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author | Chad Rosier <mcrosier@apple.com> | 2013-05-22 22:26:05 +0000 |
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committer | Chad Rosier <mcrosier@apple.com> | 2013-05-22 22:26:05 +0000 |
commit | 5cc3c989fc4295103ee46a2697e82dc1c4453545 (patch) | |
tree | 8b82363b2cc2e0923acc1d5fbf840326a18681d9 /lib | |
parent | d35da5055ba01057ee08b9feb987e02335c6f44f (diff) | |
download | llvm-5cc3c989fc4295103ee46a2697e82dc1c4453545.tar.gz llvm-5cc3c989fc4295103ee46a2697e82dc1c4453545.tar.bz2 llvm-5cc3c989fc4295103ee46a2697e82dc1c4453545.tar.xz |
Simplify logic now that r182490 is in place. No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182526 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
-rw-r--r-- | lib/CodeGen/LiveVariables.cpp | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/lib/CodeGen/LiveVariables.cpp b/lib/CodeGen/LiveVariables.cpp index 789eddc427..4e83fc833d 100644 --- a/lib/CodeGen/LiveVariables.cpp +++ b/lib/CodeGen/LiveVariables.cpp @@ -217,8 +217,8 @@ MachineInstr *LiveVariables::FindLastPartialDef(unsigned Reg, continue; unsigned DefReg = MO.getReg(); if (TRI->isSubRegister(Reg, DefReg)) { - PartDefRegs.insert(DefReg); - for (MCSubRegIterator SubRegs(DefReg, TRI); SubRegs.isValid(); ++SubRegs) + for (MCSubRegIterator SubRegs(DefReg, TRI, /*IncludeSelf=*/true); + SubRegs.isValid(); ++SubRegs) PartDefRegs.insert(*SubRegs); } } @@ -271,8 +271,8 @@ void LiveVariables::HandlePhysRegUse(unsigned Reg, MachineInstr *MI) { true/*IsImp*/)); // Remember this use. - PhysRegUse[Reg] = MI; - for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs) + for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true); + SubRegs.isValid(); ++SubRegs) PhysRegUse[*SubRegs] = MI; } @@ -350,8 +350,8 @@ bool LiveVariables::HandlePhysRegKill(unsigned Reg, MachineInstr *MI) { continue; } if (MachineInstr *Use = PhysRegUse[SubReg]) { - PartUses.insert(SubReg); - for (MCSubRegIterator SS(SubReg, TRI); SS.isValid(); ++SS) + for (MCSubRegIterator SS(SubReg, TRI, /*IncludeSelf=*/true); SS.isValid(); + ++SS) PartUses.insert(*SS); unsigned Dist = DistanceMap[Use]; if (Dist > LastRefOrPartRefDist) { @@ -387,8 +387,8 @@ bool LiveVariables::HandlePhysRegKill(unsigned Reg, MachineInstr *MI) { LastSubRef->addRegisterKilled(SubReg, TRI, true); else { LastRefOrPartRef->addRegisterKilled(SubReg, TRI, true); - PhysRegUse[SubReg] = LastRefOrPartRef; - for (MCSubRegIterator SS(SubReg, TRI); SS.isValid(); ++SS) + for (MCSubRegIterator SS(SubReg, TRI, /*IncludeSelf=*/true); + SS.isValid(); ++SS) PhysRegUse[*SS] = LastRefOrPartRef; } for (MCSubRegIterator SS(SubReg, TRI); SS.isValid(); ++SS) @@ -445,8 +445,8 @@ void LiveVariables::HandlePhysRegDef(unsigned Reg, MachineInstr *MI, // What parts of the register are previously defined? SmallSet<unsigned, 32> Live; if (PhysRegDef[Reg] || PhysRegUse[Reg]) { - Live.insert(Reg); - for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs) + for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true); + SubRegs.isValid(); ++SubRegs) Live.insert(*SubRegs); } else { for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs) { @@ -460,8 +460,8 @@ void LiveVariables::HandlePhysRegDef(unsigned Reg, MachineInstr *MI, if (Live.count(SubReg)) continue; if (PhysRegDef[SubReg] || PhysRegUse[SubReg]) { - Live.insert(SubReg); - for (MCSubRegIterator SS(SubReg, TRI); SS.isValid(); ++SS) + for (MCSubRegIterator SS(SubReg, TRI, /*IncludeSelf=*/true); + SS.isValid(); ++SS) Live.insert(*SS); } } @@ -488,9 +488,8 @@ void LiveVariables::UpdatePhysRegDefs(MachineInstr *MI, while (!Defs.empty()) { unsigned Reg = Defs.back(); Defs.pop_back(); - PhysRegDef[Reg] = MI; - PhysRegUse[Reg] = NULL; - for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs) { + for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true); + SubRegs.isValid(); ++SubRegs) { unsigned SubReg = *SubRegs; PhysRegDef[SubReg] = MI; PhysRegUse[SubReg] = NULL; |