#include "llvm/Module.h"
#include "llvm/ModuleProvider.h"
#include "llvm/DerivedTypes.h"
+#include "llvm/InlineAsm.h"
#include "llvm/Instructions.h"
#include "llvm/Intrinsics.h"
#include "llvm/PassManager.h"
#include "llvm/Analysis/Dominators.h"
#include "llvm/Support/CFG.h"
#include "llvm/Support/InstVisitor.h"
+#include "llvm/Support/Streams.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 Verifier : public FunctionPass, InstVisitor<Verifier> {
+ struct VISIBILITY_HIDDEN
+ Verifier : public FunctionPass, InstVisitor<Verifier> {
bool Broken; // Is this module found to be broken?
bool RealPass; // Are we not being run by a PassManager?
VerifierFailureAction action;
// returning back to the pass manager, or else the pass manager may try to
// run other passes on the broken module.
if (RealPass)
- abortIfBroken();
+ return abortIfBroken();
return false;
}
bool runOnFunction(Function &F) {
// Get dominator information if we are being run by PassManager
if (RealPass) EF = &getAnalysis<ETForest>();
+
visit(F);
InstsInThisBlock.clear();
// returning back to the pass manager, or else the pass manager may try to
// run other passes on the broken module.
if (RealPass)
- abortIfBroken();
+ return abortIfBroken();
return false;
}
visitGlobalVariable(*I);
// If the module is broken, abort at this time.
- abortIfBroken();
- return false;
+ return abortIfBroken();
}
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
/// abortIfBroken - If the module is broken and we are supposed to abort on
/// this condition, do so.
///
- void abortIfBroken() {
- if (Broken)
- {
+ bool abortIfBroken() {
+ if (Broken) {
msgs << "Broken module found, ";
- switch (action)
- {
+ switch (action) {
case AbortProcessAction:
msgs << "compilation aborted!\n";
- std::cerr << msgs.str();
+ cerr << msgs.str();
abort();
- case ThrowExceptionAction:
- msgs << "verification terminated.\n";
- throw msgs.str();
case PrintMessageAction:
msgs << "verification continues.\n";
- std::cerr << msgs.str();
- break;
+ cerr << msgs.str();
+ return false;
case ReturnStatusAction:
- break;
+ msgs << "compilation terminated.\n";
+ return Broken;
}
}
+ return false;
}
void visitGlobalVariable(GlobalVariable &GV);
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 visitICmpInst(ICmpInst &IC);
+ void visitFCmpInst(FCmpInst &FC);
void visitShiftInst(ShiftInst &SI);
void visitExtractElementInst(ExtractElementInst &EI);
void visitInsertElementInst(InsertElementInst &EI);
+ void visitShuffleVectorInst(ShuffleVectorInst &EI);
void visitVAArgInst(VAArgInst &VAA) { visitInstruction(VAA); }
void visitCallInst(CallInst &CI);
void visitGetElementPtrInst(GetElementPtrInst &GEP);
void visitUserOp2(Instruction &I) { visitUserOp1(I); }
void visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI);
+ void VerifyIntrinsicPrototype(Function *F, ...);
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";
}
}
}
};
- RegisterOpt<Verifier> X("verify", "Module Verifier");
+ RegisterPass<Verifier> X("verify", "Module Verifier");
} // End anonymous namespace
void Verifier::visitGlobalValue(GlobalValue &GV) {
- Assert1(!GV.isExternal() || GV.hasExternalLinkage(),
- "Global is external, but doesn't have external linkage!", &GV);
+ Assert1(!GV.isExternal() ||
+ GV.hasExternalLinkage() ||
+ GV.hasDLLImportLinkage() ||
+ GV.hasExternalWeakLinkage(),
+ "Global is external, but doesn't have external or dllimport or weak linkage!",
+ &GV);
+
+ Assert1(!GV.hasDLLImportLinkage() || GV.isExternal(),
+ "Global is marked as dllimport, but not external", &GV);
+
Assert1(!GV.hasAppendingLinkage() || isa<GlobalVariable>(GV),
"Only global variables can have appending linkage!", &GV);
// visitFunction - Verify that a function is ok.
//
void Verifier::visitFunction(Function &F) {
- Assert1(!F.isVarArg() || F.getCallingConv() == CallingConv::C,
- "Varargs functions must have C calling conventions!", &F);
-
// Check function arguments.
const FunctionType *FT = F.getFunctionType();
unsigned NumArgs = F.getArgumentList().size();
F.getReturnType() == Type::VoidTy,
"Functions cannot return aggregate values!", &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:
+ Assert1(!F.isVarArg(),
+ "Varargs functions must have C calling conventions!", &F);
+ break;
+ }
+
// 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));
}
if (!F.isExternal()) {
+ // 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);
+
verifySymbolTable(F.getSymbolTable());
// Check the entry node
/// a pass, if any exist, it's an error.
