================ @@ -0,0 +1,453 @@ +//===----------------------------------------------------------------------===// +// +// 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 Builtin calls as CIR or a function call to be +// later resolved. +// +//===----------------------------------------------------------------------===// + +#include "CIRGenCall.h" +#include "CIRGenFunction.h" +#include "CIRGenModule.h" +#include "CIRGenValue.h" +#include "clang/AST/Expr.h" +#include "clang/CIR/Dialect/IR/CIRAttrs.h" +#include "clang/CIR/Dialect/IR/CIRTypes.h" +#include "clang/CIR/MissingFeatures.h" +#include "llvm/IR/Intrinsics.h" + +#include "clang/AST/GlobalDecl.h" +#include "clang/Basic/Builtins.h" + +#include "mlir/IR/BuiltinAttributes.h" +#include "mlir/IR/Value.h" +#include "mlir/Support/LLVM.h" +#include "clang/CIR/Dialect/IR/CIRDialect.h" +#include "llvm/Support/ErrorHandling.h" + +using namespace clang; +using namespace clang::CIRGen; +using namespace cir; +using namespace llvm; + +static RValue emitLibraryCall(CIRGenFunction &cgf, const FunctionDecl *fd, + const CallExpr *e, mlir::Operation *calleeValue) { + CIRGenCallee callee = CIRGenCallee::forDirect(calleeValue, GlobalDecl(fd)); + return cgf.emitCall(e->getCallee()->getType(), callee, e, ReturnValueSlot()); +} + +static mlir::Type +decodeFixedType(CIRGenFunction &cgf, + ArrayRef<llvm::Intrinsic::IITDescriptor> &infos) { + using namespace llvm::Intrinsic; + + auto *context = &cgf.getMLIRContext(); + IITDescriptor descriptor = infos.front(); + infos = infos.slice(1); + + switch (descriptor.Kind) { + case IITDescriptor::Void: + return VoidType::get(context); + case IITDescriptor::Integer: + return IntType::get(context, descriptor.Integer_Width, /*isSigned=*/true); + case IITDescriptor::Float: + return SingleType::get(context); + case IITDescriptor::Double: + return DoubleType::get(context); + default: + cgf.cgm.errorNYI("intrinsic return types"); + return VoidType::get(context); + } +} + +// llvm::Intrinsics accepts only LLVMContext. We need to reimplement it here. +static cir::FuncType getIntrinsicType(CIRGenFunction &cgf, + llvm::Intrinsic::ID id) { + using namespace llvm::Intrinsic; + + SmallVector<IITDescriptor, 8> table; + getIntrinsicInfoTableEntries(id, table); + + ArrayRef<IITDescriptor> tableRef = table; ---------------- andykaylor wrote:
It wasn't clear to my why we were getting a local `ArrayRef` rather than just using the `table` variable. I _think_ the reason is that the calls to `decodeFixedType` are taking the first element out of the set we're working with without actually changing the original vector. Can you add a comment explaining that (or whatever else is going on if I'm wrong)? https://github.com/llvm/llvm-project/pull/142981 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
