1 //===-- AutoUpgrade.cpp - Implement auto-upgrade helper functions ---------===//
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 the auto-upgrade helper functions
12 //===----------------------------------------------------------------------===//
14 #include "llvm/AutoUpgrade.h"
15 #include "llvm/Constants.h"
16 #include "llvm/Function.h"
17 #include "llvm/LLVMContext.h"
18 #include "llvm/Module.h"
19 #include "llvm/IntrinsicInst.h"
20 #include "llvm/ADT/SmallVector.h"
21 #include "llvm/Support/CallSite.h"
22 #include "llvm/Support/ErrorHandling.h"
23 #include "llvm/Support/IRBuilder.h"
28 static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
29 assert(F && "Illegal to upgrade a non-existent Function.");
31 // Get the Function's name.
32 const std::string& Name = F->getName();
35 const FunctionType *FTy = F->getFunctionType();
37 // Quickly eliminate it, if it's not a candidate.
38 if (Name.length() <= 8 || Name[0] != 'l' || Name[1] != 'l' ||
39 Name[2] != 'v' || Name[3] != 'm' || Name[4] != '.')
42 Module *M = F->getParent();
46 // This upgrades the llvm.atomic.lcs, llvm.atomic.las, llvm.atomic.lss,
47 // and atomics with default address spaces to their new names to their new
48 // function name (e.g. llvm.atomic.add.i32 => llvm.atomic.add.i32.p0i32)
49 if (Name.compare(5,7,"atomic.",7) == 0) {
50 if (Name.compare(12,3,"lcs",3) == 0) {
51 std::string::size_type delim = Name.find('.',12);
52 F->setName("llvm.atomic.cmp.swap" + Name.substr(delim) +
53 ".p0" + Name.substr(delim+1));
57 else if (Name.compare(12,3,"las",3) == 0) {
58 std::string::size_type delim = Name.find('.',12);
59 F->setName("llvm.atomic.load.add"+Name.substr(delim)
60 + ".p0" + Name.substr(delim+1));
64 else if (Name.compare(12,3,"lss",3) == 0) {
65 std::string::size_type delim = Name.find('.',12);
66 F->setName("llvm.atomic.load.sub"+Name.substr(delim)
67 + ".p0" + Name.substr(delim+1));
71 else if (Name.rfind(".p") == std::string::npos) {
72 // We don't have an address space qualifier so this has be upgraded
73 // to the new name. Copy the type name at the end of the intrinsic
75 std::string::size_type delim = Name.find_last_of('.');
76 assert(delim != std::string::npos && "can not find type");
77 F->setName(Name + ".p0" + Name.substr(delim+1));
81 } else if (Name.compare(5, 9, "arm.neon.", 9) == 0) {
82 if (((Name.compare(14, 5, "vmovl", 5) == 0 ||
83 Name.compare(14, 5, "vaddl", 5) == 0 ||
84 Name.compare(14, 5, "vsubl", 5) == 0 ||
85 Name.compare(14, 5, "vaddw", 5) == 0 ||
86 Name.compare(14, 5, "vsubw", 5) == 0 ||
87 Name.compare(14, 5, "vmlal", 5) == 0 ||
88 Name.compare(14, 5, "vmlsl", 5) == 0 ||
89 Name.compare(14, 5, "vabdl", 5) == 0 ||
90 Name.compare(14, 5, "vabal", 5) == 0) &&
91 (Name.compare(19, 2, "s.", 2) == 0 ||
92 Name.compare(19, 2, "u.", 2) == 0)) ||
94 (Name.compare(14, 4, "vaba", 4) == 0 &&
95 (Name.compare(18, 2, "s.", 2) == 0 ||
96 Name.compare(18, 2, "u.", 2) == 0)) ||
98 (Name.compare(14, 6, "vmovn.", 6) == 0)) {
100 // Calls to these are transformed into IR without intrinsics.
104 // Old versions of NEON ld/st intrinsics are missing alignment arguments.
105 bool isVLd = (Name.compare(14, 3, "vld", 3) == 0);
106 bool isVSt = (Name.compare(14, 3, "vst", 3) == 0);
107 if (isVLd || isVSt) {
108 unsigned NumVecs = Name.at(17) - '0';
109 if (NumVecs == 0 || NumVecs > 4)
111 bool isLaneOp = (Name.compare(18, 5, "lane.", 5) == 0);
112 if (!isLaneOp && Name.at(18) != '.')
114 unsigned ExpectedArgs = 2; // for the address and alignment
115 if (isVSt || isLaneOp)
116 ExpectedArgs += NumVecs;
118 ExpectedArgs += 1; // for the lane number
119 unsigned NumP = FTy->getNumParams();
120 if (NumP != ExpectedArgs - 1)
123 // Change the name of the old (bad) intrinsic, because
124 // its type is incorrect, but we cannot overload that name.
127 // One argument is missing: add the alignment argument.
128 std::vector<const Type*> NewParams;
129 for (unsigned p = 0; p < NumP; ++p)
130 NewParams.push_back(FTy->getParamType(p));
131 NewParams.push_back(Type::getInt32Ty(F->getContext()));
132 FunctionType *NewFTy = FunctionType::get(FTy->getReturnType(),
134 NewFn = cast<Function>(M->getOrInsertFunction(Name, NewFTy));
140 // This upgrades the name of the llvm.bswap intrinsic function to only use
141 // a single type name for overloading. We only care about the old format
142 // 'llvm.bswap.i*.i*', so check for 'bswap.' and then for there being
143 // a '.' after 'bswap.'
144 if (Name.compare(5,6,"bswap.",6) == 0) {
145 std::string::size_type delim = Name.find('.',11);
147 if (delim != std::string::npos) {
148 // Construct the new name as 'llvm.bswap' + '.i*'
149 F->setName(Name.substr(0,10)+Name.substr(delim));
157 // We only want to fix the 'llvm.ct*' intrinsics which do not have the
158 // correct return type, so we check for the name, and then check if the
159 // return type does not match the parameter type.
160 if ( (Name.compare(5,5,"ctpop",5) == 0 ||
161 Name.compare(5,4,"ctlz",4) == 0 ||
162 Name.compare(5,4,"cttz",4) == 0) &&
163 FTy->getReturnType() != FTy->getParamType(0)) {
164 // We first need to change the name of the old (bad) intrinsic, because
165 // its type is incorrect, but we cannot overload that name. We
166 // arbitrarily unique it here allowing us to construct a correctly named
167 // and typed function below.
170 // Now construct the new intrinsic with the correct name and type. We
171 // leave the old function around in order to query its type, whatever it
172 // may be, and correctly convert up to the new type.
173 NewFn = cast<Function>(M->getOrInsertFunction(Name,
174 FTy->getParamType(0),
175 FTy->getParamType(0),
182 // The old llvm.eh.selector.i32 is equivalent to the new llvm.eh.selector.
183 if (Name.compare("llvm.eh.selector.i32") == 0) {
184 F->setName("llvm.eh.selector");
188 // The old llvm.eh.typeid.for.i32 is equivalent to llvm.eh.typeid.for.
