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Add a new method to verify intrinsic function prototypes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27282 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-03-31 04:46:47 +00:00
parent c4d9b240b1
commit 536a9d5ea5
1 changed files with 60 additions and 2 deletions
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62
lib/VMCore/Verifier.cpp
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@ -55,6 +55,7 @@
#include "llvm/Analysis/Dominators.h"
#include "llvm/Support/CFG.h"
#include "llvm/Support/InstVisitor.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/STLExtras.h"
#include <algorithm>
#include <iostream>
@ -196,6 +197,7 @@ namespace { // Anonymous namespace for class
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;
@ -436,8 +438,7 @@ void Verifier::visitSelectInst(SelectInst &SI) {
/// 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);
}
/// visitPHINode - Ensure that a PHI node is well formed.
@ -684,6 +685,63 @@ void Verifier::visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI) {
#undef GET_INTRINSIC_VERIFIER
}
/// 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;
}
if (ArgNo == FTy->getNumParams()+1) {
CheckFailed("Intrinsic prototype has too few arguments!", F);
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;
}
// 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;
}
if ((unsigned)va_arg(VA, int) != PTy->getNumElements()) {
CheckFailed("Intrinsic prototype has incorrect number of "
"vector elements!",F);
break;
}
}
}
va_end(VA);
}
//===----------------------------------------------------------------------===//
// Implement the public interfaces to this file...