Duncan Sands c48b55a33d TryToSimplifyUncondBranchFromEmptyBlock was checking that any common
predecessors of the two blocks it is attempting to merge supply the
same incoming values to any phi in the successor block.  This change
allows merging in the case where there is one or more incoming values
that are undef.  The undef values are rewritten to match the non-undef
value that flows from the other edge.  Patch by Mark Lacey.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186069 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-11 08:28:20 +00:00
2013-07-08 21:18:54 +00:00
2013-05-07 20:31:28 +00:00
2013-07-08 20:24:54 +00:00
2013-07-10 00:52:41 +00:00
2012-10-09 23:48:34 +00:00
2013-07-08 21:18:54 +00:00
2013-06-18 22:09:36 +00:00
2013-04-17 05:34:03 +00:00

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.

Description
LLVM backend for 6502
Readme 277 MiB
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