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-rw-r--r--lib/CodeGen/RegisterCoalescer.cpp9
1 files changed, 1 insertions, 8 deletions
diff --git a/lib/CodeGen/RegisterCoalescer.cpp b/lib/CodeGen/RegisterCoalescer.cpp
index ca5d280739..7831906c62 100644
--- a/lib/CodeGen/RegisterCoalescer.cpp
+++ b/lib/CodeGen/RegisterCoalescer.cpp
@@ -1397,15 +1397,8 @@ bool RegisterCoalescer::joinIntervals(CoalescerPair &CP) {
while (I != IE && J != JE) {
// Determine if these two live ranges overlap.
- bool Overlaps;
- if (I->start < J->start) {
- Overlaps = I->end > J->start;
- } else {
- Overlaps = J->end > I->start;
- }
-
// If so, check value # info to determine if they are really different.
- if (Overlaps) {
+ if (I->end > J->start && J->end > I->start) {
// If the live range overlap will map to the same value number in the
// result liverange, we can still coalesce them. If not, we can't.
if (LHSValNoAssignments[I->valno->id] !=