189 if (Name.compare("llvm.eh.typeid.for.i32") == 0) {
190 F->setName("llvm.eh.typeid.for");
194 // Convert the old llvm.eh.selector.i64 to a call to llvm.eh.selector.
195 if (Name.compare("llvm.eh.selector.i64") == 0) {
196 NewFn = Intrinsic::getDeclaration(M, Intrinsic::eh_selector);
199 // Convert the old llvm.eh.typeid.for.i64 to a call to llvm.eh.typeid.for.
200 if (Name.compare("llvm.eh.typeid.for.i64") == 0) {
201 NewFn = Intrinsic::getDeclaration(M, Intrinsic::eh_typeid_for);
207 // This upgrades the llvm.memcpy, llvm.memmove, and llvm.memset to the
208 // new format that allows overloading the pointer for different address
209 // space (e.g., llvm.memcpy.i16 => llvm.memcpy.p0i8.p0i8.i16)
210 const char* NewFnName = NULL;
211 if (Name.compare(5,8,"memcpy.i",8) == 0) {
213 NewFnName = "llvm.memcpy.p0i8.p0i8.i8";
214 else if (Name.compare(13,2,"16") == 0)
215 NewFnName = "llvm.memcpy.p0i8.p0i8.i16";
216 else if (Name.compare(13,2,"32") == 0)
217 NewFnName = "llvm.memcpy.p0i8.p0i8.i32";
218 else if (Name.compare(13,2,"64") == 0)
219 NewFnName = "llvm.memcpy.p0i8.p0i8.i64";
220 } else if (Name.compare(5,9,"memmove.i",9) == 0) {
222 NewFnName = "llvm.memmove.p0i8.p0i8.i8";
223 else if (Name.compare(14,2,"16") == 0)
224 NewFnName = "llvm.memmove.p0i8.p0i8.i16";
225 else if (Name.compare(14,2,"32") == 0)
226 NewFnName = "llvm.memmove.p0i8.p0i8.i32";
227 else if (Name.compare(14,2,"64") == 0)
228 NewFnName = "llvm.memmove.p0i8.p0i8.i64";
230 else if (Name.compare(5,8,"memset.i",8) == 0) {
232 NewFnName = "llvm.memset.p0i8.i8";
233 else if (Name.compare(13,2,"16") == 0)
234 NewFnName = "llvm.memset.p0i8.i16";
235 else if (Name.compare(13,2,"32") == 0)
236 NewFnName = "llvm.memset.p0i8.i32";
237 else if (Name.compare(13,2,"64") == 0)
238 NewFnName = "llvm.memset.p0i8.i64";
241 NewFn = cast<Function>(M->getOrInsertFunction(NewFnName,
242 FTy->getReturnType(),
243 FTy->getParamType(0),
244 FTy->getParamType(1),
245 FTy->getParamType(2),
246 FTy->getParamType(3),
247 Type::getInt1Ty(F->getContext()),
254 // This upgrades the llvm.part.select overloaded intrinsic names to only
255 // use one type specifier in the name. We only care about the old format
256 // 'llvm.part.select.i*.i*', and solve as above with bswap.
257 if (Name.compare(5,12,"part.select.",12) == 0) {
258 std::string::size_type delim = Name.find('.',17);
260 if (delim != std::string::npos) {
261 // Construct a new name as 'llvm.part.select' + '.i*'
262 F->setName(Name.substr(0,16)+Name.substr(delim));
269 // This upgrades the llvm.part.set intrinsics similarly as above, however
270 // we care about 'llvm.part.set.i*.i*.i*', but only the first two types
271 // must match. There is an additional type specifier after these two
272 // matching types that we must retain when upgrading. Thus, we require
273 // finding 2 periods, not just one, after the intrinsic name.
274 if (Name.compare(5,9,"part.set.",9) == 0) {
275 std::string::size_type delim = Name.find('.',14);
277 if (delim != std::string::npos &&
278 Name.find('.',delim+1) != std::string::npos) {
279 // Construct a new name as 'llvm.part.select' + '.i*.i*'
280 F->setName(Name.substr(0,13)+Name.substr(delim));
289 // This fixes all MMX shift intrinsic instructions to take a
290 // x86_mmx instead of a v1i64, v2i32, v4i16, or v8i8.
291 if (Name.compare(5, 8, "x86.mmx.", 8) == 0) {
292 const Type *X86_MMXTy = VectorType::getX86_MMXTy(FTy->getContext());
294 if (Name.compare(13, 4, "padd", 4) == 0 ||
295 Name.compare(13, 4, "psub", 4) == 0 ||
296 Name.compare(13, 4, "pmul", 4) == 0 ||
297 Name.compare(13, 5, "pmadd", 5) == 0 ||
298 Name.compare(13, 4, "pand", 4) == 0 ||
299 Name.compare(13, 3, "por", 3) == 0 ||
300 Name.compare(13, 4, "pxor", 4) == 0 ||
301 Name.compare(13, 4, "pavg", 4) == 0 ||
302 Name.compare(13, 4, "pmax", 4) == 0 ||
303 Name.compare(13, 4, "pmin", 4) == 0 ||
304 Name.compare(13, 4, "psad", 4) == 0 ||
305 Name.compare(13, 4, "psll", 4) == 0 ||
306 Name.compare(13, 4, "psrl", 4) == 0 ||
307 Name.compare(13, 4, "psra", 4) == 0 ||
308 Name.compare(13, 4, "pack", 4) == 0 ||
309 Name.compare(13, 6, "punpck", 6) == 0 ||
310 Name.compare(13, 4, "pcmp", 4) == 0) {
311 assert(FTy->getNumParams() == 2 && "MMX intrinsic takes 2 args!");
312 const Type *SecondParamTy = X86_MMXTy;
314 if (Name.compare(13, 5, "pslli", 5) == 0 ||
315 Name.compare(13, 5, "psrli", 5) == 0 ||
316 Name.compare(13, 5, "psrai", 5) == 0)
317 SecondParamTy = FTy->getParamType(1);
319 // Don't do anything if it has the correct types.
320 if (FTy->getReturnType() == X86_MMXTy &&
321 FTy->getParamType(0) == X86_MMXTy &&
322 FTy->getParamType(1) == SecondParamTy)
325 // We first need to change the name of the old (bad) intrinsic, because
326 // its type is incorrect, but we cannot overload that name. We
327 // arbitrarily unique it here allowing us to construct a correctly named
328 // and typed function below.
331 // Now construct the new intrinsic with the correct name and type. We
332 // leave the old function around in order to query its type, whatever it
333 // may be, and correctly convert up to the new type.
334 NewFn = cast<Function>(M->getOrInsertFunction(Name,
335 X86_MMXTy, X86_MMXTy,
336 SecondParamTy, (Type*)0));
340 if (Name.compare(13, 8, "maskmovq", 8) == 0) {
341 // Don't do anything if it has the correct types.
