[llvm] r216424 - fix typos in comments
spatel at rotateright.com
Mon Aug 25 17:59:15 PDT 2014
Date: Mon Aug 25 19:59:15 2014
New Revision: 216424
fix typos in comments
--- llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp (original)
+++ llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp Mon Aug 25 19:59:15 2014
@@ -5436,13 +5436,13 @@ LoopVectorizationCostModel::selectUnroll
// -- The unroll heuristics --
// We unroll the loop in order to expose ILP and reduce the loop overhead.
// There are many micro-architectural considerations that we can't predict
- // at this level. For example frontend pressure (on decode or fetch) due to
+ // at this level. For example, frontend pressure (on decode or fetch) due to
// code size, or the number and capabilities of the execution ports.
// We use the following heuristics to select the unroll factor:
- // 1. If the code has reductions the we unroll in order to break the cross
+ // 1. If the code has reductions, then we unroll in order to break the cross
// iteration dependency.
- // 2. If the loop is really small then we unroll in order to reduce the loop
+ // 2. If the loop is really small, then we unroll in order to reduce the loop
// 3. We don't unroll if we think that we will spill registers to memory due
// to the increased register pressure.
@@ -5452,7 +5452,7 @@ LoopVectorizationCostModel::selectUnroll
if (UserUF != 0)
- // When we optimize for size we don't unroll.
+ // When we optimize for size, we don't unroll.
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