James Y Knight e9359f427e Fix alignment checks in MergeConsecutiveStores.
1) check whether the alignment of the memory is sufficient for the
*merged* store or load to be efficient.

Not doing so can result in some ridiculously poor code generation, if
merging creates a vector operation which must be aligned but isn't.

2) DON'T check that the alignment of each load/store is equal. If
you're merging 2 4-byte stores, the first *might* have 8-byte
alignment, but the second certainly will have 4-byte alignment. We do
want to allow those to be merged.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236850 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-08 13:47:01 +00:00
2014-04-07 03:57:04 +00:00
2014-03-02 13:08:46 +00:00
2015-05-04 02:04:54 +00:00
2015-03-12 01:25:29 +00:00

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

This directory and its subdirectories contain source code for LLVM,
a toolkit for the construction of highly optimized compilers,
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LLVM backend for 6502
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