From 79047fac65b95a5a98bde0de473da858e805576c Mon Sep 17 00:00:00 2001 From: paperchalice Date: Wed, 11 Dec 2024 11:31:42 +0800 Subject: [DomTreeUpdater] Move critical edge splitting code to updater (#115111) Support critical edge splitting in dominator tree updater. Continue the work in #100856. Compile time check: https://llvm-compile-time-tracker.com/compare.php?from=87c35d782795b54911b3e3a91a5b738d4d870e55&to=42b3e5623a9ab4c3648564dc0926b36f3b438a3a&stat=instructions%3Au --- llvm/lib/CodeGen/MachineBasicBlock.cpp | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'llvm/lib/CodeGen/MachineBasicBlock.cpp') diff --git a/llvm/lib/CodeGen/MachineBasicBlock.cpp b/llvm/lib/CodeGen/MachineBasicBlock.cpp index 5d06af3e..5ac6472 100644 --- a/llvm/lib/CodeGen/MachineBasicBlock.cpp +++ b/llvm/lib/CodeGen/MachineBasicBlock.cpp @@ -16,11 +16,13 @@ #include "llvm/CodeGen/LiveIntervals.h" #include "llvm/CodeGen/LivePhysRegs.h" #include "llvm/CodeGen/LiveVariables.h" +#include "llvm/CodeGen/MachineDomTreeUpdater.h" #include "llvm/CodeGen/MachineDominators.h" #include "llvm/CodeGen/MachineFunction.h" #include "llvm/CodeGen/MachineInstrBuilder.h" #include "llvm/CodeGen/MachineJumpTableInfo.h" #include "llvm/CodeGen/MachineLoopInfo.h" +#include "llvm/CodeGen/MachinePostDominators.h" #include "llvm/CodeGen/MachineRegisterInfo.h" #include "llvm/CodeGen/SlotIndexes.h" #include "llvm/CodeGen/TargetInstrInfo.h" @@ -1146,7 +1148,7 @@ public: MachineBasicBlock *MachineBasicBlock::SplitCriticalEdge( MachineBasicBlock *Succ, Pass *P, MachineFunctionAnalysisManager *MFAM, - std::vector> *LiveInSets) { + std::vector> *LiveInSets, MachineDomTreeUpdater *MDTU) { assert((P || MFAM) && "Need a way to get analysis results!"); if (!canSplitCriticalEdge(Succ)) return nullptr; @@ -1346,8 +1348,8 @@ MachineBasicBlock *MachineBasicBlock::SplitCriticalEdge( LIS->repairIntervalsInRange(this, getFirstTerminator(), end(), UsedRegs); } - if (auto *MDT = GET_RESULT(MachineDominatorTree, getDomTree, )) - MDT->recordSplitCriticalEdge(this, Succ, NMBB); + if (MDTU) + MDTU->splitCriticalEdge(this, Succ, NMBB); if (MachineLoopInfo *MLI = GET_RESULT(MachineLoop, getLI, Info)) if (MachineLoop *TIL = MLI->getLoopFor(this)) { -- cgit v1.1