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"
25 /// GetFPLibCall - Return the right libcall for the given floating point type.
26 static RTLIB::Libcall GetFPLibCall(MVT VT,
27 RTLIB::Libcall Call_F32,
28 RTLIB::Libcall Call_F64,
29 RTLIB::Libcall Call_F80,
30 RTLIB::Libcall Call_PPCF128) {
32 VT == MVT::f32 ? Call_F32 :
33 VT == MVT::f64 ? Call_F64 :
34 VT == MVT::f80 ? Call_F80 :
35 VT == MVT::ppcf128 ? Call_PPCF128 :
36 RTLIB::UNKNOWN_LIBCALL;
39 //===----------------------------------------------------------------------===//
40 // Result Float to Integer Conversion.
41 //===----------------------------------------------------------------------===//
43 void DAGTypeLegalizer::SoftenFloatResult(SDNode *N, unsigned ResNo) {
44 DEBUG(cerr << "Soften float result " << ResNo << ": "; N->dump(&DAG);
46 SDValue R = SDValue();
48 switch (N->getOpcode()) {
51 cerr << "SoftenFloatResult #" << ResNo << ": ";
52 N->dump(&DAG); cerr << "\n";
54 assert(0 && "Do not know how to soften the result of this operator!");
57 case ISD::BIT_CONVERT: R = SoftenFloatRes_BIT_CONVERT(N); break;
58 case ISD::BUILD_PAIR: R = SoftenFloatRes_BUILD_PAIR(N); break;
60 R = SoftenFloatRes_ConstantFP(cast<ConstantFPSDNode>(N));
62 case ISD::EXTRACT_VECTOR_ELT:
63 R = SoftenFloatRes_EXTRACT_VECTOR_ELT(N); break;
64 case ISD::FABS: R = SoftenFloatRes_FABS(N); break;
65 case ISD::FADD: R = SoftenFloatRes_FADD(N); break;
66 case ISD::FCEIL: R = SoftenFloatRes_FCEIL(N); break;
67 case ISD::FCOPYSIGN: R = SoftenFloatRes_FCOPYSIGN(N); break;
68 case ISD::FCOS: R = SoftenFloatRes_FCOS(N); break;
69 case ISD::FDIV: R = SoftenFloatRes_FDIV(N); break;
70 case ISD::FEXP: R = SoftenFloatRes_FEXP(N); break;
71 case ISD::FEXP2: R = SoftenFloatRes_FEXP2(N); break;
72 case ISD::FFLOOR: R = SoftenFloatRes_FFLOOR(N); break;
73 case ISD::FLOG: R = SoftenFloatRes_FLOG(N); break;
74 case ISD::FLOG2: R = SoftenFloatRes_FLOG2(N); break;
75 case ISD::FLOG10: R = SoftenFloatRes_FLOG10(N); break;
76 case ISD::FMUL: R = SoftenFloatRes_FMUL(N); break;
77 case ISD::FNEARBYINT: R = SoftenFloatRes_FNEARBYINT(N); break;
78 case ISD::FNEG: R = SoftenFloatRes_FNEG(N); break;
79 case ISD::FP_EXTEND: R = SoftenFloatRes_FP_EXTEND(N); break;
80 case ISD::FP_ROUND: R = SoftenFloatRes_FP_ROUND(N); break;
81 case ISD::FPOW: R = SoftenFloatRes_FPOW(N); break;
82 case ISD::FPOWI: R = SoftenFloatRes_FPOWI(N); break;
83 case ISD::FREM: R = SoftenFloatRes_FREM(N); break;
84 case ISD::FRINT: R = SoftenFloatRes_FRINT(N); break;
85 case ISD::FSIN: R = SoftenFloatRes_FSIN(N); break;
86 case ISD::FSQRT: R = SoftenFloatRes_FSQRT(N); break;
87 case ISD::FSUB: R = SoftenFloatRes_FSUB(N); break;
88 case ISD::FTRUNC: R = SoftenFloatRes_FTRUNC(N); break;
89 case ISD::LOAD: R = SoftenFloatRes_LOAD(N); break;
90 case ISD::SELECT: R = SoftenFloatRes_SELECT(N); break;
91 case ISD::SELECT_CC: R = SoftenFloatRes_SELECT_CC(N); break;
93 case ISD::UINT_TO_FP: R = SoftenFloatRes_XINT_TO_FP(N); break;
94 case ISD::UNDEF: R = SoftenFloatRes_UNDEF(N); break;
95 case ISD::VAARG: R = SoftenFloatRes_VAARG(N); break;
98 // If R is null, the sub-method took care of registering the result.
100 SetSoftenedFloat(SDValue(N, ResNo), R);
103 SDValue DAGTypeLegalizer::SoftenFloatRes_BIT_CONVERT(SDNode *N) {
104 return BitConvertToInteger(N->getOperand(0));
107 SDValue DAGTypeLegalizer::SoftenFloatRes_BUILD_PAIR(SDNode *N) {
108 // Convert the inputs to integers, and build a new pair out of them.
109 return DAG.getNode(ISD::BUILD_PAIR, N->getDebugLoc(),
110 TLI.getTypeToTransformTo(N->getValueType(0)),
111 BitConvertToInteger(N->getOperand(0)),
112 BitConvertToInteger(N->getOperand(1)));
115 SDValue DAGTypeLegalizer::SoftenFloatRes_ConstantFP(ConstantFPSDNode *N) {
116 return DAG.getConstant(N->getValueAPF().bitcastToAPInt(),
117 TLI.getTypeToTransformTo(N->getValueType(0)));
120 SDValue DAGTypeLegalizer::SoftenFloatRes_EXTRACT_VECTOR_ELT(SDNode *N) {
121 SDValue NewOp = BitConvertVectorToIntegerVector(N->getOperand(0));
122 return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, N->getDebugLoc(),
123 NewOp.getValueType().getVectorElementType(),
124 NewOp, N->getOperand(1));
127 SDValue DAGTypeLegalizer::SoftenFloatRes_FABS(SDNode *N) {
128 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
129 unsigned Size = NVT.getSizeInBits();
131 // Mask = ~(1 << (Size-1))
132 SDValue Mask = DAG.getConstant(APInt::getAllOnesValue(Size).clear(Size-1),
134 SDValue Op = GetSoftenedFloat(N->getOperand(0));
135 return DAG.getNode(ISD::AND, N->getDebugLoc(), NVT, Op, Mask);
138 SDValue DAGTypeLegalizer::SoftenFloatRes_FADD(SDNode *N) {
139 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
140 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)),
141 GetSoftenedFloat(N->getOperand(1)) };
142 return MakeLibCall(GetFPLibCall(N->getValueType(0),
147 NVT, Ops, 2, false, N->getDebugLoc());
150 SDValue DAGTypeLegalizer::SoftenFloatRes_FCEIL(SDNode *N) {
151 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
152 SDValue Op = GetSoftenedFloat(N->getOperand(0));
153 return MakeLibCall(GetFPLibCall(N->getValueType(0),
157 RTLIB::CEIL_PPCF128),
158 NVT, &Op, 1, false, N->getDebugLoc());
161 SDValue DAGTypeLegalizer::SoftenFloatRes_FCOPYSIGN(SDNode *N) {
162 SDValue LHS = GetSoftenedFloat(N->getOperand(0));
163 SDValue RHS = BitConvertToInteger(N->getOperand(1));
164 DebugLoc dl = N->getDebugLoc();
166 MVT LVT = LHS.getValueType();
167 MVT RVT = RHS.getValueType();
169 unsigned LSize = LVT.getSizeInBits();
170 unsigned RSize = RVT.getSizeInBits();
172 // First get the sign bit of second operand.
173 SDValue SignBit = DAG.getNode(ISD::SHL, dl, RVT, DAG.getConstant(1, RVT),
174 DAG.getConstant(RSize - 1,
175 TLI.getShiftAmountTy()));
176 SignBit = DAG.getNode(ISD::AND, dl, RVT, RHS, SignBit);
178 // Shift right or sign-extend it if the two operands have different types.
