//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#include "llvm/Pass.h"
#include "llvm/Module.h"
#include "llvm/ModuleProvider.h"
+#include "llvm/ParameterAttributes.h"
#include "llvm/DerivedTypes.h"
#include "llvm/InlineAsm.h"
-#include "llvm/Instructions.h"
-#include "llvm/Intrinsics.h"
+#include "llvm/IntrinsicInst.h"
#include "llvm/PassManager.h"
-#include "llvm/SymbolTable.h"
#include "llvm/Analysis/Dominators.h"
+#include "llvm/CodeGen/ValueTypes.h"
+#include "llvm/Support/CallSite.h"
#include "llvm/Support/CFG.h"
#include "llvm/Support/InstVisitor.h"
+#include "llvm/Support/Streams.h"
+#include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/Compiler.h"
#include <algorithm>
-#include <iostream>
#include <sstream>
#include <cstdarg>
using namespace llvm;
namespace { // Anonymous namespace for class
+ struct VISIBILITY_HIDDEN PreVerifier : public FunctionPass {
+ static char ID; // Pass ID, replacement for typeid
+
+ PreVerifier() : FunctionPass((intptr_t)&ID) { }
+
+ // Check that the prerequisites for successful DominatorTree construction
+ // are satisfied.
+ bool runOnFunction(Function &F) {
+ bool Broken = false;
+
+ for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I) {
+ if (I->empty() || !I->back().isTerminator()) {
+ cerr << "Basic Block does not have terminator!\n";
+ WriteAsOperand(*cerr, I, true);
+ cerr << "\n";
+ Broken = true;
+ }
+ }
+
+ if (Broken)
+ abort();
+
+ return false;
+ }
+ };
+
+ char PreVerifier::ID = 0;
+ RegisterPass<PreVerifier> PreVer("preverify", "Preliminary module verification");
+ const PassInfo *PreVerifyID = PreVer.getPassInfo();
struct VISIBILITY_HIDDEN
Verifier : public FunctionPass, InstVisitor<Verifier> {
+ static char ID; // Pass ID, replacement for typeid
bool Broken; // Is this module found to be broken?
bool RealPass; // Are we not being run by a PassManager?
VerifierFailureAction action;
// What to do if verification fails.
Module *Mod; // Module we are verifying right now
- ETForest *EF; // ET-Forest, caution can be null!
+ DominatorTree *DT; // Dominator Tree, caution can be null!
std::stringstream msgs; // A stringstream to collect messages
/// InstInThisBlock - when verifying a basic block, keep track of all of the
/// instructions we have seen so far. This allows us to do efficient
/// dominance checks for the case when an instruction has an operand that is
/// an instruction in the same block.
- std::set<Instruction*> InstsInThisBlock;
+ SmallPtrSet<Instruction*, 16> InstsInThisBlock;
Verifier()
- : Broken(false), RealPass(true), action(AbortProcessAction),
- EF(0), msgs( std::ios::app | std::ios::out ) {}
+ : FunctionPass((intptr_t)&ID),
+ Broken(false), RealPass(true), action(AbortProcessAction),
+ DT(0), msgs( std::ios::app | std::ios::out ) {}
Verifier( VerifierFailureAction ctn )
- : Broken(false), RealPass(true), action(ctn), EF(0),
- msgs( std::ios::app | std::ios::out ) {}
+ : FunctionPass((intptr_t)&ID),
+ Broken(false), RealPass(true), action(ctn), DT(0),
+ msgs( std::ios::app | std::ios::out ) {}
Verifier(bool AB )
- : Broken(false), RealPass(true),
- action( AB ? AbortProcessAction : PrintMessageAction), EF(0),
- msgs( std::ios::app | std::ios::out ) {}
- Verifier(ETForest &ef)
- : Broken(false), RealPass(false), action(PrintMessageAction),
- EF(&ef), msgs( std::ios::app | std::ios::out ) {}
+ : FunctionPass((intptr_t)&ID),
+ Broken(false), RealPass(true),
+ action( AB ? AbortProcessAction : PrintMessageAction), DT(0),
+ msgs( std::ios::app | std::ios::out ) {}
+ Verifier(DominatorTree &dt)
+ : FunctionPass((intptr_t)&ID),
+ Broken(false), RealPass(false), action(PrintMessageAction),
+ DT(&dt), msgs( std::ios::app | std::ios::out ) {}
bool doInitialization(Module &M) {
Mod = &M;
- verifySymbolTable(M.getSymbolTable());
+ verifyTypeSymbolTable(M.getTypeSymbolTable());
// If this is a real pass, in a pass manager, we must abort before
// returning back to the pass manager, or else the pass manager may try to
bool runOnFunction(Function &F) {
// Get dominator information if we are being run by PassManager
- if (RealPass) EF = &getAnalysis<ETForest>();
+ if (RealPass) DT = &getAnalysis<DominatorTree>();
+
+ Mod = F.getParent();
+
visit(F);
InstsInThisBlock.clear();
visitGlobalValue(*I);
// Check to make sure function prototypes are okay.
- if (I->isExternal()) visitFunction(*I);
+ if (I->isDeclaration()) visitFunction(*I);
}
for (Module::global_iterator I = M.global_begin(), E = M.global_end();
I != E; ++I)
visitGlobalVariable(*I);
+ for (Module::alias_iterator I = M.alias_begin(), E = M.alias_end();
+ I != E; ++I)
+ visitGlobalAlias(*I);
+
// If the module is broken, abort at this time.
return abortIfBroken();
}
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
+ AU.addRequiredID(PreVerifyID);
if (RealPass)
- AU.addRequired<ETForest>();
+ AU.addRequired<DominatorTree>();
}
/// abortIfBroken - If the module is broken and we are supposed to abort on
switch (action) {
case AbortProcessAction:
msgs << "compilation aborted!\n";
- std::cerr << msgs.str();
+ cerr << msgs.str();
abort();
case PrintMessageAction:
msgs << "verification continues.\n";
- std::cerr << msgs.str();
+ cerr << msgs.str();
return false;
case ReturnStatusAction:
msgs << "compilation terminated.\n";
// Verification methods...
