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 the poorly named crc32 intrinsics
290 if (Name.compare(5, 13, "x86.sse42.crc", 13) == 0) {
291 const char* NewFnName = NULL;
292 if (Name.compare(18, 2, "32", 2) == 0) {
293 if (Name.compare(20, 2, ".8") == 0 && Name.length() == 22) {
294 NewFnName = "llvm.x86.sse42.crc32.32.8";
295 } else if (Name.compare(20, 3, ".16") == 0 && Name.length() == 23) {
296 NewFnName = "llvm.x86.sse42.crc32.32.16";
297 } else if (Name.compare(20, 3, ".32") == 0 && Name.length() == 23) {
298 NewFnName = "llvm.x86.sse42.crc32.32.32";
301 else if (Name.compare(18, 2, "64", 2) == 0) {
302 if (Name.compare(20, 2, ".8") == 0 && Name.length() == 22) {
303 NewFnName = "llvm.x86.sse42.crc32.64.8";
304 } else if (Name.compare(20, 3, ".64") == 0 && Name.length() == 23) {
305 NewFnName = "llvm.x86.sse42.crc32.64.64";
309 F->setName(NewFnName);
315 // This fixes all MMX shift intrinsic instructions to take a
316 // x86_mmx instead of a v1i64, v2i32, v4i16, or v8i8.
317 if (Name.compare(5, 8, "x86.mmx.", 8) == 0) {
318 const Type *X86_MMXTy = VectorType::getX86_MMXTy(FTy->getContext());
320 if (Name.compare(13, 4, "padd", 4) == 0 ||
321 Name.compare(13, 4, "psub", 4) == 0 ||
322 Name.compare(13, 4, "pmul", 4) == 0 ||
323 Name.compare(13, 5, "pmadd", 5) == 0 ||
324 Name.compare(13, 4, "pand", 4) == 0 ||
325 Name.compare(13, 3, "por", 3) == 0 ||
326 Name.compare(13, 4, "pxor", 4) == 0 ||
327 Name.compare(13, 4, "pavg", 4) == 0 ||
328 Name.compare(13, 4, "pmax", 4) == 0 ||
329 Name.compare(13, 4, "pmin", 4) == 0 ||
330 Name.compare(13, 4, "psad", 4) == 0 ||
331 Name.compare(13, 4, "psll", 4) == 0 ||
332 Name.compare(13, 4, "psrl", 4) == 0 ||
333 Name.compare(13, 4, "psra", 4) == 0 ||
334 Name.compare(13, 4, "pack", 4) == 0 ||
335 Name.compare(13, 6, "punpck", 6) == 0 ||
336 Name.compare(13, 4, "pcmp", 4) == 0) {
337 assert(FTy->getNumParams() == 2 && "MMX intrinsic takes 2 args!");
338 const Type *SecondParamTy = X86_MMXTy;
340 if (Name.compare(13, 5, "pslli", 5) == 0 ||
341 Name.compare(13, 5, "psrli", 5) == 0 ||
342 Name.compare(13, 5, "psrai", 5) == 0)
343 SecondParamTy = FTy->getParamType(1);
345 // Don't do anything if it has the correct types.
346 if (FTy->getReturnType() == X86_MMXTy &&
347 FTy->getParamType(0) == X86_MMXTy &&
348 FTy->getParamType(1) == SecondParamTy)
351 // We first need to change the name of the old (bad) intrinsic, because
352 // its type is incorrect, but we cannot overload that name. We
353 // arbitrarily unique it here allowing us to construct a correctly named
354 // and typed function below.
357 // Now construct the new intrinsic with the correct name and type. We
358 // leave the old function around in order to query its type, whatever it
359 // may be, and correctly convert up to the new type.
360 NewFn = cast<Function>(M->getOrInsertFunction(Name,
361 X86_MMXTy, X86_MMXTy,
362 SecondParamTy, (Type*)0));
366 if (Name.compare(13, 8, "maskmovq", 8) == 0) {
367 // Don't do anything if it has the correct types.
368 if (FTy->getParamType(0) == X86_MMXTy &&
369 FTy->getParamType(1) == X86_MMXTy)
373 NewFn = cast<Function>(M->getOrInsertFunction(Name,
374 FTy->getReturnType(),
377 FTy->getParamType(2),
382 if (Name.compare(13, 8, "pmovmskb", 8) == 0) {
383 if (FTy->getParamType(0) == X86_MMXTy)
387 NewFn = cast<Function>(M->getOrInsertFunction(Name,
388 FTy->getReturnType(),
394 if (Name.compare(13, 5, "movnt", 5) == 0) {
395 if (FTy->getParamType(1) == X86_MMXTy)
399 NewFn = cast<Function>(M->getOrInsertFunction(Name,
400 FTy->getReturnType(),
401 FTy->getParamType(0),
407 if (Name.compare(13, 7, "palignr", 7) == 0) {
408 if (FTy->getReturnType() == X86_MMXTy &&
409 FTy->getParamType(0) == X86_MMXTy &&
410 FTy->getParamType(1) == X86_MMXTy)
414 NewFn = cast<Function>(M->getOrInsertFunction(Name,
418 FTy->getParamType(2),
423 if (Name.compare(13, 5, "pextr", 5) == 0) {
424 if (FTy->getParamType(0) == X86_MMXTy)
428 NewFn = cast<Function>(M->getOrInsertFunction(Name,
429 FTy->getReturnType(),
431 FTy->getParamType(1),
436 if (Name.compare(13, 5, "pinsr", 5) == 0) {
437 if (FTy->getReturnType() == X86_MMXTy &&
438 FTy->getParamType(0) == X86_MMXTy)
442 NewFn = cast<Function>(M->getOrInsertFunction(Name,
445 FTy->getParamType(1),
446 FTy->getParamType(2),
451 if (Name.compare(13, 12, "cvtsi32.si64", 12) == 0) {
