//===- FunctionAttr.cpp ---------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
/// \file
/// This is a generic pass for adding attributes to functions.
//===----------------------------------------------------------------------===//
#include "flang/Optimizer/Transforms/Passes.h"
#include "mlir/Dialect/LLVMIR/LLVMAttrs.h"
#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
namespace fir {
#define GEN_PASS_DEF_FUNCTIONATTR
#include "flang/Optimizer/Transforms/Passes.h.inc"
} // namespace fir
#define DEBUG_TYPE "func-attr"
namespace {
class FunctionAttrPass : public fir::impl::FunctionAttrBase<FunctionAttrPass> {
public:
FunctionAttrPass(const fir::FunctionAttrOptions &options) {
framePointerKind = options.framePointerKind;
noInfsFPMath = options.noInfsFPMath;
noNaNsFPMath = options.noNaNsFPMath;
approxFuncFPMath = options.approxFuncFPMath;
noSignedZerosFPMath = options.noSignedZerosFPMath;
unsafeFPMath = options.unsafeFPMath;
}
FunctionAttrPass() {}
void runOnOperation() override;
};
} // namespace
void FunctionAttrPass::runOnOperation() {
LLVM_DEBUG(llvm::dbgs() << "=== Begin " DEBUG_TYPE " ===\n");
mlir::func::FuncOp func = getOperation();
LLVM_DEBUG(llvm::dbgs() << "Func-name:" << func.getSymName() << "\n");
mlir::MLIRContext *context = &getContext();
if (framePointerKind != mlir::LLVM::framePointerKind::FramePointerKind::None)
func->setAttr("frame_pointer", mlir::LLVM::FramePointerKindAttr::get(
context, framePointerKind));
auto llvmFuncOpName =
mlir::OperationName(mlir::LLVM::LLVMFuncOp::getOperationName(), context);
if (noInfsFPMath)
func->setAttr(
mlir::LLVM::LLVMFuncOp::getNoInfsFpMathAttrName(llvmFuncOpName),
mlir::BoolAttr::get(context, true));
if (noNaNsFPMath)
func->setAttr(
mlir::LLVM::LLVMFuncOp::getNoNansFpMathAttrName(llvmFuncOpName),
mlir::BoolAttr::get(context, true));
if (approxFuncFPMath)
func->setAttr(
mlir::LLVM::LLVMFuncOp::getApproxFuncFpMathAttrName(llvmFuncOpName),
mlir::BoolAttr::get(context, true));
if (noSignedZerosFPMath)
func->setAttr(
mlir::LLVM::LLVMFuncOp::getNoSignedZerosFpMathAttrName(llvmFuncOpName),
mlir::BoolAttr::get(context, true));
if (unsafeFPMath)
func->setAttr(
mlir::LLVM::LLVMFuncOp::getUnsafeFpMathAttrName(llvmFuncOpName),
mlir::BoolAttr::get(context, true));
LLVM_DEBUG(llvm::dbgs() << "=== End " DEBUG_TYPE " ===\n");
}