RPCS3/archived-llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2026-01-31 01:35:20 +01:00
Code Issues Packages Projects Releases Wiki Activity
69,890 Commits 6 Branches 7 Tags
4e7ec00a1dd1feef48b855024bfb376143b5872d
Commit Graph

4 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen
df9e162423 Enable loop splitting in RegAllocGreedy. 
The heuristics split around the largest loop where the current register may be
allocated without interference.

llvm-svn: 122106
 2010-12-17 23:16:32 +00:00
Jakob Stoklund Olesen
f4a0c81371 Add MachineLoopRange comparators for sorting loop lists by number and by area. 
llvm-svn: 122073
 2010-12-17 18:13:52 +00:00
Jakob Stoklund Olesen
40f23cd5ca Provide LiveIntervalUnion::Query::checkLoopInterference. 
This is a three-way interval list intersection between a virtual register, a
live interval union, and a loop. It will be used to identify interference-free
loops for live range splitting.

llvm-svn: 122034
 2010-12-17 04:09:47 +00:00
Jakob Stoklund Olesen
d40af5ffbd Add MachineLoopRanges analysis. 
A MachineLoopRange contains the intervals of slot indexes covered by the blocks
in a loop. This representation of the loop blocks is more efficient to compare
against interfering registers during register coalescing.

llvm-svn: 121917
 2010-12-15 23:41:23 +00:00