llvm-6502/unittests/Transforms
Peter Collingbourne d63e5ad9c5 LowerBitSets: Align referenced globals.
This change aligns globals to the next highest power of 2 bytes, up to a
maximum of 128. This makes it more likely that we will be able to compress
bit sets with a greater alignment. In many more cases, we can now take
advantage of a new optimization also introduced in this patch that removes
bit set checks if the bit set is all ones.

The 128 byte maximum was found to provide the best tradeoff between instruction
overhead and data overhead in a recent build of Chromium. It allows us to
remove ~2.4MB of instructions at the cost of ~250KB of data.

Differential Revision: http://reviews.llvm.org/D7873

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230540 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-25 20:42:41 +00:00
..
IPO LowerBitSets: Align referenced globals. 2015-02-25 20:42:41 +00:00
Utils [cleanup] Re-sort all the #include lines in LLVM using 2015-01-14 11:23:27 +00:00
CMakeLists.txt Introduce bitset metadata format and bitset lowering pass. 2015-02-20 20:30:47 +00:00
Makefile Introduce bitset metadata format and bitset lowering pass. 2015-02-20 20:30:47 +00:00