LLVM 19.0.0git
AMDGPUPrintfRuntimeBinding.cpp
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1//=== AMDGPUPrintfRuntimeBinding.cpp - OpenCL printf implementation -------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8// \file
9//
10// The pass bind printfs to a kernel arg pointer that will be bound to a buffer
11// later by the runtime.
12//
13// This pass traverses the functions in the module and converts
14// each call to printf to a sequence of operations that
15// store the following into the printf buffer:
16// - format string (passed as a module's metadata unique ID)
17// - bitwise copies of printf arguments
18// The backend passes will need to store metadata in the kernel
19//===----------------------------------------------------------------------===//
20
21#include "AMDGPU.h"
25#include "llvm/IR/Dominators.h"
26#include "llvm/IR/IRBuilder.h"
32
33using namespace llvm;
34
35#define DEBUG_TYPE "printfToRuntime"
36#define DWORD_ALIGN 4
37
38namespace {
39class AMDGPUPrintfRuntimeBinding final : public ModulePass {
40
41public:
42 static char ID;
43
44 explicit AMDGPUPrintfRuntimeBinding();
45
46private:
47 bool runOnModule(Module &M) override;
48};
49
50class AMDGPUPrintfRuntimeBindingImpl {
51public:
52 AMDGPUPrintfRuntimeBindingImpl() {}
53 bool run(Module &M);
54
55private:
56 void getConversionSpecifiers(SmallVectorImpl<char> &OpConvSpecifiers,
57 StringRef fmt, size_t num_ops) const;
58
59 bool lowerPrintfForGpu(Module &M);
60
61 const DataLayout *TD;
63};
64} // namespace
65
66char AMDGPUPrintfRuntimeBinding::ID = 0;
67
68INITIALIZE_PASS_BEGIN(AMDGPUPrintfRuntimeBinding,
69 "amdgpu-printf-runtime-binding", "AMDGPU Printf lowering",
70 false, false)
73INITIALIZE_PASS_END(AMDGPUPrintfRuntimeBinding, "amdgpu-printf-runtime-binding",
74 "AMDGPU Printf lowering", false, false)
75
76char &llvm::AMDGPUPrintfRuntimeBindingID = AMDGPUPrintfRuntimeBinding::ID;
77
78namespace llvm {
80 return new AMDGPUPrintfRuntimeBinding();
81}
82} // namespace llvm
83
84AMDGPUPrintfRuntimeBinding::AMDGPUPrintfRuntimeBinding() : ModulePass(ID) {
86}
87
88void AMDGPUPrintfRuntimeBindingImpl::getConversionSpecifiers(
89 SmallVectorImpl<char> &OpConvSpecifiers, StringRef Fmt,
90 size_t NumOps) const {
91 // not all format characters are collected.
92 // At this time the format characters of interest
93 // are %p and %s, which use to know if we
94 // are either storing a literal string or a
95 // pointer to the printf buffer.
