[llvm-commits] [llvm] r123965 - /llvm/trunk/lib/Transforms/InstCombine/InstructionCombining.cpp
Chris Lattner
sabre at nondot.org
Thu Jan 20 21:08:27 PST 2011
Author: lattner
Date: Thu Jan 20 23:08:26 2011
New Revision: 123965
URL: http://llvm.org/viewvc/llvm-project?rev=123965&view=rev
Log:
update obsolete comment.
Modified:
llvm/trunk/lib/Transforms/InstCombine/InstructionCombining.cpp
Modified: llvm/trunk/lib/Transforms/InstCombine/InstructionCombining.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/InstCombine/InstructionCombining.cpp?rev=123965&r1=123964&r2=123965&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/InstCombine/InstructionCombining.cpp (original)
+++ llvm/trunk/lib/Transforms/InstCombine/InstructionCombining.cpp Thu Jan 20 23:08:26 2011
@@ -532,10 +532,9 @@
if (NumPHIValues == 0)
return 0;
- // We normally only transform phis with a single use, unless we're trying
- // hard to make jump threading happen. However, if a PHI has multiple uses
- // and they are all the same operation, we can fold *all* of the uses into the
- // PHI.
+ // We normally only transform phis with a single use. However, if a PHI has
+ // multiple uses and they are all the same operation, we can fold *all* of the
+ // uses into the PHI.
if (!PN->hasOneUse()) {
// Walk the use list for the instruction, comparing them to I.
for (Value::use_iterator UI = PN->use_begin(), E = PN->use_end();
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