- void verifySymbolTable(SymbolTable &ST);
+ void verifyTypeSymbolTable(TypeSymbolTable &ST);
void visitGlobalValue(GlobalValue &GV);
void visitGlobalVariable(GlobalVariable &GV);
+ void visitGlobalAlias(GlobalAlias &GA);
void visitFunction(Function &F);
void visitBasicBlock(BasicBlock &BB);
+ void visitTruncInst(TruncInst &I);
+ void visitZExtInst(ZExtInst &I);
+ void visitSExtInst(SExtInst &I);
+ void visitFPTruncInst(FPTruncInst &I);
+ void visitFPExtInst(FPExtInst &I);
+ void visitFPToUIInst(FPToUIInst &I);
+ void visitFPToSIInst(FPToSIInst &I);
+ void visitUIToFPInst(UIToFPInst &I);
+ void visitSIToFPInst(SIToFPInst &I);
+ void visitIntToPtrInst(IntToPtrInst &I);
+ void visitPtrToIntInst(PtrToIntInst &I);
+ void visitBitCastInst(BitCastInst &I);
void visitPHINode(PHINode &PN);
void visitBinaryOperator(BinaryOperator &B);
- void visitShiftInst(ShiftInst &SI);
+ void visitICmpInst(ICmpInst &IC);
+ void visitFCmpInst(FCmpInst &FC);
void visitExtractElementInst(ExtractElementInst &EI);
void visitInsertElementInst(InsertElementInst &EI);
void visitShuffleVectorInst(ShuffleVectorInst &EI);
void visitVAArgInst(VAArgInst &VAA) { visitInstruction(VAA); }
void visitCallInst(CallInst &CI);
+ void visitInvokeInst(InvokeInst &II);
void visitGetElementPtrInst(GetElementPtrInst &GEP);
void visitLoadInst(LoadInst &LI);
void visitStoreInst(StoreInst &SI);
void visitUserOp1(Instruction &I);
void visitUserOp2(Instruction &I) { visitUserOp1(I); }
void visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI);
+ void visitAllocationInst(AllocationInst &AI);
- void VerifyIntrinsicPrototype(Function *F, ...);
+ void VerifyCallSite(CallSite CS);
+ void VerifyIntrinsicPrototype(Intrinsic::ID ID, Function *F,
+ unsigned Count, ...);
+ void VerifyAttrs(uint16_t Attrs, const Type *Ty, bool isReturnValue,
+ const Value *V);
+ void VerifyFunctionAttrs(const FunctionType *FT, const ParamAttrsList *Attrs,
+ const Value *V);
void WriteValue(const Value *V) {
if (!V) return;
if (isa<Instruction>(V)) {
msgs << *V;
} else {
- WriteAsOperand (msgs, V, true, true, Mod);
+ WriteAsOperand(msgs, V, true, Mod);
msgs << "\n";
}
}
}
};
+ char Verifier::ID = 0;
RegisterPass<Verifier> X("verify", "Module Verifier");
} // End anonymous namespace
void Verifier::visitGlobalValue(GlobalValue &GV) {
- Assert1(!GV.isExternal() ||
+ Assert1(!GV.isDeclaration() ||
GV.hasExternalLinkage() ||
GV.hasDLLImportLinkage() ||
- GV.hasExternalWeakLinkage(),
+ GV.hasExternalWeakLinkage() ||
+ (isa<GlobalAlias>(GV) &&
+ (GV.hasInternalLinkage() || GV.hasWeakLinkage())),
"Global is external, but doesn't have external or dllimport or weak linkage!",
&GV);
- Assert1(!GV.hasDLLImportLinkage() || GV.isExternal(),
+ Assert1(!GV.hasDLLImportLinkage() || GV.isDeclaration(),
"Global is marked as dllimport, but not external", &GV);
Assert1(!GV.hasAppendingLinkage() || isa<GlobalVariable>(GV),
}
void Verifier::visitGlobalVariable(GlobalVariable &GV) {
- if (GV.hasInitializer())
+ if (GV.hasInitializer()) {
Assert1(GV.getInitializer()->getType() == GV.getType()->getElementType(),
"Global variable initializer type does not match global "
"variable type!", &GV);
+ } else {
+ Assert1(GV.hasExternalLinkage() || GV.hasDLLImportLinkage() ||
+ GV.hasExternalWeakLinkage(),
+ "invalid linkage type for global declaration", &GV);
+ }
visitGlobalValue(GV);
}
+void Verifier::visitGlobalAlias(GlobalAlias &GA) {
+ Assert1(!GA.getName().empty(),
+ "Alias name cannot be empty!", &GA);
+ Assert1(GA.hasExternalLinkage() || GA.hasInternalLinkage() ||
+ GA.hasWeakLinkage(),
+ "Alias should have external or external weak linkage!", &GA);
+ Assert1(GA.getType() == GA.getAliasee()->getType(),
+ "Alias and aliasee types should match!", &GA);
+
+ if (!isa<GlobalValue>(GA.getAliasee())) {
+ const ConstantExpr *CE = dyn_cast<ConstantExpr>(GA.getAliasee());
+ Assert1(CE && CE->getOpcode() == Instruction::BitCast &&
+ isa<GlobalValue>(CE->getOperand(0)),
+ "Aliasee should be either GlobalValue or bitcast of GlobalValue",
+ &GA);
+ }
+
+ visitGlobalValue(GA);
+}
+
+void Verifier::verifyTypeSymbolTable(TypeSymbolTable &ST) {
+}
-// verifySymbolTable - Verify that a function or module symbol table is ok
-//
-void Verifier::verifySymbolTable(SymbolTable &ST) {
-
- // Loop over all of the values in all type planes in the symbol table.
- for (SymbolTable::plane_const_iterator PI = ST.plane_begin(),
- PE = ST.plane_end(); PI != PE; ++PI)
- for (SymbolTable::value_const_iterator VI = PI->second.begin(),
- VE = PI->second.end(); VI != VE; ++VI) {
- Value *V = VI->second;
- // Check that there are no void typed values in the symbol table. Values
- // with a void type cannot be put into symbol tables because they cannot
- // have names!
- Assert1(V->getType() != Type::VoidTy,
- "Values with void type are not allowed to have names!", V);
+// VerifyAttrs - Check the given parameter attributes for an argument or return
+// value of the specified type. The value V is printed in error messages.
+void Verifier::VerifyAttrs(uint16_t Attrs, const Type *Ty, bool isReturnValue,
+ const Value *V) {
+ if (Attrs == ParamAttr::None)
+ return;
+
+ if (isReturnValue) {
+ uint16_t RetI = Attrs & ParamAttr::ParameterOnly;
+ Assert1(!RetI, "Attribute " + ParamAttrsList::getParamAttrsText(RetI) +
+ "does not apply to return values!", V);
+ } else {
+ uint16_t ParmI = Attrs & ParamAttr::ReturnOnly;
+ Assert1(!ParmI, "Attribute " + ParamAttrsList::getParamAttrsText(ParmI) +
+ "only applies to return values!", V);
+ }
+
+ for (unsigned i = 0;
+ i < array_lengthof(ParamAttr::MutuallyIncompatible); ++i) {
+ uint16_t MutI = Attrs & ParamAttr::MutuallyIncompatible[i];
+ Assert1(!(MutI & (MutI - 1)), "Attributes " +
+ ParamAttrsList::getParamAttrsText(MutI) + "are incompatible!", V);
+ }
+
+ uint16_t TypeI = Attrs & ParamAttr::typeIncompatible(Ty);
+ Assert1(!TypeI, "Wrong type for attribute " +
+ ParamAttrsList::getParamAttrsText(TypeI), V);
+}
+
+// VerifyFunctionAttrs - Check parameter attributes against a function type.