452 if (FTy->getReturnType() == X86_MMXTy)
456 NewFn = cast<Function>(M->getOrInsertFunction(Name,
458 FTy->getParamType(0),
463 if (Name.compare(13, 12, "cvtsi64.si32", 12) == 0) {
464 if (FTy->getParamType(0) == X86_MMXTy)
468 NewFn = cast<Function>(M->getOrInsertFunction(Name,
469 FTy->getReturnType(),
475 if (Name.compare(13, 8, "vec.init", 8) == 0) {
476 if (FTy->getReturnType() == X86_MMXTy)
481 if (Name.compare(21, 2, ".b", 2) == 0)
482 NewFn = cast<Function>(M->getOrInsertFunction(Name,
484 FTy->getParamType(0),
485 FTy->getParamType(1),
486 FTy->getParamType(2),
487 FTy->getParamType(3),
488 FTy->getParamType(4),
489 FTy->getParamType(5),
490 FTy->getParamType(6),
491 FTy->getParamType(7),
493 else if (Name.compare(21, 2, ".w", 2) == 0)
494 NewFn = cast<Function>(M->getOrInsertFunction(Name,
496 FTy->getParamType(0),
497 FTy->getParamType(1),
498 FTy->getParamType(2),
499 FTy->getParamType(3),
501 else if (Name.compare(21, 2, ".d", 2) == 0)
502 NewFn = cast<Function>(M->getOrInsertFunction(Name,
504 FTy->getParamType(0),
505 FTy->getParamType(1),
511 if (Name.compare(13, 9, "vec.ext.d", 9) == 0) {
512 if (FTy->getReturnType() == X86_MMXTy &&
513 FTy->getParamType(0) == X86_MMXTy)
517 NewFn = cast<Function>(M->getOrInsertFunction(Name,
520 FTy->getParamType(1),
525 if (Name.compare(13, 9, "emms", 4) == 0 ||
526 Name.compare(13, 9, "femms", 5) == 0) {
531 // We really shouldn't get here ever.
532 assert(0 && "Invalid MMX intrinsic!");
534 } else if (Name.compare(5,17,"x86.sse2.loadh.pd",17) == 0 ||
535 Name.compare(5,17,"x86.sse2.loadl.pd",17) == 0 ||
536 Name.compare(5,16,"x86.sse2.movl.dq",16) == 0 ||
537 Name.compare(5,15,"x86.sse2.movs.d",15) == 0 ||
538 Name.compare(5,16,"x86.sse2.shuf.pd",16) == 0 ||
539 Name.compare(5,18,"x86.sse2.unpckh.pd",18) == 0 ||
540 Name.compare(5,18,"x86.sse2.unpckl.pd",18) == 0 ||
541 Name.compare(5,20,"x86.sse2.punpckh.qdq",20) == 0 ||
542 Name.compare(5,20,"x86.sse2.punpckl.qdq",20) == 0) {
543 // Calls to these intrinsics are transformed into ShuffleVector's.
546 } else if (Name.compare(5, 16, "x86.sse41.pmulld", 16) == 0) {
547 // Calls to these intrinsics are transformed into vector multiplies.
550 } else if (Name.compare(5, 18, "x86.ssse3.palign.r", 18) == 0 ||
551 Name.compare(5, 22, "x86.ssse3.palign.r.128", 22) == 0) {
552 // Calls to these intrinsics are transformed into vector shuffles, shifts,
556 } else if (Name.compare(5, 16, "x86.sse.loadu.ps", 16) == 0 ||
557 Name.compare(5, 17, "x86.sse2.loadu.dq", 17) == 0 ||
558 Name.compare(5, 17, "x86.sse2.loadu.pd", 17) == 0) {
559 // Calls to these instructions are transformed into unaligned loads.
562 } else if (Name.compare(5, 16, "x86.sse.movnt.ps", 16) == 0 ||
563 Name.compare(5, 17, "x86.sse2.movnt.dq", 17) == 0 ||
564 Name.compare(5, 17, "x86.sse2.movnt.pd", 17) == 0 ||
565 Name.compare(5, 17, "x86.sse2.movnt.i", 16) == 0) {
566 // Calls to these instructions are transformed into nontemporal stores.
569 } else if (Name.compare(5, 17, "x86.ssse3.pshuf.w", 17) == 0) {
570 // This is an SSE/MMX instruction.
571 const Type *X86_MMXTy = VectorType::getX86_MMXTy(FTy->getContext());
573 cast<Function>(M->getOrInsertFunction("llvm.x86.sse.pshuf.w",
576 Type::getInt8Ty(F->getContext()),
584 // This may not belong here. This function is effectively being overloaded
585 // to both detect an intrinsic which needs upgrading, and to provide the
586 // upgraded form of the intrinsic. We should perhaps have two separate
587 // functions for this.
591 bool llvm::UpgradeIntrinsicFunction(Function *F, Function *&NewFn) {
593 bool Upgraded = UpgradeIntrinsicFunction1(F, NewFn);
595 // Upgrade intrinsic attributes. This does not change the function.
598 if (unsigned id = F->getIntrinsicID())
599 F->setAttributes(Intrinsic::getAttributes((Intrinsic::ID)id));
603 bool llvm::UpgradeGlobalVariable(GlobalVariable *GV) {
604 StringRef Name(GV->getName());
606 // We are only upgrading one symbol here.
607 if (Name == ".llvm.eh.catch.all.value") {
608 GV->setName("llvm.eh.catch.all.value");
615 /// ExtendNEONArgs - For NEON "long" and "wide" operations, where the results
616 /// have vector elements twice as big as one or both source operands, do the
617 /// sign- or zero-extension that used to be handled by intrinsics. The
618 /// extended values are returned via V0 and V1.
