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Update the comment to mention that we use TTI.

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llvm-svn: 181178
This commit is contained in:
Nadav Rotem
2013-05-06 03:06:36 +00:00
parent c70ef4e93c
commit 632b25b743
1 changed files with 3 additions and 3 deletions
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6
llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
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@@ -8,9 +8,9 @@
//===----------------------------------------------------------------------===//
//
// This is the LLVM loop vectorizer. This pass modifies 'vectorizable' loops
// and generates target-independent LLVM-IR. Legalization of the IR is done
// in the codegen. However, the vectorizer uses (will use) the codegen
// interfaces to generate IR that is likely to result in an optimal binary.
// and generates target-independent LLVM-IR.
// The vectorizer uses the TargetTransformInfo analysis to estimate the costs
// of instructions in order to estimate the profitability of vectorization.
//
// The loop vectorizer combines consecutive loop iterations into a single
// 'wide' iteration. After this transformation the index is incremented