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authorKazu Hirata <kazu@google.com>2025-03-08 01:02:47 -0800
committerGitHub <noreply@github.com>2025-03-08 01:02:47 -0800
commit49cf69a46b0527eaa7ac2eb1f4be898dd99727ba (patch)
treed25def08d448ca8c8217cddf8ec24e8cf165aa0e /llvm/lib
parent3e0c503e3e259ce63b08e5d780a82fe7385dfbc8 (diff)
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[SystemZ] Avoid repeated hash lookups (NFC) (#130392)
Diffstat (limited to 'llvm/lib')
-rw-r--r--llvm/lib/Target/SystemZ/SystemZMachineScheduler.cpp8
1 files changed, 5 insertions, 3 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZMachineScheduler.cpp b/llvm/lib/Target/SystemZ/SystemZMachineScheduler.cpp
index 4bc979de..5e2365f 100644
--- a/llvm/lib/Target/SystemZ/SystemZMachineScheduler.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZMachineScheduler.cpp
@@ -94,14 +94,16 @@ void SystemZPostRASchedStrategy::enterMBB(MachineBasicBlock *NextMBB) {
// scheduled. If this is not possible, we are done.
MachineBasicBlock *SinglePredMBB =
getSingleSchedPred(MBB, MLI->getLoopFor(MBB));
- if (SinglePredMBB == nullptr ||
- SchedStates.find(SinglePredMBB) == SchedStates.end())
+ if (SinglePredMBB == nullptr)
+ return;
+ auto It = SchedStates.find(SinglePredMBB);
+ if (It == SchedStates.end())
return;
LLVM_DEBUG(dbgs() << "** Continued scheduling from "
<< printMBBReference(*SinglePredMBB) << "\n";);
- HazardRec->copyState(SchedStates[SinglePredMBB]);
+ HazardRec->copyState(It->second);
LLVM_DEBUG(HazardRec->dumpState(););
// Emit incoming terminator(s). Be optimistic and assume that branch