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-rw-r--r--llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
index 51dfa65da62..5b729a642b7 100644
--- a/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
+++ b/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
@@ -1411,6 +1411,10 @@ bool ARMLoadStoreOpt::runOnMachineFunction(MachineFunction &Fn) {
}
delete RS;
+
+ // Kill flags aren't updated accurately by this pass.
+ Fn.getRegInfo().invalidateLiveness();
+
return Modified;
}
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