179 int SizeDiff = RVT.getSizeInBits() - LVT.getSizeInBits();
181 SignBit = DAG.getNode(ISD::SRL, dl, RVT, SignBit,
182 DAG.getConstant(SizeDiff, TLI.getShiftAmountTy()));
183 SignBit = DAG.getNode(ISD::TRUNCATE, dl, LVT, SignBit);
184 } else if (SizeDiff < 0) {
185 SignBit = DAG.getNode(ISD::ANY_EXTEND, dl, LVT, SignBit);
186 SignBit = DAG.getNode(ISD::SHL, dl, LVT, SignBit,
187 DAG.getConstant(-SizeDiff, TLI.getShiftAmountTy()));
190 // Clear the sign bit of the first operand.
191 SDValue Mask = DAG.getNode(ISD::SHL, dl, LVT, DAG.getConstant(1, LVT),
192 DAG.getConstant(LSize - 1,
193 TLI.getShiftAmountTy()));
194 Mask = DAG.getNode(ISD::SUB, dl, LVT, Mask, DAG.getConstant(1, LVT));
195 LHS = DAG.getNode(ISD::AND, dl, LVT, LHS, Mask);
197 // Or the value with the sign bit.
198 return DAG.getNode(ISD::OR, dl, LVT, LHS, SignBit);
201 SDValue DAGTypeLegalizer::SoftenFloatRes_FCOS(SDNode *N) {
202 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
203 SDValue Op = GetSoftenedFloat(N->getOperand(0));
204 return MakeLibCall(GetFPLibCall(N->getValueType(0),
209 NVT, &Op, 1, false, N->getDebugLoc());
212 SDValue DAGTypeLegalizer::SoftenFloatRes_FDIV(SDNode *N) {
213 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
214 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)),
215 GetSoftenedFloat(N->getOperand(1)) };
216 return MakeLibCall(GetFPLibCall(N->getValueType(0),
221 NVT, Ops, 2, false, N->getDebugLoc());
224 SDValue DAGTypeLegalizer::SoftenFloatRes_FEXP(SDNode *N) {
225 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
226 SDValue Op = GetSoftenedFloat(N->getOperand(0));
227 return MakeLibCall(GetFPLibCall(N->getValueType(0),
232 NVT, &Op, 1, false, N->getDebugLoc());
235 SDValue DAGTypeLegalizer::SoftenFloatRes_FEXP2(SDNode *N) {
236 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
237 SDValue Op = GetSoftenedFloat(N->getOperand(0));
238 return MakeLibCall(GetFPLibCall(N->getValueType(0),
242 RTLIB::EXP2_PPCF128),
243 NVT, &Op, 1, false, N->getDebugLoc());
246 SDValue DAGTypeLegalizer::SoftenFloatRes_FFLOOR(SDNode *N) {
247 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
248 SDValue Op = GetSoftenedFloat(N->getOperand(0));
249 return MakeLibCall(GetFPLibCall(N->getValueType(0),
253 RTLIB::FLOOR_PPCF128),
254 NVT, &Op, 1, false, N->getDebugLoc());
257 SDValue DAGTypeLegalizer::SoftenFloatRes_FLOG(SDNode *N) {
258 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
259 SDValue Op = GetSoftenedFloat(N->getOperand(0));
260 return MakeLibCall(GetFPLibCall(N->getValueType(0),
265 NVT, &Op, 1, false, N->getDebugLoc());
268 SDValue DAGTypeLegalizer::SoftenFloatRes_FLOG2(SDNode *N) {
269 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
270 SDValue Op = GetSoftenedFloat(N->getOperand(0));
271 return MakeLibCall(GetFPLibCall(N->getValueType(0),
275 RTLIB::LOG2_PPCF128),
276 NVT, &Op, 1, false, N->getDebugLoc());
279 SDValue DAGTypeLegalizer::SoftenFloatRes_FLOG10(SDNode *N) {
280 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
281 SDValue Op = GetSoftenedFloat(N->getOperand(0));
282 return MakeLibCall(GetFPLibCall(N->getValueType(0),
286 RTLIB::LOG10_PPCF128),
287 NVT, &Op, 1, false, N->getDebugLoc());
290 SDValue DAGTypeLegalizer::SoftenFloatRes_FMUL(SDNode *N) {
291 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
292 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)),
293 GetSoftenedFloat(N->getOperand(1)) };
294 return MakeLibCall(GetFPLibCall(N->getValueType(0),
299 NVT, Ops, 2, false, N->getDebugLoc());
302 SDValue DAGTypeLegalizer::SoftenFloatRes_FNEARBYINT(SDNode *N) {
303 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
304 SDValue Op = GetSoftenedFloat(N->getOperand(0));
305 return MakeLibCall(GetFPLibCall(N->getValueType(0),
306 RTLIB::NEARBYINT_F32,
307 RTLIB::NEARBYINT_F64,
308 RTLIB::NEARBYINT_F80,
309 RTLIB::NEARBYINT_PPCF128),
310 NVT, &Op, 1, false, N->getDebugLoc());
313 SDValue DAGTypeLegalizer::SoftenFloatRes_FNEG(SDNode *N) {
314 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
315 // Expand Y = FNEG(X) -> Y = SUB -0.0, X
316 SDValue Ops[2] = { DAG.getConstantFP(-0.0, N->getValueType(0)),
317 GetSoftenedFloat(N->getOperand(0)) };
318 return MakeLibCall(GetFPLibCall(N->getValueType(0),
323 NVT, Ops, 2, false, N->getDebugLoc());
326 SDValue DAGTypeLegalizer::SoftenFloatRes_FP_EXTEND(SDNode *N) {
327 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
328 SDValue Op = N->getOperand(0);
329 RTLIB::Libcall LC = RTLIB::getFPEXT(Op.getValueType(), N->getValueType(0));
330 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_EXTEND!");
331 return MakeLibCall(LC, NVT, &Op, 1, false, N->getDebugLoc());
334 SDValue DAGTypeLegalizer::SoftenFloatRes_FP_ROUND(SDNode *N) {
335 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
336 SDValue Op = N->getOperand(0);
337 RTLIB::Libcall LC = RTLIB::getFPROUND(Op.getValueType(), N->getValueType(0));
338 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_ROUND!");
339 return MakeLibCall(LC, NVT, &Op, 1, false, N->getDebugLoc());
342 SDValue DAGTypeLegalizer::SoftenFloatRes_FPOW(SDNode *N) {
343 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
344 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)),
345 GetSoftenedFloat(N->getOperand(1)) };
346 return MakeLibCall(GetFPLibCall(N->getValueType(0),
351 NVT, Ops, 2, false, N->getDebugLoc());
354 SDValue DAGTypeLegalizer::SoftenFloatRes_FPOWI(SDNode *N) {
355 assert(N->getOperand(1).getValueType() == MVT::i32 &&
356 "Unsupported power type!");
357 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
358 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)), N->getOperand(1) };
359 return MakeLibCall(GetFPLibCall(N->getValueType(0),
363 RTLIB::POWI_PPCF128),
364 NVT, Ops, 2, false, N->getDebugLoc());
367 SDValue DAGTypeLegalizer::SoftenFloatRes_FREM(SDNode *N) {
368 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
369 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)),
370 GetSoftenedFloat(N->getOperand(1)) };
371 return MakeLibCall(GetFPLibCall(N->getValueType(0),
376 NVT, Ops, 2, false, N->getDebugLoc());
379 SDValue DAGTypeLegalizer::SoftenFloatRes_FRINT(SDNode *N) {