+// The value V is printed in error messages.
+void Verifier::VerifyFunctionAttrs(const FunctionType *FT,
+ const ParamAttrsList *Attrs,
+ const Value *V) {
+ if (!Attrs)
+ return;
+
+ bool SawNest = false;
+
+ for (unsigned Idx = 0; Idx <= FT->getNumParams(); ++Idx) {
+ uint16_t Attr = Attrs->getParamAttrs(Idx);
+
+ VerifyAttrs(Attr, FT->getParamType(Idx-1), !Idx, V);
+
+ if (Attr & ParamAttr::Nest) {
+ Assert1(!SawNest, "More than one parameter has attribute nest!", V);
+ SawNest = true;
+ }
+
+ if (Attr & ParamAttr::StructRet) {
+ Assert1(Idx == 1, "Attribute sret not on first parameter!", V);
}
+ }
}
// visitFunction - Verify that a function is ok.
void Verifier::visitFunction(Function &F) {
// Check function arguments.
const FunctionType *FT = F.getFunctionType();
- unsigned NumArgs = F.getArgumentList().size();
+ unsigned NumArgs = F.arg_size();
Assert2(FT->getNumParams() == NumArgs,
"# formal arguments must match # of arguments for function type!",
F.getReturnType() == Type::VoidTy,
"Functions cannot return aggregate values!", &F);
+ Assert1(!F.isStructReturn() || FT->getReturnType() == Type::VoidTy,
+ "Invalid struct-return function!", &F);
+
+ const ParamAttrsList *Attrs = F.getParamAttrs();
+
+ Assert1(!Attrs ||
+ (Attrs->size() &&
+ Attrs->getParamIndex(Attrs->size()-1) <= FT->getNumParams()),
+ "Attributes after last parameter!", &F);
+
+ // Check function attributes.
+ VerifyFunctionAttrs(FT, Attrs, &F);
+
// Check that this function meets the restrictions on this calling convention.
switch (F.getCallingConv()) {
default:
break;
case CallingConv::C:
break;
- case CallingConv::CSRet:
- Assert1(FT->getReturnType() == Type::VoidTy &&
- FT->getNumParams() > 0 && isa<PointerType>(FT->getParamType(0)),
- "Invalid struct-return function!", &F);
- break;
case CallingConv::Fast:
case CallingConv::Cold:
case CallingConv::X86_FastCall:
// Check that the argument values match the function type for this function...
unsigned i = 0;
- for (Function::arg_iterator I = F.arg_begin(), E = F.arg_end(); I != E; ++I, ++i) {
+ for (Function::arg_iterator I = F.arg_begin(), E = F.arg_end();
+ I != E; ++I, ++i) {
Assert2(I->getType() == FT->getParamType(i),
"Argument value does not match function argument type!",
I, FT->getParamType(i));
"Functions cannot take aggregates as arguments by value!", I);
}
- if (!F.isExternal()) {
- verifySymbolTable(F.getSymbolTable());
-
+ if (F.isDeclaration()) {
+ Assert1(F.hasExternalLinkage() || F.hasDLLImportLinkage() ||
+ F.hasExternalWeakLinkage(),
+ "invalid linkage type for function declaration", &F);
+ } else {
+ // Verify that this function (which has a body) is not named "llvm.*". It
+ // is not legal to define intrinsics.
+ if (F.getName().size() >= 5)
+ Assert1(F.getName().substr(0, 5) != "llvm.",
+ "llvm intrinsics cannot be defined!", &F);
+
// Check the entry node
BasicBlock *Entry = &F.getEntryBlock();
Assert1(pred_begin(Entry) == pred_end(Entry),
// Check constraints that this basic block imposes on all of the PHI nodes in
// it.
if (isa<PHINode>(BB.front())) {
- std::vector<BasicBlock*> Preds(pred_begin(&BB), pred_end(&BB));
+ SmallVector<BasicBlock*, 8> Preds(pred_begin(&BB), pred_end(&BB));
+ SmallVector<std::pair<BasicBlock*, Value*>, 8> Values;
std::sort(Preds.begin(), Preds.end());
PHINode *PN;
for (BasicBlock::iterator I = BB.begin(); (PN = dyn_cast<PHINode>(I));++I) {
"parent basic block!", PN);
// Get and sort all incoming values in the PHI node...