96 static const char ConvSpecifiers[] = "cdieEfgGaosuxXp";
97 size_t CurFmtSpecifierIdx = 0;
98 size_t PrevFmtSpecifierIdx = 0;
99
100 while ((CurFmtSpecifierIdx = Fmt.find_first_of(
101 ConvSpecifiers, CurFmtSpecifierIdx)) != StringRef::npos) {
102 bool ArgDump = false;
103 StringRef CurFmt = Fmt.substr(PrevFmtSpecifierIdx,
104 CurFmtSpecifierIdx - PrevFmtSpecifierIdx);
105 size_t pTag = CurFmt.find_last_of('%');
106 if (pTag != StringRef::npos) {
107 ArgDump = true;
108 while (pTag && CurFmt[--pTag] == '%') {
109 ArgDump = !ArgDump;
110 }
111 }
112
113 if (ArgDump)
114 OpConvSpecifiers.push_back(Fmt[CurFmtSpecifierIdx]);
115
116 PrevFmtSpecifierIdx = ++CurFmtSpecifierIdx;
117 }
118}
119
120static bool shouldPrintAsStr(char Specifier, Type *OpType) {
121 return Specifier == 's' && isa<PointerType>(OpType);
122}
123
125static_assert(NonLiteralStr.size() == 3);
126
128 StringRef S;
129 if (!getConstantStringInfo(V, S))
130 S = NonLiteralStr;
131
132 return S;
133}
134
135static void diagnoseInvalidFormatString(const CallBase *CI) {
136 DiagnosticInfoUnsupported UnsupportedFormatStr(
137 *CI->getParent()->getParent(),
138 "printf format string must be a trivially resolved constant string "
139 "global variable",
140 CI->getDebugLoc());
141 CI->getContext().diagnose(UnsupportedFormatStr);
142}
143
144bool AMDGPUPrintfRuntimeBindingImpl::lowerPrintfForGpu(Module &M) {
145 LLVMContext &Ctx = M.getContext();
146 IRBuilder<> Builder(Ctx);
147 Type *I32Ty = Type::getInt32Ty(Ctx);
148
149 // Instead of creating global variables, the printf format strings are
150 // extracted and passed as metadata. This avoids polluting llvm's symbol
151 // tables in this module. Metadata is going to be extracted by the backend
152 // passes and inserted into the OpenCL binary as appropriate.
153 NamedMDNode *metaD = M.getOrInsertNamedMetadata("llvm.printf.fmts");
154 unsigned UniqID = metaD->getNumOperands();
155
156 for (auto *CI : Printfs) {
157 unsigned NumOps = CI->arg_size();
158
159 SmallString<16> OpConvSpecifiers;
160 Value *Op = CI->getArgOperand(0);
161
162 StringRef FormatStr;
163 if (!getConstantStringInfo(Op, FormatStr)) {
164 Value *Stripped = Op->stripPointerCasts();
165 if (!isa<UndefValue>(Stripped) && !isa<ConstantPointerNull>(Stripped))
167 continue;
168 }
169
170 // We need this call to ascertain that we are printing a string or a
171 // pointer. It takes out the specifiers and fills up the first arg.
172 getConversionSpecifiers(OpConvSpecifiers, FormatStr, NumOps - 1);
173
174 // Add metadata for the string
175 std::string AStreamHolder;
176 raw_string_ostream Sizes(AStreamHolder);
177 int Sum = DWORD_ALIGN;
178 Sizes << CI->arg_size() - 1;
179 Sizes << ':';
180 for (unsigned ArgCount = 1;
181 ArgCount < CI->arg_size() && ArgCount <= OpConvSpecifiers.size();
182 ArgCount++) {
183 Value *Arg = CI->getArgOperand(ArgCount);
184 Type *ArgType = Arg->getType();
185 unsigned ArgSize = TD->getTypeAllocSize(ArgType);
186 //
187 // ArgSize by design should be a multiple of DWORD_ALIGN,
188 // expand the arguments that do not follow this rule.
