SparseBitVector is SLOW.
authorJakob Stoklund Olesen <stoklund@2pi.dk>
Tue, 12 Apr 2011 21:30:53 +0000 (21:30 +0000)
committerJakob Stoklund Olesen <stoklund@2pi.dk>
Tue, 12 Apr 2011 21:30:53 +0000 (21:30 +0000)
commit5db4289e404d76664f8aabe2675a4cc2d7b0e98e
tree6ae92557a5112409cf3e9554609b92b371f3890c
parentf8c1c8465ff097ad5b87331b6d9a2576167f1402
SparseBitVector is SLOW.

Use a Bitvector instead, we didn't need the smaller memory footprint anyway.
This makes the greedy register allocator 10% faster.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129390 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/RegAllocGreedy.cpp
lib/CodeGen/SplitKit.h