380 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
381 SDValue Op = GetSoftenedFloat(N->getOperand(0));
382 return MakeLibCall(GetFPLibCall(N->getValueType(0),
386 RTLIB::RINT_PPCF128),
387 NVT, &Op, 1, false, N->getDebugLoc());
390 SDValue DAGTypeLegalizer::SoftenFloatRes_FSIN(SDNode *N) {
391 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
392 SDValue Op = GetSoftenedFloat(N->getOperand(0));
393 return MakeLibCall(GetFPLibCall(N->getValueType(0),
398 NVT, &Op, 1, false, N->getDebugLoc());
401 SDValue DAGTypeLegalizer::SoftenFloatRes_FSQRT(SDNode *N) {
402 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
403 SDValue Op = GetSoftenedFloat(N->getOperand(0));
404 return MakeLibCall(GetFPLibCall(N->getValueType(0),
408 RTLIB::SQRT_PPCF128),
409 NVT, &Op, 1, false, N->getDebugLoc());
412 SDValue DAGTypeLegalizer::SoftenFloatRes_FSUB(SDNode *N) {
413 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
414 SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)),
415 GetSoftenedFloat(N->getOperand(1)) };
416 return MakeLibCall(GetFPLibCall(N->getValueType(0),
421 NVT, Ops, 2, false, N->getDebugLoc());
424 SDValue DAGTypeLegalizer::SoftenFloatRes_FTRUNC(SDNode *N) {
425 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
426 SDValue Op = GetSoftenedFloat(N->getOperand(0));
427 return MakeLibCall(GetFPLibCall(N->getValueType(0),
431 RTLIB::TRUNC_PPCF128),
432 NVT, &Op, 1, false, N->getDebugLoc());
435 SDValue DAGTypeLegalizer::SoftenFloatRes_LOAD(SDNode *N) {
436 LoadSDNode *L = cast<LoadSDNode>(N);
437 MVT VT = N->getValueType(0);
438 MVT NVT = TLI.getTypeToTransformTo(VT);
439 DebugLoc dl = N->getDebugLoc();
442 if (L->getExtensionType() == ISD::NON_EXTLOAD) {
443 NewL = DAG.getLoad(L->getAddressingMode(), dl, L->getExtensionType(),
444 NVT, L->getChain(), L->getBasePtr(), L->getOffset(),
445 L->getSrcValue(), L->getSrcValueOffset(), NVT,
446 L->isVolatile(), L->getAlignment());
447 // Legalized the chain result - switch anything that used the old chain to
449 ReplaceValueWith(SDValue(N, 1), NewL.getValue(1));
453 // Do a non-extending load followed by FP_EXTEND.
454 NewL = DAG.getLoad(L->getAddressingMode(), dl, ISD::NON_EXTLOAD,
455 L->getMemoryVT(), L->getChain(),
456 L->getBasePtr(), L->getOffset(),
457 L->getSrcValue(), L->getSrcValueOffset(),
459 L->isVolatile(), L->getAlignment());
460 // Legalized the chain result - switch anything that used the old chain to
462 ReplaceValueWith(SDValue(N, 1), NewL.getValue(1));
463 return BitConvertToInteger(DAG.getNode(ISD::FP_EXTEND, dl, VT, NewL));
466 SDValue DAGTypeLegalizer::SoftenFloatRes_SELECT(SDNode *N) {
467 SDValue LHS = GetSoftenedFloat(N->getOperand(1));
468 SDValue RHS = GetSoftenedFloat(N->getOperand(2));
469 return DAG.getNode(ISD::SELECT, N->getDebugLoc(),
470 LHS.getValueType(), N->getOperand(0),LHS,RHS);
473 SDValue DAGTypeLegalizer::SoftenFloatRes_SELECT_CC(SDNode *N) {
474 SDValue LHS = GetSoftenedFloat(N->getOperand(2));
475 SDValue RHS = GetSoftenedFloat(N->getOperand(3));
476 return DAG.getNode(ISD::SELECT_CC, N->getDebugLoc(),
477 LHS.getValueType(), N->getOperand(0),
478 N->getOperand(1), LHS, RHS, N->getOperand(4));
481 SDValue DAGTypeLegalizer::SoftenFloatRes_UNDEF(SDNode *N) {
482 return DAG.getUNDEF(TLI.getTypeToTransformTo(N->getValueType(0)));
485 SDValue DAGTypeLegalizer::SoftenFloatRes_VAARG(SDNode *N) {
486 SDValue Chain = N->getOperand(0); // Get the chain.
487 SDValue Ptr = N->getOperand(1); // Get the pointer.
488 MVT VT = N->getValueType(0);
489 MVT NVT = TLI.getTypeToTransformTo(VT);
490 DebugLoc dl = N->getDebugLoc();
493 NewVAARG = DAG.getVAArg(NVT, dl, Chain, Ptr, N->getOperand(2));
495 // Legalized the chain result - switch anything that used the old chain to
497 ReplaceValueWith(SDValue(N, 1), NewVAARG.getValue(1));
501 SDValue DAGTypeLegalizer::SoftenFloatRes_XINT_TO_FP(SDNode *N) {
502 bool Signed = N->getOpcode() == ISD::SINT_TO_FP;
503 MVT SVT = N->getOperand(0).getValueType();
504 MVT RVT = N->getValueType(0);
506 DebugLoc dl = N->getDebugLoc();
508 // If the input is not legal, eg: i1 -> fp, then it needs to be promoted to
509 // a larger type, eg: i8 -> fp. Even if it is legal, no libcall may exactly
510 // match. Look for an appropriate libcall.
511 RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL;
512 for (unsigned t = MVT::FIRST_INTEGER_VALUETYPE;
513 t <= MVT::LAST_INTEGER_VALUETYPE && LC == RTLIB::UNKNOWN_LIBCALL; ++t) {
514 NVT = (MVT::SimpleValueType)t;
515 // The source needs to big enough to hold the operand.
517 LC = Signed ? RTLIB::getSINTTOFP(NVT, RVT):RTLIB::getUINTTOFP (NVT, RVT);
519 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported XINT_TO_FP!");
521 // Sign/zero extend the argument if the libcall takes a larger type.
522 SDValue Op = DAG.getNode(Signed ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, dl,
523 NVT, N->getOperand(0));
524 return MakeLibCall(LC, TLI.getTypeToTransformTo(RVT), &Op, 1, false, dl);
528 //===----------------------------------------------------------------------===//
529 // Operand Float to Integer Conversion..
530 //===----------------------------------------------------------------------===//
532 bool DAGTypeLegalizer::SoftenFloatOperand(SDNode *N, unsigned OpNo) {
533 DEBUG(cerr << "Soften float operand " << OpNo << ": "; N->dump(&DAG);
535 SDValue Res = SDValue();
537 switch (N->getOpcode()) {
540 cerr << "SoftenFloatOperand Op #" << OpNo << ": ";
541 N->dump(&DAG); cerr << "\n";
543 assert(0 && "Do not know how to soften this operator's operand!");
546 case ISD::BIT_CONVERT: Res = SoftenFloatOp_BIT_CONVERT(N); break;
547 case ISD::BR_CC: Res = SoftenFloatOp_BR_CC(N); break;
548 case ISD::FP_ROUND: Res = SoftenFloatOp_FP_ROUND(N); break;
549 case ISD::FP_TO_SINT: Res = SoftenFloatOp_FP_TO_SINT(N); break;
550 case ISD::FP_TO_UINT: Res = SoftenFloatOp_FP_TO_UINT(N); break;
551 case ISD::SELECT_CC: Res = SoftenFloatOp_SELECT_CC(N); break;
552 case ISD::SETCC: Res = SoftenFloatOp_SETCC(N); break;
553 case ISD::STORE: Res = SoftenFloatOp_STORE(N, OpNo); break;
556 // If the result is null, the sub-method took care of registering results etc.
