[llvm-commits] [llvm] r134010 - /llvm/trunk/lib/Transforms/Scalar/IndVarSimplify.cpp
Andrew Trick
atrick at apple.com
Tue Jun 28 09:45:04 PDT 2011
Author: atrick
Date: Tue Jun 28 11:45:04 2011
New Revision: 134010
URL: http://llvm.org/viewvc/llvm-project?rev=134010&view=rev
Log:
cleanup: misleading comment.
Modified:
llvm/trunk/lib/Transforms/Scalar/IndVarSimplify.cpp
Modified: llvm/trunk/lib/Transforms/Scalar/IndVarSimplify.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/IndVarSimplify.cpp?rev=134010&r1=134009&r2=134010&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/IndVarSimplify.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/IndVarSimplify.cpp Tue Jun 28 11:45:04 2011
@@ -1085,7 +1085,7 @@
// simplification on the wide IVs.
while (!LoopPhis.empty()) {
// Evaluate as many IV expressions as possible before widening any IVs. This
- // forces SCEV to propagate no-wrap flags before evaluating sign/zero
+ // forces SCEV to set no-wrap flags before evaluating sign/zero
// extension. The first time SCEV attempts to normalize sign/zero extension,
// the result becomes final. So for the most predictable results, we delay
// evaluation of sign/zero extend evaluation until needed, and avoid running
@@ -1176,7 +1176,7 @@
// Simplification works best when run before other consumers of SCEV. We
// attempt to avoid evaluating SCEVs for sign/zero extend operations until
// other expressions involving loop IVs have been evaluated. This helps SCEV
- // propagate no-wrap flags before normalizing sign/zero extension.
+ // set no-wrap flags before normalizing sign/zero extension.
if (DisableIVRewrite) {
Rewriter.disableCanonicalMode();
SimplifyIVUsersNoRewrite(L, Rewriter);
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