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[ReleaseNotes] tidy up organization and formatting
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174587 91177308-0d34-0410-b5e6-96231b3b80d8
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chisophugis committed Feb 7, 2013
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Expand Up @@ -52,27 +52,12 @@ Non-comprehensive list of changes in this release
easy-to-write reStructuredText. See `llvm/docs/README.txt` for more
information.

Loop Vectorizer
---------------
We've continued the work on the loop vectorizer. The loop vectorizer now has the following features:
# Loops with unknown trip count.
# Runtime checks of pointers
# Reductions, Inductions
# If Conversion
# Pointer induction variables
# Reverse iterators
# Vectorization of mixed types
# Vectorization of function calls
# Partial unrolling during vectorization

We've also improved the X86 and ARM cost model.

TargetTransformInfo
-------------------
TargetTransformInto (TTI) is a new interface that can be used by IR-level passes
to obtain target-specific information, such as the costs of instructions. Only "Lowering"
passes such as LSR and the vectorizer are allowed to use the TTI infrastructure.
* TargetTransformInfo (TTI) is a new interface that can be used by IR-level
passes to obtain target-specific information, such as the costs of
instructions. Only "Lowering" passes such as LSR and the vectorizer are
allowed to use the TTI infrastructure.

* We've improved the X86 and ARM cost model.

* ... next change ...

Expand All @@ -86,6 +71,24 @@ Non-comprehensive list of changes in this release
Makes programs 10x faster by doing Special New Thing.
Loop Vectorizer
---------------

We've continued the work on the loop vectorizer. The loop vectorizer now
has the following features:

- Loops with unknown trip count.
- Runtime checks of pointers
- Reductions, Inductions
- If Conversion
- Pointer induction variables
- Reverse iterators
- Vectorization of mixed types
- Vectorization of function calls
- Partial unrolling during vectorization



Additional Information
======================

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