619 static void ExtendNEONArgs(CallInst *CI, Value *Arg0, Value *Arg1,
620 Value *&V0, Value *&V1) {
621 Function *F = CI->getCalledFunction();
622 const std::string& Name = F->getName();
623 bool isLong = (Name.at(18) == 'l');
624 bool isSigned = (Name.at(19) == 's');
628 V0 = new SExtInst(Arg0, CI->getType(), "", CI);
631 V1 = new SExtInst(Arg1, CI->getType(), "", CI);
634 V0 = new ZExtInst(Arg0, CI->getType(), "", CI);
637 V1 = new ZExtInst(Arg1, CI->getType(), "", CI);
641 /// CallVABD - As part of expanding a call to one of the old NEON vabdl, vaba,
642 /// or vabal intrinsics, construct a call to a vabd intrinsic. Examine the
643 /// name of the old intrinsic to determine whether to use a signed or unsigned
644 /// vabd intrinsic. Get the type from the old call instruction, adjusted for
645 /// half-size vector elements if the old intrinsic was vabdl or vabal.
646 static Instruction *CallVABD(CallInst *CI, Value *Arg0, Value *Arg1) {
647 Function *F = CI->getCalledFunction();
648 const std::string& Name = F->getName();
649 bool isLong = (Name.at(18) == 'l');
650 bool isSigned = (Name.at(isLong ? 19 : 18) == 's');
654 intID = Intrinsic::arm_neon_vabds;
656 intID = Intrinsic::arm_neon_vabdu;
658 const Type *Ty = CI->getType();
660 Ty = VectorType::getTruncatedElementVectorType(cast<const VectorType>(Ty));
662 Function *VABD = Intrinsic::getDeclaration(F->getParent(), intID, &Ty, 1);
666 return CallInst::Create(VABD, Operands, Operands+2,
667 "upgraded."+CI->getName(), CI);
670 /// ConstructNewCallInst - Construct a new CallInst with the signature of NewFn.
671 static void ConstructNewCallInst(Function *NewFn, CallInst *OldCI,
672 Value **Operands, unsigned NumOps,
673 bool AssignName = true) {
674 // Construct a new CallInst.
676 CallInst::Create(NewFn, Operands, Operands + NumOps,
677 AssignName ? "upgraded." + OldCI->getName() : "", OldCI);
679 NewCI->setTailCall(OldCI->isTailCall());
680 NewCI->setCallingConv(OldCI->getCallingConv());
682 // Handle any uses of the old CallInst. If the type has changed, add a cast.
683 if (!OldCI->use_empty()) {
684 if (OldCI->getType() != NewCI->getType()) {
685 Function *OldFn = OldCI->getCalledFunction();
687 CastInst::Create(CastInst::getCastOpcode(NewCI, true,
688 OldFn->getReturnType(), true),
689 NewCI, OldFn->getReturnType(), NewCI->getName(),OldCI);
691 // Replace all uses of the old call with the new cast which has the
693 OldCI->replaceAllUsesWith(RetCast);
695 OldCI->replaceAllUsesWith(NewCI);
699 // Clean up the old call now that it has been completely upgraded.
700 OldCI->eraseFromParent();
703 // UpgradeIntrinsicCall - Upgrade a call to an old intrinsic to be a call the
704 // upgraded intrinsic. All argument and return casting must be provided in
705 // order to seamlessly integrate with existing context.
706 void llvm::UpgradeIntrinsicCall(CallInst *CI, Function *NewFn) {
707 Function *F = CI->getCalledFunction();
708 LLVMContext &C = CI->getContext();
709 ImmutableCallSite CS(CI);
711 assert(F && "CallInst has no function associated with it.");
714 // Get the Function's name.
715 const std::string& Name = F->getName();
717 // Upgrade ARM NEON intrinsics.
718 if (Name.compare(5, 9, "arm.neon.", 9) == 0) {
721 if (Name.compare(14, 7, "vmovls.", 7) == 0) {
722 NewI = new SExtInst(CI->getArgOperand(0), CI->getType(),
723 "upgraded." + CI->getName(), CI);
724 } else if (Name.compare(14, 7, "vmovlu.", 7) == 0) {
725 NewI = new ZExtInst(CI->getArgOperand(0), CI->getType(),
726 "upgraded." + CI->getName(), CI);
727 } else if (Name.compare(14, 4, "vadd", 4) == 0) {
728 ExtendNEONArgs(CI, CI->getArgOperand(0), CI->getArgOperand(1), V0, V1);
729 NewI = BinaryOperator::CreateAdd(V0, V1, "upgraded."+CI->getName(), CI);
730 } else if (Name.compare(14, 4, "vsub", 4) == 0) {
731 ExtendNEONArgs(CI, CI->getArgOperand(0), CI->getArgOperand(1), V0, V1);
732 NewI = BinaryOperator::CreateSub(V0, V1,"upgraded."+CI->getName(),CI);
733 } else if (Name.compare(14, 4, "vmul", 4) == 0) {
734 ExtendNEONArgs(CI, CI->getArgOperand(0), CI->getArgOperand(1), V0, V1);
735 NewI = BinaryOperator::CreateMul(V0, V1,"upgraded."+CI->getName(),CI);
736 } else if (Name.compare(14, 4, "vmla", 4) == 0) {
737 ExtendNEONArgs(CI, CI->getArgOperand(1), CI->getArgOperand(2), V0, V1);
738 Instruction *MulI = BinaryOperator::CreateMul(V0, V1, "", CI);
739 NewI = BinaryOperator::CreateAdd(CI->getArgOperand(0), MulI,
740 "upgraded."+CI->getName(), CI);
741 } else if (Name.compare(14, 4, "vmls", 4) == 0) {
742 ExtendNEONArgs(CI, CI->getArgOperand(1), CI->getArgOperand(2), V0, V1);
743 Instruction *MulI = BinaryOperator::CreateMul(V0, V1, "", CI);
744 NewI = BinaryOperator::CreateSub(CI->getArgOperand(0), MulI,
745 "upgraded."+CI->getName(), CI);
746 } else if (Name.compare(14, 4, "vabd", 4) == 0) {
747 NewI = CallVABD(CI, CI->getArgOperand(0), CI->getArgOperand(1));
748 NewI = new ZExtInst(NewI, CI->getType(), "upgraded."+CI->getName(), CI);
749 } else if (Name.compare(14, 4, "vaba", 4) == 0) {
750 NewI = CallVABD(CI, CI->getArgOperand(1), CI->getArgOperand(2));
751 if (Name.at(18) == 'l')
752 NewI = new ZExtInst(NewI, CI->getType(), "", CI);
753 NewI = BinaryOperator::CreateAdd(CI->getArgOperand(0), NewI,
754 "upgraded."+CI->getName(), CI);
755 } else if (Name.compare(14, 6, "vmovn.", 6) == 0) {
756 NewI = new TruncInst(CI->getArgOperand(0), CI->getType(),
757 "upgraded." + CI->getName(), CI);
759 llvm_unreachable("Unknown arm.neon function for CallInst upgrade.");
761 // Replace any uses of the old CallInst.