189 //
190 if (ArgSize % DWORD_ALIGN != 0) {
191 Type *ResType = Type::getInt32Ty(Ctx);
192 if (auto *VecType = dyn_cast<VectorType>(ArgType))
193 ResType = VectorType::get(ResType, VecType->getElementCount());
194 Builder.SetInsertPoint(CI);
195 Builder.SetCurrentDebugLocation(CI->getDebugLoc());
196
197 if (ArgType->isFloatingPointTy()) {
198 Arg = Builder.CreateBitCast(
199 Arg,
200 IntegerType::getIntNTy(Ctx, ArgType->getPrimitiveSizeInBits()));
201 }
202
203 if (OpConvSpecifiers[ArgCount - 1] == 'x' ||
204 OpConvSpecifiers[ArgCount - 1] == 'X' ||
205 OpConvSpecifiers[ArgCount - 1] == 'u' ||
206 OpConvSpecifiers[ArgCount - 1] == 'o')
207 Arg = Builder.CreateZExt(Arg, ResType);
208 else
209 Arg = Builder.CreateSExt(Arg, ResType);
210 ArgType = Arg->getType();
211 ArgSize = TD->getTypeAllocSize(ArgType);
212 CI->setOperand(ArgCount, Arg);
213 }
214 if (OpConvSpecifiers[ArgCount - 1] == 'f') {
215 ConstantFP *FpCons = dyn_cast<ConstantFP>(Arg);
216 if (FpCons)
217 ArgSize = 4;
218 else {
219 FPExtInst *FpExt = dyn_cast<FPExtInst>(Arg);
220 if (FpExt && FpExt->getType()->isDoubleTy() &&
221 FpExt->getOperand(0)->getType()->isFloatTy())
222 ArgSize = 4;
223 }
224 }
225 if (shouldPrintAsStr(OpConvSpecifiers[ArgCount - 1], ArgType))
226 ArgSize = alignTo(getAsConstantStr(Arg).size() + 1, 4);
227
228 LLVM_DEBUG(dbgs() << "Printf ArgSize (in buffer) = " << ArgSize
229 << " for type: " << *ArgType << '\n');
230 Sizes << ArgSize << ':';
231 Sum += ArgSize;
232 }
233 LLVM_DEBUG(dbgs() << "Printf format string in source = " << FormatStr
234 << '\n');
235 for (char C : FormatStr) {
236 // Rest of the C escape sequences (e.g. \') are handled correctly
237 // by the MDParser
238 switch (C) {
239 case '\a':
240 Sizes << "\\a";
241 break;
242 case '\b':
243 Sizes << "\\b";
244 break;
245 case '\f':
246 Sizes << "\\f";
247 break;
248 case '\n':
249 Sizes << "\\n";
250 break;
251 case '\r':
252 Sizes << "\\r";
253 break;
254 case '\v':
255 Sizes << "\\v";
256 break;
257 case ':':
258 // ':' cannot be scanned by Flex, as it is defined as a delimiter
259 // Replace it with it's octal representation \72
260 Sizes << "\\72";
261 break;
262 default:
263 Sizes << C;
264 break;
265 }
266 }
267
268 // Insert the printf_alloc call
269 Builder.SetInsertPoint(CI);
270 Builder.SetCurrentDebugLocation(CI->getDebugLoc());
271
273 Attribute::NoUnwind);
274
275 Type *SizetTy = Type::getInt32Ty(Ctx);
276
277 Type *Tys_alloc[1] = {SizetTy};
278 Type *I8Ty = Type::getInt8Ty(Ctx);
279 Type *I8Ptr = PointerType::get(I8Ty, 1);
280 FunctionType *FTy_alloc = FunctionType::get(I8Ptr, Tys_alloc, false);
281 FunctionCallee PrintfAllocFn =
282 M.getOrInsertFunction(StringRef("__printf_alloc"), FTy_alloc, Attr);
283
284 LLVM_DEBUG(dbgs() << "Printf metadata = " << Sizes.str() << '\n');
285 std::string fmtstr = itostr(++UniqID) + ":" + Sizes.str();
286 MDString *fmtStrArray = MDString::get(Ctx, fmtstr);
287
288 MDNode *myMD = MDNode::get(Ctx, fmtStrArray);
289 metaD->addOperand(myMD);
290 Value *sumC = ConstantInt::get(SizetTy, Sum, false);
291 SmallVector<Value *, 1> alloc_args;
292 alloc_args.push_back(sumC);
293 CallInst *pcall = CallInst::Create(PrintfAllocFn, alloc_args,
294 "printf_alloc_fn", CI->getIterator());
295
296 //
297 // Insert code to split basicblock with a
298 // piece of hammock code.