557 if (!Res.getNode()) return false;
559 // If the result is N, the sub-method updated N in place. Tell the legalizer
561 if (Res.getNode() == N)
564 assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 &&
565 "Invalid operand expansion");
567 ReplaceValueWith(SDValue(N, 0), Res);
571 /// SoftenSetCCOperands - Soften the operands of a comparison. This code is
572 /// shared among BR_CC, SELECT_CC, and SETCC handlers.
573 void DAGTypeLegalizer::SoftenSetCCOperands(SDValue &NewLHS, SDValue &NewRHS,
574 ISD::CondCode &CCCode, DebugLoc dl) {
575 SDValue LHSInt = GetSoftenedFloat(NewLHS);
576 SDValue RHSInt = GetSoftenedFloat(NewRHS);
577 MVT VT = NewLHS.getValueType();
579 assert((VT == MVT::f32 || VT == MVT::f64) && "Unsupported setcc type!");
581 // Expand into one or more soft-fp libcall(s).
582 RTLIB::Libcall LC1 = RTLIB::UNKNOWN_LIBCALL, LC2 = RTLIB::UNKNOWN_LIBCALL;
586 LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64;
590 LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64;
594 LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64;
598 LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64;
602 LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64;
606 LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64;
609 LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64;
612 LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64;
615 LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64;
618 // SETONE = SETOLT | SETOGT
619 LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64;
622 LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64;
625 LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64;
628 LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64;
631 LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64;
634 LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64;
636 default: assert(false && "Do not know how to soften this setcc!");
640 MVT RetVT = MVT::i32; // FIXME: is this the correct return type?
641 SDValue Ops[2] = { LHSInt, RHSInt };
642 NewLHS = MakeLibCall(LC1, RetVT, Ops, 2, false/*sign irrelevant*/, dl);
643 NewRHS = DAG.getConstant(0, RetVT);
644 CCCode = TLI.getCmpLibcallCC(LC1);
645 if (LC2 != RTLIB::UNKNOWN_LIBCALL) {
646 SDValue Tmp = DAG.getNode(ISD::SETCC, dl, TLI.getSetCCResultType(RetVT),
647 NewLHS, NewRHS, DAG.getCondCode(CCCode));
648 NewLHS = MakeLibCall(LC2, RetVT, Ops, 2, false/*sign irrelevant*/, dl);
649 NewLHS = DAG.getNode(ISD::SETCC, dl, TLI.getSetCCResultType(RetVT), NewLHS,
650 NewRHS, DAG.getCondCode(TLI.getCmpLibcallCC(LC2)));
651 NewLHS = DAG.getNode(ISD::OR, dl, Tmp.getValueType(), Tmp, NewLHS);
656 SDValue DAGTypeLegalizer::SoftenFloatOp_BIT_CONVERT(SDNode *N) {
657 return DAG.getNode(ISD::BIT_CONVERT, N->getDebugLoc(), N->getValueType(0),
658 GetSoftenedFloat(N->getOperand(0)));
661 SDValue DAGTypeLegalizer::SoftenFloatOp_FP_ROUND(SDNode *N) {
662 MVT SVT = N->getOperand(0).getValueType();
663 MVT RVT = N->getValueType(0);
665 RTLIB::Libcall LC = RTLIB::getFPROUND(SVT, RVT);
666 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_ROUND libcall");
668 SDValue Op = GetSoftenedFloat(N->getOperand(0));
669 return MakeLibCall(LC, RVT, &Op, 1, false, N->getDebugLoc());
672 SDValue DAGTypeLegalizer::SoftenFloatOp_BR_CC(SDNode *N) {
673 SDValue NewLHS = N->getOperand(2), NewRHS = N->getOperand(3);
674 ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(1))->get();
675 SoftenSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc());
677 // If SoftenSetCCOperands returned a scalar, we need to compare the result
678 // against zero to select between true and false values.
679 if (NewRHS.getNode() == 0) {
680 NewRHS = DAG.getConstant(0, NewLHS.getValueType());
684 // Update N to have the operands specified.
685 return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0),
686 DAG.getCondCode(CCCode), NewLHS, NewRHS,
690 SDValue DAGTypeLegalizer::SoftenFloatOp_FP_TO_SINT(SDNode *N) {
691 MVT RVT = N->getValueType(0);
692 RTLIB::Libcall LC = RTLIB::getFPTOSINT(N->getOperand(0).getValueType(), RVT);
693 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_TO_SINT!");
694 SDValue Op = GetSoftenedFloat(N->getOperand(0));
695 return MakeLibCall(LC, RVT, &Op, 1, false, N->getDebugLoc());
698 SDValue DAGTypeLegalizer::SoftenFloatOp_FP_TO_UINT(SDNode *N) {
699 MVT RVT = N->getValueType(0);
700 RTLIB::Libcall LC = RTLIB::getFPTOUINT(N->getOperand(0).getValueType(), RVT);
701 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_TO_UINT!");
702 SDValue Op = GetSoftenedFloat(N->getOperand(0));
703 return MakeLibCall(LC, RVT, &Op, 1, false, N->getDebugLoc());
706 SDValue DAGTypeLegalizer::SoftenFloatOp_SELECT_CC(SDNode *N) {
707 SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1);
708 ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(4))->get();
709 SoftenSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc());
711 // If SoftenSetCCOperands returned a scalar, we need to compare the result
712 // against zero to select between true and false values.
713 if (NewRHS.getNode() == 0) {
714 NewRHS = DAG.getConstant(0, NewLHS.getValueType());
718 // Update N to have the operands specified.
719 return DAG.UpdateNodeOperands(SDValue(N, 0), NewLHS, NewRHS,
720 N->getOperand(2), N->getOperand(3),
721 DAG.getCondCode(CCCode));
724 SDValue DAGTypeLegalizer::SoftenFloatOp_SETCC(SDNode *N) {
725 SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1);
726 ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(2))->get();
727 SoftenSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc());
729 // If SoftenSetCCOperands returned a scalar, use it.
730 if (NewRHS.getNode() == 0) {
731 assert(NewLHS.getValueType() == N->getValueType(0) &&
732 "Unexpected setcc expansion!");
736 // Otherwise, update N to have the operands specified.
737 return DAG.UpdateNodeOperands(SDValue(N, 0), NewLHS, NewRHS,
738 DAG.getCondCode(CCCode));
741 SDValue DAGTypeLegalizer::SoftenFloatOp_STORE(SDNode *N, unsigned OpNo) {
742 assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!");
743 assert(OpNo == 1 && "Can only soften the stored value!");
744 StoreSDNode *ST = cast<StoreSDNode>(N);
745 SDValue Val = ST->getValue();
746 DebugLoc dl = N->getDebugLoc();
748 if (ST->isTruncatingStore())
749 // Do an FP_ROUND followed by a non-truncating store.
750 Val = BitConvertToInteger(DAG.getNode(ISD::FP_ROUND, dl, ST->getMemoryVT(),
751 Val, DAG.getIntPtrConstant(0)));
753 Val = GetSoftenedFloat(Val);
755 return DAG.getStore(ST->getChain(), dl, Val, ST->getBasePtr(),
756 ST->getSrcValue(), ST->getSrcValueOffset(),
757 ST->isVolatile(), ST->getAlignment());
761 //===----------------------------------------------------------------------===//
762 // Float Result Expansion
763 //===----------------------------------------------------------------------===//
765 /// ExpandFloatResult - This method is called when the specified result of the
766 /// specified node is found to need expansion. At this point, the node may also
767 /// have invalid operands or may have other results that need promotion, we just
768 /// know that (at least) one result needs expansion.
769 void DAGTypeLegalizer::ExpandFloatResult(SDNode *N, unsigned ResNo) {
770 DEBUG(cerr << "Expand float result: "; N->dump(&DAG); cerr << "\n");
774 // See if the target wants to custom expand this node.
