCode,
1355 SDValue LHSLo, LHSHi, RHSLo, RHSHi;
1356 GetExpandedFloat(NewLHS, LHSLo, LHSHi);
1357 GetExpandedFloat(NewRHS, RHSLo, RHSHi);
1359 assert(NewLHS.getValueType() == MVT::ppcf128 && "Unsupported setcc type!");
1361 // FIXME: This generated code sucks. We want to generate
1362 // FCMPU crN, hi1, hi2
1364 // FCMPU crN, lo1, lo2
1365 // The following can be improved, but not that much.
1366 SDValue Tmp1, Tmp2, Tmp3;
1367 Tmp1 = DAG.getSetCC(dl, getSetCCResultType(LHSHi.getValueType()),
1368 LHSHi, RHSHi, ISD::SETOEQ);
1369 Tmp2 = DAG.getSetCC(dl, getSetCCResultType(LHSLo.getValueType()),
1370 LHSLo, RHSLo, CCCode);
1371 Tmp3 = DAG.getNode(ISD::AND, dl, Tmp1.getValueType(), Tmp1, Tmp2);
1372 Tmp1 = DAG.getSetCC(dl, getSetCCResultType(LHSHi.getValueType()),
1373 LHSHi, RHSHi, ISD::SETUNE);
1374 Tmp2 = DAG.getSetCC(dl, getSetCCResultType(LHSHi.getValueType()),
1375 LHSHi, RHSHi, CCCode);
1376 Tmp1 = DAG.getNode(ISD::AND, dl, Tmp1.getValueType(), Tmp1, Tmp2);
1377 NewLHS = DAG.getNode(ISD::OR, dl, Tmp1.getValueType(), Tmp1, Tmp3);
1378 NewRHS = SDValue(); // LHS is the result, not a compare.
1381 SDValue DAGTypeLegalizer::ExpandFloatOp_BR_CC(SDNode *N) {
1382 SDValue NewLHS = N->getOperand(2), NewRHS = N->getOperand(3);
1383 ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(1))->get();
1384 FloatExpandSetCCOperands(NewLHS, NewRHS, CCCode, SDLoc(N));
1386 // If ExpandSetCCOperands returned a scalar, we need to compare the result
1387 // against zero to select between true and false values.
1388 if (!NewRHS.getNode()) {
1389 NewRHS = DAG.getConstant(0, NewLHS.getValueType());
1390 CCCode = ISD::SETNE;
1393 // Update N to have the operands specified.
1394 return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0),
1395 DAG.getCondCode(CCCode), NewLHS, NewRHS,
1396 N->getOperand(4)), 0);
1399 SDValue DAGTypeLegalizer::ExpandFloatOp_FCOPYSIGN(SDNode *N) {
1400 assert(N->getOperand(1).getValueType() == MVT::ppcf128 &&
1401 "Logic only correct for ppcf128!");
1403 GetExpandedFloat(N->getOperand(1), Lo, Hi);
1404 // The ppcf128 value is providing only the sign; take it from the
1405 // higher-order double (which must have the larger magnitude).
1406 return DAG.getNode(ISD::FCOPYSIGN, SDLoc(N),
1407 N->getValueType(0), N->getOperand(0), Hi);
1410 SDValue DAGTypeLegalizer::ExpandFloatOp_FP_ROUND(SDNode *N) {
1411 assert(N->getOperand(0).getValueType() == MVT::ppcf128 &&
1412 "Logic only correct for ppcf128!");
1414 GetExpandedFloat(N->getOperand(0), Lo, Hi);
1415 // Round it the rest of the way (e.g. to f32) if needed.
1416 return DAG.getNode(ISD::FP_ROUND, SDLoc(N),
1417 N->getValueType(0), Hi, N->getOperand(1));
1420 SDValue DAGTypeLegalizer::ExpandFloatOp_FP_TO_SINT(SDNode *N) {
1421 EVT RVT = N->getValueType(0);
1424 // Expand ppcf128 to i32 by hand for the benefit of llvm-gcc bootstrap on
1425 // PPC (the libcall is not available). FIXME: Do this in a less hacky way.
