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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-05-11 20:30:28 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-05-11 20:30:28 +0000 |
| commit | 82b07dc4995d48065bd95affff4d8513a5cad4f2 (patch) | |
| tree | 6b6af716b38928b7be1e04fa7e0dceb3c1903251 /include/llvm/CodeGen/MachineRegisterInfo.h | |
| parent | d42718080f1f140726220563d741261fd7f661c5 (diff) | |
| download | external_llvm-82b07dc4995d48065bd95affff4d8513a5cad4f2.zip external_llvm-82b07dc4995d48065bd95affff4d8513a5cad4f2.tar.gz external_llvm-82b07dc4995d48065bd95affff4d8513a5cad4f2.tar.bz2 | |
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
Diffstat (limited to 'include/llvm/CodeGen/MachineRegisterInfo.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineRegisterInfo.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/llvm/CodeGen/MachineRegisterInfo.h b/include/llvm/CodeGen/MachineRegisterInfo.h index b377dec..905be96 100644 --- a/include/llvm/CodeGen/MachineRegisterInfo.h +++ b/include/llvm/CodeGen/MachineRegisterInfo.h @@ -229,11 +229,18 @@ public: /// setPhysRegUsed - Mark the specified register used in this function. /// This should only be called during and after register allocation. void setPhysRegUsed(unsigned Reg) { UsedPhysRegs[Reg] = true; } - + + /// addPhysRegsUsed - Mark the specified registers used in this function. + /// This should only be called during and after register allocation. + void addPhysRegsUsed(const BitVector &Regs) { UsedPhysRegs |= Regs; } + /// setPhysRegUnused - Mark the specified register unused in this function. /// This should only be called during and after register allocation. void setPhysRegUnused(unsigned Reg) { UsedPhysRegs[Reg] = false; } - + + /// closePhysRegsUsed - Expand UsedPhysRegs to its transitive closure over + /// subregisters. That means that if R is used, so are all subregisters. + void closePhysRegsUsed(const TargetRegisterInfo&); //===--------------------------------------------------------------------===// // LiveIn/LiveOut Management |