342 if (FTy->getParamType(0) == X86_MMXTy &&
343 FTy->getParamType(1) == X86_MMXTy)
347 NewFn = cast<Function>(M->getOrInsertFunction(Name,
348 FTy->getReturnType(),
351 FTy->getParamType(2),
356 if (Name.compare(13, 8, "pmovmskb", 8) == 0) {
357 if (FTy->getParamType(0) == X86_MMXTy)
361 NewFn = cast<Function>(M->getOrInsertFunction(Name,
362 FTy->getReturnType(),
368 if (Name.compare(13, 5, "movnt", 5) == 0) {
369 if (FTy->getParamType(1) == X86_MMXTy)
373 NewFn = cast<Function>(M->getOrInsertFunction(Name,
374 FTy->getReturnType(),
375 FTy->getParamType(0),
381 if (Name.compare(13, 7, "palignr", 7) == 0) {
382 if (FTy->getReturnType() == X86_MMXTy &&
383 FTy->getParamType(0) == X86_MMXTy &&
384 FTy->getParamType(1) == X86_MMXTy)
388 NewFn = cast<Function>(M->getOrInsertFunction(Name,
392 FTy->getParamType(2),
397 if (Name.compare(13, 5, "pextr", 5) == 0) {
398 if (FTy->getParamType(0) == X86_MMXTy)
402 NewFn = cast<Function>(M->getOrInsertFunction(Name,
403 FTy->getReturnType(),
405 FTy->getParamType(1),
410 if (Name.compare(13, 5, "pinsr", 5) == 0) {
411 if (FTy->getReturnType() == X86_MMXTy &&
412 FTy->getParamType(0) == X86_MMXTy)
416 NewFn = cast<Function>(M->getOrInsertFunction(Name,
419 FTy->getParamType(1),
420 FTy->getParamType(2),
425 if (Name.compare(13, 12, "cvtsi32.si64", 12) == 0) {
426 if (FTy->getReturnType() == X86_MMXTy)
430 NewFn = cast<Function>(M->getOrInsertFunction(Name,
432 FTy->getParamType(0),
437 if (Name.compare(13, 12, "cvtsi64.si32", 12) == 0) {
438 if (FTy->getParamType(0) == X86_MMXTy)
442 NewFn = cast<Function>(M->getOrInsertFunction(Name,
443 FTy->getReturnType(),
449 if (Name.compare(13, 8, "vec.init", 8) == 0) {
450 if (FTy->getReturnType() == X86_MMXTy)
455 if (Name.compare(21, 2, ".b", 2) == 0)
456 NewFn = cast<Function>(M->getOrInsertFunction(Name,
458 FTy->getParamType(0),
459 FTy->getParamType(1),
460 FTy->getParamType(2),
461 FTy->getParamType(3),
462 FTy->getParamType(4),
463 FTy->getParamType(5),
464 FTy->getParamType(6),
465 FTy->getParamType(7),
467 else if (Name.compare(21, 2, ".w", 2) == 0)
468 NewFn = cast<Function>(M->getOrInsertFunction(Name,
470 FTy->getParamType(0),
471 FTy->getParamType(1),
472 FTy->getParamType(2),
473 FTy->getParamType(3),
475 else if (Name.compare(21, 2, ".d", 2) == 0)
476 NewFn = cast<Function>(M->getOrInsertFunction(Name,
478 FTy->getParamType(0),
479 FTy->getParamType(1),
485 if (Name.compare(13, 9, "vec.ext.d", 9) == 0) {
486 if (FTy->getReturnType() == X86_MMXTy &&
487 FTy->getParamType(0) == X86_MMXTy)
491 NewFn = cast<Function>(M->getOrInsertFunction(Name,
494 FTy->getParamType(1),
499 if (Name.compare(13, 9, "emms", 4) == 0 ||
500 Name.compare(13, 9, "femms", 5) == 0) {
505 // We really shouldn't get here ever.
506 assert(0 && "Invalid MMX intrinsic!");
508 } else if (Name.compare(5,17,"x86.sse2.loadh.pd",17) == 0 ||
509 Name.compare(5,17,"x86.sse2.loadl.pd",17) == 0 ||
510 Name.compare(5,16,"x86.sse2.movl.dq",16) == 0 ||
511 Name.compare(5,15,"x86.sse2.movs.d",15) == 0 ||
512 Name.compare(5,16,"x86.sse2.shuf.pd",16) == 0 ||
513 Name.compare(5,18,"x86.sse2.unpckh.pd",18) == 0 ||
514 Name.compare(5,18,"x86.sse2.unpckl.pd",18) == 0 ||
515 Name.compare(5,20,"x86.sse2.punpckh.qdq",20) == 0 ||
516 Name.compare(5,20,"x86.sse2.punpckl.qdq",20) == 0) {
517 // Calls to these intrinsics are transformed into ShuffleVector's.
520 } else if (Name.compare(5, 16, "x86.sse41.pmulld", 16) == 0) {
521 // Calls to these intrinsics are transformed into vector multiplies.
524 } else if (Name.compare(5, 18, "x86.ssse3.palign.r", 18) == 0 ||
525 Name.compare(5, 22, "x86.ssse3.palign.r.128", 22) == 0) {
526 // Calls to these intrinsics are transformed into vector shuffles, shifts,
530 } else if (Name.compare(5, 16, "x86.sse.loadu.ps", 16) == 0 ||
531 Name.compare(5, 17, "x86.sse2.loadu.dq", 17) == 0 ||
532 Name.compare(5, 17, "x86.sse2.loadu.pd", 17) == 0) {
533 // Calls to these instructions are transformed into unaligned loads.
536 } else if (Name.compare(5, 16, "x86.sse.movnt.ps", 16) == 0 ||
537 Name.compare(5, 17, "x86.sse2.movnt.dq", 17) == 0 ||
538 Name.compare(5, 17, "x86.sse2.movnt.pd", 17) == 0 ||
539 Name.compare(5, 17, "x86.sse2.movnt.i", 16) == 0) {
540 // Calls to these instructions are transformed into nontemporal stores.
543 } else if (Name.compare(5, 17, "x86.ssse3.pshuf.w", 17) == 0) {
544 // This is an SSE/MMX instruction.
545 const Type *X86_MMXTy = VectorType::getX86_MMXTy(FTy->getContext());
547 cast<Function>(M->getOrInsertFunction("llvm.x86.sse.pshuf.w",
550 Type::getInt8Ty(F->getContext()),
558 // This may not belong here. This function is effectively being overloaded
559 // to both detect an intrinsic which needs upgrading, and to provide the
560 // upgraded form of the intrinsic. We should perhaps have two separate
561 // functions for this.
565 bool llvm::UpgradeIntrinsicFunction(Function *F, Function *&NewFn) {
567 bool Upgraded = UpgradeIntrinsicFunction1(F, NewFn);
569 // Upgrade intrinsic attributes. This does not change the function.
572 if (unsigned id = F->getIntrinsicID())
573 F->setAttributes(Intrinsic::getAttributes((Intrinsic::ID)id));
577 bool llvm::UpgradeGlobalVariable(GlobalVariable *GV) {
578 StringRef Name(GV->getName());
580 // We are only upgrading one symbol here.
