[llvm] [CodeGen][GC] Skip function without GC in `GCLoweringPass` (PR #84421)
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Thu Mar 7 18:14:33 PST 2024
https://github.com/paperchalice created https://github.com/llvm/llvm-project/pull/84421
None
>From e1668c840819c5ff2ebe28424bcd54a9a2abc484 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Fri, 8 Mar 2024 10:14:00 +0800
Subject: [PATCH] [CodeGen][GC] Skip function without GC in `GCLoweringPass`
---
llvm/lib/CodeGen/GCRootLowering.cpp | 3 +++
1 file changed, 3 insertions(+)
diff --git a/llvm/lib/CodeGen/GCRootLowering.cpp b/llvm/lib/CodeGen/GCRootLowering.cpp
index 894ab9a0486a7b..0d82f2bab8960b 100644
--- a/llvm/lib/CodeGen/GCRootLowering.cpp
+++ b/llvm/lib/CodeGen/GCRootLowering.cpp
@@ -81,6 +81,9 @@ class GCMachineCodeAnalysis : public MachineFunctionPass {
PreservedAnalyses GCLoweringPass::run(Function &F,
FunctionAnalysisManager &FAM) {
+ if (!F.hasGC())
+ return PreservedAnalyses::all();
+
auto &Info = FAM.getResult<GCFunctionAnalysis>(F);
bool Changed = DoLowering(F, Info.getStrategy());
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