762 if (!CI->use_empty())
763 CI->replaceAllUsesWith(NewI);
764 CI->eraseFromParent();
768 bool isLoadH = false, isLoadL = false, isMovL = false;
769 bool isMovSD = false, isShufPD = false;
770 bool isUnpckhPD = false, isUnpcklPD = false;
771 bool isPunpckhQPD = false, isPunpcklQPD = false;
772 if (F->getName() == "llvm.x86.sse2.loadh.pd")
774 else if (F->getName() == "llvm.x86.sse2.loadl.pd")
776 else if (F->getName() == "llvm.x86.sse2.movl.dq")
778 else if (F->getName() == "llvm.x86.sse2.movs.d")
780 else if (F->getName() == "llvm.x86.sse2.shuf.pd")
782 else if (F->getName() == "llvm.x86.sse2.unpckh.pd")
784 else if (F->getName() == "llvm.x86.sse2.unpckl.pd")
786 else if (F->getName() == "llvm.x86.sse2.punpckh.qdq")
788 else if (F->getName() == "llvm.x86.sse2.punpckl.qdq")
791 if (isLoadH || isLoadL || isMovL || isMovSD || isShufPD ||
792 isUnpckhPD || isUnpcklPD || isPunpckhQPD || isPunpcklQPD) {
793 std::vector<Constant*> Idxs;
794 Value *Op0 = CI->getArgOperand(0);
795 ShuffleVectorInst *SI = NULL;
796 if (isLoadH || isLoadL) {
797 Value *Op1 = UndefValue::get(Op0->getType());
798 Value *Addr = new BitCastInst(CI->getArgOperand(1),
799 Type::getDoublePtrTy(C),
801 Value *Load = new LoadInst(Addr, "upgraded.", false, 8, CI);
802 Value *Idx = ConstantInt::get(Type::getInt32Ty(C), 0);
803 Op1 = InsertElementInst::Create(Op1, Load, Idx, "upgraded.", CI);
806 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 0));
807 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
809 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
810 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
812 Value *Mask = ConstantVector::get(Idxs);
813 SI = new ShuffleVectorInst(Op0, Op1, Mask, "upgraded.", CI);
815 Constant *Zero = ConstantInt::get(Type::getInt32Ty(C), 0);
816 Idxs.push_back(Zero);
817 Idxs.push_back(Zero);
818 Idxs.push_back(Zero);
819 Idxs.push_back(Zero);
820 Value *ZeroV = ConstantVector::get(Idxs);
823 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 4));
824 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 5));
825 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
826 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 3));
827 Value *Mask = ConstantVector::get(Idxs);
828 SI = new ShuffleVectorInst(ZeroV, Op0, Mask, "upgraded.", CI);
829 } else if (isMovSD ||
830 isUnpckhPD || isUnpcklPD || isPunpckhQPD || isPunpcklQPD) {
831 Value *Op1 = CI->getArgOperand(1);
833 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
834 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
835 } else if (isUnpckhPD || isPunpckhQPD) {
836 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
837 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 3));
839 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 0));
840 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
842 Value *Mask = ConstantVector::get(Idxs);
843 SI = new ShuffleVectorInst(Op0, Op1, Mask, "upgraded.", CI);
844 } else if (isShufPD) {
845 Value *Op1 = CI->getArgOperand(1);
847 cast<ConstantInt>(CI->getArgOperand(2))->getZExtValue();
848 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), MaskVal & 1));
849 Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C),
850 ((MaskVal >> 1) & 1)+2));
851 Value *Mask = ConstantVector::get(Idxs);
852 SI = new ShuffleVectorInst(Op0, Op1, Mask, "upgraded.", CI);
855 assert(SI && "Unexpected!");
857 // Handle any uses of the old CallInst.
858 if (!CI->use_empty())
859 // Replace all uses of the old call with the new cast which has the
861 CI->replaceAllUsesWith(SI);
863 // Clean up the old call now that it has been completely upgraded.
864 CI->eraseFromParent();
865 } else if (F->getName() == "llvm.x86.sse41.pmulld") {
866 // Upgrade this set of intrinsics into vector multiplies.
867 Instruction *Mul = BinaryOperator::CreateMul(CI->getArgOperand(0),
868 CI->getArgOperand(1),
871 // Fix up all the uses with our new multiply.
872 if (!CI->use_empty())
873 CI->replaceAllUsesWith(Mul);
875 // Remove upgraded multiply.