///
void Verifier::visitUserOp1(Instruction &I) {
- Assert1(0, "User-defined operators should not live outside of a pass!",
- &I);
+ 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->isIntegral(), "Trunc only operates on integer", &I);
+ Assert1(DestTy->isIntegral(),"Trunc only produces integral", &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
+ unsigned SrcBitSize = SrcTy->getPrimitiveSizeInBits();
+ unsigned DestBitSize = DestTy->getPrimitiveSizeInBits();
+
+ Assert1(SrcTy->isIntegral(),"ZExt only operates on integral", &I);
+ Assert1(DestTy->isInteger(),"ZExt only produces an integer", &I);
+ 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->isIntegral(),"SExt only operates on integral", &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();
+
+ Assert1(SrcTy->isIntegral(),"UInt2FP source must be integral", &I);
+ Assert1(DestTy->isFloatingPoint(),"UInt2FP result must be FP", &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();
+
+ Assert1(SrcTy->isIntegral(),"SInt2FP source must be integral", &I);
+ Assert1(DestTy->isFloatingPoint(),"SInt2FP result must be FP", &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();
+
+ Assert1(SrcTy->isFloatingPoint(),"FP2UInt source must be FP", &I);
+ Assert1(DestTy->isIntegral(),"FP2UInt result must be integral", &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();
+
+ Assert1(SrcTy->isFloatingPoint(),"FPToSI source must be FP", &I);
+ Assert1(DestTy->isIntegral(),"FP2ToI result must be integral", &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->isIntegral(), "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->isIntegral(), "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.
visitInstruction(B);
}
+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->isIntegral() || Op0Ty->getTypeID() == Type::PointerTyID ||
+ (isa<PackedType>(Op0Ty) &&
+ cast<PackedType>(Op0Ty)->getElementType()->isIntegral()),
+ "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() || (isa<PackedType>(Op0Ty) &&
+ cast<PackedType>(Op0Ty)->getElementType()->isFloatingPoint()),
+ "Invalid operand types for FCmp instruction", &FC);
+ visitInstruction(FC);
+}
+
void Verifier::visitShiftInst(ShiftInst &SI) {
Assert1(SI.getType()->isInteger(),
"Shift must return an integer result!", &SI);
}
void Verifier::visitExtractElementInst(ExtractElementInst &EI) {
- Assert1(isa<PackedType>(EI.getOperand(0)->getType()),
- "First operand to extractelement must be packed type!", &EI);
- Assert1(EI.getOperand(1)->getType() == Type::UIntTy,
- "Second operand to extractelement must be uint type!", &EI);
- Assert1(EI.getType() ==
- cast<PackedType>(EI.getOperand(0)->getType())->getElementType(),
- "Extractelement return type must match "
- "first operand element type!", &EI);
+ Assert1(ExtractElementInst::isValidOperands(EI.getOperand(0),
+ EI.getOperand(1)),
+ "Invalid extractelement operands!", &EI);
visitInstruction(EI);
}
void Verifier::visitInsertElementInst(InsertElementInst &IE) {
- Assert1(isa<PackedType>(IE.getOperand(0)->getType()),
- "First operand to insertelement must be packed type!", &IE);
- Assert1(IE.getOperand(1)->getType() ==
- cast<PackedType>(IE.getOperand(0)->getType())->getElementType(),
- "Second operand to insertelement must match "
- "first operand element type!", &IE);
- Assert1(IE.getOperand(2)->getType() == Type::UIntTy,
- "Third operand to insertelement must be uint type!", &IE);
+ Assert1(InsertElementInst::isValidOperands(IE.getOperand(0),
+ IE.getOperand(1),
+ IE.getOperand(2)),
+ "Invalid insertelement operands!", &IE);
visitInstruction(IE);
}
+void Verifier::visitShuffleVectorInst(ShuffleVectorInst &SV) {
+ Assert1(ShuffleVectorInst::isValidOperands(SV.getOperand(0), SV.getOperand(1),
+ SV.getOperand(2)),
+ "Invalid shufflevector operands!", &SV);
+ Assert1(SV.getType() == SV.getOperand(0)->getType(),
+ "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))) {
+ for (unsigned i = 0, e = MV->getNumOperands(); i != e; ++i) {
+ Assert1(isa<ConstantInt>(MV->getOperand(i)) ||
+ isa<UndefValue>(MV->getOperand(i)),
+ "Invalid shufflevector shuffle mask!", &SV);
+ }
+ } else {
+ Assert1(isa<UndefValue>(SV.getOperand(2)) ||
+ isa<ConstantAggregateZero>(SV.getOperand(2)),
+ "Invalid shufflevector shuffle mask!", &SV);
+ }
+
+ visitInstruction(SV);
+}
+
void Verifier::visitGetElementPtrInst(GetElementPtrInst &GEP) {
const Type *ElTy =
GetElementPtrInst::getIndexedType(GEP.getOperand(0)->getType(),
}
for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) {
- // Check to make sure that the "address of" an intrinsic function is never
- // taken.
