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[NFC][LLVM][CodeGen] Create header file for MIRFSDiscriminator options (#163438)

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Extract extern variable declaration into a header per
https://discourse.llvm.org/t/rfc-cs-changes-for-standalone-variables/88581
This commit is contained in:
Rahul Joshi
2025-10-20 13:50:39 -07:00
committed by GitHub
parent 9e9d67dc9c
commit 670fb3e768
3 changed files with 25 additions and 7 deletions
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22
llvm/include/llvm/CodeGen/MIRFSDiscriminatorOptions.h Normal file
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@@ -0,0 +1,22 @@
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Command line options for MIR Flow Sensitive discriminators.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_MIRFSDISCRIMINATOR_OPTIONS_H
#define LLVM_CODEGEN_MIRFSDISCRIMINATOR_OPTIONS_H
#include "llvm/Support/CommandLine.h"
namespace llvm {
extern cl::opt<bool> ImprovedFSDiscriminator;
} // namespace llvm
#endif // LLVM_CODEGEN_MIRFSDISCRIMINATOR_OPTIONS_H

6
llvm/lib/CodeGen/MIRFSDiscriminator.cpp
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@@ -15,6 +15,7 @@
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/Analysis/BlockFrequencyInfoImpl.h"
#include "llvm/CodeGen/MIRFSDiscriminatorOptions.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/IR/Function.h"
@@ -35,13 +36,10 @@ using namespace sampleprofutil;
// TODO(xur): Remove this option and related code once we make true as the
// default.
namespace llvm {
cl::opt<bool> ImprovedFSDiscriminator(
cl::opt<bool> llvm::ImprovedFSDiscriminator(
"improved-fs-discriminator", cl::Hidden, cl::init(false),
cl::desc("New FS discriminators encoding (incompatible with the original "
"encoding)"));
} // namespace llvm
char MIRAddFSDiscriminators::ID = 0;
INITIALIZE_PASS(MIRAddFSDiscriminators, DEBUG_TYPE,

4
llvm/lib/CodeGen/MIRSampleProfile.cpp
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@@ -15,6 +15,7 @@
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/Analysis/BlockFrequencyInfoImpl.h"
#include "llvm/CodeGen/MIRFSDiscriminatorOptions.h"
#include "llvm/CodeGen/MachineBlockFrequencyInfo.h"
#include "llvm/CodeGen/MachineBranchProbabilityInfo.h"
#include "llvm/CodeGen/MachineDominators.h"
@@ -62,9 +63,6 @@ static cl::opt<bool> ViewBFIAfter("fs-viewbfi-after", cl::Hidden,
cl::init(false),
cl::desc("View BFI after MIR loader"));
namespace llvm {
extern cl::opt<bool> ImprovedFSDiscriminator;
}
char MIRProfileLoaderPass::ID = 0;
INITIALIZE_PASS_BEGIN(MIRProfileLoaderPass, DEBUG_TYPE,