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CGBuiltin - Use castAs<> instead of getAs<> to avoid dereference of nullptr 

The pointer is always dereferenced immediately below, so assert the cast is correct instead of returning nullptr
This commit is contained in:
Simon Pilgrim 2022-01-12 15:18:51 +00:00
parent dcc20143e1
commit 497a4b26c4
1 changed files with 1 additions and 1 deletions
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2
clang/lib/CodeGen/CGBuiltin.cpp
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@ -3223,7 +3223,7 @@ RValue CodeGenFunction::EmitBuiltinExpr(const GlobalDecl GD, unsigned BuiltinID,
*this, E, llvm::Intrinsic::vector_reduce_xor, "rdx.xor")); *this, E, llvm::Intrinsic::vector_reduce_xor, "rdx.xor"));
case Builtin::BI__builtin_matrix_transpose: { case Builtin::BI__builtin_matrix_transpose: {
const auto *MatrixTy = E->getArg(0)->getType()->getAs<ConstantMatrixType>(); auto *MatrixTy = E->getArg(0)->getType()->castAs<ConstantMatrixType>();
Value *MatValue = EmitScalarExpr(E->getArg(0)); Value *MatValue = EmitScalarExpr(E->getArg(0));
MatrixBuilder<CGBuilderTy> MB(Builder); MatrixBuilder<CGBuilderTy> MB(Builder);
Value *Result = MB.CreateMatrixTranspose(MatValue, MatrixTy->getNumRows(), Value *Result = MB.CreateMatrixTranspose(MatValue, MatrixTy->getNumRows(),