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Refactor the code that does the type checking for intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59228 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
parent
0d9eb9b491
commit
a6ce05f82a
@ -266,6 +266,8 @@ namespace {
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void visitInsertValueInst(InsertValueInst &IVI);
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void VerifyCallSite(CallSite CS);
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bool PerformTypeCheck(Intrinsic::ID ID, Function *F, const Type *Ty,
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int VT, unsigned ArgNo, std::string &Suffix);
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void VerifyIntrinsicPrototype(Intrinsic::ID ID, Function *F,
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unsigned Count, ...);
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void VerifyAttrs(Attributes Attrs, const Type *Ty,
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@ -1375,6 +1377,133 @@ void Verifier::visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI) {
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}
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}
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bool Verifier::PerformTypeCheck(Intrinsic::ID ID, Function *F, const Type *Ty,
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int VT, unsigned ArgNo, std::string &Suffix) {
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const FunctionType *FTy = F->getFunctionType();
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unsigned NumElts = 0;
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const Type *EltTy = Ty;
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if (const VectorType *VTy = dyn_cast<VectorType>(Ty)) {
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EltTy = VTy->getElementType();
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NumElts = VTy->getNumElements();
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}
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if (VT < 0) {
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int Match = ~VT;
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if (Match == 0) {
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if (Ty != FTy->getReturnType()) {
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo - 1) + " does not "
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"match return type.", F);
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return false;
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}
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} else {
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if (Ty != FTy->getParamType(Match - 1)) {
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo - 1) + " does not "
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"match parameter %" + utostr(Match - 1) + ".", F);
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return false;
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}
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}
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} else if (VT == MVT::iAny) {
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if (!EltTy->isInteger()) {
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if (ArgNo == 0)
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CheckFailed("Intrinsic result type is not an integer type.", F);
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else
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo - 1) + " is not "
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"an integer type.", F);
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return false;
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}
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unsigned GotBits = cast<IntegerType>(EltTy)->getBitWidth();
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Suffix += ".";
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if (EltTy != Ty)
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Suffix += "v" + utostr(NumElts);
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Suffix += "i" + utostr(GotBits);;
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// Check some constraints on various intrinsics.
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switch (ID) {
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default: break; // Not everything needs to be checked.
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case Intrinsic::bswap:
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if (GotBits < 16 || GotBits % 16 != 0)
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CheckFailed("Intrinsic requires even byte width argument", F);
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break;
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}
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} else if (VT == MVT::fAny) {
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if (!EltTy->isFloatingPoint()) {
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if (ArgNo == 0)
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CheckFailed("Intrinsic result type is not a floating-point type.", F);
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else
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo - 1) + " is not "
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"a floating-point type.", F);
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return false;
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}
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Suffix += ".";
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if (EltTy != Ty)
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Suffix += "v" + utostr(NumElts);
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Suffix += MVT::getMVT(EltTy).getMVTString();
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} else if (VT == MVT::iPTR) {
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if (!isa<PointerType>(Ty)) {
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if (ArgNo == 0)
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CheckFailed("Intrinsic result type is not a "
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"pointer and a pointer is required.", F);
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else
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo - 1) + " is not a "
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"pointer and a pointer is required.", F);
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}
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} else if (VT == MVT::iPTRAny) {
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// Outside of TableGen, we don't distinguish iPTRAny (to any address space)
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// and iPTR. In the verifier, we can not distinguish which case we have so
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// allow either case to be legal.
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if (const PointerType* PTyp = dyn_cast<PointerType>(Ty)) {
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Suffix += ".p" + utostr(PTyp->getAddressSpace()) +
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MVT::getMVT(PTyp->getElementType()).getMVTString();
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} else {
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if (ArgNo == 0)
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CheckFailed("Intrinsic result type is not a "
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"pointer and a pointer is required.", F);
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else
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is not a "
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"pointer and a pointer is required.", F);
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return false;
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}
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} else if (MVT((MVT::SimpleValueType)VT).isVector()) {
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MVT VVT = MVT((MVT::SimpleValueType)VT);
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// If this is a vector argument, verify the number and type of elements.
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if (VVT.getVectorElementType() != MVT::getMVT(EltTy)) {
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CheckFailed("Intrinsic prototype has incorrect vector element type!", F);
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return false;
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}
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if (VVT.getVectorNumElements() != NumElts) {
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CheckFailed("Intrinsic prototype has incorrect number of "
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"vector elements!", F);
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return false;
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}
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} else if (MVT((MVT::SimpleValueType)VT).getTypeForMVT() != EltTy) {
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if (ArgNo == 0)
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CheckFailed("Intrinsic prototype has incorrect result type!", F);
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else
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is wrong!",F);
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return false;
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} else if (EltTy != Ty) {
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if (ArgNo == 0)
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CheckFailed("Intrinsic result type is vector "
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"and a scalar is required.", F);
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else
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is vector "
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"and a scalar is required.", F);
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}
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return true;
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}
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/// VerifyIntrinsicPrototype - TableGen emits calls to this function into
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/// Intrinsics.gen. This implements a little state machine that verifies the
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/// prototype of intrinsics.
