CodeGen: Port ExpandLargeDivRem to new pass manager

Author: arsenm

llvm/include/llvm/CodeGen/ExpandLargeDivRem.h

@@ -0,0 +1,30 @@
+//===- ExpandLargeDivRem.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_EXPANDLARGEDIVREM_H
+#define LLVM_CODEGEN_EXPANDLARGEDIVREM_H
+
+#include "llvm/IR/PassManager.h"
+
+namespace llvm {
+
+class TargetMachine;
+
+class ExpandLargeDivRemPass : public PassInfoMixin<ExpandLargeDivRemPass> {
+private:
+  const TargetMachine *TM;
+
+public:
+  explicit ExpandLargeDivRemPass(const TargetMachine *TM_) : TM(TM_) {}
+
+  PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
+};
+
+} // end namespace llvm
+
+#endif // LLVM_CODEGEN_EXPANDLARGEDIVREM_H

llvm/lib/CodeGen/ExpandLargeDivRem.cpp

@@ -14,6 +14,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/CodeGen/ExpandLargeDivRem.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/Analysis/GlobalsModRef.h"
@@ -128,6 +129,13 @@ class ExpandLargeDivRemLegacyPass : public FunctionPass {
 };
 } // namespace
 
+PreservedAnalyses ExpandLargeDivRemPass::run(Function &F,
+                                             FunctionAnalysisManager &FAM) {
+  const TargetSubtargetInfo *STI = TM->getSubtargetImpl(F);
+  PreservedAnalyses PA = PreservedAnalyses::none();
+  return runImpl(F, *STI->getTargetLowering()) ? PA : PreservedAnalyses::all();
+}
+
 char ExpandLargeDivRemLegacyPass::ID = 0;
 INITIALIZE_PASS_BEGIN(ExpandLargeDivRemLegacyPass, "expand-large-div-rem",
                       "Expand large div/rem", false, false)

llvm/lib/Passes/PassBuilder.cpp

@@ -72,6 +72,7 @@
 #include "llvm/Analysis/TargetTransformInfo.h"
 #include "llvm/Analysis/TypeBasedAliasAnalysis.h"
 #include "llvm/Analysis/UniformityAnalysis.h"
+#include "llvm/CodeGen/ExpandLargeDivRem.h"
 #include "llvm/CodeGen/HardwareLoops.h"
 #include "llvm/CodeGen/TypePromotion.h"
 #include "llvm/IR/DebugInfo.h"
@@ -234,8 +235,8 @@
 #include "llvm/Transforms/Utils/CanonicalizeAliases.h"
 #include "llvm/Transforms/Utils/CanonicalizeFreezeInLoops.h"
 #include "llvm/Transforms/Utils/CountVisits.h"
-#include "llvm/Transforms/Utils/Debugify.h"
 #include "llvm/Transforms/Utils/DXILUpgrade.h"
+#include "llvm/Transforms/Utils/Debugify.h"
 #include "llvm/Transforms/Utils/EntryExitInstrumenter.h"
 #include "llvm/Transforms/Utils/FixIrreducible.h"
 #include "llvm/Transforms/Utils/HelloWorld.h"

llvm/lib/Passes/PassRegistry.def

@@ -445,6 +445,7 @@ FUNCTION_PASS("transform-warning", WarnMissedTransformationsPass())
 FUNCTION_PASS("tsan", ThreadSanitizerPass())
 FUNCTION_PASS("memprof", MemProfilerPass())
 FUNCTION_PASS("declare-to-assign", llvm::AssignmentTrackingPass())
+FUNCTION_PASS("expand-large-div-rem", ExpandLargeDivRemPass(TM));
 #undef FUNCTION_PASS
 
 #ifndef FUNCTION_PASS_WITH_PARAMS

llvm/test/Transforms/ExpandLargeDivRem/X86/sdiv129.ll

@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -S -mtriple=x86_64-- -expand-large-div-rem -expand-div-rem-bits 128 < %s | FileCheck %s
+; RUN: opt -S -mtriple=x86_64-- -passes=expand-large-div-rem -expand-div-rem-bits 128 < %s | FileCheck %s
 
 define void @sdiv129(ptr %ptr, ptr %out) nounwind {
 ; CHECK-LABEL: @sdiv129(

llvm/test/Transforms/ExpandLargeDivRem/X86/srem129.ll

@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -S -mtriple=x86_64-- -expand-large-div-rem -expand-div-rem-bits 128 < %s | FileCheck %s
+; RUN: opt -S -mtriple=x86_64-- -passes=expand-large-div-rem -expand-div-rem-bits 128 < %s | FileCheck %s
 
 define void @test(ptr %ptr, ptr %out) nounwind {
 ; CHECK-LABEL: @test(

llvm/test/Transforms/ExpandLargeDivRem/X86/udiv129.ll

@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -S -mtriple=x86_64-- -expand-large-div-rem -expand-div-rem-bits 128 < %s | FileCheck %s
+; RUN: opt -S -mtriple=x86_64-- -passes=expand-large-div-rem -expand-div-rem-bits 128 < %s | FileCheck %s
 
 define void @test(ptr %ptr, ptr %out) nounwind {
 ; CHECK-LABEL: @test(

llvm/test/Transforms/ExpandLargeDivRem/X86/urem129.ll

@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -S -mtriple=x86_64-- -expand-large-div-rem -expand-div-rem-bits 128 < %s | FileCheck %s
+; RUN: opt -S -mtriple=x86_64-- -passes=expand-large-div-rem -expand-div-rem-bits 128 < %s | FileCheck %s
 
 define void @test(ptr %ptr, ptr %out) nounwind {
 ; CHECK-LABEL: @test(