876 CI->eraseFromParent();
877 } else if (F->getName() == "llvm.x86.ssse3.palign.r") {
878 Value *Op1 = CI->getArgOperand(0);
879 Value *Op2 = CI->getArgOperand(1);
880 Value *Op3 = CI->getArgOperand(2);
881 unsigned shiftVal = cast<ConstantInt>(Op3)->getZExtValue();
883 IRBuilder<> Builder(C);
884 Builder.SetInsertPoint(CI->getParent(), CI);
886 // If palignr is shifting the pair of input vectors less than 9 bytes,
887 // emit a shuffle instruction.
889 const Type *IntTy = Type::getInt32Ty(C);
890 const Type *EltTy = Type::getInt8Ty(C);
891 const Type *VecTy = VectorType::get(EltTy, 8);
893 Op2 = Builder.CreateBitCast(Op2, VecTy);
894 Op1 = Builder.CreateBitCast(Op1, VecTy);
896 llvm::SmallVector<llvm::Constant*, 8> Indices;
897 for (unsigned i = 0; i != 8; ++i)
898 Indices.push_back(ConstantInt::get(IntTy, shiftVal + i));
900 Value *SV = ConstantVector::get(Indices);
901 Rep = Builder.CreateShuffleVector(Op2, Op1, SV, "palignr");
902 Rep = Builder.CreateBitCast(Rep, F->getReturnType());
905 // If palignr is shifting the pair of input vectors more than 8 but less
906 // than 16 bytes, emit a logical right shift of the destination.
907 else if (shiftVal < 16) {
908 // MMX has these as 1 x i64 vectors for some odd optimization reasons.
909 const Type *EltTy = Type::getInt64Ty(C);
910 const Type *VecTy = VectorType::get(EltTy, 1);
912 Op1 = Builder.CreateBitCast(Op1, VecTy, "cast");
913 Op2 = ConstantInt::get(VecTy, (shiftVal-8) * 8);
915 // create i32 constant
917 Intrinsic::getDeclaration(F->getParent(), Intrinsic::x86_mmx_psrl_q);
918 Rep = Builder.CreateCall2(I, Op1, Op2, "palignr");
921 // If palignr is shifting the pair of vectors more than 32 bytes, emit zero.
923 Rep = Constant::getNullValue(F->getReturnType());
926 // Replace any uses with our new instruction.
927 if (!CI->use_empty())
928 CI->replaceAllUsesWith(Rep);
930 // Remove upgraded instruction.
931 CI->eraseFromParent();
933 } else if (F->getName() == "llvm.x86.ssse3.palign.r.128") {
934 Value *Op1 = CI->getArgOperand(0);
935 Value *Op2 = CI->getArgOperand(1);
936 Value *Op3 = CI->getArgOperand(2);
937 unsigned shiftVal = cast<ConstantInt>(Op3)->getZExtValue();
939 IRBuilder<> Builder(C);
940 Builder.SetInsertPoint(CI->getParent(), CI);
942 // If palignr is shifting the pair of input vectors less than 17 bytes,
943 // emit a shuffle instruction.
944 if (shiftVal <= 16) {
945 const Type *IntTy = Type::getInt32Ty(C);
946 const Type *EltTy = Type::getInt8Ty(C);
947 const Type *VecTy = VectorType::get(EltTy, 16);
949 Op2 = Builder.CreateBitCast(Op2, VecTy);
950 Op1 = Builder.CreateBitCast(Op1, VecTy);
952 llvm::SmallVector<llvm::Constant*, 16> Indices;
953 for (unsigned i = 0; i != 16; ++i)
954 Indices.push_back(ConstantInt::get(IntTy, shiftVal + i));
956 Value *SV = ConstantVector::get(Indices);
957 Rep = Builder.CreateShuffleVector(Op2, Op1, SV, "palignr");
958 Rep = Builder.CreateBitCast(Rep, F->getReturnType());
961 // If palignr is shifting the pair of input vectors more than 16 but less
962 // than 32 bytes, emit a logical right shift of the destination.
963 else if (shiftVal < 32) {
964 const Type *EltTy = Type::getInt64Ty(C);
965 const Type *VecTy = VectorType::get(EltTy, 2);
966 const Type *IntTy = Type::getInt32Ty(C);
968 Op1 = Builder.CreateBitCast(Op1, VecTy, "cast");
969 Op2 = ConstantInt::get(IntTy, (shiftVal-16) * 8);
971 // create i32 constant
973 Intrinsic::getDeclaration(F->getParent(), Intrinsic::x86_sse2_psrl_dq);
974 Rep = Builder.CreateCall2(I, Op1, Op2, "palignr");
977 // If palignr is shifting the pair of vectors more than 32 bytes, emit zero.
979 Rep = Constant::getNullValue(F->getReturnType());
982 // Replace any uses with our new instruction.
983 if (!CI->use_empty())
984 CI->replaceAllUsesWith(Rep);
986 // Remove upgraded instruction.
987 CI->eraseFromParent();
989 } else if (F->getName() == "llvm.x86.sse.loadu.ps" ||
990 F->getName() == "llvm.x86.sse2.loadu.dq" ||
991 F->getName() == "llvm.x86.sse2.loadu.pd") {
992 // Convert to a native, unaligned load.
993 const Type *VecTy = CI->getType();
994 const Type *IntTy = IntegerType::get(C, 128);
995 IRBuilder<> Builder(C);
996 Builder.SetInsertPoint(CI->getParent(), CI);
998 Value *BC = Builder.CreateBitCast(CI->getArgOperand(0),
999 PointerType::getUnqual(IntTy),
1001 LoadInst *LI = Builder.CreateLoad(BC, CI->getName());
1002 LI->setAlignment(1); // Unaligned load.
1003 BC = Builder.CreateBitCast(LI, VecTy, "new.cast");
1005 // Fix up all the uses with our new load.
1006 if (!CI->use_empty())
1007 CI->replaceAllUsesWith(BC);
1009 // Remove intrinsic.
