[CodeGen][NPM] Port PatchableFunction to NPM (#129866)

Author: optimisan

llvm/include/llvm/CodeGen/PatchableFunction.h

@@ -0,0 +1,30 @@
+//===- llvm/CodeGen/PatchableFunction.h -------------------------*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CODEGEN_PATCHABLEFUNCTION_H
+#define LLVM_CODEGEN_PATCHABLEFUNCTION_H
+
+#include "llvm/CodeGen/MachinePassManager.h"
+
+namespace llvm {
+
+class PatchableFunctionPass : public PassInfoMixin<PatchableFunctionPass> {
+public:
+ PreservedAnalyses run(MachineFunction &MF,
+ MachineFunctionAnalysisManager &MFAM);
+
+ MachineFunctionProperties getRequiredProperties() const {
+ return MachineFunctionProperties().set(
+ MachineFunctionProperties::Property::NoVRegs);
+ }
+ static bool isRequired() { return true; }
+};
+
+} // namespace llvm
+
+#endif // LLVM_CODEGEN_PATCHABLEFUNCTION_H

llvm/include/llvm/InitializePasses.h

@@ -225,7 +225,7 @@ void initializeOptimizePHIsLegacyPass(PassRegistry &);
 void initializePEIPass(PassRegistry &);
 void initializePHIEliminationPass(PassRegistry &);
 void initializePartiallyInlineLibCallsLegacyPassPass(PassRegistry &);
-void initializePatchableFunctionPass(PassRegistry &);
+void initializePatchableFunctionLegacyPass(PassRegistry &);
 void initializePeepholeOptimizerLegacyPass(PassRegistry &);
 void initializePhiValuesWrapperPassPass(PassRegistry &);
 void initializePhysicalRegisterUsageInfoWrapperLegacyPass(PassRegistry &);

llvm/include/llvm/Passes/CodeGenPassBuilder.h

@@ -59,6 +59,7 @@
 #include "llvm/CodeGen/MachineVerifier.h"
 #include "llvm/CodeGen/OptimizePHIs.h"
 #include "llvm/CodeGen/PHIElimination.h"
+#include "llvm/CodeGen/PatchableFunction.h"
 #include "llvm/CodeGen/PeepholeOptimizer.h"
 #include "llvm/CodeGen/PostRASchedulerList.h"
 #include "llvm/CodeGen/PreISelIntrinsicLowering.h"

llvm/include/llvm/Passes/MachinePassRegistry.def

@@ -152,6 +152,7 @@ MACHINE_FUNCTION_PASS("machine-scheduler", MachineSchedulerPass(TM))
 MACHINE_FUNCTION_PASS("machinelicm", MachineLICMPass())
 MACHINE_FUNCTION_PASS("no-op-machine-function", NoOpMachineFunctionPass())
 MACHINE_FUNCTION_PASS("opt-phis", OptimizePHIsPass())
+MACHINE_FUNCTION_PASS("patchable-function", PatchableFunctionPass())
 MACHINE_FUNCTION_PASS("peephole-opt", PeepholeOptimizerPass())
 MACHINE_FUNCTION_PASS("phi-node-elimination", PHIEliminationPass())
 MACHINE_FUNCTION_PASS("post-RA-sched", PostRASchedulerPass(TM))
@@ -270,7 +271,6 @@ DUMMY_MACHINE_FUNCTION_PASS("machine-sanmd", MachineSanitizerBinaryMetadata)
 DUMMY_MACHINE_FUNCTION_PASS("machine-uniformity", MachineUniformityInfoWrapperPass)
 DUMMY_MACHINE_FUNCTION_PASS("machineinstr-printer", MachineFunctionPrinterPass)
 DUMMY_MACHINE_FUNCTION_PASS("mirfs-discriminators", MIRAddFSDiscriminatorsPass)
-DUMMY_MACHINE_FUNCTION_PASS("patchable-function", PatchableFunctionPass)
 DUMMY_MACHINE_FUNCTION_PASS("postra-machine-sink", PostRAMachineSinkingPass)
 DUMMY_MACHINE_FUNCTION_PASS("print-machine-uniformity", MachineUniformityInfoPrinterPass)
 DUMMY_MACHINE_FUNCTION_PASS("processimpdefs", ProcessImplicitDefsPass)