775 if (CustomLowerResults(N, N->getValueType(ResNo), true))
778 switch (N->getOpcode()) {
781 cerr << "ExpandFloatResult #" << ResNo << ": ";
782 N->dump(&DAG); cerr << "\n";
784 assert(0 && "Do not know how to expand the result of this operator!");
787 case ISD::MERGE_VALUES: SplitRes_MERGE_VALUES(N, Lo, Hi); break;
788 case ISD::UNDEF: SplitRes_UNDEF(N, Lo, Hi); break;
789 case ISD::SELECT: SplitRes_SELECT(N, Lo, Hi); break;
790 case ISD::SELECT_CC: SplitRes_SELECT_CC(N, Lo, Hi); break;
792 case ISD::BIT_CONVERT: ExpandRes_BIT_CONVERT(N, Lo, Hi); break;
793 case ISD::BUILD_PAIR: ExpandRes_BUILD_PAIR(N, Lo, Hi); break;
794 case ISD::EXTRACT_ELEMENT: ExpandRes_EXTRACT_ELEMENT(N, Lo, Hi); break;
795 case ISD::EXTRACT_VECTOR_ELT: ExpandRes_EXTRACT_VECTOR_ELT(N, Lo, Hi); break;
796 case ISD::VAARG: ExpandRes_VAARG(N, Lo, Hi); break;
798 case ISD::ConstantFP: ExpandFloatRes_ConstantFP(N, Lo, Hi); break;
799 case ISD::FABS: ExpandFloatRes_FABS(N, Lo, Hi); break;
800 case ISD::FADD: ExpandFloatRes_FADD(N, Lo, Hi); break;
801 case ISD::FCEIL: ExpandFloatRes_FCEIL(N, Lo, Hi); break;
802 case ISD::FCOS: ExpandFloatRes_FCOS(N, Lo, Hi); break;
803 case ISD::FDIV: ExpandFloatRes_FDIV(N, Lo, Hi); break;
804 case ISD::FEXP: ExpandFloatRes_FEXP(N, Lo, Hi); break;
805 case ISD::FEXP2: ExpandFloatRes_FEXP2(N, Lo, Hi); break;
806 case ISD::FFLOOR: ExpandFloatRes_FFLOOR(N, Lo, Hi); break;
807 case ISD::FLOG: ExpandFloatRes_FLOG(N, Lo, Hi); break;
808 case ISD::FLOG2: ExpandFloatRes_FLOG2(N, Lo, Hi); break;
809 case ISD::FLOG10: ExpandFloatRes_FLOG10(N, Lo, Hi); break;
810 case ISD::FMUL: ExpandFloatRes_FMUL(N, Lo, Hi); break;
811 case ISD::FNEARBYINT: ExpandFloatRes_FNEARBYINT(N, Lo, Hi); break;
812 case ISD::FNEG: ExpandFloatRes_FNEG(N, Lo, Hi); break;
813 case ISD::FP_EXTEND: ExpandFloatRes_FP_EXTEND(N, Lo, Hi); break;
814 case ISD::FPOW: ExpandFloatRes_FPOW(N, Lo, Hi); break;
815 case ISD::FPOWI: ExpandFloatRes_FPOWI(N, Lo, Hi); break;
816 case ISD::FRINT: ExpandFloatRes_FRINT(N, Lo, Hi); break;
817 case ISD::FSIN: ExpandFloatRes_FSIN(N, Lo, Hi); break;
818 case ISD::FSQRT: ExpandFloatRes_FSQRT(N, Lo, Hi); break;
819 case ISD::FSUB: ExpandFloatRes_FSUB(N, Lo, Hi); break;
820 case ISD::FTRUNC: ExpandFloatRes_FTRUNC(N, Lo, Hi); break;
821 case ISD::LOAD: ExpandFloatRes_LOAD(N, Lo, Hi); break;
822 case ISD::SINT_TO_FP:
823 case ISD::UINT_TO_FP: ExpandFloatRes_XINT_TO_FP(N, Lo, Hi); break;
826 // If Lo/Hi is null, the sub-method took care of registering results etc.
828 SetExpandedFloat(SDValue(N, ResNo), Lo, Hi);
831 void DAGTypeLegalizer::ExpandFloatRes_ConstantFP(SDNode *N, SDValue &Lo,
833 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
834 assert(NVT.getSizeInBits() == integerPartWidth &&
835 "Do not know how to expand this float constant!");
836 APInt C = cast<ConstantFPSDNode>(N)->getValueAPF().bitcastToAPInt();
837 Lo = DAG.getConstantFP(APFloat(APInt(integerPartWidth, 1,
838 &C.getRawData()[1])), NVT);
839 Hi = DAG.getConstantFP(APFloat(APInt(integerPartWidth, 1,
840 &C.getRawData()[0])), NVT);
843 void DAGTypeLegalizer::ExpandFloatRes_FABS(SDNode *N, SDValue &Lo,
845 assert(N->getValueType(0) == MVT::ppcf128 &&
846 "Logic only correct for ppcf128!");
847 DebugLoc dl = N->getDebugLoc();
849 GetExpandedFloat(N->getOperand(0), Lo, Tmp);
850 Hi = DAG.getNode(ISD::FABS, dl, Tmp.getValueType(), Tmp);
851 // Lo = Hi==fabs(Hi) ? Lo : -Lo;
852 Lo = DAG.getNode(ISD::SELECT_CC, dl, Lo.getValueType(), Tmp, Hi, Lo,
853 DAG.getNode(ISD::FNEG, dl, Lo.getValueType(), Lo),
854 DAG.getCondCode(ISD::SETEQ));
857 void DAGTypeLegalizer::ExpandFloatRes_FADD(SDNode *N, SDValue &Lo,
859 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
860 RTLIB::ADD_F32, RTLIB::ADD_F64,
861 RTLIB::ADD_F80, RTLIB::ADD_PPCF128),
863 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
864 DebugLoc dl = N->getDebugLoc();
865 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
866 DAG.getIntPtrConstant(0));
867 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
868 DAG.getIntPtrConstant(1));
871 void DAGTypeLegalizer::ExpandFloatRes_FCEIL(SDNode *N,
872 SDValue &Lo, SDValue &Hi) {
873 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
874 RTLIB::CEIL_F32, RTLIB::CEIL_F64,
875 RTLIB::CEIL_F80, RTLIB::CEIL_PPCF128),
877 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
878 DebugLoc dl = N->getDebugLoc();
879 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
880 DAG.getIntPtrConstant(0));
881 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
882 DAG.getIntPtrConstant(1));
885 void DAGTypeLegalizer::ExpandFloatRes_FCOS(SDNode *N,
886 SDValue &Lo, SDValue &Hi) {
887 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
888 RTLIB::COS_F32, RTLIB::COS_F64,
889 RTLIB::COS_F80, RTLIB::COS_PPCF128),
891 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
892 DebugLoc dl = N->getDebugLoc();
893 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
894 DAG.getIntPtrConstant(0));
895 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
896 DAG.getIntPtrConstant(1));
899 void DAGTypeLegalizer::ExpandFloatRes_FDIV(SDNode *N, SDValue &Lo,
901 SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) };
902 SDValue Call = MakeLibCall(GetFPLibCall(N->getValueType(0),
907 N->getValueType(0), Ops, 2, false,
909 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
910 DebugLoc dl = N->getDebugLoc();
911 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
912 DAG.getIntPtrConstant(0));
913 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
914 DAG.getIntPtrConstant(1));
917 void DAGTypeLegalizer::ExpandFloatRes_FEXP(SDNode *N,
918 SDValue &Lo, SDValue &Hi) {
919 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
920 RTLIB::EXP_F32, RTLIB::EXP_F64,
921 RTLIB::EXP_F80, RTLIB::EXP_PPCF128),
923 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
924 DebugLoc dl = N->getDebugLoc();
925 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
926 DAG.getIntPtrConstant(0));
927 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
928 DAG.getIntPtrConstant(1));
931 void DAGTypeLegalizer::ExpandFloatRes_FEXP2(SDNode *N,
932 SDValue &Lo, SDValue &Hi) {
933 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
934 RTLIB::EXP2_F32, RTLIB::EXP2_F64,
935 RTLIB::EXP2_F80, RTLIB::EXP2_PPCF128),
937 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
938 DebugLoc dl = N->getDebugLoc();
939 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
940 DAG.getIntPtrConstant(0));
941 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
942 DAG.getIntPtrConstant(1));
945 void DAGTypeLegalizer::ExpandFloatRes_FFLOOR(SDNode *N,
946 SDValue &Lo, SDValue &Hi) {
947 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
948 RTLIB::FLOOR_F32,RTLIB::FLOOR_F64,
949 RTLIB::FLOOR_F80,RTLIB::FLOOR_PPCF128),
951 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
952 DebugLoc dl = N->getDebugLoc();
953 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
954 DAG.getIntPtrConstant(0));
955 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
956 DAG.getIntPtrConstant(1));
959 void DAGTypeLegalizer::ExpandFloatRes_FLOG(SDNode *N,
960 SDValue &Lo, SDValue &Hi) {
961 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
962 RTLIB::LOG_F32, RTLIB::LOG_F64,
963 RTLIB::LOG_F80, RTLIB::LOG_PPCF128),