- std::vector<std::pair<BasicBlock*, Value*> > Values;
+ Values.clear();
Values.reserve(PN->getNumIncomingValues());
for (unsigned i = 0, e = PN->getNumIncomingValues(); i != e; ++i)
Values.push_back(std::make_pair(PN->getIncomingBlock(i),
}
void Verifier::visitSelectInst(SelectInst &SI) {
- Assert1(SI.getCondition()->getType() == Type::BoolTy,
+ Assert1(SI.getCondition()->getType() == Type::Int1Ty,
"Select condition type must be bool!", &SI);
Assert1(SI.getTrueValue()->getType() == SI.getFalseValue()->getType(),
"Select values must have identical types!", &SI);
Assert1(0, "User-defined operators should not live outside of a pass!", &I);
}
+void Verifier::visitTruncInst(TruncInst &I) {
+ // Get the source and destination types
+ const Type *SrcTy = I.getOperand(0)->getType();
+ const Type *DestTy = I.getType();
+
+ // Get the size of the types in bits, we'll need this later
+ unsigned SrcBitSize = SrcTy->getPrimitiveSizeInBits();
+ unsigned DestBitSize = DestTy->getPrimitiveSizeInBits();
+
+ Assert1(SrcTy->isInteger(), "Trunc only operates on integer", &I);
+ Assert1(DestTy->isInteger(), "Trunc only produces integer", &I);
+ Assert1(SrcBitSize > DestBitSize,"DestTy too big for Trunc", &I);
+
+ visitInstruction(I);
+}
+
+void Verifier::visitZExtInst(ZExtInst &I) {
+ // Get the source and destination types
+ const Type *SrcTy = I.getOperand(0)->getType();
+ const Type *DestTy = I.getType();
+
+ // Get the size of the types in bits, we'll need this later
+ Assert1(SrcTy->isInteger(), "ZExt only operates on integer", &I);
+ Assert1(DestTy->isInteger(), "ZExt only produces an integer", &I);
+ unsigned SrcBitSize = SrcTy->getPrimitiveSizeInBits();
+ unsigned DestBitSize = DestTy->getPrimitiveSizeInBits();
+
+ Assert1(SrcBitSize < DestBitSize,"Type too small for ZExt", &I);
+
+ visitInstruction(I);
+}
+
+void Verifier::visitSExtInst(SExtInst &I) {
+ // Get the source and destination types
+ const Type *SrcTy = I.getOperand(0)->getType();
+ const Type *DestTy = I.getType();
+
+ // Get the size of the types in bits, we'll need this later
+ unsigned SrcBitSize = SrcTy->getPrimitiveSizeInBits();
+ unsigned DestBitSize = DestTy->getPrimitiveSizeInBits();
+
+ Assert1(SrcTy->isInteger(), "SExt only operates on integer", &I);
+ Assert1(DestTy->isInteger(), "SExt only produces an integer", &I);
+ Assert1(SrcBitSize < DestBitSize,"Type too small for SExt", &I);
+
+ visitInstruction(I);
+}
+
+void Verifier::visitFPTruncInst(FPTruncInst &I) {
+ // Get the source and destination types
+ const Type *SrcTy = I.getOperand(0)->getType();
+ const Type *DestTy = I.getType();
+ // Get the size of the types in bits, we'll need this later
+ unsigned SrcBitSize = SrcTy->getPrimitiveSizeInBits();
+ unsigned DestBitSize = DestTy->getPrimitiveSizeInBits();
+
+ Assert1(SrcTy->isFloatingPoint(),"FPTrunc only operates on FP", &I);
+ Assert1(DestTy->isFloatingPoint(),"FPTrunc only produces an FP", &I);
+ Assert1(SrcBitSize > DestBitSize,"DestTy too big for FPTrunc", &I);
+
+ visitInstruction(I);
+}
+
+void Verifier::visitFPExtInst(FPExtInst &I) {
+ // Get the source and destination types
+ const Type *SrcTy = I.getOperand(0)->getType();
+ const Type *DestTy = I.getType();
+
+ // Get the size of the types in bits, we'll need this later
+ unsigned SrcBitSize = SrcTy->getPrimitiveSizeInBits();
+ unsigned DestBitSize = DestTy->getPrimitiveSizeInBits();
+
+ Assert1(SrcTy->isFloatingPoint(),"FPExt only operates on FP", &I);
+ Assert1(DestTy->isFloatingPoint(),"FPExt only produces an FP", &I);
+ Assert1(SrcBitSize < DestBitSize,"DestTy too small for FPExt", &I);
+
+ visitInstruction(I);
+}
+
+void Verifier::visitUIToFPInst(UIToFPInst &I) {
+ // Get the source and destination types
+ const Type *SrcTy = I.getOperand(0)->getType();
+ const Type *DestTy = I.getType();
+
+ bool SrcVec = SrcTy->getTypeID() == Type::VectorTyID;
+ bool DstVec = DestTy->getTypeID() == Type::VectorTyID;
+
+ Assert1(SrcVec == DstVec,"UIToFP source and dest must both be vector or scalar", &I);
+ Assert1(SrcTy->isIntOrIntVector(),"UIToFP source must be integer or integer vector", &I);
+ Assert1(DestTy->isFPOrFPVector(),"UIToFP result must be FP or FP vector", &I);
+
+ if (SrcVec && DstVec)
+ Assert1(cast<VectorType>(SrcTy)->getNumElements() == cast<VectorType>(DestTy)->getNumElements(),
+ "UIToFP source and dest vector length mismatch", &I);
+
+ visitInstruction(I);
+}
+
+void Verifier::visitSIToFPInst(SIToFPInst &I) {
+ // Get the source and destination types
+ const Type *SrcTy = I.getOperand(0)->getType();
+ const Type *DestTy = I.getType();
+
+ bool SrcVec = SrcTy->getTypeID() == Type::VectorTyID;
+ bool DstVec = DestTy->getTypeID() == Type::VectorTyID;
+
+ Assert1(SrcVec == DstVec,"SIToFP source and dest must both be vector or scalar", &I);
+ Assert1(SrcTy->isIntOrIntVector(),"SIToFP source must be integer or integer vector", &I);
+ Assert1(DestTy->isFPOrFPVector(),"SIToFP result must be FP or FP vector", &I);
+
+ if (SrcVec && DstVec)
+ Assert1(cast<VectorType>(SrcTy)->getNumElements() == cast<VectorType>(DestTy)->getNumElements(),
+ "SIToFP source and dest vector length mismatch", &I);
+
+ visitInstruction(I);
+}
+
+void Verifier::visitFPToUIInst(FPToUIInst &I) {
+ // Get the source and destination types
+ const Type *SrcTy = I.getOperand(0)->getType();
+ const Type *DestTy = I.getType();
+
+ bool SrcVec = SrcTy->getTypeID() == Type::VectorTyID;
+ bool DstVec = DestTy->getTypeID() == Type::VectorTyID;
+
+ Assert1(SrcVec == DstVec,"FPToUI source and dest must both be vector or scalar", &I);
+ Assert1(SrcTy->isFPOrFPVector(),"FPToUI source must be FP or FP vector", &I);
+ Assert1(DestTy->isIntOrIntVector(),"FPToUI result must be integer or integer vector", &I);
+
+ if (SrcVec && DstVec)
+ Assert1(cast<VectorType>(SrcTy)->getNumElements() == cast<VectorType>(DestTy)->getNumElements(),
+ "FPToUI source and dest vector length mismatch", &I);
+
+ visitInstruction(I);
+}
+
+void Verifier::visitFPToSIInst(FPToSIInst &I) {
+ // Get the source and destination types
+ const Type *SrcTy = I.getOperand(0)->getType();
+ const Type *DestTy = I.getType();
+
+ bool SrcVec = SrcTy->getTypeID() == Type::VectorTyID;
+ bool DstVec = DestTy->getTypeID() == Type::VectorTyID;
+
+ Assert1(SrcVec == DstVec,"FPToSI source and dest must both be vector or scalar", &I);
+ Assert1(SrcTy->isFPOrFPVector(),"FPToSI source must be FP or FP vector", &I);
+ Assert1(DestTy->isIntOrIntVector(),"FPToSI result must be integer or integer vector", &I);
+
+ if (SrcVec && DstVec)
+ Assert1(cast<VectorType>(SrcTy)->getNumElements() == cast<VectorType>(DestTy)->getNumElements(),
+ "FPToSI source and dest vector length mismatch", &I);
+
+ visitInstruction(I);
+}
+
+void Verifier::visitPtrToIntInst(PtrToIntInst &I) {
+ // Get the source and destination types
+ const Type *SrcTy = I.getOperand(0)->getType();
+ const Type *DestTy = I.getType();
+
+ Assert1(isa<PointerType>(SrcTy), "PtrToInt source must be pointer", &I);
+ Assert1(DestTy->isInteger(), "PtrToInt result must be integral", &I);
+
+ visitInstruction(I);
+}
+
+void Verifier::visitIntToPtrInst(IntToPtrInst &I) {
+ // Get the source and destination types
+ const Type *SrcTy = I.getOperand(0)->getType();
+ const Type *DestTy = I.getType();
+
+ Assert1(SrcTy->isInteger(), "IntToPtr source must be an integral", &I);
+ Assert1(isa<PointerType>(DestTy), "IntToPtr result must be a pointer",&I);
+
+ visitInstruction(I);
+}
+
+void Verifier::visitBitCastInst(BitCastInst &I) {
+ // Get the source and destination types
+ const Type *SrcTy = I.getOperand(0)->getType();
+ const Type *DestTy = I.getType();
+
+ // Get the size of the types in bits, we'll need this later
+ unsigned SrcBitSize = SrcTy->getPrimitiveSizeInBits();
+ unsigned DestBitSize = DestTy->getPrimitiveSizeInBits();
+
+ // BitCast implies a no-op cast of type only. No bits change.
