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-rw-r--r--lib/CodeGen/RegisterCoalescer.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/CodeGen/RegisterCoalescer.cpp b/lib/CodeGen/RegisterCoalescer.cpp
index df67975286..5d6e0f00ad 100644
--- a/lib/CodeGen/RegisterCoalescer.cpp
+++ b/lib/CodeGen/RegisterCoalescer.cpp
@@ -2080,8 +2080,10 @@ void RegisterCoalescer::joinAllIntervals() {
unsigned CurrDepth = UINT_MAX;
for (unsigned i = 0, e = MBBs.size(); i != e; ++i) {
// Try coalescing the collected local copies for deeper loops.
- if (JoinGlobalCopies && MBBs[i].Depth < CurrDepth)
+ if (JoinGlobalCopies && MBBs[i].Depth < CurrDepth) {
coalesceLocals();
+ CurrDepth = MBBs[i].Depth;
+ }
copyCoalesceInMBB(MBBs[i].MBB);
}
coalesceLocals();