299 // basicblock splits after buffer overflow check
300 //
301 ConstantPointerNull *zeroIntPtr =
302 ConstantPointerNull::get(PointerType::get(I8Ty, 1));
303 auto *cmp = cast<ICmpInst>(Builder.CreateICmpNE(pcall, zeroIntPtr, ""));
304 if (!CI->use_empty()) {
305 Value *result =
306 Builder.CreateSExt(Builder.CreateNot(cmp), I32Ty, "printf_res");
307 CI->replaceAllUsesWith(result);
308 }
309 SplitBlock(CI->getParent(), cmp);
310 Instruction *Brnch =
311 SplitBlockAndInsertIfThen(cmp, cmp->getNextNode(), false);
312 BasicBlock::iterator BrnchPoint = Brnch->getIterator();
313
314 Builder.SetInsertPoint(Brnch);
315
316 // store unique printf id in the buffer
317 //
319 I8Ty, pcall, ConstantInt::get(Ctx, APInt(32, 0)), "PrintBuffID",
320 BrnchPoint);
321
322 Type *idPointer = PointerType::get(I32Ty, AMDGPUAS::GLOBAL_ADDRESS);
323 Value *id_gep_cast =
324 new BitCastInst(BufferIdx, idPointer, "PrintBuffIdCast", BrnchPoint);
325
326 new StoreInst(ConstantInt::get(I32Ty, UniqID), id_gep_cast, BrnchPoint);
327
328 // 1st 4 bytes hold the printf_id
329 // the following GEP is the buffer pointer
330 BufferIdx = GetElementPtrInst::Create(I8Ty, pcall,
331 ConstantInt::get(Ctx, APInt(32, 4)),
332 "PrintBuffGep", BrnchPoint);
333
335 for (unsigned ArgCount = 1;
336 ArgCount < CI->arg_size() && ArgCount <= OpConvSpecifiers.size();
337 ArgCount++) {
338 Value *Arg = CI->getArgOperand(ArgCount);
339 Type *ArgType = Arg->getType();
340 SmallVector<Value *, 32> WhatToStore;
341 if (ArgType->isFPOrFPVectorTy() && !isa<VectorType>(ArgType)) {
342 if (OpConvSpecifiers[ArgCount - 1] == 'f') {
343 if (auto *FpCons = dyn_cast<ConstantFP>(Arg)) {
344 APFloat Val(FpCons->getValueAPF());
345 bool Lost = false;
346 Val.convert(APFloat::IEEEsingle(), APFloat::rmNearestTiesToEven,
347 &Lost);
348 Arg = ConstantFP::get(Ctx, Val);
349 } else if (auto *FpExt = dyn_cast<FPExtInst>(Arg)) {
350 if (FpExt->getType()->isDoubleTy() &&
351 FpExt->getOperand(0)->getType()->isFloatTy()) {
352 Arg = FpExt->getOperand(0);
353 }
354 }
355 }
356 WhatToStore.push_back(Arg);
357 } else if (isa<PointerType>(ArgType)) {
358 if (shouldPrintAsStr(OpConvSpecifiers[ArgCount - 1], ArgType)) {
360 if (!S.empty()) {
361 const uint64_t ReadSize = 4;
362
363 DataExtractor Extractor(S, /*IsLittleEndian=*/true, 8);
365 while (Offset && Offset.tell() < S.size()) {
366 uint64_t ReadNow = std::min(ReadSize, S.size() - Offset.tell());
367 uint64_t ReadBytes = 0;
368 switch (ReadNow) {
369 default: llvm_unreachable("min(4, X) > 4?");
370 case 1:
371 ReadBytes = Extractor.getU8(Offset);
372 break;
373 case 2:
374 ReadBytes = Extractor.getU16(Offset);
375 break;
376 case 3:
377 ReadBytes = Extractor.getU24(Offset);
378 break;
379 case 4:
380 ReadBytes = Extractor.getU32(Offset);
381 break;
382 }
383
384 cantFail(Offset.takeError(),
385 "failed to read bytes from constant array");
386
387 APInt IntVal(8 * ReadSize, ReadBytes);
388
389 // TODO: Should not bothering aligning up.