965 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
966 DebugLoc dl = N->getDebugLoc();
967 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
968 DAG.getIntPtrConstant(0));
969 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
970 DAG.getIntPtrConstant(1));
973 void DAGTypeLegalizer::ExpandFloatRes_FLOG2(SDNode *N,
974 SDValue &Lo, SDValue &Hi) {
975 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
976 RTLIB::LOG2_F32, RTLIB::LOG2_F64,
977 RTLIB::LOG2_F80, RTLIB::LOG2_PPCF128),
979 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
980 DebugLoc dl = N->getDebugLoc();
981 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
982 DAG.getIntPtrConstant(0));
983 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
984 DAG.getIntPtrConstant(1));
987 void DAGTypeLegalizer::ExpandFloatRes_FLOG10(SDNode *N,
988 SDValue &Lo, SDValue &Hi) {
989 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
990 RTLIB::LOG10_F32,RTLIB::LOG10_F64,
991 RTLIB::LOG10_F80,RTLIB::LOG10_PPCF128),
993 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
994 DebugLoc dl = N->getDebugLoc();
995 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
996 DAG.getIntPtrConstant(0));
997 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
998 DAG.getIntPtrConstant(1));
1001 void DAGTypeLegalizer::ExpandFloatRes_FMUL(SDNode *N, SDValue &Lo,
1003 SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) };
1004 SDValue Call = MakeLibCall(GetFPLibCall(N->getValueType(0),
1008 RTLIB::MUL_PPCF128),
1009 N->getValueType(0), Ops, 2, false,
1011 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
1012 DebugLoc dl = N->getDebugLoc();
1013 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1014 DAG.getIntPtrConstant(0));
1015 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1016 DAG.getIntPtrConstant(1));
1019 void DAGTypeLegalizer::ExpandFloatRes_FNEARBYINT(SDNode *N,
1020 SDValue &Lo, SDValue &Hi) {
1021 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1022 RTLIB::NEARBYINT_F32,
1023 RTLIB::NEARBYINT_F64,
1024 RTLIB::NEARBYINT_F80,
1025 RTLIB::NEARBYINT_PPCF128),
1027 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
1028 DebugLoc dl = N->getDebugLoc();
1029 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1030 DAG.getIntPtrConstant(0));
1031 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1032 DAG.getIntPtrConstant(1));
1035 void DAGTypeLegalizer::ExpandFloatRes_FNEG(SDNode *N, SDValue &Lo,
1037 DebugLoc dl = N->getDebugLoc();
1038 GetExpandedFloat(N->getOperand(0), Lo, Hi);
1039 Lo = DAG.getNode(ISD::FNEG, dl, Lo.getValueType(), Lo);
1040 Hi = DAG.getNode(ISD::FNEG, dl, Hi.getValueType(), Hi);
1043 void DAGTypeLegalizer::ExpandFloatRes_FP_EXTEND(SDNode *N, SDValue &Lo,
1045 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
1046 Hi = DAG.getNode(ISD::FP_EXTEND, N->getDebugLoc(), NVT, N->getOperand(0));
1047 Lo = DAG.getConstantFP(APFloat(APInt(NVT.getSizeInBits(), 0)), NVT);
1050 void DAGTypeLegalizer::ExpandFloatRes_FPOW(SDNode *N,
1051 SDValue &Lo, SDValue &Hi) {
1052 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1053 RTLIB::POW_F32, RTLIB::POW_F64,
1054 RTLIB::POW_F80, RTLIB::POW_PPCF128),
1056 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
1057 DebugLoc dl = N->getDebugLoc();
1058 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1059 DAG.getIntPtrConstant(0));
1060 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1061 DAG.getIntPtrConstant(1));
1064 void DAGTypeLegalizer::ExpandFloatRes_FPOWI(SDNode *N,
1065 SDValue &Lo, SDValue &Hi) {
1066 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1067 RTLIB::POWI_F32, RTLIB::POWI_F64,
1068 RTLIB::POWI_F80, RTLIB::POWI_PPCF128),
1070 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
1071 DebugLoc dl = N->getDebugLoc();
1072 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1073 DAG.getIntPtrConstant(0));
1074 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1075 DAG.getIntPtrConstant(1));
1078 void DAGTypeLegalizer::ExpandFloatRes_FRINT(SDNode *N,
1079 SDValue &Lo, SDValue &Hi) {
1080 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1081 RTLIB::RINT_F32, RTLIB::RINT_F64,
1082 RTLIB::RINT_F80, RTLIB::RINT_PPCF128),
1084 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
1085 DebugLoc dl = N->getDebugLoc();
1086 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1087 DAG.getIntPtrConstant(0));
1088 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1089 DAG.getIntPtrConstant(1));
1092 void DAGTypeLegalizer::ExpandFloatRes_FSIN(SDNode *N,
1093 SDValue &Lo, SDValue &Hi) {
1094 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1095 RTLIB::SIN_F32, RTLIB::SIN_F64,
1096 RTLIB::SIN_F80, RTLIB::SIN_PPCF128),
1098 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
1099 DebugLoc dl = N->getDebugLoc();
1100 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1101 DAG.getIntPtrConstant(0));
1102 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1103 DAG.getIntPtrConstant(1));
1106 void DAGTypeLegalizer::ExpandFloatRes_FSQRT(SDNode *N,
1107 SDValue &Lo, SDValue &Hi) {
1108 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1109 RTLIB::SQRT_F32, RTLIB::SQRT_F64,
1110 RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128),
1112 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
1113 DebugLoc dl = N->getDebugLoc();
1114 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1115 DAG.getIntPtrConstant(0));
1116 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1117 DAG.getIntPtrConstant(1));
1120 void DAGTypeLegalizer::ExpandFloatRes_FSUB(SDNode *N, SDValue &Lo,
1122 SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) };
1123 SDValue Call = MakeLibCall(GetFPLibCall(N->getValueType(0),
1127 RTLIB::SUB_PPCF128),
1128 N->getValueType(0), Ops, 2, false,
1130 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
1131 DebugLoc dl = N->getDebugLoc();
1132 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1133 DAG.getIntPtrConstant(0));
1134 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1135 DAG.getIntPtrConstant(1));
1138 void DAGTypeLegalizer::ExpandFloatRes_FTRUNC(SDNode *N,
1139 SDValue &Lo, SDValue &Hi) {
1140 SDValue Call = LibCallify(GetFPLibCall(N->getValueType(0),
1141 RTLIB::TRUNC_F32, RTLIB::TRUNC_F64,
1142 RTLIB::TRUNC_F80, RTLIB::TRUNC_PPCF128),
1144 MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
1145 DebugLoc dl = N->getDebugLoc();
1146 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1147 DAG.getIntPtrConstant(0));
1148 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Call,
1149 DAG.getIntPtrConstant(1));
1152 void DAGTypeLegalizer::ExpandFloatRes_LOAD(SDNode *N, SDValue &Lo,
1154 if (ISD::isNormalLoad(N)) {
1155 ExpandRes_NormalLoad(N, Lo, Hi);
1159 assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!");
1160 LoadSDNode *LD = cast<LoadSDNode>(N);
1161 SDValue Chain = LD->getChain();
1162 SDValue Ptr = LD->getBasePtr();
1163 DebugLoc dl = N->getDebugLoc();
1165 MVT NVT = TLI.getTypeToTransformTo(LD->getValueType(0));
1166 assert(NVT.isByteSized() && "Expanded type not byte sized!");
1167 assert(LD->getMemoryVT().bitsLE(NVT) && "Float type not round?");
1169 Hi = DAG.getExtLoad(LD->getExtensionType(), dl, NVT, Chain, Ptr,
1170 LD->getSrcValue(), LD->getSrcValueOffset(),
1172 LD->isVolatile(), LD->getAlignment());
1174 // Remember the chain.