1426 if (RVT == MVT::i32) {
1427 assert(N->getOperand(0).getValueType() == MVT::ppcf128 &&
1428 "Logic only correct for ppcf128!");
1429 SDValue Res = DAG.getNode(ISD::FP_ROUND_INREG, dl, MVT::ppcf128,
1430 N->getOperand(0), DAG.getValueType(MVT::f64));
1431 Res = DAG.getNode(ISD::FP_ROUND, dl, MVT::f64, Res,
1432 DAG.getIntPtrConstant(1));
1433 return DAG.getNode(ISD::FP_TO_SINT, dl, MVT::i32, Res);
1436 RTLIB::Libcall LC = RTLIB::getFPTOSINT(N->getOperand(0).getValueType(), RVT);
1437 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_TO_SINT!");
1438 return TLI.makeLibCall(DAG, LC, RVT, &N->getOperand(0), 1, false, dl).first;
1441 SDValue DAGTypeLegalizer::ExpandFloatOp_FP_TO_UINT(SDNode *N) {
1442 EVT RVT = N->getValueType(0);
1445 // Expand ppcf128 to i32 by hand for the benefit of llvm-gcc bootstrap on
1446 // PPC (the libcall is not available). FIXME: Do this in a less hacky way.
1447 if (RVT == MVT::i32) {
1448 assert(N->getOperand(0).getValueType() == MVT::ppcf128 &&
1449 "Logic only correct for ppcf128!");
1450 const uint64_t TwoE31[] = {0x41e0000000000000LL, 0};
1451 APFloat APF = APFloat(APFloat::PPCDoubleDouble, APInt(128, TwoE31));
1452 SDValue Tmp = DAG.getConstantFP(APF, MVT::ppcf128);
1453 // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X
1454 // FIXME: generated code sucks.
1455 return DAG.getSelectCC(dl, N->getOperand(0), Tmp,
1456 DAG.getNode(ISD::ADD, dl, MVT::i32,
1457 DAG.getNode(ISD::FP_TO_SINT, dl, MVT::i32,
1458 DAG.getNode(ISD::FSUB, dl,
1462 DAG.getConstant(0x80000000, MVT::i32)),
1463 DAG.getNode(ISD::FP_TO_SINT, dl,
1464 MVT::i32, N->getOperand(0)),
1468 RTLIB::Libcall LC = RTLIB::getFPTOUINT(N->getOperand(0).getValueType(), RVT);
1469 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_TO_UINT!");
1470 return TLI.makeLibCall(DAG, LC, N->getValueType(0), &N->getOperand(0), 1,
1474 SDValue DAGTypeLegalizer::ExpandFloatOp_SELECT_CC(SDNode *N) {
1475 SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1);
1476 ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(4))->get();
1477 FloatExpandSetCCOperands(NewLHS, NewRHS, CCCode, SDLoc(N));
1479 // If ExpandSetCCOperands returned a scalar, we need to compare the result
1480 // against zero to select between true and false values.
1481 if (!NewRHS.getNode()) {
1482 NewRHS = DAG.getConstant(0, NewLHS.getValueType());
1483 CCCode = ISD::SETNE;
1486 // Update N to have the operands specified.
1487 return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS,
1488 N->getOperand(2), N->getOperand(3),
1489 DAG.getCondCode(CCCode)), 0);
1492 SDValue DAGTypeLegalizer::ExpandFloatOp_SETCC(SDNode *N) {
1493 SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1);
1494 ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(2))->get();
1495 FloatExpandSetCCOperands(NewLHS, NewRHS, CCCode, SDLoc(N));
1497 // If ExpandSetCCOperands returned a scalar, use it.
1498 if (!NewRHS.getNode()) {
1499 assert(NewLHS.getValueType() == N->getValueType(0) &&
1500 "Unexpected setcc expansion!");
1504 // Otherwise, update N to have the operands specified.
1505 return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS,
1506 DAG.getCondCode(CCCode)), 0);
1509 SDValue DAGTypeLegalizer::ExpandFloatOp_STORE(SDNode *N, unsigned OpNo) {
1510 if (ISD::isNormalStore(N))
1511 return ExpandOp_NormalStore(N, OpNo);
1513 assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!");
1514 assert(OpNo == 1 && "Can only expand the stored value so far");
1515 StoreSDNode *ST = cast<StoreSDNode>(N);
1517 SDValue Chain = ST->getChain();
1518 SDValue Ptr = ST->getBasePtr();
1520 EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(),
1521 ST->getValue().getValueType());
1522 assert(NVT.isByteSized() && "Expanded type not byte sized!");
1523 assert(ST->getMemoryVT().bitsLE(NVT) && "Float type not round?");
1527 GetExpandedOp(ST->getValue(), Lo, Hi);
1529 return DAG.getTruncStore(Chain, SDLoc(N), Hi, Ptr,
1530 ST->getMemoryVT(), ST->getMemOperand());