1010 CI->eraseFromParent();
1011 } else if (F->getName() == "llvm.x86.sse.movnt.ps" ||
1012 F->getName() == "llvm.x86.sse2.movnt.dq" ||
1013 F->getName() == "llvm.x86.sse2.movnt.pd" ||
1014 F->getName() == "llvm.x86.sse2.movnt.i") {
1015 IRBuilder<> Builder(C);
1016 Builder.SetInsertPoint(CI->getParent(), CI);
1018 Module *M = F->getParent();
1019 SmallVector<Value *, 1> Elts;
1020 Elts.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
1021 MDNode *Node = MDNode::get(C, Elts);
1023 Value *Arg0 = CI->getArgOperand(0);
1024 Value *Arg1 = CI->getArgOperand(1);
1026 // Convert the type of the pointer to a pointer to the stored type.
1027 Value *BC = Builder.CreateBitCast(Arg0,
1028 PointerType::getUnqual(Arg1->getType()),
1030 StoreInst *SI = Builder.CreateStore(Arg1, BC);
1031 SI->setMetadata(M->getMDKindID("nontemporal"), Node);
1032 SI->setAlignment(16);
1034 // Remove intrinsic.
1035 CI->eraseFromParent();
1037 llvm_unreachable("Unknown function for CallInst upgrade.");
1042 switch (NewFn->getIntrinsicID()) {
1043 default: llvm_unreachable("Unknown function for CallInst upgrade.");
1044 case Intrinsic::arm_neon_vld1:
1045 case Intrinsic::arm_neon_vld2:
1046 case Intrinsic::arm_neon_vld3:
1047 case Intrinsic::arm_neon_vld4:
1048 case Intrinsic::arm_neon_vst1:
1049 case Intrinsic::arm_neon_vst2:
1050 case Intrinsic::arm_neon_vst3:
1051 case Intrinsic::arm_neon_vst4:
1052 case Intrinsic::arm_neon_vld2lane:
1053 case Intrinsic::arm_neon_vld3lane:
1054 case Intrinsic::arm_neon_vld4lane:
1055 case Intrinsic::arm_neon_vst2lane:
1056 case Intrinsic::arm_neon_vst3lane:
1057 case Intrinsic::arm_neon_vst4lane: {
1058 // Add a default alignment argument of 1.
1059 SmallVector<Value*, 8> Operands(CS.arg_begin(), CS.arg_end());
1060 Operands.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
1061 CallInst *NewCI = CallInst::Create(NewFn, Operands.begin(), Operands.end(),
1063 NewCI->setTailCall(CI->isTailCall());
1064 NewCI->setCallingConv(CI->getCallingConv());
1066 // Handle any uses of the old CallInst.
1067 if (!CI->use_empty())
1068 // Replace all uses of the old call with the new cast which has the
1070 CI->replaceAllUsesWith(NewCI);
1072 // Clean up the old call now that it has been completely upgraded.
1073 CI->eraseFromParent();
1077 case Intrinsic::x86_mmx_padd_b:
1078 case Intrinsic::x86_mmx_padd_w:
1079 case Intrinsic::x86_mmx_padd_d:
1080 case Intrinsic::x86_mmx_padd_q:
1081 case Intrinsic::x86_mmx_padds_b:
1082 case Intrinsic::x86_mmx_padds_w:
1083 case Intrinsic::x86_mmx_paddus_b:
1084 case Intrinsic::x86_mmx_paddus_w:
1085 case Intrinsic::x86_mmx_psub_b:
1086 case Intrinsic::x86_mmx_psub_w:
1087 case Intrinsic::x86_mmx_psub_d:
1088 case Intrinsic::x86_mmx_psub_q:
1089 case Intrinsic::x86_mmx_psubs_b:
1090 case Intrinsic::x86_mmx_psubs_w:
1091 case Intrinsic::x86_mmx_psubus_b:
1092 case Intrinsic::x86_mmx_psubus_w:
1093 case Intrinsic::x86_mmx_pmulh_w:
1094 case Intrinsic::x86_mmx_pmull_w:
1095 case Intrinsic::x86_mmx_pmulhu_w:
1096 case Intrinsic::x86_mmx_pmulu_dq:
1097 case Intrinsic::x86_mmx_pmadd_wd:
1098 case Intrinsic::x86_mmx_pand:
1099 case Intrinsic::x86_mmx_pandn:
1100 case Intrinsic::x86_mmx_por:
1101 case Intrinsic::x86_mmx_pxor:
1102 case Intrinsic::x86_mmx_pavg_b:
1103 case Intrinsic::x86_mmx_pavg_w:
1104 case Intrinsic::x86_mmx_pmaxu_b:
1105 case Intrinsic::x86_mmx_pmaxs_w:
1106 case Intrinsic::x86_mmx_pminu_b:
1107 case Intrinsic::x86_mmx_pmins_w:
1108 case Intrinsic::x86_mmx_psad_bw:
1109 case Intrinsic::x86_mmx_psll_w:
1110 case Intrinsic::x86_mmx_psll_d:
1111 case Intrinsic::x86_mmx_psll_q:
1112 case Intrinsic::x86_mmx_pslli_w:
1113 case Intrinsic::x86_mmx_pslli_d:
1114 case Intrinsic::x86_mmx_pslli_q:
1115 case Intrinsic::x86_mmx_psrl_w:
1116 case Intrinsic::x86_mmx_psrl_d:
1117 case Intrinsic::x86_mmx_psrl_q:
1118 case Intrinsic::x86_mmx_psrli_w:
1119 case Intrinsic::x86_mmx_psrli_d:
1120 case Intrinsic::x86_mmx_psrli_q:
1121 case Intrinsic::x86_mmx_psra_w:
1122 case Intrinsic::x86_mmx_psra_d:
1123 case Intrinsic::x86_mmx_psrai_w:
1124 case Intrinsic::x86_mmx_psrai_d:
1125 case Intrinsic::x86_mmx_packsswb:
1126 case Intrinsic::x86_mmx_packssdw:
1127 case Intrinsic::x86_mmx_packuswb:
1128 case Intrinsic::x86_mmx_punpckhbw:
1129 case Intrinsic::x86_mmx_punpckhwd:
1130 case Intrinsic::x86_mmx_punpckhdq:
1131 case Intrinsic::x86_mmx_punpcklbw:
1132 case Intrinsic::x86_mmx_punpcklwd:
1133 case Intrinsic::x86_mmx_punpckldq:
1134 case Intrinsic::x86_mmx_pcmpeq_b:
1135 case Intrinsic::x86_mmx_pcmpeq_w:
1136 case Intrinsic::x86_mmx_pcmpeq_d:
1137 case Intrinsic::x86_mmx_pcmpgt_b:
1138 case Intrinsic::x86_mmx_pcmpgt_w:
1139 case Intrinsic::x86_mmx_pcmpgt_d: {
1142 // Cast the operand to the X86 MMX type.