Assert1(I.getOperand(i) != 0, "Instruction has null operand!", &I);
+
+ // Check to make sure that only first-class-values are operands to
+ // instructions.
+ Assert1(I.getOperand(i)->getType()->isFirstClassType(),
+ "Instruction operands must be first-class values!", &I);
+
if (Function *F = dyn_cast<Function>(I.getOperand(i))) {
+ // Check to make sure that the "address of" an intrinsic function is never
+ // taken.
Assert1(!F->isIntrinsic() || (i == 0 && isa<CallInst>(I)),
"Cannot take the address of an intrinsic!", &I);
} else if (BasicBlock *OpBB = dyn_cast<BasicBlock>(I.getOperand(i))) {
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) {
+
+ // 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() &&
+ EF->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) {
+ for (pred_iterator PI = pred_begin(OpBlock),
+ E = pred_end(OpBlock); PI != E; ++PI) {
+ if (*PI != II->getParent() && !EF->dominates(OpBlock, *PI)) {
+ Bad = true;
+ break;
+ }
+ }
+ }
+ Assert1(!Bad,
+ "Invoke value defined on critical edge but not dead!", &I);
+ }
+ } 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(), PredBB),
"Instruction does not dominate all uses!", Op, &I);
}
+ } else if (isa<InlineAsm>(I.getOperand(i))) {
+ Assert1(i == 0 && isa<CallInst>(I),
+ "Cannot take the address of an inline asm!", &I);
}
}
InstsInThisBlock.insert(&I);
///
void Verifier::visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI) {
Function *IF = CI.getCalledFunction();
- const FunctionType *FT = IF->getFunctionType();
Assert1(IF->isExternal(), "Intrinsic functions should never be defined!", IF);
- unsigned NumArgs = 0;
-
- // FIXME: this should check the return type of each intrinsic as well, also
- // arguments!
- switch (ID) {
- case Intrinsic::vastart:
- Assert1(CI.getParent()->getParent()->getFunctionType()->isVarArg(),
- "llvm.va_start intrinsic may only occur in function with variable"
- " args!", &CI);
- NumArgs = 1;
- break;
- case Intrinsic::vaend: NumArgs = 1; break;
- case Intrinsic::vacopy: NumArgs = 2; break;
-
- case Intrinsic::returnaddress:
- case Intrinsic::frameaddress:
- Assert1(isa<PointerType>(FT->getReturnType()),
- "llvm.(frame|return)address must return pointers", IF);
- Assert1(FT->getNumParams() == 1 && isa<ConstantInt>(CI.getOperand(1)),
- "llvm.(frame|return)address require a single constant integer argument",
- &CI);
- NumArgs = 1;
- break;
-
- // Verify that read and write port have integral parameters of the correct
- // signed-ness.
