Matthias Braun 2addf067a2 MachineRegisterInfo: Remove UsedPhysReg infrastructure ...

We have a detailed def/use lists for every physical register in
MachineRegisterInfo anyway, so there is little use in maintaining an
additional bitset of which ones are used.

Removing it frees us from extra book keeping. This simplifies
VirtRegMap.

Differential Revision: http://reviews.llvm.org/D10911

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242173 91177308-0d34-0410-b5e6-96231b3b80d8

2015-07-14 17:52:07 +00:00

6.6 KiB

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