+ // However, you can't cast pointers to anything but pointers.
+ Assert1(isa<PointerType>(DestTy) == isa<PointerType>(DestTy),
+ "Bitcast requires both operands to be pointer or neither", &I);
+ Assert1(SrcBitSize == DestBitSize, "Bitcast requies types of same width", &I);
+
+ visitInstruction(I);
+}
+
/// visitPHINode - Ensure that a PHI node is well formed.
///
void Verifier::visitPHINode(PHINode &PN) {
// This can be tested by checking whether the instruction before this is
// either nonexistent (because this is begin()) or is a PHI node. If not,
// then there is some other instruction before a PHI.
- Assert2(&PN.getParent()->front() == &PN || isa<PHINode>(PN.getPrev()),
+ Assert2(&PN == &PN.getParent()->front() ||
+ isa<PHINode>(--BasicBlock::iterator(&PN)),
"PHI nodes not grouped at top of basic block!",
&PN, PN.getParent());
visitInstruction(PN);
}
-void Verifier::visitCallInst(CallInst &CI) {
- Assert1(isa<PointerType>(CI.getOperand(0)->getType()),
- "Called function must be a pointer!", &CI);
- const PointerType *FPTy = cast<PointerType>(CI.getOperand(0)->getType());
+void Verifier::VerifyCallSite(CallSite CS) {
+ Instruction *I = CS.getInstruction();
+
+ Assert1(isa<PointerType>(CS.getCalledValue()->getType()),
+ "Called function must be a pointer!", I);
+ const PointerType *FPTy = cast<PointerType>(CS.getCalledValue()->getType());
Assert1(isa<FunctionType>(FPTy->getElementType()),
- "Called function is not pointer to function type!", &CI);
+ "Called function is not pointer to function type!", I);
const FunctionType *FTy = cast<FunctionType>(FPTy->getElementType());
// Verify that the correct number of arguments are being passed
if (FTy->isVarArg())
- Assert1(CI.getNumOperands()-1 >= FTy->getNumParams(),
- "Called function requires more parameters than were provided!",&CI);
+ Assert1(CS.arg_size() >= FTy->getNumParams(),
+ "Called function requires more parameters than were provided!",I);
else
- Assert1(CI.getNumOperands()-1 == FTy->getNumParams(),
- "Incorrect number of arguments passed to called function!", &CI);
+ Assert1(CS.arg_size() == FTy->getNumParams(),
+ "Incorrect number of arguments passed to called function!", I);
// Verify that all arguments to the call match the function type...
for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i)
- Assert3(CI.getOperand(i+1)->getType() == FTy->getParamType(i),
+ Assert3(CS.getArgument(i)->getType() == FTy->getParamType(i),
"Call parameter type does not match function signature!",
- CI.getOperand(i+1), FTy->getParamType(i), &CI);
+ CS.getArgument(i), FTy->getParamType(i), I);
+
+ const ParamAttrsList *Attrs = CS.getParamAttrs();
+
+ Assert1(!Attrs ||
+ (Attrs->size() &&
+ Attrs->getParamIndex(Attrs->size()-1) <= CS.arg_size()),
+ "Attributes after last argument!", I);
+
+ // Verify call attributes.
+ VerifyFunctionAttrs(FTy, Attrs, I);
+
+ if (Attrs && FTy->isVarArg())
+ // Check attributes on the varargs part.
+ for (unsigned Idx = 1 + FTy->getNumParams(); Idx <= CS.arg_size(); ++Idx) {
+ uint16_t Attr = Attrs->getParamAttrs(Idx);
- if (Function *F = CI.getCalledFunction())
+ VerifyAttrs(Attr, CS.getArgument(Idx-1)->getType(), false, I);
+
+ uint16_t VArgI = Attr & ParamAttr::VarArgsIncompatible;
+ Assert1(!VArgI, "Attribute " + ParamAttrsList::getParamAttrsText(VArgI) +
+ "cannot be used for vararg call arguments!", I);
+ }
+
+ visitInstruction(*I);
+}
+
+void Verifier::visitCallInst(CallInst &CI) {
+ VerifyCallSite(&CI);
+
+ if (Function *F = CI.getCalledFunction()) {
if (Intrinsic::ID ID = (Intrinsic::ID)F->getIntrinsicID())
visitIntrinsicFunctionCall(ID, CI);
+ }
+}
- visitInstruction(CI);
+void Verifier::visitInvokeInst(InvokeInst &II) {
+ VerifyCallSite(&II);
}
/// visitBinaryOperator - Check that both arguments to the binary operator are
Assert1(B.getOperand(0)->getType() == B.getOperand(1)->getType(),
"Both operands to a binary operator are not of the same type!", &B);
+ switch (B.getOpcode()) {
// Check that logical operators are only used with integral operands.
