Remove BB epoch quirk

dotnet · Nov 21, 2024 · aa70517 · aa70517
1 parent 03bc39f
commit aa70517
Showing 1 changed file with 0 additions and 9 deletions.
diff --git a/src/coreclr/jit/compiler.cpp b/src/coreclr/jit/compiler.cpp
@@ -4921,15 +4921,6 @@ void Compiler::compCompile(void** methodCodePtr, uint32_t* methodCodeSize, JitFl
 
             if (doLoopHoisting)
             {
-                if (doBranchOpt)
-                {
-                    // bbNum quirk: RBO uses the current BB epoch size to determine if loop hoisting created blocks.
-                    // Ensure the BB epoch is up to date before running loop hoisting to avoid false positives.
-                    // TODO-bbNum: Either replace this check with a breadcrumb like 'fgModified',
-                    // or relax jump threading's prerequisites.
-                    EnsureBasicBlockEpoch();
-                }
-
                 // Hoist invariant code out of loops
                 //
                 DoPhase(this, PHASE_HOIST_LOOP_CODE, &Compiler::optHoistLoopCode);