[llvm] bbaa015 - [LegacyPM] Remove LowerTypeTestsPass

[Fangrui Song via llvm-commits]

Author: Fangrui Song
Date: 2022-07-17T15:06:38-07:00
New Revision: bbaa015e82f9e6bf6b1dad107aa112c8718be4e2

URL: https://github.com/llvm/llvm-project/commit/bbaa015e82f9e6bf6b1dad107aa112c8718be4e2
DIFF: https://github.com/llvm/llvm-project/commit/bbaa015e82f9e6bf6b1dad107aa112c8718be4e2.diff

LOG: [LegacyPM] Remove LowerTypeTestsPass

Unused after LTO removal from optimization passline.

Added: 
    

Modified: 
    llvm/include/llvm/InitializePasses.h
    llvm/include/llvm/Transforms/IPO.h
    llvm/lib/Transforms/IPO/IPO.cpp
    llvm/lib/Transforms/IPO/LowerTypeTests.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/include/llvm/InitializePasses.h b/llvm/include/llvm/InitializePasses.h
index 5260762b3437..8c5fe9d90124 100644
--- a/llvm/include/llvm/InitializePasses.h
+++ b/llvm/include/llvm/InitializePasses.h
@@ -269,7 +269,6 @@ void initializeLowerWidenableConditionLegacyPassPass(PassRegistry&);
 void initializeLowerIntrinsicsPass(PassRegistry&);
 void initializeLowerInvokeLegacyPassPass(PassRegistry&);
 void initializeLowerSwitchLegacyPassPass(PassRegistry &);
-void initializeLowerTypeTestsPass(PassRegistry&);
 void initializeLowerMatrixIntrinsicsLegacyPassPass(PassRegistry &);
 void initializeLowerMatrixIntrinsicsMinimalLegacyPassPass(PassRegistry &);
 void initializeMIRAddFSDiscriminatorsPass(PassRegistry &);

diff  --git a/llvm/include/llvm/Transforms/IPO.h b/llvm/include/llvm/Transforms/IPO.h
index 34c17b6d01cf..d1b461a3ea4c 100644
--- a/llvm/include/llvm/Transforms/IPO.h
+++ b/llvm/include/llvm/Transforms/IPO.h
@@ -239,22 +239,6 @@ enum class PassSummaryAction {
   Export, ///< Export information to summary.
 };
 
-/// This pass lowers type metadata and the llvm.type.test intrinsic to
-/// bitsets.
-///
-/// The behavior depends on the summary arguments:
-/// - If ExportSummary is non-null, this pass will export type identifiers to
-///   the given summary.
-/// - If ImportSummary is non-null, this pass will import type identifiers from
-///   the given summary.
-/// - Otherwise, if both are null and DropTypeTests is true, all type test
-///   assume sequences will be removed from the IR.
-/// It is invalid for both ExportSummary and ImportSummary to be non-null
-/// unless DropTypeTests is true.
-ModulePass *createLowerTypeTestsPass(ModuleSummaryIndex *ExportSummary,
-                                     const ModuleSummaryIndex *ImportSummary,
-                                     bool DropTypeTests = false);
-
 /// This pass export CFI checks for use by external modules.
 ModulePass *createCrossDSOCFIPass();
 

diff  --git a/llvm/lib/Transforms/IPO/IPO.cpp b/llvm/lib/Transforms/IPO/IPO.cpp
index f295870a32c2..6cccd62838af 100644
--- a/llvm/lib/Transforms/IPO/IPO.cpp
+++ b/llvm/lib/Transforms/IPO/IPO.cpp
@@ -44,7 +44,6 @@ void llvm::initializeIPO(PassRegistry &Registry) {
   initializeLoopExtractorLegacyPassPass(Registry);
   initializeBlockExtractorLegacyPassPass(Registry);
   initializeSingleLoopExtractorPass(Registry);
-  initializeLowerTypeTestsPass(Registry);
   initializeMergeFunctionsLegacyPassPass(Registry);
   initializePartialInlinerLegacyPassPass(Registry);
   initializeAttributorLegacyPassPass(Registry);

diff  --git a/llvm/lib/Transforms/IPO/LowerTypeTests.cpp b/llvm/lib/Transforms/IPO/LowerTypeTests.cpp
index d5f1d291f41f..6bf25df101fa 100644
--- a/llvm/lib/Transforms/IPO/LowerTypeTests.cpp
+++ b/llvm/lib/Transforms/IPO/LowerTypeTests.cpp
@@ -528,50 +528,8 @@ class LowerTypeTestsModule {
   // arguments. For testing purposes only.
   static bool runForTesting(Module &M);
 };
-
-struct LowerTypeTests : public ModulePass {
-  static char ID;
-
-  bool UseCommandLine = false;
-
-  ModuleSummaryIndex *ExportSummary;
-  const ModuleSummaryIndex *ImportSummary;
-  bool DropTypeTests;
-
-  LowerTypeTests() : ModulePass(ID), UseCommandLine(true) {
-    initializeLowerTypeTestsPass(*PassRegistry::getPassRegistry());
-  }
-
-  LowerTypeTests(ModuleSummaryIndex *ExportSummary,
-                 const ModuleSummaryIndex *ImportSummary, bool DropTypeTests)
-      : ModulePass(ID), ExportSummary(ExportSummary),
-        ImportSummary(ImportSummary),
-        DropTypeTests(DropTypeTests || ClDropTypeTests) {
-    initializeLowerTypeTestsPass(*PassRegistry::getPassRegistry());
-  }
-
-  bool runOnModule(Module &M) override {
-    if (UseCommandLine)
-      return LowerTypeTestsModule::runForTesting(M);
-    return LowerTypeTestsModule(M, ExportSummary, ImportSummary, DropTypeTests)
-        .lower();
-  }
-};
-
 } // end anonymous namespace
 
-char LowerTypeTests::ID = 0;
-
-INITIALIZE_PASS(LowerTypeTests, "lowertypetests", "Lower type metadata", false,
-                false)
-
-ModulePass *
-llvm::createLowerTypeTestsPass(ModuleSummaryIndex *ExportSummary,
-                               const ModuleSummaryIndex *ImportSummary,
-                               bool DropTypeTests) {
-  return new LowerTypeTests(ExportSummary, ImportSummary, DropTypeTests);
-}
-
 /// Build a bit set for TypeId using the object layouts in
 /// GlobalLayout.
 BitSetInfo LowerTypeTestsModule::buildBitSet(