- if (B.getOpcode() == Instruction::And || B.getOpcode() == Instruction::Or ||
- B.getOpcode() == Instruction::Xor) {
- Assert1(B.getType()->isIntegral() ||
- (isa<PackedType>(B.getType()) &&
- cast<PackedType>(B.getType())->getElementType()->isIntegral()),
+ case Instruction::And:
+ case Instruction::Or:
+ case Instruction::Xor:
+ Assert1(B.getType()->isInteger() ||
+ (isa<VectorType>(B.getType()) &&
+ cast<VectorType>(B.getType())->getElementType()->isInteger()),
"Logical operators only work with integral types!", &B);
Assert1(B.getType() == B.getOperand(0)->getType(),
"Logical operators must have same type for operands and result!",
&B);
- } else if (isa<SetCondInst>(B)) {
- // Check that setcc instructions return bool
- Assert1(B.getType() == Type::BoolTy,
- "setcc instructions must return boolean values!", &B);
- } else {
+ break;
+ case Instruction::Shl:
+ case Instruction::LShr:
+ case Instruction::AShr:
+ Assert1(B.getType()->isInteger(),
+ "Shift must return an integer result!", &B);
+ Assert1(B.getType() == B.getOperand(0)->getType(),
+ "Shift return type must be same as operands!", &B);
+ /* FALL THROUGH */
+ default:
// Arithmetic operators only work on integer or fp values
Assert1(B.getType() == B.getOperand(0)->getType(),
"Arithmetic operators must have same type for operands and result!",
&B);
Assert1(B.getType()->isInteger() || B.getType()->isFloatingPoint() ||
- isa<PackedType>(B.getType()),
- "Arithmetic operators must have integer, fp, or packed type!", &B);
+ isa<VectorType>(B.getType()),
+ "Arithmetic operators must have integer, fp, or vector type!", &B);
+ break;
}
visitInstruction(B);
}
-void Verifier::visitShiftInst(ShiftInst &SI) {
- Assert1(SI.getType()->isInteger(),
- "Shift must return an integer result!", &SI);
- Assert1(SI.getType() == SI.getOperand(0)->getType(),
- "Shift return type must be same as first operand!", &SI);
- Assert1(SI.getOperand(1)->getType() == Type::UByteTy,
- "Second operand to shift must be ubyte type!", &SI);
- visitInstruction(SI);
+void Verifier::visitICmpInst(ICmpInst& IC) {
+ // Check that the operands are the same type
+ const Type* Op0Ty = IC.getOperand(0)->getType();
+ const Type* Op1Ty = IC.getOperand(1)->getType();
+ Assert1(Op0Ty == Op1Ty,
+ "Both operands to ICmp instruction are not of the same type!", &IC);
+ // Check that the operands are the right type
+ Assert1(Op0Ty->isInteger() || isa<PointerType>(Op0Ty),
+ "Invalid operand types for ICmp instruction", &IC);
+ visitInstruction(IC);
+}
+
+void Verifier::visitFCmpInst(FCmpInst& FC) {
+ // Check that the operands are the same type
+ const Type* Op0Ty = FC.getOperand(0)->getType();
+ const Type* Op1Ty = FC.getOperand(1)->getType();
+ Assert1(Op0Ty == Op1Ty,
+ "Both operands to FCmp instruction are not of the same type!", &FC);
+ // Check that the operands are the right type
+ Assert1(Op0Ty->isFloatingPoint(),
+ "Invalid operand types for FCmp instruction", &FC);
+ visitInstruction(FC);
}
void Verifier::visitExtractElementInst(ExtractElementInst &EI) {
"Result of shufflevector must match first operand type!", &SV);
// Check to see if Mask is valid.
- if (const ConstantPacked *MV = dyn_cast<ConstantPacked>(SV.getOperand(2))) {
+ if (const ConstantVector *MV = dyn_cast<ConstantVector>(SV.getOperand(2))) {
for (unsigned i = 0, e = MV->getNumOperands(); i != e; ++i) {
- Assert1(isa<ConstantUInt>(MV->getOperand(i)) ||
+ Assert1(isa<ConstantInt>(MV->getOperand(i)) ||
isa<UndefValue>(MV->getOperand(i)),
"Invalid shufflevector shuffle mask!", &SV);
}
}
void Verifier::visitGetElementPtrInst(GetElementPtrInst &GEP) {
+ SmallVector<Value*, 16> Idxs(GEP.idx_begin(), GEP.idx_end());
const Type *ElTy =
GetElementPtrInst::getIndexedType(GEP.getOperand(0)->getType(),
- std::vector<Value*>(GEP.idx_begin(), GEP.idx_end()), true);
+ Idxs.begin(), Idxs.end(), true);
Assert1(ElTy, "Invalid indices for GEP pointer type!", &GEP);
- Assert2(PointerType::get(ElTy) == GEP.getType(),
+ Assert2(isa<PointerType>(GEP.getType()) &&
+ cast<PointerType>(GEP.getType())->getElementType() == ElTy,
"GEP is not of right type for indices!", &GEP, ElTy);
visitInstruction(GEP);
}
visitInstruction(SI);
}
+void Verifier::visitAllocationInst(AllocationInst &AI) {
+ const PointerType *Ptr = AI.getType();
+ Assert(Ptr->getAddressSpace() == 0,
+ "Allocation instruction pointer not in the generic address space!");
+ visitInstruction(AI);
+}
+
/// verifyInstruction - Verify that an instruction is well formed.
///
for (Value::use_iterator UI = I.use_begin(), UE = I.use_end();
UI != UE; ++UI)
Assert1(*UI != (User*)&I ||
- !EF->dominates(&BB->getParent()->getEntryBlock(), BB),
+ !DT->dominates(&BB->getParent()->getEntryBlock(), BB),
"Only PHI nodes may reference their own value!", &I);
}
// taken.
Assert1(!F->isIntrinsic() || (i == 0 && isa<CallInst>(I)),
"Cannot take the address of an intrinsic!", &I);
+ Assert1(F->getParent() == Mod, "Referencing function in another module!",
+ &I);
} else if (BasicBlock *OpBB = dyn_cast<BasicBlock>(I.getOperand(i))) {
Assert1(OpBB->getParent() == BB->getParent(),
"Referring to a basic block in another function!", &I);
} else if (Argument *OpArg = dyn_cast<Argument>(I.getOperand(i))) {
Assert1(OpArg->getParent() == BB->getParent(),
"Referring to an argument in another function!", &I);
+ } else if (GlobalValue *GV = dyn_cast<GlobalValue>(I.getOperand(i))) {
+ Assert1(GV->getParent() == Mod, "Referencing global in another module!",
+ &I);
} else if (Instruction *Op = dyn_cast<Instruction>(I.getOperand(i))) {
BasicBlock *OpBlock = Op->getParent();
if (!isa<PHINode>(I)) {
// Invoke results are only usable in the normal destination, not in the
// exceptional destination.