1175 Chain = Hi.getValue(1);
1177 // The low part is zero.
1178 Lo = DAG.getConstantFP(APFloat(APInt(NVT.getSizeInBits(), 0)), NVT);
1180 // Modified the chain - switch anything that used the old chain to use the
1182 ReplaceValueWith(SDValue(LD, 1), Chain);
1185 void DAGTypeLegalizer::ExpandFloatRes_XINT_TO_FP(SDNode *N, SDValue &Lo,
1187 assert(N->getValueType(0) == MVT::ppcf128 && "Unsupported XINT_TO_FP!");
1188 MVT VT = N->getValueType(0);
1189 MVT NVT = TLI.getTypeToTransformTo(VT);
1190 SDValue Src = N->getOperand(0);
1191 MVT SrcVT = Src.getValueType();
1192 bool isSigned = N->getOpcode() == ISD::SINT_TO_FP;
1193 DebugLoc dl = N->getDebugLoc();
1195 // First do an SINT_TO_FP, whether the original was signed or unsigned.
1196 // When promoting partial word types to i32 we must honor the signedness,
1198 if (SrcVT.bitsLE(MVT::i32)) {
1199 // The integer can be represented exactly in an f64.
1200 Src = DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, dl,
1202 Lo = DAG.getConstantFP(APFloat(APInt(NVT.getSizeInBits(), 0)), NVT);
1203 Hi = DAG.getNode(ISD::SINT_TO_FP, dl, NVT, Src);
1205 RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL;
1206 if (SrcVT.bitsLE(MVT::i64)) {
1207 Src = DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, dl,
1209 LC = RTLIB::SINTTOFP_I64_PPCF128;
1210 } else if (SrcVT.bitsLE(MVT::i128)) {
1211 Src = DAG.getNode(ISD::SIGN_EXTEND, dl, MVT::i128, Src);
1212 LC = RTLIB::SINTTOFP_I128_PPCF128;
1214 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported XINT_TO_FP!");
1216 Hi = MakeLibCall(LC, VT, &Src, 1, true, dl);
1217 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Hi,
1218 DAG.getIntPtrConstant(0));
1219 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Hi,
1220 DAG.getIntPtrConstant(1));
1226 // Unsigned - fix up the SINT_TO_FP value just calculated.
1227 Hi = DAG.getNode(ISD::BUILD_PAIR, dl, VT, Lo, Hi);
1228 SrcVT = Src.getValueType();
1230 // x>=0 ? (ppcf128)(iN)x : (ppcf128)(iN)x + 2^N; N=32,64,128.
1231 static const uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 };
1232 static const uint64_t TwoE64[] = { 0x43f0000000000000LL, 0 };
1233 static const uint64_t TwoE128[] = { 0x47f0000000000000LL, 0 };
1234 const uint64_t *Parts = 0;
1236 switch (SrcVT.getSimpleVT()) {
1238 assert(false && "Unsupported UINT_TO_FP!");
1250 Lo = DAG.getNode(ISD::FADD, dl, VT, Hi,
1251 DAG.getConstantFP(APFloat(APInt(128, 2, Parts)),
1253 Lo = DAG.getNode(ISD::SELECT_CC, dl, VT, Src, DAG.getConstant(0, SrcVT),
1254 Lo, Hi, DAG.getCondCode(ISD::SETLT));
1255 Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Lo, DAG.getIntPtrConstant(1));
1256 Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Lo, DAG.getIntPtrConstant(0));
1260 //===----------------------------------------------------------------------===//
1261 // Float Operand Expansion
1262 //===----------------------------------------------------------------------===//
1264 /// ExpandFloatOperand - This method is called when the specified operand of the
1265 /// specified node is found to need expansion. At this point, all of the result
1266 /// types of the node are known to be legal, but other operands of the node may
1267 /// need promotion or expansion as well as the specified one.
1268 bool DAGTypeLegalizer::ExpandFloatOperand(SDNode *N, unsigned OpNo) {
1269 DEBUG(cerr << "Expand float operand: "; N->dump(&DAG); cerr << "\n");
1270 SDValue Res = SDValue();
1272 if (TLI.getOperationAction(N->getOpcode(), N->getOperand(OpNo).getValueType())
1273 == TargetLowering::Custom)
1274 Res = TLI.LowerOperation(SDValue(N, 0), DAG);
1276 if (Res.getNode() == 0) {
1277 switch (N->getOpcode()) {
1280 cerr << "ExpandFloatOperand Op #" << OpNo << ": ";
1281 N->dump(&DAG); cerr << "\n";
1283 assert(0 && "Do not know how to expand this operator's operand!");
1286 case ISD::BIT_CONVERT: Res = ExpandOp_BIT_CONVERT(N); break;
1287 case ISD::BUILD_VECTOR: Res = ExpandOp_BUILD_VECTOR(N); break;
1288 case ISD::EXTRACT_ELEMENT: Res = ExpandOp_EXTRACT_ELEMENT(N); break;
1290 case ISD::BR_CC: Res = ExpandFloatOp_BR_CC(N); break;
1291 case ISD::FP_ROUND: Res = ExpandFloatOp_FP_ROUND(N); break;
1292 case ISD::FP_TO_SINT: Res = ExpandFloatOp_FP_TO_SINT(N); break;
1293 case ISD::FP_TO_UINT: Res = ExpandFloatOp_FP_TO_UINT(N); break;
1294 case ISD::SELECT_CC: Res = ExpandFloatOp_SELECT_CC(N); break;
1295 case ISD::SETCC: Res = ExpandFloatOp_SETCC(N); break;
1296 case ISD::STORE: Res = ExpandFloatOp_STORE(cast<StoreSDNode>(N),
1301 // If the result is null, the sub-method took care of registering results etc.
1302 if (!Res.getNode()) return false;
1304 // If the result is N, the sub-method updated N in place. Tell the legalizer
1306 if (Res.getNode() == N)
1309 assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 &&
1310 "Invalid operand expansion");
1312 ReplaceValueWith(SDValue(N, 0), Res);
1316 /// FloatExpandSetCCOperands - Expand the operands of a comparison. This code
1317 /// is shared among BR_CC, SELECT_CC, and SETCC handlers.
1318 void DAGTypeLegalizer::FloatExpandSetCCOperands(SDValue &NewLHS,
1320 ISD::CondCode &CCCode,
1322 SDValue LHSLo, LHSHi, RHSLo, RHSHi;
1323 GetExpandedFloat(NewLHS, LHSLo, LHSHi);
1324 GetExpandedFloat(NewRHS, RHSLo, RHSHi);
1326 MVT VT = NewLHS.getValueType();
1327 assert(VT == MVT::ppcf128 && "Unsupported setcc type!");
1329 // FIXME: This generated code sucks. We want to generate
1330 // FCMPU crN, hi1, hi2
1332 // FCMPU crN, lo1, lo2
1333 // The following can be improved, but not that much.