llvm/lib/CodeGen/CodeGen.cpp

@@ -103,7 +103,7 @@ void llvm::initializeCodeGen(PassRegistry &Registry) {
  initializeOptimizePHIsLegacyPass(Registry);
  initializePEIPass(Registry);
  initializePHIEliminationPass(Registry);
- initializePatchableFunctionPass(Registry);
+ initializePatchableFunctionLegacyPass(Registry);
  initializePeepholeOptimizerLegacyPass(Registry);
  initializePostMachineSchedulerLegacyPass(Registry);
  initializePostRAHazardRecognizerPass(Registry);

llvm/lib/CodeGen/PatchableFunction.cpp

@@ -11,6 +11,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/CodeGen/PatchableFunction.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
@@ -23,21 +24,37 @@
 using namespace llvm;
 
 namespace {
-struct PatchableFunction : public MachineFunctionPass {
- static char ID; // Pass identification, replacement for typeid
- PatchableFunction() : MachineFunctionPass(ID) {
- initializePatchableFunctionPass(*PassRegistry::getPassRegistry());
+struct PatchableFunction {
+ bool run(MachineFunction &F);
+};
+
+struct PatchableFunctionLegacy : public MachineFunctionPass {
+ static char ID;
+ PatchableFunctionLegacy() : MachineFunctionPass(ID) {
+ initializePatchableFunctionLegacyPass(*PassRegistry::getPassRegistry());
+ }
+ bool runOnMachineFunction(MachineFunction &F) override {
+ return PatchableFunction().run(F);
  }
 
- bool runOnMachineFunction(MachineFunction &F) override;
- MachineFunctionProperties getRequiredProperties() const override {
+ MachineFunctionProperties getRequiredProperties() const override {
  return MachineFunctionProperties().set(
  MachineFunctionProperties::Property::NoVRegs);
  }
 };
+
+} // namespace
+
+PreservedAnalyses
+PatchableFunctionPass::run(MachineFunction &MF,
+ MachineFunctionAnalysisManager &MFAM) {
+ MFPropsModifier _(*this, MF);
+ if (!PatchableFunction().run(MF))
+ return PreservedAnalyses::all();
+ return getMachineFunctionPassPreservedAnalyses();
 }
 
-bool PatchableFunction::runOnMachineFunction(MachineFunction &MF) {
+bool PatchableFunction::run(MachineFunction &MF) {
  MachineBasicBlock &FirstMBB = *MF.begin();
 
  if (MF.getFunction().hasFnAttribute("patchable-function-entry")) {
@@ -62,7 +79,7 @@ bool PatchableFunction::runOnMachineFunction(MachineFunction &MF) {
  return false;
 }
 
-char PatchableFunction::ID = 0;
-char &llvm::PatchableFunctionID = PatchableFunction::ID;
-INITIALIZE_PASS(PatchableFunction, "patchable-function",
+char PatchableFunctionLegacy::ID = 0;
+char &llvm::PatchableFunctionID = PatchableFunctionLegacy::ID;
+INITIALIZE_PASS(PatchableFunctionLegacy, "patchable-function",
  "Implement the 'patchable-function' attribute", false, false)

llvm/lib/Passes/PassBuilder.cpp

@@ -130,6 +130,7 @@
 #include "llvm/CodeGen/MachineVerifier.h"
 #include "llvm/CodeGen/OptimizePHIs.h"
 #include "llvm/CodeGen/PHIElimination.h"
+#include "llvm/CodeGen/PatchableFunction.h"
 #include "llvm/CodeGen/PeepholeOptimizer.h"
 #include "llvm/CodeGen/PostRASchedulerList.h"
 #include "llvm/CodeGen/PreISelIntrinsicLowering.h"

llvm/test/CodeGen/AArch64/patchable-function-entry-empty.mir

@@ -1,4 +1,5 @@
 # RUN: llc -mtriple=aarch64 -run-pass=patchable-function %s -o - | FileCheck %s
+# RUN: llc -mtriple=aarch64 -passes=patchable-function %s -o - | FileCheck %s
 
 ## The initial .loc covers PATCHABLE_FUNCTION_ENTER.
 ## Emitting a new .loc may create a prologue_end prematurely.