1143 Operands[0] = new BitCastInst(CI->getArgOperand(0),
1144 NewFn->getFunctionType()->getParamType(0),
1147 switch (NewFn->getIntrinsicID()) {
1149 // Cast to the X86 MMX type.
1150 Operands[1] = new BitCastInst(CI->getArgOperand(1),
1151 NewFn->getFunctionType()->getParamType(1),
1154 case Intrinsic::x86_mmx_pslli_w:
1155 case Intrinsic::x86_mmx_pslli_d:
1156 case Intrinsic::x86_mmx_pslli_q:
1157 case Intrinsic::x86_mmx_psrli_w:
1158 case Intrinsic::x86_mmx_psrli_d:
1159 case Intrinsic::x86_mmx_psrli_q:
1160 case Intrinsic::x86_mmx_psrai_w:
1161 case Intrinsic::x86_mmx_psrai_d:
1162 // These take an i32 as their second parameter.
1163 Operands[1] = CI->getArgOperand(1);
1167 ConstructNewCallInst(NewFn, CI, Operands, 2);
1170 case Intrinsic::x86_mmx_maskmovq: {
1173 // Cast the operands to the X86 MMX type.
1174 Operands[0] = new BitCastInst(CI->getArgOperand(0),
1175 NewFn->getFunctionType()->getParamType(0),
1177 Operands[1] = new BitCastInst(CI->getArgOperand(1),
1178 NewFn->getFunctionType()->getParamType(1),
1180 Operands[2] = CI->getArgOperand(2);
1182 ConstructNewCallInst(NewFn, CI, Operands, 3, false);
1185 case Intrinsic::x86_mmx_pmovmskb: {
1188 // Cast the operand to the X86 MMX type.
1189 Operands[0] = new BitCastInst(CI->getArgOperand(0),
1190 NewFn->getFunctionType()->getParamType(0),
1193 ConstructNewCallInst(NewFn, CI, Operands, 1);
1196 case Intrinsic::x86_mmx_movnt_dq: {
1199 Operands[0] = CI->getArgOperand(0);
1201 // Cast the operand to the X86 MMX type.
1202 Operands[1] = new BitCastInst(CI->getArgOperand(1),
1203 NewFn->getFunctionType()->getParamType(1),
1206 ConstructNewCallInst(NewFn, CI, Operands, 2, false);
1209 case Intrinsic::x86_mmx_palignr_b: {
1212 // Cast the operands to the X86 MMX type.
1213 Operands[0] = new BitCastInst(CI->getArgOperand(0),
1214 NewFn->getFunctionType()->getParamType(0),
1216 Operands[1] = new BitCastInst(CI->getArgOperand(1),
1217 NewFn->getFunctionType()->getParamType(1),
1219 Operands[2] = CI->getArgOperand(2);
1221 ConstructNewCallInst(NewFn, CI, Operands, 3);
1224 case Intrinsic::x86_mmx_pextr_w: {
1227 // Cast the operands to the X86 MMX type.
1228 Operands[0] = new BitCastInst(CI->getArgOperand(0),
1229 NewFn->getFunctionType()->getParamType(0),
1231 Operands[1] = CI->getArgOperand(1);
1233 ConstructNewCallInst(NewFn, CI, Operands, 2);
1236 case Intrinsic::x86_mmx_pinsr_w: {
1239 // Cast the operands to the X86 MMX type.
1240 Operands[0] = new BitCastInst(CI->getArgOperand(0),
1241 NewFn->getFunctionType()->getParamType(0),
1243 Operands[1] = CI->getArgOperand(1);
1244 Operands[2] = CI->getArgOperand(2);
1246 ConstructNewCallInst(NewFn, CI, Operands, 3);
1249 case Intrinsic::x86_sse_pshuf_w: {
1250 IRBuilder<> Builder(C);
1251 Builder.SetInsertPoint(CI->getParent(), CI);
1253 // Cast the operand to the X86 MMX type.
1256 Builder.CreateBitCast(CI->getArgOperand(0),
1257 NewFn->getFunctionType()->getParamType(0),
1260 Builder.CreateTrunc(CI->getArgOperand(1),
1264 ConstructNewCallInst(NewFn, CI, Operands, 2);
1268 case Intrinsic::ctlz:
1269 case Intrinsic::ctpop:
1270 case Intrinsic::cttz: {
1271 // Build a small vector of the original arguments.
1272 SmallVector<Value*, 8> Operands(CS.arg_begin(), CS.arg_end());
1274 // Construct a new CallInst
1275 CallInst *NewCI = CallInst::Create(NewFn, Operands.begin(), Operands.end(),
1276 "upgraded."+CI->getName(), CI);
1277 NewCI->setTailCall(CI->isTailCall());
1278 NewCI->setCallingConv(CI->getCallingConv());
1280 // Handle any uses of the old CallInst.