581 if (Name == ".llvm.eh.catch.all.value") {
582 GV->setName("llvm.eh.catch.all.value");
589 /// ExtendNEONArgs - For NEON "long" and "wide" operations, where the results
590 /// have vector elements twice as big as one or both source operands, do the
591 /// sign- or zero-extension that used to be handled by intrinsics. The
592 /// extended values are returned via V0 and V1.
593 static void ExtendNEONArgs(CallInst *CI, Value *Arg0, Value *Arg1,
594 Value *&V0, Value *&V1) {
595 Function *F = CI->getCalledFunction();
596 const std::string& Name = F->getName();
597 bool isLong = (Name.at(18) == 'l');
598 bool isSigned = (Name.at(19) == 's');
602 V0 = new SExtInst(Arg0, CI->getType(), "", CI);
605 V1 = new SExtInst(Arg1, CI->getType(), "", CI);
608 V0 = new ZExtInst(Arg0, CI->getType(), "", CI);
611 V1 = new ZExtInst(Arg1, CI->getType(), "", CI);
615 /// CallVABD - As part of expanding a call to one of the old NEON vabdl, vaba,
616 /// or vabal intrinsics, construct a call to a vabd intrinsic. Examine the
617 /// name of the old intrinsic to determine whether to use a signed or unsigned
618 /// vabd intrinsic. Get the type from the old call instruction, adjusted for
619 /// half-size vector elements if the old intrinsic was vabdl or vabal.
620 static Instruction *CallVABD(CallInst *CI, Value *Arg0, Value *Arg1) {
621 Function *F = CI->getCalledFunction();
622 const std::string& Name = F->getName();
623 bool isLong = (Name.at(18) == 'l');
624 bool isSigned = (Name.at(isLong ? 19 : 18) == 's');
628 intID = Intrinsic::arm_neon_vabds;
630 intID = Intrinsic::arm_neon_vabdu;
632 const Type *Ty = CI->getType();
634 Ty = VectorType::getTruncatedElementVectorType(cast<const VectorType>(Ty));
636 Function *VABD = Intrinsic::getDeclaration(F->getParent(), intID, &Ty, 1);
640 return CallInst::Create(VABD, Operands, Operands+2,
641 "upgraded."+CI->getName(), CI);
644 /// ConstructNewCallInst - Construct a new CallInst with the signature of NewFn.
645 static void ConstructNewCallInst(Function *NewFn, CallInst *OldCI,
646 Value **Operands, unsigned NumOps,
647 bool AssignName = true) {
648 // Construct a new CallInst.
650 CallInst::Create(NewFn, Operands, Operands + NumOps,
651 AssignName ? "upgraded." + OldCI->getName() : "", OldCI);
653 NewCI->setTailCall(OldCI->isTailCall());
654 NewCI->setCallingConv(OldCI->getCallingConv());
656 // Handle any uses of the old CallInst. If the type has changed, add a cast.
657 if (!OldCI->use_empty()) {
658 if (OldCI->getType() != NewCI->getType()) {
659 Function *OldFn = OldCI->getCalledFunction();
661 CastInst::Create(CastInst::getCastOpcode(NewCI, true,
662 OldFn->getReturnType(), true),
663 NewCI, OldFn->getReturnType(), NewCI->getName(),OldCI);
665 // Replace all uses of the old call with the new cast which has the
667 OldCI->replaceAllUsesWith(RetCast);
669 OldCI->replaceAllUsesWith(NewCI);
673 // Clean up the old call now that it has been completely upgraded.
674 OldCI->eraseFromParent();
677 // UpgradeIntrinsicCall - Upgrade a call to an old intrinsic to be a call the
678 // upgraded intrinsic. All argument and return casting must be provided in
679 // order to seamlessly integrate with existing context.
680 void llvm::UpgradeIntrinsicCall(CallInst *CI, Function *NewFn) {
681 Function *F = CI->getCalledFunction();
682 LLVMContext &C = CI->getContext();
683 ImmutableCallSite CS(CI);
685 assert(F && "CallInst has no function associated with it.");
688 // Get the Function's name.
689 const std::string& Name = F->getName();
691 // Upgrade ARM NEON intrinsics.
692 if (Name.compare(5, 9, "arm.neon.", 9) == 0) {
695 if (Name.compare(14, 7, "vmovls.", 7) == 0) {
696 NewI = new SExtInst(CI->getArgOperand(0), CI->getType(),
697 "upgraded." + CI->getName(), CI);
698 } else if (Name.compare(14, 7, "vmovlu.", 7) == 0) {
699 NewI = new ZExtInst(CI->getArgOperand(0), CI->getType(),
700 "upgraded." + CI->getName(), CI);
701 } else if (Name.compare(14, 4, "vadd", 4) == 0) {
702 ExtendNEONArgs(CI, CI->getArgOperand(0), CI->getArgOperand(1), V0, V1);
703 NewI = BinaryOperator::CreateAdd(V0, V1, "upgraded."+CI->getName(), CI);
704 } else if (Name.compare(14, 4, "vsub", 4) == 0) {
705 ExtendNEONArgs(CI, CI->getArgOperand(0), CI->getArgOperand(1), V0, V1);
706 NewI = BinaryOperator::CreateSub(V0, V1,"upgraded."+CI->getName(),CI);
707 } else if (Name.compare(14, 4, "vmul", 4) == 0) {
708 ExtendNEONArgs(CI, CI->getArgOperand(0), CI->getArgOperand(1), V0, V1);
709 NewI = BinaryOperator::CreateMul(V0, V1,"upgraded."+CI->getName(),CI);
710 } else if (Name.compare(14, 4, "vmla", 4) == 0) {
711 ExtendNEONArgs(CI, CI->getArgOperand(1), CI->getArgOperand(2), V0, V1);
712 Instruction *MulI = BinaryOperator::CreateMul(V0, V1, "", CI);
713 NewI = BinaryOperator::CreateAdd(CI->getArgOperand(0), MulI,
714 "upgraded."+CI->getName(), CI);
715 } else if (Name.compare(14, 4, "vmls", 4) == 0) {
716 ExtendNEONArgs(CI, CI->getArgOperand(1), CI->getArgOperand(2), V0, V1);
717 Instruction *MulI = BinaryOperator::CreateMul(V0, V1, "", CI);
718 NewI = BinaryOperator::CreateSub(CI->getArgOperand(0), MulI,
719 "upgraded."+CI->getName(), CI);
720 } else if (Name.compare(14, 4, "vabd", 4) == 0) {
721 NewI = CallVABD(CI, CI->getArgOperand(0), CI->getArgOperand(1));
722 NewI = new ZExtInst(NewI, CI->getType(), "upgraded."+CI->getName(), CI);
723 } else if (Name.compare(14, 4, "vaba", 4) == 0) {
724 NewI = CallVABD(CI, CI->getArgOperand(1), CI->getArgOperand(2));
725 if (Name.at(18) == 'l')
726 NewI = new ZExtInst(NewI, CI->getType(), "", CI);
727 NewI = BinaryOperator::CreateAdd(CI->getArgOperand(0), NewI,
728 "upgraded."+CI->getName(), CI);
729 } else if (Name.compare(14, 6, "vmovn.", 6) == 0) {
730 NewI = new TruncInst(CI->getArgOperand(0), CI->getType(),
731 "upgraded." + CI->getName(), CI);
733 llvm_unreachable("Unknown arm.neon function for CallInst upgrade.");
735 // Replace any uses of the old CallInst.