390 if (ReadNow < ReadSize)
391 IntVal = IntVal.zext(8 * ReadSize);
392
393 Type *IntTy = Type::getIntNTy(Ctx, IntVal.getBitWidth());
394 WhatToStore.push_back(ConstantInt::get(IntTy, IntVal));
395 }
396 } else {
397 // Empty string, give a hint to RT it is no NULL
398 Value *ANumV = ConstantInt::get(Int32Ty, 0xFFFFFF00, false);
399 WhatToStore.push_back(ANumV);
400 }
401 } else {
402 WhatToStore.push_back(Arg);
403 }
404 } else {
405 WhatToStore.push_back(Arg);
406 }
407 for (unsigned I = 0, E = WhatToStore.size(); I != E; ++I) {
408 Value *TheBtCast = WhatToStore[I];
409 unsigned ArgSize = TD->getTypeAllocSize(TheBtCast->getType());
410 StoreInst *StBuff = new StoreInst(TheBtCast, BufferIdx, BrnchPoint);
411 LLVM_DEBUG(dbgs() << "inserting store to printf buffer:\n"
412 << *StBuff << '\n');
413 (void)StBuff;
414 if (I + 1 == E && ArgCount + 1 == CI->arg_size())
415 break;
416 BufferIdx = GetElementPtrInst::Create(
417 I8Ty, BufferIdx, {ConstantInt::get(I32Ty, ArgSize)},
418 "PrintBuffNextPtr", BrnchPoint);
419 LLVM_DEBUG(dbgs() << "inserting gep to the printf buffer:\n"
420 << *BufferIdx << '\n');
421 }
422 }
423 }
424
425 // erase the printf calls
426 for (auto *CI : Printfs)
427 CI->eraseFromParent();
428
429 Printfs.clear();
430 return true;
431}
432
433bool AMDGPUPrintfRuntimeBindingImpl::run(Module &M) {
434 Triple TT(M.getTargetTriple());
435 if (TT.getArch() == Triple::r600)
436 return false;
437
438 auto PrintfFunction = M.getFunction("printf");
439 if (!PrintfFunction || !PrintfFunction->isDeclaration())
440 return false;
441
442 for (auto &U : PrintfFunction->uses()) {
443 if (auto *CI = dyn_cast<CallInst>(U.getUser())) {
444 if (CI->isCallee(&U) && !CI->isNoBuiltin())
445 Printfs.push_back(CI);
446 }
447 }
448
449 if (Printfs.empty())
450 return false;
451
452 TD = &M.getDataLayout();
453
454 return lowerPrintfForGpu(M);
455}
456
457bool AMDGPUPrintfRuntimeBinding::runOnModule(Module &M) {
458 return AMDGPUPrintfRuntimeBindingImpl().run(M);
459}
460
463 bool Changed = AMDGPUPrintfRuntimeBindingImpl().run(M);
464 return Changed ? PreservedAnalyses::none() : PreservedAnalyses::all();
465}
static void diagnoseInvalidFormatString(const CallBase *CI)
#define DWORD_ALIGN
amdgpu printf runtime AMDGPU Printf lowering
constexpr StringLiteral NonLiteralStr("???")
static StringRef getAsConstantStr(Value *V)
amdgpu printf runtime binding
static bool shouldPrintAsStr(char Specifier, Type *OpType)
#define LLVM_DEBUG(X)
Definition: Debug.h:101
#define I(x, y, z)
Definition: MD5.cpp:58
IntegerType * Int32Ty
#define INITIALIZE_PASS_DEPENDENCY(depName)
Definition: PassSupport.h:55
#define INITIALIZE_PASS_END(passName, arg, name, cfg, analysis)
Definition: PassSupport.h:59
#define INITIALIZE_PASS_BEGIN(passName, arg, name, cfg, analysis)
Definition: PassSupport.h:52
This file contains some functions that are useful when dealing with strings.
Class for arbitrary precision integers.
Definition: APInt.h:76
A container for analyses that lazily runs them and caches their results.
Definition: PassManager.h:321
static AttributeList get(LLVMContext &C, ArrayRef< std::pair< unsigned, Attribute > > Attrs)
Create an AttributeList with the specified parameters in it.
const Function * getParent() const
Return the enclosing method, or null if none.
Definition: BasicBlock.h:206
InstListType::iterator iterator
Instruction iterators...
Definition: BasicBlock.h:165
This class represents a no-op cast from one type to another.
