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Also compute MBB live-in lists in the new rewriter pass.

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This deduplicates some code from the optimizing register allocators, and
it means that it is now possible to change the register allocators'
solutions simply by editing the VirtRegMap between the register
allocator pass and the rewriter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158249 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2012-06-09 00:14:47 +00:00
parent 77592fe39c
commit fe17bdbb50
6 changed files with 32 additions and 89 deletions
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2
lib/CodeGen/RegAllocBasic.cpp
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@ -308,8 +308,6 @@ bool RABasic::runOnMachineFunction(MachineFunction &mf) {
allocatePhysRegs();
addMBBLiveIns(MF);
// Diagnostic output before rewriting
DEBUG(dbgs() << "Post alloc VirtRegMap:\n" << *VRM << "\n");