736 if (!CI->use_empty())
737 CI->replaceAllUsesWith(NewI);
738 CI->eraseFromParent();
742 bool isLoadH = false, isLoadL = false, isMovL = false;
743 bool isMovSD = false, isShufPD = false;
744 bool isUnpckhPD = false, isUnpcklPD = false;
745 bool isPunpckhQPD = false, isPunpcklQPD = false;
746 if (F->getName() == "llvm.x86.sse2.loadh.pd")
748 else if (F->getName() == "llvm.x86.sse2.loadl.pd")
750 else if (F->getName() == "llvm.x86.sse2.movl.dq")
752 else if (F->getName() == "llvm.x86.sse2.movs.d")
754 else if (F->getName() == "llvm.x86.sse2.shuf.pd")
756 else if (F->getName() == "llvm.x86.sse2.unpckh.pd")
758 else if (F->getName() == "llvm.x86.sse2.unpckl.pd")
760 else if (F->getName() == "llvm.x86.sse2.punpckh.qdq")
762 else if (F->getName() == "llvm.x86.sse2.punpckl.qdq")
765 if (isLoadH || isLoadL || isMovL || isMovSD || isShufPD ||
766 isUnpckhPD || isUnpcklPD || isPunpckhQPD || isPunpcklQPD) {
767 std::vector<Constant*> Idxs;
768 Value *Op0 = CI->getArgOperand(0);
769 ShuffleVectorInst *SI = NULL;
770 if (isLoadH || isLoadL) {
771 Value *Op1 = UndefValue::get(Op0->getType());
772 Value *Addr = new BitCastInst(CI->getArgOperand(1),
773 Type::getDoublePtrTy(C),
775 Value *Load = new LoadInst(Addr, "upgraded.", false, 8, CI);
776 Value *Idx = ConstantInt::get(Type::getInt32Ty(C), 0);
777 Op1 = InsertElementInst::Create(Op1, Load, Idx, "upgraded.", CI);
780 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 0));
781 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
783 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
784 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
786 Value *Mask = ConstantVector::get(Idxs);
787 SI = new ShuffleVectorInst(Op0, Op1, Mask, "upgraded.", CI);
789 Constant *Zero = ConstantInt::get(Type::getInt32Ty(C), 0);
790 Idxs.push_back(Zero);
791 Idxs.push_back(Zero);
792 Idxs.push_back(Zero);
793 Idxs.push_back(Zero);
794 Value *ZeroV = ConstantVector::get(Idxs);
797 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 4));
798 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 5));
799 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
800 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 3));
801 Value *Mask = ConstantVector::get(Idxs);
802 SI = new ShuffleVectorInst(ZeroV, Op0, Mask, "upgraded.", CI);
803 } else if (isMovSD ||
804 isUnpckhPD || isUnpcklPD || isPunpckhQPD || isPunpcklQPD) {
805 Value *Op1 = CI->getArgOperand(1);
807 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
808 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
809 } else if (isUnpckhPD || isPunpckhQPD) {
810 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
811 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 3));
813 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 0));
814 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
816 Value *Mask = ConstantVector::get(Idxs);
817 SI = new ShuffleVectorInst(Op0, Op1, Mask, "upgraded.", CI);
818 } else if (isShufPD) {
819 Value *Op1 = CI->getArgOperand(1);
821 cast<ConstantInt>(CI->getArgOperand(2))->getZExtValue();
822 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), MaskVal & 1));
823 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C),
824 ((MaskVal >> 1) & 1)+2));
825 Value *Mask = ConstantVector::get(Idxs);
826 SI = new ShuffleVectorInst(Op0, Op1, Mask, "upgraded.", CI);
829 assert(SI && "Unexpected!");
831 // Handle any uses of the old CallInst.
832 if (!CI->use_empty())
833 // Replace all uses of the old call with the new cast which has the
835 CI->replaceAllUsesWith(SI);
837 // Clean up the old call now that it has been completely upgraded.
838 CI->eraseFromParent();
839 } else if (F->getName() == "llvm.x86.sse41.pmulld") {
840 // Upgrade this set of intrinsics into vector multiplies.
841 Instruction *Mul = BinaryOperator::CreateMul(CI->getArgOperand(0),
842 CI->getArgOperand(1),
845 // Fix up all the uses with our new multiply.
846 if (!CI->use_empty())
847 CI->replaceAllUsesWith(Mul);
849 // Remove upgraded multiply.
850 CI->eraseFromParent();
851 } else if (F->getName() == "llvm.x86.ssse3.palign.r") {
852 Value *Op1 = CI->getArgOperand(0);
853 Value *Op2 = CI->getArgOperand(1);
854 Value *Op3 = CI->getArgOperand(2);
855 unsigned shiftVal = cast<ConstantInt>(Op3)->getZExtValue();
857 IRBuilder<> Builder(C);
858 Builder.SetInsertPoint(CI->getParent(), CI);
860 // If palignr is shifting the pair of input vectors less than 9 bytes,
861 // emit a shuffle instruction.
863 const Type *IntTy = Type::getInt32Ty(C);
864 const Type *EltTy = Type::getInt8Ty(C);
865 const Type *VecTy = VectorType::get(EltTy, 8);
867 Op2 = Builder.CreateBitCast(Op2, VecTy);
868 Op1 = Builder.CreateBitCast(Op1, VecTy);
870 llvm::SmallVector<llvm::Constant*, 8> Indices;
871 for (unsigned i = 0; i != 8; ++i)
872 Indices.push_back(ConstantInt::get(IntTy, shiftVal + i));
874 Value *SV = ConstantVector::get(Indices);
875 Rep = Builder.CreateShuffleVector(Op2, Op1, SV, "palignr");
876 Rep = Builder.CreateBitCast(Rep, F->getReturnType());
879 // If palignr is shifting the pair of input vectors more than 8 but less
880 // than 16 bytes, emit a logical right shift of the destination.
881 else if (shiftVal < 16) {
882 // MMX has these as 1 x i64 vectors for some odd optimization reasons.
883 const Type *EltTy = Type::getInt64Ty(C);
884 const Type *VecTy = VectorType::get(EltTy, 1);
886 Op1 = Builder.CreateBitCast(Op1, VecTy, "cast");
887 Op2 = ConstantInt::get(VecTy, (shiftVal-8) * 8);
889 // create i32 constant
891 Intrinsic::getDeclaration(F->getParent(), Intrinsic::x86_mmx_psrl_q);
892 Rep = Builder.CreateCall2(I, Op1, Op2, "palignr");
895 // If palignr is shifting the pair of vectors more than 32 bytes, emit zero.