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@ -1405,123 +1534,11 @@ void Verifier::VerifyIntrinsicPrototype(Intrinsic::ID ID,
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break;
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}
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const Type *Ty;
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if (ArgNo == 0)
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Ty = FTy->getReturnType();
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else
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Ty = FTy->getParamType(ArgNo-1);
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const Type *Ty = (ArgNo == 0) ?
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FTy->getReturnType() : FTy->getParamType(ArgNo - 1);
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unsigned NumElts = 0;
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const Type *EltTy = Ty;
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if (const VectorType *VTy = dyn_cast<VectorType>(Ty)) {
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EltTy = VTy->getElementType();
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NumElts = VTy->getNumElements();
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}
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if (VT < 0) {
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int Match = ~VT;
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if (Match == 0) {
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if (Ty != FTy->getReturnType()) {
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " does not "
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"match return type.", F);
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break;
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}
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} else {
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if (Ty != FTy->getParamType(Match-1)) {
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " does not "
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"match parameter %" + utostr(Match-1) + ".", F);
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break;
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}
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}
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} else if (VT == MVT::iAny) {
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if (!EltTy->isInteger()) {
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if (ArgNo == 0)
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CheckFailed("Intrinsic result type is not "
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"an integer type.", F);
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else
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is not "
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"an integer type.", F);
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break;
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}
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unsigned GotBits = cast<IntegerType>(EltTy)->getBitWidth();
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Suffix += ".";
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if (EltTy != Ty)
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Suffix += "v" + utostr(NumElts);
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Suffix += "i" + utostr(GotBits);;
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// Check some constraints on various intrinsics.
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switch (ID) {
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default: break; // Not everything needs to be checked.
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case Intrinsic::bswap:
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if (GotBits < 16 || GotBits % 16 != 0)
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CheckFailed("Intrinsic requires even byte width argument", F);
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break;
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}
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} else if (VT == MVT::fAny) {
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if (!EltTy->isFloatingPoint()) {
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if (ArgNo == 0)
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CheckFailed("Intrinsic result type is not "
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"a floating-point type.", F);
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else
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is not "
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"a floating-point type.", F);
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break;
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}
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Suffix += ".";
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if (EltTy != Ty)
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Suffix += "v" + utostr(NumElts);
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Suffix += MVT::getMVT(EltTy).getMVTString();
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} else if (VT == MVT::iPTR) {
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if (!isa<PointerType>(Ty)) {
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if (ArgNo == 0)
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CheckFailed("Intrinsic result type is not a "
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"pointer and a pointer is required.", F);
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else
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is not a "
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"pointer and a pointer is required.", F);
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}
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} else if (VT == MVT::iPTRAny) {
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// Outside of TableGen, we don't distinguish iPTRAny (to any address
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// space) and iPTR. In the verifier, we can not distinguish which case
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// we have so allow either case to be legal.
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if (const PointerType* PTyp = dyn_cast<PointerType>(Ty)) {
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Suffix += ".p" + utostr(PTyp->getAddressSpace()) +
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MVT::getMVT(PTyp->getElementType()).getMVTString();
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} else {
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if (ArgNo == 0)
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CheckFailed("Intrinsic result type is not a "
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"pointer and a pointer is required.", F);
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else
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is not a "
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"pointer and a pointer is required.", F);
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break;
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}
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} else if (MVT((MVT::SimpleValueType)VT).isVector()) {
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MVT VVT = MVT((MVT::SimpleValueType)VT);
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// If this is a vector argument, verify the number and type of elements.
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if (VVT.getVectorElementType() != MVT::getMVT(EltTy)) {
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CheckFailed("Intrinsic prototype has incorrect vector element type!",
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F);
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break;
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}
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if (VVT.getVectorNumElements() != NumElts) {
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CheckFailed("Intrinsic prototype has incorrect number of "
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"vector elements!",F);
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break;
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}
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} else if (MVT((MVT::SimpleValueType)VT).getTypeForMVT() != EltTy) {
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if (ArgNo == 0)
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CheckFailed("Intrinsic prototype has incorrect result type!", F);
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else
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is wrong!",F);
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if (!PerformTypeCheck(ID, F, Ty, VT, ArgNo, Suffix))
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break;
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} else if (EltTy != Ty) {
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if (ArgNo == 0)
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CheckFailed("Intrinsic result type is vector "
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"and a scalar is required.", F);
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else
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CheckFailed("Intrinsic parameter #" + utostr(ArgNo-1) + " is vector "
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"and a scalar is required.", F);
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}
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}
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va_end(VA);
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