- if (InvokeInst *II = dyn_cast<InvokeInst>(Op))
+ if (InvokeInst *II = dyn_cast<InvokeInst>(Op)) {
OpBlock = II->getNormalDest();
- else if (OpBlock == BB) {
+
+ Assert2(OpBlock != II->getUnwindDest(),
+ "No uses of invoke possible due to dominance structure!",
+ Op, II);
+
+ // If the normal successor of an invoke instruction has multiple
+ // predecessors, then the normal edge from the invoke is critical, so
+ // the invoke value can only be live if the destination block
+ // dominates all of it's predecessors (other than the invoke) or if
+ // the invoke value is only used by a phi in the successor.
+ if (!OpBlock->getSinglePredecessor() &&
+ DT->dominates(&BB->getParent()->getEntryBlock(), BB)) {
+ // The first case we allow is if the use is a PHI operand in the
+ // normal block, and if that PHI operand corresponds to the invoke's
+ // block.
+ bool Bad = true;
+ if (PHINode *PN = dyn_cast<PHINode>(&I))
+ if (PN->getParent() == OpBlock &&
+ PN->getIncomingBlock(i/2) == Op->getParent())
+ Bad = false;
+
+ // If it is used by something non-phi, then the other case is that
+ // 'OpBlock' dominates all of its predecessors other than the
+ // invoke. In this case, the invoke value can still be used.
+ if (Bad) {
+ Bad = false;
+ for (pred_iterator PI = pred_begin(OpBlock),
+ E = pred_end(OpBlock); PI != E; ++PI) {
+ if (*PI != II->getParent() && !DT->dominates(OpBlock, *PI)) {
+ Bad = true;
+ break;
+ }
+ }
+ }
+ Assert2(!Bad,
+ "Invoke value defined on critical edge but not dead!", &I,
+ Op);
+ }
+ } else if (OpBlock == BB) {
// If they are in the same basic block, make sure that the definition
// comes before the use.
Assert2(InstsInThisBlock.count(Op) ||
- !EF->dominates(&BB->getParent()->getEntryBlock(), BB),
+ !DT->dominates(&BB->getParent()->getEntryBlock(), BB),
"Instruction does not dominate all uses!", Op, &I);
}
// Definition must dominate use unless use is unreachable!
- Assert2(EF->dominates(OpBlock, BB) ||
- !EF->dominates(&BB->getParent()->getEntryBlock(), BB),
+ Assert2(DT->dominates(OpBlock, BB) ||
+ !DT->dominates(&BB->getParent()->getEntryBlock(), BB),
"Instruction does not dominate all uses!", Op, &I);
} else {
// PHI nodes are more difficult than other nodes because they actually
// "use" the value in the predecessor basic blocks they correspond to.
BasicBlock *PredBB = cast<BasicBlock>(I.getOperand(i+1));
- Assert2(EF->dominates(OpBlock, PredBB) ||
- !EF->dominates(&BB->getParent()->getEntryBlock(), PredBB),
+ Assert2(DT->dominates(OpBlock, PredBB) ||
+ !DT->dominates(&BB->getParent()->getEntryBlock(), PredBB),
"Instruction does not dominate all uses!", Op, &I);
}
} else if (isa<InlineAsm>(I.getOperand(i))) {
- Assert1(i == 0 && isa<CallInst>(I),
+ Assert1(i == 0 && (isa<CallInst>(I) || isa<InvokeInst>(I)),
"Cannot take the address of an inline asm!", &I);
}
}
///
void Verifier::visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI) {
Function *IF = CI.getCalledFunction();
- Assert1(IF->isExternal(), "Intrinsic functions should never be defined!", IF);
+ Assert1(IF->isDeclaration(), "Intrinsic functions should never be defined!",
+ IF);
#define GET_INTRINSIC_VERIFIER
#include "llvm/Intrinsics.gen"
#undef GET_INTRINSIC_VERIFIER
+
+ switch (ID) {
+ default:
+ break;
+ case Intrinsic::gcroot:
+ case Intrinsic::gcwrite:
+ case Intrinsic::gcread: {
+ Type *PtrTy = PointerType::getUnqual(Type::Int8Ty),
+ *PtrPtrTy = PointerType::getUnqual(PtrTy);
+
+ switch (ID) {
+ default:
+ break;
+ case Intrinsic::gcroot:
+ Assert1(CI.getOperand(1)->getType() == PtrPtrTy,
+ "Intrinsic parameter #1 is not i8**.", &CI);
+ Assert1(CI.getOperand(2)->getType() == PtrTy,
+ "Intrinsic parameter #2 is not i8*.", &CI);
+ Assert1(isa<AllocaInst>(
+ IntrinsicInst::StripPointerCasts(CI.getOperand(1))),
+ "llvm.gcroot parameter #1 must be an alloca.", &CI);
+ Assert1(isa<Constant>(CI.getOperand(2)),
+ "llvm.gcroot parameter #2 must be a constant.", &CI);
+ break;
+ case Intrinsic::gcwrite:
+ Assert1(CI.getOperand(1)->getType() == PtrTy,
+ "Intrinsic parameter #1 is not a i8*.", &CI);
+ Assert1(CI.getOperand(2)->getType() == PtrTy,
+ "Intrinsic parameter #2 is not a i8*.", &CI);
+ Assert1(CI.getOperand(3)->getType() == PtrPtrTy,
+ "Intrinsic parameter #3 is not a i8**.", &CI);
+ break;
+ case Intrinsic::gcread:
+ Assert1(CI.getOperand(1)->getType() == PtrTy,
+ "Intrinsic parameter #1 is not a i8*.", &CI);
+ Assert1(CI.getOperand(2)->getType() == PtrPtrTy,
+ "Intrinsic parameter #2 is not a i8**.", &CI);
+ break;
+ }
+
+ Assert1(CI.getParent()->getParent()->hasCollector(),
+ "Enclosing function does not specify a collector algorithm.",
+ &CI);
+ } break;
+ case Intrinsic::init_trampoline:
+ Assert1(isa<Function>(IntrinsicInst::StripPointerCasts(CI.getOperand(2))),
+ "llvm.init_trampoline parameter #2 must resolve to a function.",
+ &CI);
+ break;
+ }
}
/// VerifyIntrinsicPrototype - TableGen emits calls to this function into
/// Intrinsics.gen. This implements a little state machine that verifies the
/// prototype of intrinsics.