897 Rep = Constant::getNullValue(F->getReturnType());
900 // Replace any uses with our new instruction.
901 if (!CI->use_empty())
902 CI->replaceAllUsesWith(Rep);
904 // Remove upgraded instruction.
905 CI->eraseFromParent();
907 } else if (F->getName() == "llvm.x86.ssse3.palign.r.128") {
908 Value *Op1 = CI->getArgOperand(0);
909 Value *Op2 = CI->getArgOperand(1);
910 Value *Op3 = CI->getArgOperand(2);
911 unsigned shiftVal = cast<ConstantInt>(Op3)->getZExtValue();
913 IRBuilder<> Builder(C);
914 Builder.SetInsertPoint(CI->getParent(), CI);
916 // If palignr is shifting the pair of input vectors less than 17 bytes,
917 // emit a shuffle instruction.
918 if (shiftVal <= 16) {
919 const Type *IntTy = Type::getInt32Ty(C);
920 const Type *EltTy = Type::getInt8Ty(C);
921 const Type *VecTy = VectorType::get(EltTy, 16);
923 Op2 = Builder.CreateBitCast(Op2, VecTy);
924 Op1 = Builder.CreateBitCast(Op1, VecTy);
926 llvm::SmallVector<llvm::Constant*, 16> Indices;
927 for (unsigned i = 0; i != 16; ++i)
928 Indices.push_back(ConstantInt::get(IntTy, shiftVal + i));
930 Value *SV = ConstantVector::get(Indices);
931 Rep = Builder.CreateShuffleVector(Op2, Op1, SV, "palignr");
932 Rep = Builder.CreateBitCast(Rep, F->getReturnType());
935 // If palignr is shifting the pair of input vectors more than 16 but less
936 // than 32 bytes, emit a logical right shift of the destination.
937 else if (shiftVal < 32) {
938 const Type *EltTy = Type::getInt64Ty(C);
939 const Type *VecTy = VectorType::get(EltTy, 2);
940 const Type *IntTy = Type::getInt32Ty(C);
942 Op1 = Builder.CreateBitCast(Op1, VecTy, "cast");
943 Op2 = ConstantInt::get(IntTy, (shiftVal-16) * 8);
945 // create i32 constant
947 Intrinsic::getDeclaration(F->getParent(), Intrinsic::x86_sse2_psrl_dq);
948 Rep = Builder.CreateCall2(I, Op1, Op2, "palignr");
951 // If palignr is shifting the pair of vectors more than 32 bytes, emit zero.
953 Rep = Constant::getNullValue(F->getReturnType());
956 // Replace any uses with our new instruction.
957 if (!CI->use_empty())
958 CI->replaceAllUsesWith(Rep);
960 // Remove upgraded instruction.
961 CI->eraseFromParent();
963 } else if (F->getName() == "llvm.x86.sse.loadu.ps" ||
964 F->getName() == "llvm.x86.sse2.loadu.dq" ||
965 F->getName() == "llvm.x86.sse2.loadu.pd") {
966 // Convert to a native, unaligned load.
967 const Type *VecTy = CI->getType();
968 const Type *IntTy = IntegerType::get(C, 128);
969 IRBuilder<> Builder(C);
970 Builder.SetInsertPoint(CI->getParent(), CI);
972 Value *BC = Builder.CreateBitCast(CI->getArgOperand(0),
973 PointerType::getUnqual(IntTy),
975 LoadInst *LI = Builder.CreateLoad(BC, CI->getName());
976 LI->setAlignment(1); // Unaligned load.
977 BC = Builder.CreateBitCast(LI, VecTy, "new.cast");
979 // Fix up all the uses with our new load.
980 if (!CI->use_empty())
981 CI->replaceAllUsesWith(BC);
984 CI->eraseFromParent();
985 } else if (F->getName() == "llvm.x86.sse.movnt.ps" ||
986 F->getName() == "llvm.x86.sse2.movnt.dq" ||
987 F->getName() == "llvm.x86.sse2.movnt.pd" ||
988 F->getName() == "llvm.x86.sse2.movnt.i") {
989 IRBuilder<> Builder(C);
990 Builder.SetInsertPoint(CI->getParent(), CI);
992 Module *M = F->getParent();
993 SmallVector<Value *, 1> Elts;
994 Elts.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
995 MDNode *Node = MDNode::get(C, Elts);
997 Value *Arg0 = CI->getArgOperand(0);
998 Value *Arg1 = CI->getArgOperand(1);
1000 // Convert the type of the pointer to a pointer to the stored type.
1001 Value *BC = Builder.CreateBitCast(Arg0,
1002 PointerType::getUnqual(Arg1->getType()),
1004 StoreInst *SI = Builder.CreateStore(Arg1, BC);
1005 SI->setMetadata(M->getMDKindID("nontemporal"), Node);
1006 SI->setAlignment(16);
1008 // Remove intrinsic.
1009 CI->eraseFromParent();
1011 llvm_unreachable("Unknown function for CallInst upgrade.");
1016 switch (NewFn->getIntrinsicID()) {
1017 default: llvm_unreachable("Unknown function for CallInst upgrade.");
1018 case Intrinsic::arm_neon_vld1:
1019 case Intrinsic::arm_neon_vld2:
1020 case Intrinsic::arm_neon_vld3:
1021 case Intrinsic::arm_neon_vld4:
1022 case Intrinsic::arm_neon_vst1:
1023 case Intrinsic::arm_neon_vst2:
1024 case Intrinsic::arm_neon_vst3:
1025 case Intrinsic::arm_neon_vst4:
1026 case Intrinsic::arm_neon_vld2lane:
1027 case Intrinsic::arm_neon_vld3lane:
1028 case Intrinsic::arm_neon_vld4lane:
1029 case Intrinsic::arm_neon_vst2lane:
1030 case Intrinsic::arm_neon_vst3lane:
1031 case Intrinsic::arm_neon_vst4lane: {
1032 // Add a default alignment argument of 1.
1033 SmallVector<Value*, 8> Operands(CS.arg_begin(), CS.arg_end());
1034 Operands.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
1035 CallInst *NewCI = CallInst::Create(NewFn, Operands.begin(), Operands.end(),
1037 NewCI->setTailCall(CI->isTailCall());
1038 NewCI->setCallingConv(CI->getCallingConv());
1040 // Handle any uses of the old CallInst.
1041 if (!CI->use_empty())
1042 // Replace all uses of the old call with the new cast which has the
1044 CI->replaceAllUsesWith(NewCI);
1046 // Clean up the old call now that it has been completely upgraded.