1281 if (!CI->use_empty()) {
1282 // Check for sign extend parameter attributes on the return values.
1283 bool SrcSExt = NewFn->getAttributes().paramHasAttr(0, Attribute::SExt);
1284 bool DestSExt = F->getAttributes().paramHasAttr(0, Attribute::SExt);
1286 // Construct an appropriate cast from the new return type to the old.
1287 CastInst *RetCast = CastInst::Create(
1288 CastInst::getCastOpcode(NewCI, SrcSExt,
1291 NewCI, F->getReturnType(),
1292 NewCI->getName(), CI);
1293 NewCI->moveBefore(RetCast);
1295 // Replace all uses of the old call with the new cast which has the
1297 CI->replaceAllUsesWith(RetCast);
1300 // Clean up the old call now that it has been completely upgraded.
1301 CI->eraseFromParent();
1304 case Intrinsic::eh_selector:
1305 case Intrinsic::eh_typeid_for: {
1306 // Only the return type changed.
1307 SmallVector<Value*, 8> Operands(CS.arg_begin(), CS.arg_end());
1308 CallInst *NewCI = CallInst::Create(NewFn, Operands.begin(), Operands.end(),
1309 "upgraded." + CI->getName(), CI);
1310 NewCI->setTailCall(CI->isTailCall());
1311 NewCI->setCallingConv(CI->getCallingConv());
1313 // Handle any uses of the old CallInst.
1314 if (!CI->use_empty()) {
1315 // Construct an appropriate cast from the new return type to the old.
1317 CastInst::Create(CastInst::getCastOpcode(NewCI, true,
1318 F->getReturnType(), true),
1319 NewCI, F->getReturnType(), NewCI->getName(), CI);
1320 CI->replaceAllUsesWith(RetCast);
1322 CI->eraseFromParent();
1325 case Intrinsic::memcpy:
1326 case Intrinsic::memmove:
1327 case Intrinsic::memset: {
1329 const llvm::Type *I1Ty = llvm::Type::getInt1Ty(CI->getContext());
1330 Value *Operands[5] = { CI->getArgOperand(0), CI->getArgOperand(1),
1331 CI->getArgOperand(2), CI->getArgOperand(3),
1332 llvm::ConstantInt::get(I1Ty, 0) };
1333 CallInst *NewCI = CallInst::Create(NewFn, Operands, Operands+5,
1335 NewCI->setTailCall(CI->isTailCall());
1336 NewCI->setCallingConv(CI->getCallingConv());
1337 // Handle any uses of the old CallInst.
1338 if (!CI->use_empty())
1339 // Replace all uses of the old call with the new cast which has the
1341 CI->replaceAllUsesWith(NewCI);
1343 // Clean up the old call now that it has been completely upgraded.
1344 CI->eraseFromParent();
1350 // This tests each Function to determine if it needs upgrading. When we find
1351 // one we are interested in, we then upgrade all calls to reflect the new
1353 void llvm::UpgradeCallsToIntrinsic(Function* F) {
1354 assert(F && "Illegal attempt to upgrade a non-existent intrinsic.");
1356 // Upgrade the function and check if it is a totaly new function.
1358 if (UpgradeIntrinsicFunction(F, NewFn)) {
1360 // Replace all uses to the old function with the new one if necessary.
1361 for (Value::use_iterator UI = F->use_begin(), UE = F->use_end();
1363 if (CallInst* CI = dyn_cast<CallInst>(*UI++))
1364 UpgradeIntrinsicCall(CI, NewFn);
1366 // Remove old function, no longer used, from the module.
1367 F->eraseFromParent();
1372 /// This function strips all debug info intrinsics, except for llvm.dbg.declare.
1373 /// If an llvm.dbg.declare intrinsic is invalid, then this function simply
1374 /// strips that use.
1375 void llvm::CheckDebugInfoIntrinsics(Module *M) {
1378 if (Function *FuncStart = M->getFunction("llvm.dbg.func.start")) {
1379 while (!FuncStart->use_empty()) {
1380 CallInst *CI = cast<CallInst>(FuncStart->use_back());
1381 CI->eraseFromParent();
1383 FuncStart->eraseFromParent();
1386 if (Function *StopPoint = M->getFunction("llvm.dbg.stoppoint")) {
1387 while (!StopPoint->use_empty()) {
1388 CallInst *CI = cast<CallInst>(StopPoint->use_back());
1389 CI->eraseFromParent();
1391 StopPoint->eraseFromParent();
1394 if (Function *RegionStart = M->getFunction("llvm.dbg.region.start")) {
1395 while (!RegionStart->use_empty()) {
1396 CallInst *CI = cast<CallInst>(RegionStart->use_back());
1397 CI->eraseFromParent();
1399 RegionStart->eraseFromParent();
1402 if (Function *RegionEnd = M->getFunction("llvm.dbg.region.end")) {
1403 while (!RegionEnd->use_empty()) {
1404 CallInst *CI = cast<CallInst>(RegionEnd->use_back());
1405 CI->eraseFromParent();
1407 RegionEnd->eraseFromParent();
1410 if (Function *Declare = M->getFunction("llvm.dbg.declare")) {
1411 if (!Declare->use_empty()) {
1412 DbgDeclareInst *DDI = cast<DbgDeclareInst>(Declare->use_back());
1413 if (!isa<MDNode>(DDI->getArgOperand(0)) ||
1414 !isa<MDNode>(DDI->getArgOperand(1))) {
1415 while (!Declare->use_empty()) {
1416 CallInst *CI = cast<CallInst>(Declare->use_back());
1417 CI->eraseFromParent();
1419 Declare->eraseFromParent();