1334 SDValue Tmp1, Tmp2, Tmp3;
1335 Tmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSHi.getValueType()),
1336 LHSHi, RHSHi, ISD::SETOEQ);
1337 Tmp2 = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSLo.getValueType()),
1338 LHSLo, RHSLo, CCCode);
1339 Tmp3 = DAG.getNode(ISD::AND, dl, Tmp1.getValueType(), Tmp1, Tmp2);
1340 Tmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSHi.getValueType()),
1341 LHSHi, RHSHi, ISD::SETUNE);
1342 Tmp2 = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSHi.getValueType()),
1343 LHSHi, RHSHi, CCCode);
1344 Tmp1 = DAG.getNode(ISD::AND, dl, Tmp1.getValueType(), Tmp1, Tmp2);
1345 NewLHS = DAG.getNode(ISD::OR, dl, Tmp1.getValueType(), Tmp1, Tmp3);
1346 NewRHS = SDValue(); // LHS is the result, not a compare.
1349 SDValue DAGTypeLegalizer::ExpandFloatOp_BR_CC(SDNode *N) {
1350 SDValue NewLHS = N->getOperand(2), NewRHS = N->getOperand(3);
1351 ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(1))->get();
1352 FloatExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc());
1354 // If ExpandSetCCOperands returned a scalar, we need to compare the result
1355 // against zero to select between true and false values.
1356 if (NewRHS.getNode() == 0) {
1357 NewRHS = DAG.getConstant(0, NewLHS.getValueType());
1358 CCCode = ISD::SETNE;
1361 // Update N to have the operands specified.
1362 return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0),
1363 DAG.getCondCode(CCCode), NewLHS, NewRHS,
1367 SDValue DAGTypeLegalizer::ExpandFloatOp_FP_ROUND(SDNode *N) {
1368 assert(N->getOperand(0).getValueType() == MVT::ppcf128 &&
1369 "Logic only correct for ppcf128!");
1371 GetExpandedFloat(N->getOperand(0), Lo, Hi);
1372 // Round it the rest of the way (e.g. to f32) if needed.
1373 return DAG.getNode(ISD::FP_ROUND, N->getDebugLoc(),
1374 N->getValueType(0), Hi, N->getOperand(1));
1377 SDValue DAGTypeLegalizer::ExpandFloatOp_FP_TO_SINT(SDNode *N) {
1378 MVT RVT = N->getValueType(0);
1379 DebugLoc dl = N->getDebugLoc();
1381 // Expand ppcf128 to i32 by hand for the benefit of llvm-gcc bootstrap on
1382 // PPC (the libcall is not available). FIXME: Do this in a less hacky way.
1383 if (RVT == MVT::i32) {
1384 assert(N->getOperand(0).getValueType() == MVT::ppcf128 &&
1385 "Logic only correct for ppcf128!");
1386 SDValue Res = DAG.getNode(ISD::FP_ROUND_INREG, dl, MVT::ppcf128,
1387 N->getOperand(0), DAG.getValueType(MVT::f64));
1388 Res = DAG.getNode(ISD::FP_ROUND, dl, MVT::f64, Res,
1389 DAG.getIntPtrConstant(1));
1390 return DAG.getNode(ISD::FP_TO_SINT, dl, MVT::i32, Res);
1393 RTLIB::Libcall LC = RTLIB::getFPTOSINT(N->getOperand(0).getValueType(), RVT);
1394 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_TO_SINT!");
1395 return MakeLibCall(LC, RVT, &N->getOperand(0), 1, false, dl);
1398 SDValue DAGTypeLegalizer::ExpandFloatOp_FP_TO_UINT(SDNode *N) {
1399 MVT RVT = N->getValueType(0);
1400 DebugLoc dl = N->getDebugLoc();
1402 // Expand ppcf128 to i32 by hand for the benefit of llvm-gcc bootstrap on
1403 // PPC (the libcall is not available). FIXME: Do this in a less hacky way.
1404 if (RVT == MVT::i32) {
1405 assert(N->getOperand(0).getValueType() == MVT::ppcf128 &&
1406 "Logic only correct for ppcf128!");
1407 const uint64_t TwoE31[] = {0x41e0000000000000LL, 0};
1408 APFloat APF = APFloat(APInt(128, 2, TwoE31));
1409 SDValue Tmp = DAG.getConstantFP(APF, MVT::ppcf128);
1410 // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X
1411 // FIXME: generated code sucks.
1412 return DAG.getNode(ISD::SELECT_CC, dl, MVT::i32, N->getOperand(0), Tmp,
1413 DAG.getNode(ISD::ADD, dl, MVT::i32,
1414 DAG.getNode(ISD::FP_TO_SINT, dl, MVT::i32,
1415 DAG.getNode(ISD::FSUB, dl,
1419 DAG.getConstant(0x80000000, MVT::i32)),
1420 DAG.getNode(ISD::FP_TO_SINT, dl,
1421 MVT::i32, N->getOperand(0)),
1422 DAG.getCondCode(ISD::SETGE));
1425 RTLIB::Libcall LC = RTLIB::getFPTOUINT(N->getOperand(0).getValueType(), RVT);
1426 assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_TO_UINT!");
1427 return MakeLibCall(LC, N->getValueType(0), &N->getOperand(0), 1, false, dl);
1430 SDValue DAGTypeLegalizer::ExpandFloatOp_SELECT_CC(SDNode *N) {
1431 SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1);
1432 ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(4))->get();
1433 FloatExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc());
1435 // If ExpandSetCCOperands returned a scalar, we need to compare the result
1436 // against zero to select between true and false values.
1437 if (NewRHS.getNode() == 0) {
1438 NewRHS = DAG.getConstant(0, NewLHS.getValueType());
1439 CCCode = ISD::SETNE;
1442 // Update N to have the operands specified.
1443 return DAG.UpdateNodeOperands(SDValue(N, 0), NewLHS, NewRHS,
1444 N->getOperand(2), N->getOperand(3),
1445 DAG.getCondCode(CCCode));
1448 SDValue DAGTypeLegalizer::ExpandFloatOp_SETCC(SDNode *N) {
1449 SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1);
1450 ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(2))->get();
1451 FloatExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc());
1453 // If ExpandSetCCOperands returned a scalar, use it.
1454 if (NewRHS.getNode() == 0) {
1455 assert(NewLHS.getValueType() == N->getValueType(0) &&
1456 "Unexpected setcc expansion!");
1460 // Otherwise, update N to have the operands specified.
1461 return DAG.UpdateNodeOperands(SDValue(N, 0), NewLHS, NewRHS,
1462 DAG.getCondCode(CCCode));
1465 SDValue DAGTypeLegalizer::ExpandFloatOp_STORE(SDNode *N, unsigned OpNo) {
1466 if (ISD::isNormalStore(N))
1467 return ExpandOp_NormalStore(N, OpNo);
1469 assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!");
1470 assert(OpNo == 1 && "Can only expand the stored value so far");
1471 StoreSDNode *ST = cast<StoreSDNode>(N);
1473 SDValue Chain = ST->getChain();
1474 SDValue Ptr = ST->getBasePtr();
1476 MVT NVT = TLI.getTypeToTransformTo(ST->getValue().getValueType());
1477 assert(NVT.isByteSized() && "Expanded type not byte sized!");
1478 assert(ST->getMemoryVT().bitsLE(NVT) && "Float type not round?");
1481 GetExpandedOp(ST->getValue(), Lo, Hi);
1483 return DAG.getTruncStore(Chain, N->getDebugLoc(), Hi, Ptr,
1484 ST->getSrcValue(), ST->getSrcValueOffset(),
1486 ST->isVolatile(), ST->getAlignment());