Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.10 -> 1.11
---
Log message:
When unswitching a trivial loop, do admit we are doing it! :)
---
Diffs of the changes: (+7 -0)
LoopUnswitch.cpp | 7 +++++++
1 files changed, 7 insertions(+)
Index: llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
diff -u llvm/lib/Transforms/Scalar/LoopUnswitch.cpp:1.10
llvm/lib/Transforms/Scalar/LoopUnswitch.cpp:1.11
--- llvm/lib/Transforms/Scalar/LoopUnswitch.cpp:1.10 Thu Feb 9 19:24:09 2006
+++ llvm/lib/Transforms/Scalar/LoopUnswitch.cpp Thu Feb 9 19:36:35 2006
@@ -346,6 +346,11 @@
/// moving the conditional branch outside of the loop and updating loop info.
void LoopUnswitch::UnswitchTrivialCondition(Loop *L, Value *Cond,
ConstantBool *LoopCond) {
+ DEBUG(std::cerr << "loop-unswitch: Trivial-Unswitch loop %"
+ << L->getHeader()->getName() << " [" << L->getBlocks().size()
+ << " blocks] in Function " << L->getHeader()->getParent()->getName()
+ << " on cond:" << *Cond << "\n");
+
// First step, split the preahder, so that we know that there is a safe place
// to insert the conditional branch. We will change 'OrigPH' to have a
// conditional branch on Cond.
@@ -373,6 +378,8 @@
// particular value, rewrite the loop with this info. We know that this will
// at least eliminate the old branch.
RewriteLoopBodyWithConditionConstant(L, Cond, EnterOnTrue);
+
+ ++NumUnswitched;
}
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