- case Intrinsic::writeport:
- Assert1(FT->getNumParams() == 2,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getParamType(0)->isIntegral(),
- "First argument not unsigned int!", IF);
- Assert1(FT->getParamType(1)->isUnsigned(),
- "First argument not unsigned int!", IF);
- NumArgs = 2;
- break;
-
- case Intrinsic::writeio:
- Assert1(FT->getNumParams() == 2,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getParamType(0)->isFirstClassType(),
- "First argument not a first class type!", IF);
- Assert1(isa<PointerType>(FT->getParamType(1)),
- "Second argument not a pointer!", IF);
- NumArgs = 2;
- break;
-
- case Intrinsic::readport:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType()->isFirstClassType(),
- "Return type is not a first class type!", IF);
- Assert1(FT->getParamType(0)->isUnsigned(),
- "First argument not unsigned int!", IF);
- NumArgs = 1;
- break;
-
- case Intrinsic::readio: {
- const PointerType *ParamType = dyn_cast<PointerType>(FT->getParamType(0));
- const Type *ReturnType = FT->getReturnType();
-
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(ParamType, "First argument not a pointer!", IF);
- Assert1(ParamType->getElementType() == ReturnType,
- "Pointer type doesn't match return type!", IF);
- NumArgs = 1;
- break;
- }
-
- case Intrinsic::isunordered_f32:
- Assert1(FT->getNumParams() == 2,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == Type::BoolTy,
- "Return type is not bool!", IF);
- Assert1(FT->getParamType(0) == FT->getParamType(1),
- "Arguments must be of the same type!", IF);
- Assert1(FT->getParamType(0) == Type::FloatTy,
- "Arguments must be a 32-bit floating point type!", IF);
- NumArgs = 2;
- break;
-
- case Intrinsic::isunordered_f64:
- Assert1(FT->getNumParams() == 2,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == Type::BoolTy,
- "Return type is not bool!", IF);
- Assert1(FT->getParamType(0) == FT->getParamType(1),
- "Arguments must be of the same type!", IF);
- Assert1(FT->getParamType(0) == Type::DoubleTy,
- "Argument is not a 64-bit floating point type!", IF);
- NumArgs = 2;
- break;
+
+#define GET_INTRINSIC_VERIFIER
+#include "llvm/Intrinsics.gen"
+#undef GET_INTRINSIC_VERIFIER
+}
- case Intrinsic::readcyclecounter:
- Assert1(FT->getNumParams() == 0,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == Type::ULongTy,
- "Return type is not ulong!", IF);
- NumArgs = 0;
- 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, ...) {
+ va_list VA;
+ va_start(VA, F);
+
+ const FunctionType *FTy = F->getFunctionType();
+
+ // Note that "arg#0" is the return type.
+ for (unsigned ArgNo = 0; 1; ++ArgNo) {
+ int TypeID = va_arg(VA, int);
+
+ if (TypeID == -1) {
+ if (ArgNo != FTy->getNumParams()+1)
+ CheckFailed("Intrinsic prototype has too many arguments!", F);
+ break;
+ }
- case Intrinsic::bswap_i16:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getReturnType() == Type::UShortTy,
- "Return type is not ushort!", IF);
- NumArgs = 1;
- break;
-
- case Intrinsic::bswap_i32:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getReturnType() == Type::UIntTy,
- "Return type is not uint!", IF);
- NumArgs = 1;
- break;
-
- case Intrinsic::bswap_i64:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getReturnType() == Type::ULongTy,
- "Return type is not ulong!", IF);
- NumArgs = 1;
- break;
+ if (ArgNo == FTy->getNumParams()+1) {
+ CheckFailed("Intrinsic prototype has too few arguments!", F);
+ break;
+ }
- case Intrinsic::ctpop_i8:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getParamType(0) == Type::UByteTy
- || FT->getParamType(0) == Type::SByteTy,
- "Argument must be a byte type!", IF);
- NumArgs = 1;
- break;
-
- case Intrinsic::ctpop_i16:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getParamType(0) == Type::UShortTy
- || FT->getParamType(0) == Type::ShortTy,
- "Argument must be a short type!", IF);
- NumArgs = 1;
- break;
-
- case Intrinsic::ctpop_i32:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getParamType(0) == Type::UIntTy
- || FT->getParamType(0) == Type::IntTy,
- "Argument must be an int type!", IF);
- NumArgs = 1;
- break;
-
- case Intrinsic::ctpop_i64:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getParamType(0) == Type::ULongTy
- || FT->getParamType(0) == Type::LongTy,
- "Argument must be a long type!", IF);
- NumArgs = 1;
- break;
-
- case Intrinsic::ctlz_i8:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getParamType(0) == Type::UByteTy
- || FT->getParamType(0) == Type::SByteTy,
- "Argument must be a byte type!", IF);
- NumArgs = 1;
- break;
-
- case Intrinsic::ctlz_i16:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getParamType(0) == Type::UShortTy
- || FT->getParamType(0) == Type::ShortTy,