Base class for all callable instructions (InvokeInst and CallInst) Holds everything related to callin...
Definition: InstrTypes.h:1467
This class represents a function call, abstracting a target machine's calling convention.
static CallInst * Create(FunctionType *Ty, Value *F, const Twine &NameStr, BasicBlock::iterator InsertBefore)
ConstantFP - Floating Point Values [float, double].
Definition: Constants.h:268
const APFloat & getValueAPF() const
Definition: Constants.h:311
A constant pointer value that points to null.
Definition: Constants.h:548
static ConstantPointerNull * get(PointerType *T)
Static factory methods - Return objects of the specified value.
Definition: Constants.cpp:1775
This class represents an Operation in the Expression.
A class representing a position in a DataExtractor, as well as any error encountered during extractio...
Definition: DataExtractor.h:54
A parsed version of the target data layout string in and methods for querying it.
Definition: DataLayout.h:110
Diagnostic information for unsupported feature in backend.
Legacy analysis pass which computes a DominatorTree.
Definition: Dominators.h:317
This class represents an extension of floating point types.
A handy container for a FunctionType+Callee-pointer pair, which can be passed around as a single enti...
Definition: DerivedTypes.h:168
an instruction for type-safe pointer arithmetic to access elements of arrays and structs
Definition: Instructions.h:973
static GetElementPtrInst * Create(Type *PointeeType, Value *Ptr, ArrayRef< Value * > IdxList, const Twine &NameStr, BasicBlock::iterator InsertBefore)
This provides a uniform API for creating instructions and inserting them into a basic block: either a...
Definition: IRBuilder.h:2656
const DebugLoc & getDebugLoc() const
Return the debug location for this node as a DebugLoc.
Definition: Instruction.h:454
const BasicBlock * getParent() const
Definition: Instruction.h:152
This is an important class for using LLVM in a threaded context.
Definition: LLVMContext.h:67
void diagnose(const DiagnosticInfo &DI)
Report a message to the currently installed diagnostic handler.
Metadata node.
Definition: Metadata.h:1067
static MDTuple * get(LLVMContext &Context, ArrayRef< Metadata * > MDs)
Definition: Metadata.h:1541
A single uniqued string.
Definition: Metadata.h:720
static MDString * get(LLVMContext &Context, StringRef Str)
Definition: Metadata.cpp:600
ModulePass class - This class is used to implement unstructured interprocedural optimizations and ana...
Definition: Pass.h:251
virtual bool runOnModule(Module &M)=0
runOnModule - Virtual method overriden by subclasses to process the module being operated on.
A Module instance is used to store all the information related to an LLVM module.
Definition: Module.h:65
A tuple of MDNodes.
Definition: Metadata.h:1729
unsigned getNumOperands() const
Definition: Metadata.cpp:1378
void addOperand(MDNode *M)
Definition: Metadata.cpp:1388
static PassRegistry * getPassRegistry()
getPassRegistry - Access the global registry object, which is automatically initialized at applicatio...
A set of analyses that are preserved following a run of a transformation pass.
Definition: Analysis.h:109
static PreservedAnalyses none()
Convenience factory function for the empty preserved set.
Definition: Analysis.h:112
static PreservedAnalyses all()
Construct a special preserved set that preserves all passes.
Definition: Analysis.h:115
SmallString - A SmallString is just a SmallVector with methods and accessors that make it work better...
Definition: SmallString.h:26
size_t size() const
Definition: SmallVector.h:91
This class consists of common code factored out of the SmallVector class to reduce code duplication b...
Definition: SmallVector.h:586
void push_back(const T &Elt)
Definition: SmallVector.h:426
This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small.
Definition: SmallVector.h:1209
An instruction for storing to memory.
Definition: Instructions.h:317
A wrapper around a string literal that serves as a proxy for constructing global tables of StringRefs...
Definition: StringRef.h:849
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
constexpr StringRef substr(size_t Start, size_t N=npos) const
Return a reference to the substring from [Start, Start + N).
Definition: StringRef.h:567
constexpr bool empty() const
empty - Check if the string is empty.