-void Verifier::VerifyIntrinsicPrototype(Function *F, ...) {
+void Verifier::VerifyIntrinsicPrototype(Intrinsic::ID ID,
+ Function *F,
+ unsigned Count, ...) {
va_list VA;
- va_start(VA, F);
+ va_start(VA, Count);
const FunctionType *FTy = F->getFunctionType();
+ // For overloaded intrinsics, the Suffix of the function name must match the
+ // types of the arguments. This variable keeps track of the expected
+ // suffix, to be checked at the end.
+ std::string Suffix;
+
+ if (FTy->getNumParams() + FTy->isVarArg() != Count - 1) {
+ CheckFailed("Intrinsic prototype has incorrect number of arguments!", F);
+ return;
+ }
+
// Note that "arg#0" is the return type.
- for (unsigned ArgNo = 0; 1; ++ArgNo) {
- int TypeID = va_arg(VA, int);
+ for (unsigned ArgNo = 0; ArgNo < Count; ++ArgNo) {
+ MVT::ValueType VT = va_arg(VA, MVT::ValueType);
- if (TypeID == -1) {
- if (ArgNo != FTy->getNumParams()+1)
- CheckFailed("Intrinsic prototype has too many arguments!", F);
+ if (VT == MVT::isVoid && ArgNo > 0) {
+ if (!FTy->isVarArg())
+ CheckFailed("Intrinsic prototype has no '...'!", F);
break;
}
- if (ArgNo == FTy->getNumParams()+1) {
- CheckFailed("Intrinsic prototype has too few arguments!", F);
- break;
- }
-
const Type *Ty;
- if (ArgNo == 0)
+ if (ArgNo == 0)
Ty = FTy->getReturnType();
else
Ty = FTy->getParamType(ArgNo-1);
-
- if (Ty->getTypeID() != TypeID) {
- if (ArgNo == 0)
- CheckFailed("Intrinsic prototype has incorrect result type!", F);
- else
- CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is wrong!",F);
- break;
- }
- // If this is a packed argument, verify the number and type of elements.
- if (TypeID == Type::PackedTyID) {
- const PackedType *PTy = cast<PackedType>(Ty);
- if (va_arg(VA, int) != PTy->getElementType()->getTypeID()) {
- CheckFailed("Intrinsic prototype has incorrect vector element type!",F);
+ unsigned NumElts = 0;
+ const Type *EltTy = Ty;
+ if (const VectorType *VTy = dyn_cast<VectorType>(Ty)) {
+ EltTy = VTy->getElementType();
+ NumElts = VTy->getNumElements();
+ }
+
+ if ((int)VT < 0) {
+ int Match = ~VT;
+ if (Match == 0) {
+ if (Ty != FTy->getReturnType()) {
+ CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " does not "
+ "match return type.", F);
+ break;
+ }
+ } else {
+ if (Ty != FTy->getParamType(Match-1)) {
+ CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " does not "
+ "match parameter %" + utostr(Match-1) + ".", F);
+ break;
+ }
+ }
+ } else if (VT == MVT::iAny) {
+ if (!EltTy->isInteger()) {
+ if (ArgNo == 0)
+ CheckFailed("Intrinsic result type is not "
+ "an integer type.", F);
+ else
+ CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is not "
+ "an integer type.", F);
break;
}
-
- if ((unsigned)va_arg(VA, int) != PTy->getNumElements()) {
+ unsigned GotBits = cast<IntegerType>(EltTy)->getBitWidth();
+ Suffix += ".";
+ if (EltTy != Ty)
+ Suffix += "v" + utostr(NumElts);
+ Suffix += "i" + utostr(GotBits);;
+ // Check some constraints on various intrinsics.
+ switch (ID) {
+ default: break; // Not everything needs to be checked.
+ case Intrinsic::bswap:
+ if (GotBits < 16 || GotBits % 16 != 0)
+ CheckFailed("Intrinsic requires even byte width argument", F);
+ break;
+ }
+ } else if (VT == MVT::fAny) {
+ if (!EltTy->isFloatingPoint()) {
+ if (ArgNo == 0)
+ CheckFailed("Intrinsic result type is not "
+ "a floating-point type.", F);
+ else
+ CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is not "
+ "a floating-point type.", F);
+ break;
+ }
+ Suffix += ".";
+ if (EltTy != Ty)
+ Suffix += "v" + utostr(NumElts);
+ Suffix += MVT::getValueTypeString(MVT::getValueType(EltTy));
+ } else if (VT == MVT::iPTR) {
+ if (!isa<PointerType>(Ty)) {
+ if (ArgNo == 0)
+ CheckFailed("Intrinsic result type is not a "
+ "pointer and a pointer is required.", F);
+ else
+ CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is not a "
+ "pointer and a pointer is required.", F);
+ break;
+ }
+ } else if (MVT::isVector(VT)) {
+ // If this is a vector argument, verify the number and type of elements.
+ if (MVT::getVectorElementType(VT) != MVT::getValueType(EltTy)) {
+ CheckFailed("Intrinsic prototype has incorrect vector element type!",
+ F);
+ break;
+ }
+ if (MVT::getVectorNumElements(VT) != NumElts) {
CheckFailed("Intrinsic prototype has incorrect number of "
"vector elements!",F);
break;
}
+ } else if (MVT::getTypeForValueType(VT) != EltTy) {
+ if (ArgNo == 0)
+ CheckFailed("Intrinsic prototype has incorrect result type!", F);
+ else
+ CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is wrong!",F);
+ break;
+ } else if (EltTy != Ty) {
+ if (ArgNo == 0)
+ CheckFailed("Intrinsic result type is vector "
+ "and a scalar is required.", F);
+ else
+ CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is vector "
+ "and a scalar is required.", F);
}
}
va_end(VA);
+
+ // If we computed a Suffix then the intrinsic is overloaded and we need to
+ // make sure that the name of the function is correct. We add the suffix to
+ // the name of the intrinsic and compare against the given function name. If
+ // they are not the same, the function name is invalid. This ensures that
+ // overloading of intrinsics uses a sane and consistent naming convention.
+ if (!Suffix.empty()) {
+ std::string Name(Intrinsic::getName(ID));
+ if (Name + Suffix != F->getName())
+ CheckFailed("Overloaded intrinsic has incorrect suffix: '" +
+ F->getName().substr(Name.length()) + "'. It should be '" +
+ Suffix + "'", F);
+ }
}
// verifyFunction - Create
bool llvm::verifyFunction(const Function &f, VerifierFailureAction action) {
Function &F = const_cast<Function&>(f);
- assert(!F.isExternal() && "Cannot verify external functions");
+ assert(!F.isDeclaration() && "Cannot verify external functions");
FunctionPassManager FPM(new ExistingModuleProvider(F.getParent()));
Verifier *V = new Verifier(action);