1047 CI->eraseFromParent();
1051 case Intrinsic::x86_mmx_padd_b:
1052 case Intrinsic::x86_mmx_padd_w:
1053 case Intrinsic::x86_mmx_padd_d:
1054 case Intrinsic::x86_mmx_padd_q:
1055 case Intrinsic::x86_mmx_padds_b:
1056 case Intrinsic::x86_mmx_padds_w:
1057 case Intrinsic::x86_mmx_paddus_b:
1058 case Intrinsic::x86_mmx_paddus_w:
1059 case Intrinsic::x86_mmx_psub_b:
1060 case Intrinsic::x86_mmx_psub_w:
1061 case Intrinsic::x86_mmx_psub_d:
1062 case Intrinsic::x86_mmx_psub_q:
1063 case Intrinsic::x86_mmx_psubs_b:
1064 case Intrinsic::x86_mmx_psubs_w:
1065 case Intrinsic::x86_mmx_psubus_b:
1066 case Intrinsic::x86_mmx_psubus_w:
1067 case Intrinsic::x86_mmx_pmulh_w:
1068 case Intrinsic::x86_mmx_pmull_w:
1069 case Intrinsic::x86_mmx_pmulhu_w:
1070 case Intrinsic::x86_mmx_pmulu_dq:
1071 case Intrinsic::x86_mmx_pmadd_wd:
1072 case Intrinsic::x86_mmx_pand:
1073 case Intrinsic::x86_mmx_pandn:
1074 case Intrinsic::x86_mmx_por:
1075 case Intrinsic::x86_mmx_pxor:
1076 case Intrinsic::x86_mmx_pavg_b:
1077 case Intrinsic::x86_mmx_pavg_w:
1078 case Intrinsic::x86_mmx_pmaxu_b:
1079 case Intrinsic::x86_mmx_pmaxs_w:
1080 case Intrinsic::x86_mmx_pminu_b:
1081 case Intrinsic::x86_mmx_pmins_w:
1082 case Intrinsic::x86_mmx_psad_bw:
1083 case Intrinsic::x86_mmx_psll_w:
1084 case Intrinsic::x86_mmx_psll_d:
1085 case Intrinsic::x86_mmx_psll_q:
1086 case Intrinsic::x86_mmx_pslli_w:
1087 case Intrinsic::x86_mmx_pslli_d:
1088 case Intrinsic::x86_mmx_pslli_q:
1089 case Intrinsic::x86_mmx_psrl_w:
1090 case Intrinsic::x86_mmx_psrl_d:
1091 case Intrinsic::x86_mmx_psrl_q:
1092 case Intrinsic::x86_mmx_psrli_w:
1093 case Intrinsic::x86_mmx_psrli_d:
1094 case Intrinsic::x86_mmx_psrli_q:
1095 case Intrinsic::x86_mmx_psra_w:
1096 case Intrinsic::x86_mmx_psra_d:
1097 case Intrinsic::x86_mmx_psrai_w:
1098 case Intrinsic::x86_mmx_psrai_d:
1099 case Intrinsic::x86_mmx_packsswb:
1100 case Intrinsic::x86_mmx_packssdw:
1101 case Intrinsic::x86_mmx_packuswb:
1102 case Intrinsic::x86_mmx_punpckhbw:
1103 case Intrinsic::x86_mmx_punpckhwd:
1104 case Intrinsic::x86_mmx_punpckhdq:
1105 case Intrinsic::x86_mmx_punpcklbw:
1106 case Intrinsic::x86_mmx_punpcklwd:
1107 case Intrinsic::x86_mmx_punpckldq:
1108 case Intrinsic::x86_mmx_pcmpeq_b:
1109 case Intrinsic::x86_mmx_pcmpeq_w:
1110 case Intrinsic::x86_mmx_pcmpeq_d:
1111 case Intrinsic::x86_mmx_pcmpgt_b:
1112 case Intrinsic::x86_mmx_pcmpgt_w:
1113 case Intrinsic::x86_mmx_pcmpgt_d: {
1116 // Cast the operand to the X86 MMX type.
1117 Operands[0] = new BitCastInst(CI->getArgOperand(0),
1118 NewFn->getFunctionType()->getParamType(0),
1121 switch (NewFn->getIntrinsicID()) {
1123 // Cast to the X86 MMX type.
1124 Operands[1] = new BitCastInst(CI->getArgOperand(1),
1125 NewFn->getFunctionType()->getParamType(1),
1128 case Intrinsic::x86_mmx_pslli_w:
1129 case Intrinsic::x86_mmx_pslli_d:
1130 case Intrinsic::x86_mmx_pslli_q:
1131 case Intrinsic::x86_mmx_psrli_w:
1132 case Intrinsic::x86_mmx_psrli_d:
1133 case Intrinsic::x86_mmx_psrli_q:
1134 case Intrinsic::x86_mmx_psrai_w:
1135 case Intrinsic::x86_mmx_psrai_d:
1136 // These take an i32 as their second parameter.
1137 Operands[1] = CI->getArgOperand(1);
1141 ConstructNewCallInst(NewFn, CI, Operands, 2);
1144 case Intrinsic::x86_mmx_maskmovq: {
1147 // Cast the operands to the X86 MMX type.
1148 Operands[0] = new BitCastInst(CI->getArgOperand(0),
1149 NewFn->getFunctionType()->getParamType(0),
1151 Operands[1] = new BitCastInst(CI->getArgOperand(1),
1152 NewFn->getFunctionType()->getParamType(1),
1154 Operands[2] = CI->getArgOperand(2);
1156 ConstructNewCallInst(NewFn, CI, Operands, 3, false);
1159 case Intrinsic::x86_mmx_pmovmskb: {
1162 // Cast the operand to the X86 MMX type.
1163 Operands[0] = new BitCastInst(CI->getArgOperand(0),
1164 NewFn->getFunctionType()->getParamType(0),
1167 ConstructNewCallInst(NewFn, CI, Operands, 1);
1170 case Intrinsic::x86_mmx_movnt_dq: {
1173 Operands[0] = CI->getArgOperand(0);
1175 // Cast the operand to the X86 MMX type.
1176 Operands[1] = new BitCastInst(CI->getArgOperand(1),
1177 NewFn->getFunctionType()->getParamType(1),
1180 ConstructNewCallInst(NewFn, CI, Operands, 2, false);
1183 case Intrinsic::x86_mmx_palignr_b: {
1186 // Cast the operands to the X86 MMX type.
1187 Operands[0] = new BitCastInst(CI->getArgOperand(0),
1188 NewFn->getFunctionType()->getParamType(0),
1190 Operands[1] = new BitCastInst(CI->getArgOperand(1),
1191 NewFn->getFunctionType()->getParamType(1),
1193 Operands[2] = CI->getArgOperand(2);
1195 ConstructNewCallInst(NewFn, CI, Operands, 3);
1198 case Intrinsic::x86_mmx_pextr_w: {
1201 // Cast the operands to the X86 MMX type.
1202 Operands[0] = new BitCastInst(CI->getArgOperand(0),
1203 NewFn->getFunctionType()->getParamType(0),
1205 Operands[1] = CI->getArgOperand(1);
1207 ConstructNewCallInst(NewFn, CI, Operands, 2);
1210 case Intrinsic::x86_mmx_pinsr_w: {
1213 // Cast the operands to the X86 MMX type.
