[clang] bd7433b - [clang][LifetimeSafety] Fix unnamed TimeTraceScope in computePersistentOrigins (#213521)

[via cfe-commits]

Author: Gábor Horváth
Date: 2026-08-03T10:07:07+01:00
New Revision: bd7433bd275cacc7493892e5bfbdb76de0f18cd4

URL: https://github.com/llvm/llvm-project/commit/bd7433bd275cacc7493892e5bfbdb76de0f18cd4
DIFF: https://github.com/llvm/llvm-project/commit/bd7433bd275cacc7493892e5bfbdb76de0f18cd4.diff

LOG: [clang][LifetimeSafety] Fix unnamed TimeTraceScope in computePersistentOrigins (#213521)

The TimeTraceScope was constructed as a temporary and destroyed
immediately, so the prepass was reported as taking ~0. It actually
accounts for ~14% of LoanPropagation in some cases.

Co-authored-by: Gabor Horvath <gaborh at apple.com>

Added: 
    

Modified: 
    clang/lib/Analysis/LifetimeSafety/LoanPropagation.cpp

Removed: 
    


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diff  --git a/clang/lib/Analysis/LifetimeSafety/LoanPropagation.cpp b/clang/lib/Analysis/LifetimeSafety/LoanPropagation.cpp
index 078892bd48c10..12b88c18b90b4 100644
--- a/clang/lib/Analysis/LifetimeSafety/LoanPropagation.cpp
+++ b/clang/lib/Analysis/LifetimeSafety/LoanPropagation.cpp
@@ -29,7 +29,7 @@ namespace clang::lifetimes::internal {
 // referenced in more than one basic block.
 static llvm::BitVector computePersistentOrigins(const FactManager &FactMgr,
                                                 const CFG &C) {
-  llvm::TimeTraceScope("ComputePersistentOrigins");
+  llvm::TimeTraceScope TimeProfile("ComputePersistentOrigins");
   unsigned NumOrigins = FactMgr.getOriginMgr().getNumOrigins();
   llvm::BitVector PersistentOrigins(NumOrigins);