[NewPM] Remove StripGCRelocatesLegacyPass

[boomanaiden154]

This pass isn't used anywhere upstream and thus has no test coverage. For these reasons, remove it.

[llvmbot]

@llvm/pr-subscribers-llvm-transforms

Author: Aiden Grossman (boomanaiden154)

Changes

This pass isn't used anywhere upstream and thus has no test coverage. For these reasons, remove it.

---

Full diff: https://github.com/llvm/llvm-project/pull/73403.diff

3 Files Affected:

• (modified) llvm/include/llvm/InitializePasses.h (-1)
• (modified) llvm/lib/Transforms/Utils/StripGCRelocates.cpp (-18)
• (modified) llvm/lib/Transforms/Utils/Utils.cpp (-1)

diff --git a/llvm/include/llvm/InitializePasses.h b/llvm/include/llvm/InitializePasses.h
index 05122ea98d8ca52..5e5d095227d1f72 100644
--- a/llvm/include/llvm/InitializePasses.h
+++ b/llvm/include/llvm/InitializePasses.h
@@ -300,7 +300,6 @@ void initializeStackSafetyInfoWrapperPassPass(PassRegistry &);
 void initializeStackSlotColoringPass(PassRegistry&);
 void initializeStraightLineStrengthReduceLegacyPassPass(PassRegistry &);
 void initializeStripDebugMachineModulePass(PassRegistry &);
-void initializeStripGCRelocatesLegacyPass(PassRegistry &);
 void initializeStructurizeCFGLegacyPassPass(PassRegistry &);
 void initializeTailCallElimPass(PassRegistry&);
 void initializeTailDuplicatePass(PassRegistry&);
diff --git a/llvm/lib/Transforms/Utils/StripGCRelocates.cpp b/llvm/lib/Transforms/Utils/StripGCRelocates.cpp
index 0ff88e8b4612ad5..a39043722ed6555 100644
--- a/llvm/lib/Transforms/Utils/StripGCRelocates.cpp
+++ b/llvm/lib/Transforms/Utils/StripGCRelocates.cpp
@@ -66,21 +66,3 @@ PreservedAnalyses StripGCRelocates::run(Function &F,
   PA.preserveSet<CFGAnalyses>();
   return PA;
 }
-
-namespace {
-struct StripGCRelocatesLegacy : public FunctionPass {
-  static char ID; // Pass identification, replacement for typeid
-  StripGCRelocatesLegacy() : FunctionPass(ID) {
-    initializeStripGCRelocatesLegacyPass(*PassRegistry::getPassRegistry());
-  }
-
-  void getAnalysisUsage(AnalysisUsage &Info) const override {}
-
-  bool runOnFunction(Function &F) override { return ::stripGCRelocates(F); }
-};
-char StripGCRelocatesLegacy::ID = 0;
-} // namespace
-
-INITIALIZE_PASS(StripGCRelocatesLegacy, "strip-gc-relocates",
-                "Strip gc.relocates inserted through RewriteStatepointsForGC",
-                true, false)
diff --git a/llvm/lib/Transforms/Utils/Utils.cpp b/llvm/lib/Transforms/Utils/Utils.cpp
index 5c47bae00ce231f..dfcda9bb9706249 100644
--- a/llvm/lib/Transforms/Utils/Utils.cpp
+++ b/llvm/lib/Transforms/Utils/Utils.cpp
@@ -29,7 +29,6 @@ void llvm::initializeTransformUtils(PassRegistry &Registry) {
   initializeLowerInvokeLegacyPassPass(Registry);
   initializeLowerSwitchLegacyPassPass(Registry);
   initializePromoteLegacyPassPass(Registry);
-  initializeStripGCRelocatesLegacyPass(Registry);
   initializePredicateInfoPrinterLegacyPassPass(Registry);
   initializeFixIrreduciblePass(Registry);
   initializeUnifyLoopExitsLegacyPassPass(Registry);

[nikic]

LGTM. I was initially concerned that this pass could be used by out-of-tree backends, but this is actually a debugging pass.