- "Argument must be a short type!", IF);
- NumArgs = 1;
- break;
- case Intrinsic::ctlz_i32:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getParamType(0) == Type::UIntTy
- || FT->getParamType(0) == Type::IntTy,
- "Argument must be an int type!", IF);
- NumArgs = 1;
- break;
- case Intrinsic::ctlz_i64:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getParamType(0) == Type::ULongTy
- || FT->getParamType(0) == Type::LongTy,
- "Argument must be a long type!", IF);
- NumArgs = 1;
- break;
- case Intrinsic::cttz_i8:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getParamType(0) == Type::UByteTy
- || FT->getParamType(0) == Type::SByteTy,
- "Argument must be a byte type!", IF);
- NumArgs = 1;
- break;
- case Intrinsic::cttz_i16:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getParamType(0) == Type::UShortTy
- || FT->getParamType(0) == Type::ShortTy,
- "Argument must be a short type!", IF);
- NumArgs = 1;
- break;
- case Intrinsic::cttz_i32:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getParamType(0) == Type::UIntTy
- || FT->getParamType(0) == Type::IntTy,
- "Argument must be an int type!", IF);
- NumArgs = 1;
- break;
- case Intrinsic::cttz_i64:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type does not match source type", IF);
- Assert1(FT->getParamType(0) == Type::ULongTy
- || FT->getParamType(0) == Type::LongTy,
- "Argument must be a long type!", IF);
- NumArgs = 1;
- break;
-
- case Intrinsic::sqrt_f32:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getParamType(0) == Type::FloatTy,
- "Argument is not a 32-bit floating point type!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type is not the same as argument type!", IF);
- NumArgs = 1;
- break;
-
- case Intrinsic::sqrt_f64:
- Assert1(FT->getNumParams() == 1,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(FT->getParamType(0) == Type::DoubleTy,
- "Argument is not a 64-bit floating point type!", IF);
- Assert1(FT->getReturnType() == FT->getParamType(0),
- "Return type is not the same as argument type!", IF);
- NumArgs = 1;
- break;
+ const Type *Ty;
+ 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;
+ }
- case Intrinsic::setjmp: NumArgs = 1; break;
- case Intrinsic::longjmp: NumArgs = 2; break;
- case Intrinsic::sigsetjmp: NumArgs = 2; break;
- case Intrinsic::siglongjmp: NumArgs = 2; break;
-
- case Intrinsic::gcroot:
- Assert1(FT->getNumParams() == 2,
- "Illegal # arguments for intrinsic function!", IF);
- Assert1(isa<Constant>(CI.getOperand(2)),
- "Second argument to llvm.gcroot must be a constant!", &CI);
- NumArgs = 2;
- break;
- case Intrinsic::gcread: NumArgs = 2; break;
- case Intrinsic::gcwrite: NumArgs = 3; break;
-
- case Intrinsic::dbg_stoppoint: NumArgs = 4; break;
- case Intrinsic::dbg_region_start:NumArgs = 1; break;
- case Intrinsic::dbg_region_end: NumArgs = 1; break;
- case Intrinsic::dbg_func_start: NumArgs = 1; break;
- case Intrinsic::dbg_declare: NumArgs = 1; break;
-
- case Intrinsic::memcpy: NumArgs = 4; break;
- case Intrinsic::memmove: NumArgs = 4; break;
- case Intrinsic::memset: NumArgs = 4; break;
-
- case Intrinsic::stacksave:
- NumArgs = 0;
- Assert1(CI.getType() == PointerType::get(Type::SByteTy),
- "llvm.stacksave must return an sbyte*", &CI);
- break;
- case Intrinsic::stackrestore:
- NumArgs = 1;
- Assert1(CI.getOperand(1)->getType() == PointerType::get(Type::SByteTy),
- "llvm.stackrestore must take an sbyte*", &CI);
- Assert1(CI.getType() == Type::VoidTy,
- "llvm.stackrestore return void", &CI);
- break;
- case Intrinsic::prefetch: NumArgs = 3; break;
- case Intrinsic::pcmarker:
- NumArgs = 1;
- Assert1(isa<Constant>(CI.getOperand(1)),
- "First argument to llvm.pcmarker must be a constant!", &CI);
- 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);
+ break;
+ }
- case Intrinsic::not_intrinsic:
- assert(0 && "Invalid intrinsic!"); NumArgs = 0; break;
+ if ((unsigned)va_arg(VA, int) != PTy->getNumElements()) {
+ CheckFailed("Intrinsic prototype has incorrect number of "
+ "vector elements!",F);
+ break;
+ }
+ }
}
- Assert1(FT->getNumParams() == NumArgs || (FT->getNumParams() < NumArgs &&
- FT->isVarArg()),
- "Illegal # arguments for intrinsic function!", IF);
+ va_end(VA);
}
/// verifyModule - Check a module for errors, printing messages on stderr.
/// Return true if the module is corrupt.
///
-bool llvm::verifyModule(const Module &M, VerifierFailureAction action) {
+bool llvm::verifyModule(const Module &M, VerifierFailureAction action,
+ std::string *ErrorInfo) {
PassManager PM;
Verifier *V = new Verifier(action);
PM.add(V);
PM.run((Module&)M);
+
+ if (ErrorInfo && V->Broken)
+ *ErrorInfo = V->msgs.str();
return V->Broken;
}
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