Definition: StringRef.h:134
constexpr size_t size() const
size - Get the string size.
Definition: StringRef.h:137
size_t find_last_of(char C, size_t From=npos) const
Find the last character in the string that is C, or npos if not found.
Definition: StringRef.h:396
size_t find_first_of(char C, size_t From=0) const
Find the first character in the string that is C, or npos if not found.
Definition: StringRef.h:373
static constexpr size_t npos
Definition: StringRef.h:52
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
The instances of the Type class are immutable: once they are created, they are never changed.
Definition: Type.h:45
bool isFloatTy() const
Return true if this is 'float', a 32-bit IEEE fp type.
Definition: Type.h:154
static IntegerType * getIntNTy(LLVMContext &C, unsigned N)
static IntegerType * getInt8Ty(LLVMContext &C)
bool isDoubleTy() const
Return true if this is 'double', a 64-bit IEEE fp type.
Definition: Type.h:157
bool isFloatingPointTy() const
Return true if this is one of the floating-point types.
Definition: Type.h:185
static IntegerType * getInt32Ty(LLVMContext &C)
bool isFPOrFPVectorTy() const
Return true if this is a FP type or a vector of FP.
Definition: Type.h:216
TypeSize getPrimitiveSizeInBits() const LLVM_READONLY
Return the basic size of this type if it is a primitive type.
Value * getOperand(unsigned i) const
Definition: User.h:169
LLVM Value Representation.
Definition: Value.h:74
Type * getType() const
All values are typed, get the type of this value.
Definition: Value.h:255
void replaceAllUsesWith(Value *V)
Change all uses of this to point to a new Value.
Definition: Value.cpp:534
LLVMContext & getContext() const
All values hold a context through their type.
Definition: Value.cpp:1074
self_iterator getIterator()
Definition: ilist_node.h:109
A raw_ostream that writes to an std::string.
Definition: raw_ostream.h:660
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
@ GLOBAL_ADDRESS
Address space for global memory (RAT0, VTX0).
unsigned ID
LLVM IR allows to use arbitrary numbers as calling convention identifiers.
Definition: CallingConv.h:24
@ C
The default llvm calling convention, compatible with C.
Definition: CallingConv.h:34
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
@ Offset
Definition: DWP.cpp:456
auto size(R &&Range, std::enable_if_t< std::is_base_of< std::random_access_iterator_tag, typename std::iterator_traits< decltype(Range.begin())>::iterator_category >::value, void > *=nullptr)
Get the size of a range.
Definition: STLExtras.h:1680
bool getConstantStringInfo(const Value *V, StringRef &Str, bool TrimAtNul=true)
This function computes the length of a null-terminated C string pointed to by V.
char & AMDGPUPrintfRuntimeBindingID
raw_ostream & dbgs()
dbgs() - This returns a reference to a raw_ostream for debugging messages.
Definition: Debug.cpp:163
ModulePass * createAMDGPUPrintfRuntimeBinding()
void cantFail(Error Err, const char *Msg=nullptr)
Report a fatal error if Err is a failure value.
Definition: Error.h:749
uint64_t alignTo(uint64_t Size, Align A)
Returns a multiple of A needed to store Size bytes.
Definition: Alignment.h:155
BasicBlock * SplitBlock(BasicBlock *Old, BasicBlock::iterator SplitPt, DominatorTree *DT, LoopInfo *LI=nullptr, MemorySSAUpdater *MSSAU=nullptr, const Twine &BBName="", bool Before=false)
Split the specified block at the specified instruction.
Instruction * SplitBlockAndInsertIfThen(Value *Cond, BasicBlock::iterator SplitBefore, bool Unreachable, MDNode *BranchWeights=nullptr, DomTreeUpdater *DTU=nullptr, LoopInfo *LI=nullptr, BasicBlock *ThenBlock=nullptr)
Split the containing block at the specified instruction - everything before SplitBefore stays in the ...
void initializeAMDGPUPrintfRuntimeBindingPass(PassRegistry &)
PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM)