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-rw-r--r--lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp b/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp
index a2887aa81895..8e312dcf276f 100644
--- a/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp
+++ b/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp
@@ -853,9 +853,11 @@ AArch64LoadStoreOpt::promoteLoadFromStore(MachineBasicBlock::iterator LoadI,
.addImm(Imms);
}
}
- StoreI->clearRegisterKills(StRt, TRI);
- (void)BitExtMI;
+ // Clear kill flags between store and load.
+ for (MachineInstr &MI : make_range(StoreI->getIterator(),
+ BitExtMI->getIterator()))
+ MI.clearRegisterKills(StRt, TRI);
DEBUG(dbgs() << "Promoting load by replacing :\n ");
DEBUG(StoreI->print(dbgs()));