1214 Operands[0] = new BitCastInst(CI->getArgOperand(0),
1215 NewFn->getFunctionType()->getParamType(0),
1217 Operands[1] = CI->getArgOperand(1);
1218 Operands[2] = CI->getArgOperand(2);
1220 ConstructNewCallInst(NewFn, CI, Operands, 3);
1223 case Intrinsic::x86_sse_pshuf_w: {
1224 IRBuilder<> Builder(C);
1225 Builder.SetInsertPoint(CI->getParent(), CI);
1227 // Cast the operand to the X86 MMX type.
1230 Builder.CreateBitCast(CI->getArgOperand(0),
1231 NewFn->getFunctionType()->getParamType(0),
1234 Builder.CreateTrunc(CI->getArgOperand(1),
1238 ConstructNewCallInst(NewFn, CI, Operands, 2);
1242 case Intrinsic::ctlz:
1243 case Intrinsic::ctpop:
1244 case Intrinsic::cttz: {
1245 // Build a small vector of the original arguments.
1246 SmallVector<Value*, 8> Operands(CS.arg_begin(), CS.arg_end());
1248 // Construct a new CallInst
1249 CallInst *NewCI = CallInst::Create(NewFn, Operands.begin(), Operands.end(),
1250 "upgraded."+CI->getName(), CI);
1251 NewCI->setTailCall(CI->isTailCall());
1252 NewCI->setCallingConv(CI->getCallingConv());
1254 // Handle any uses of the old CallInst.
1255 if (!CI->use_empty()) {
1256 // Check for sign extend parameter attributes on the return values.
1257 bool SrcSExt = NewFn->getAttributes().paramHasAttr(0, Attribute::SExt);
1258 bool DestSExt = F->getAttributes().paramHasAttr(0, Attribute::SExt);
1260 // Construct an appropriate cast from the new return type to the old.
1261 CastInst *RetCast = CastInst::Create(
1262 CastInst::getCastOpcode(NewCI, SrcSExt,
1265 NewCI, F->getReturnType(),
1266 NewCI->getName(), CI);
1267 NewCI->moveBefore(RetCast);
1269 // Replace all uses of the old call with the new cast which has the
1271 CI->replaceAllUsesWith(RetCast);
1274 // Clean up the old call now that it has been completely upgraded.
1275 CI->eraseFromParent();
1278 case Intrinsic::eh_selector:
1279 case Intrinsic::eh_typeid_for: {
1280 // Only the return type changed.
1281 SmallVector<Value*, 8> Operands(CS.arg_begin(), CS.arg_end());
1282 CallInst *NewCI = CallInst::Create(NewFn, Operands.begin(), Operands.end(),
1283 "upgraded." + CI->getName(), CI);
1284 NewCI->setTailCall(CI->isTailCall());
1285 NewCI->setCallingConv(CI->getCallingConv());
1287 // Handle any uses of the old CallInst.
1288 if (!CI->use_empty()) {
1289 // Construct an appropriate cast from the new return type to the old.
1291 CastInst::Create(CastInst::getCastOpcode(NewCI, true,
1292 F->getReturnType(), true),
1293 NewCI, F->getReturnType(), NewCI->getName(), CI);
1294 CI->replaceAllUsesWith(RetCast);
1296 CI->eraseFromParent();
1299 case Intrinsic::memcpy:
1300 case Intrinsic::memmove:
1301 case Intrinsic::memset: {
1303 const llvm::Type *I1Ty = llvm::Type::getInt1Ty(CI->getContext());
1304 Value *Operands[5] = { CI->getArgOperand(0), CI->getArgOperand(1),
1305 CI->getArgOperand(2), CI->getArgOperand(3),
1306 llvm::ConstantInt::get(I1Ty, 0) };
1307 CallInst *NewCI = CallInst::Create(NewFn, Operands, Operands+5,
1309 NewCI->setTailCall(CI->isTailCall());
1310 NewCI->setCallingConv(CI->getCallingConv());
1311 // Handle any uses of the old CallInst.
1312 if (!CI->use_empty())
1313 // Replace all uses of the old call with the new cast which has the
1315 CI->replaceAllUsesWith(NewCI);
1317 // Clean up the old call now that it has been completely upgraded.
1318 CI->eraseFromParent();
1324 // This tests each Function to determine if it needs upgrading. When we find
1325 // one we are interested in, we then upgrade all calls to reflect the new
1327 void llvm::UpgradeCallsToIntrinsic(Function* F) {
1328 assert(F && "Illegal attempt to upgrade a non-existent intrinsic.");
1330 // Upgrade the function and check if it is a totaly new function.
1332 if (UpgradeIntrinsicFunction(F, NewFn)) {
1334 // Replace all uses to the old function with the new one if necessary.
1335 for (Value::use_iterator UI = F->use_begin(), UE = F->use_end();
1337 if (CallInst* CI = dyn_cast<CallInst>(*UI++))
1338 UpgradeIntrinsicCall(CI, NewFn);
1340 // Remove old function, no longer used, from the module.
1341 F->eraseFromParent();
1346 /// This function strips all debug info intrinsics, except for llvm.dbg.declare.
1347 /// If an llvm.dbg.declare intrinsic is invalid, then this function simply
1348 /// strips that use.
1349 void llvm::CheckDebugInfoIntrinsics(Module *M) {
1352 if (Function *FuncStart = M->getFunction("llvm.dbg.func.start")) {
1353 while (!FuncStart->use_empty()) {
1354 CallInst *CI = cast<CallInst>(FuncStart->use_back());
1355 CI->eraseFromParent();
1357 FuncStart->eraseFromParent();
1360 if (Function *StopPoint = M->getFunction("llvm.dbg.stoppoint")) {
1361 while (!StopPoint->use_empty()) {
1362 CallInst *CI = cast<CallInst>(StopPoint->use_back());
1363 CI->eraseFromParent();
1365 StopPoint->eraseFromParent();
1368 if (Function *RegionStart = M->getFunction("llvm.dbg.region.start")) {
1369 while (!RegionStart->use_empty()) {
1370 CallInst *CI = cast<CallInst>(RegionStart->use_back());
1371 CI->eraseFromParent();
1373 RegionStart->eraseFromParent();
1376 if (Function *RegionEnd = M->getFunction("llvm.dbg.region.end")) {
1377 while (!RegionEnd->use_empty()) {
1378 CallInst *CI = cast<CallInst>(RegionEnd->use_back());
1379 CI->eraseFromParent();
1381 RegionEnd->eraseFromParent();
1384 if (Function *Declare = M->getFunction("llvm.dbg.declare")) {
1385 if (!Declare->use_empty()) {
1386 DbgDeclareInst *DDI = cast<DbgDeclareInst>(Declare->use_back());
1387 if (!isa<MDNode>(DDI->getArgOperand(0)) ||
1388 !isa<MDNode>(DDI->getArgOperand(1))) {
1389 while (!Declare->use_empty()) {
1390 CallInst *CI = cast<CallInst>(Declare->use_back());
1391 CI->eraseFromParent();
1393 Declare->eraseFromParent();