Simplify the tracking of used physregs to a bulk bitor followed by a transitive
authorJakob Stoklund Olesen <stoklund@2pi.dk>
Tue, 11 May 2010 20:30:28 +0000 (20:30 +0000)
committerJakob Stoklund Olesen <stoklund@2pi.dk>
Tue, 11 May 2010 20:30:28 +0000 (20:30 +0000)
commit82b07dc4995d48065bd95affff4d8513a5cad4f2
tree6b6af716b38928b7be1e04fa7e0dceb3c1903251
parentd42718080f1f140726220563d741261fd7f661c5
Simplify the tracking of used physregs to a bulk bitor followed by a transitive
closure after allocating all blocks.

Add a few more test cases for -regalloc=fast.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103500 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/CodeGen/MachineRegisterInfo.h
lib/CodeGen/MachineRegisterInfo.cpp
lib/CodeGen/RegAllocFast.cpp
test/CodeGen/X86/fp-stack-O0-crash.ll
test/CodeGen/X86/liveness-local-regalloc.ll