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[Clang] Prevent null dereferences #115502

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Merged
merged 2 commits into from
Nov 21, 2024
Merged

[Clang] Prevent null dereferences #115502

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[Clang] Prevent null dereference
smanna12 Nov 8, 2024
4e81e79
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smanna12 Nov 21, 2024
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4 changes: 2 additions & 2 deletions clang/lib/CodeGen/CGBuiltin.cpp
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Expand Up @@ -18862,8 +18862,8 @@ Value *CodeGenFunction::EmitHLSLBuiltinExpr(unsigned BuiltinID,
"cross operands must have a float representation");
// make sure each vector has exactly 3 elements
assert(
E->getArg(0)->getType()->getAs<VectorType>()->getNumElements() == 3 &&
E->getArg(1)->getType()->getAs<VectorType>()->getNumElements() == 3 &&
E->getArg(0)->getType()->castAs<VectorType>()->getNumElements() == 3 &&
E->getArg(1)->getType()->castAs<VectorType>()->getNumElements() == 3 &&
"input vectors must have 3 elements each");
return Builder.CreateIntrinsic(
/*ReturnType=*/Op0->getType(), CGM.getHLSLRuntime().getCrossIntrinsic(),
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2 changes: 1 addition & 1 deletion clang/lib/CodeGen/CGExpr.cpp
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Expand Up @@ -4374,7 +4374,7 @@ LValue CodeGenFunction::EmitArraySubscriptExpr(const ArraySubscriptExpr *E,
ME &&
ME->isFlexibleArrayMemberLike(getContext(), StrictFlexArraysLevel) &&
ME->getMemberDecl()->getType()->isCountAttributedType()) {
const FieldDecl *FAMDecl = dyn_cast<FieldDecl>(ME->getMemberDecl());
const FieldDecl *FAMDecl = cast<FieldDecl>(ME->getMemberDecl());
if (const FieldDecl *CountFD = FAMDecl->findCountedByField()) {
if (std::optional<int64_t> Diff =
getOffsetDifferenceInBits(*this, CountFD, FAMDecl)) {
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2 changes: 1 addition & 1 deletion clang/lib/Sema/AnalysisBasedWarnings.cpp
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Expand Up @@ -2265,7 +2265,7 @@ class UnsafeBufferUsageReporter : public UnsafeBufferUsageHandler {
} else if (isa<MemberExpr>(Operation)) {
// note_unsafe_buffer_operation doesn't have this mode yet.
assert(!IsRelatedToDecl && "Not implemented yet!");
auto ME = dyn_cast<MemberExpr>(Operation);
auto ME = cast<MemberExpr>(Operation);
D = ME->getMemberDecl();
MsgParam = 5;
} else if (const auto *ECE = dyn_cast<ExplicitCastExpr>(Operation)) {
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2 changes: 1 addition & 1 deletion clang/lib/Sema/SemaExprMember.cpp
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Expand Up @@ -379,7 +379,7 @@ CheckExtVectorComponent(Sema &S, QualType baseType, ExprValueKind &VK,
//
// FIXME: This logic can be greatly simplified by splitting it along
// halving/not halving and reworking the component checking.
const ExtVectorType *vecType = baseType->getAs<ExtVectorType>();
const ExtVectorType *vecType = baseType->castAs<ExtVectorType>();

// The vector accessor can't exceed the number of elements.
const char *compStr = CompName->getNameStart();
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