================ @@ -0,0 +1,128 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This contains code to emit Expr nodes as CIR code. +// +//===----------------------------------------------------------------------===// + +#include "Address.h" +#include "CIRGenFunction.h" +#include "CIRGenValue.h" +#include "clang/AST/Attr.h" +#include "clang/AST/CharUnits.h" +#include "clang/AST/Decl.h" +#include "clang/AST/Expr.h" +#include "clang/CIR/Dialect/IR/CIRDialect.h" +#include "clang/CIR/MissingFeatures.h" + +using namespace clang; +using namespace clang::CIRGen; +using namespace cir; + +mlir::Value CIRGenFunction::emitLoadOfScalar(LValue lvalue, + SourceLocation loc) { + assert(!cir::MissingFeatures::opLoadThreadLocal()); + assert(!cir::MissingFeatures::opLoadEmitScalarRangeCheck()); + assert(!cir::MissingFeatures::opLoadBooleanRepresentation()); + + Address addr = lvalue.getAddress(); + mlir::Type eltTy = addr.getElementType(); + + auto ptr = addr.getPointer(); + if (mlir::isa<cir::VoidType>(eltTy)) + cgm.errorNYI(loc, "emitLoadOfScalar: void type"); + + auto loadOp = builder.CIRBaseBuilderTy::createLoad(getLoc(loc), ptr, + false /*isVolatile*/); + + return loadOp; +} + +/// Given an expression that represents a value lvalue, this +/// method emits the address of the lvalue, then loads the result as an rvalue, +/// returning the rvalue. +RValue CIRGenFunction::emitLoadOfLValue(LValue lv, SourceLocation loc) { + assert(!lv.getType()->isFunctionType()); + assert(!(lv.getType()->isConstantMatrixType()) && "not implemented"); + + if (lv.isSimple()) + return RValue::get(emitLoadOfScalar(lv, loc)); + + cgm.errorNYI(loc, "emitLoadOfLValue"); ---------------- erichkeane wrote:
We did, we're only doing unreachable in cases where its the 'final' thing more or less. And IIRC, Clang believes that `assert(false` is for things someone MIGHT reach, and `unreachable` is for things that we expect will NEVER be reached. https://github.com/llvm/llvm-project/pull/128792 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
