llvm/lib at d807674c8b1a8d191a4e52795fd6a3a6de184116 - llvm

RPCS3/llvm

mirror of https://github.com/RPCS3/llvm.git synced 2025-01-16 23:19:37 +00:00

History

Jakob Stoklund Olesen 4d517e34e5 Rewrite RAGreedy::splitAroundRegion, now with cool ASCII art.

This function has to deal with a lot of special cases, and the old
version got it wrong sometimes. In particular, it would sometimes leave
multiple uses in the stack interval in a single block. That causes bad
code with multiple reloads in the same basic block.

The new version handles block entry and exit in a single pass. It first
eliminates all the easy cases, and then goes on to create a local
interval for the blocks with difficult interference. Previously, we
would only create the local interval for completely isolated blocks.

It can happen that the stack interval becomes completely empty because
we could allocate a register in all edge bundles, and the new local
intervals deal with the interference. The empty stack interval is
harmless, but we need to remove a SplitKit assertion that checks for
empty intervals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134047 91177308-0d34-0410-b5e6-96231b3b80d8

2011-06-29 00:24:24 +00:00

Analysis

Cleanup. Fix a stupid variable name.

2011-06-28 05:41:52 +00:00

Archive

Revert PathV2 changes, as sys::fs::unique_file is not finished yet.

2011-03-01 19:50:55 +00:00

AsmParser

Replace the existing forms of ConstantArray::get() with a single form

2011-06-22 09:24:39 +00:00

Bitcode

Replace the existing forms of ConstantArray::get() with a single form