Changes in directory llvm/lib/Transforms/Scalar:
LoopStrengthReduce.cpp updated: 1.90 -> 1.91
---
Log message:
prepare for a change I'm about to make
---
Diffs of the changes: (+6 -0)
LoopStrengthReduce.cpp | 6 ++++++
1 files changed, 6 insertions(+)
Index: llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
diff -u llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp:1.90
llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp:1.91
--- llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp:1.90 Fri Oct 20
02:07:24 2006
+++ llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp Fri Oct 27 19:59:20 2006
@@ -379,6 +379,9 @@
for (unsigned i = 0, e = PN->getNumIncomingValues(); i != e; ++i)
if (PN->getIncomingValue(i) == IV) {
SplitCriticalEdge(PN->getIncomingBlock(i), PN->getParent(), P);
+ // Splitting the critical edge can reduce the number of entries in this
+ // PHI.
+ e = PN->getNumIncomingValues();
if (--NumUses == 0) break;
}
@@ -589,6 +592,9 @@
BasicBlock *NewBB = PN->getIncomingBlock(i);
NewBB->moveBefore(PN->getParent());
}
+
+ // Splitting the edge can reduce the number of PHI entries we have.
+ e = PN->getNumIncomingValues();
}
Value *&Code = InsertedCode[PN->getIncomingBlock(i)];
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