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author | Mark Lacey <mark.lacey@apple.com> | 2013-08-14 23:50:09 +0000 |
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committer | Mark Lacey <mark.lacey@apple.com> | 2013-08-14 23:50:09 +0000 |
commit | 03fe68e0a9c0fdd196f62899cb44b6f9a56dd7c8 (patch) | |
tree | ad445ad6a2275fcdaf877e9a5f3f16e972d330b7 /lib/CodeGen/MachineRegisterInfo.cpp | |
parent | 1feb5854aeeda897e9318c8193d187673c8576b8 (diff) | |
download | llvm-03fe68e0a9c0fdd196f62899cb44b6f9a56dd7c8.tar.gz llvm-03fe68e0a9c0fdd196f62899cb44b6f9a56dd7c8.tar.bz2 llvm-03fe68e0a9c0fdd196f62899cb44b6f9a56dd7c8.tar.xz |
Notify LiveRangeEdit of new virtual registers.
Add a delegate class to MachineRegisterInfo with a single virtual
function, MRI_NoteNewVirtualRegister(). Update LiveRangeEdit to inherit
from this delegate class and override the definition of the callback
with an implementation that tracks the newly created virtual registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188435 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineRegisterInfo.cpp')
-rw-r--r-- | lib/CodeGen/MachineRegisterInfo.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/CodeGen/MachineRegisterInfo.cpp b/lib/CodeGen/MachineRegisterInfo.cpp index 7f2c0caca4..ce7d567cc2 100644 --- a/lib/CodeGen/MachineRegisterInfo.cpp +++ b/lib/CodeGen/MachineRegisterInfo.cpp @@ -20,7 +20,7 @@ using namespace llvm; MachineRegisterInfo::MachineRegisterInfo(const TargetMachine &TM) - : TM(TM), IsSSA(true), TracksLiveness(true) { + : TM(TM), TheDelegate(0), IsSSA(true), TracksLiveness(true) { VRegInfo.reserve(256); RegAllocHints.reserve(256); UsedRegUnits.resize(getTargetRegisterInfo()->getNumRegUnits()); @@ -108,6 +108,8 @@ MachineRegisterInfo::createVirtualRegister(const TargetRegisterClass *RegClass){ VRegInfo.grow(Reg); VRegInfo[Reg].first = RegClass; RegAllocHints.grow(Reg); + if (TheDelegate) + TheDelegate->MRI_NoteNewVirtualRegister(Reg); return Reg; } |