diff options
| author | Matthias Braun <matze@braunis.de> | 2015-07-15 22:16:00 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2015-07-15 22:16:00 +0000 |
| commit | 2aa5727755c86b61a5f985ea21b09d2cb2f25aa6 (patch) | |
| tree | 0ad504cea059d98959e1ecad9c14fc32262cf1ba /lib/CodeGen/RegAllocGreedy.cpp | |
| parent | 71da3635d95d4bfb8146e0f7f150ed285fb9990c (diff) | |
TargetRegisterInfo: Provide a way to check assigned registers in getRegAllocationHints()
Pass a const reference to LiveRegMatrix to getRegAllocationHints()
because some targets can prodive better hints if they can test whether a
physreg has been used for register allocation yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242340 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocGreedy.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocGreedy.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp index 7ebcf7f5485..9da86441767 100644 --- a/lib/CodeGen/RegAllocGreedy.cpp +++ b/lib/CodeGen/RegAllocGreedy.cpp @@ -637,7 +637,7 @@ unsigned RAGreedy::tryAssign(LiveInterval &VirtReg, //===----------------------------------------------------------------------===// unsigned RAGreedy::canReassign(LiveInterval &VirtReg, unsigned PrevReg) { - AllocationOrder Order(VirtReg.reg, *VRM, RegClassInfo); + AllocationOrder Order(VirtReg.reg, *VRM, RegClassInfo, Matrix); unsigned PhysReg; while ((PhysReg = Order.next())) { if (PhysReg == PrevReg) @@ -2450,7 +2450,7 @@ unsigned RAGreedy::selectOrSplitImpl(LiveInterval &VirtReg, unsigned Depth) { unsigned CostPerUseLimit = ~0u; // First try assigning a free register. - AllocationOrder Order(VirtReg.reg, *VRM, RegClassInfo); + AllocationOrder Order(VirtReg.reg, *VRM, RegClassInfo, Matrix); if (unsigned PhysReg = tryAssign(VirtReg, Order, NewVRegs)) { // When NewVRegs is not empty, we may have made decisions such as evicting // a virtual register, go with the earlier decisions and use the physical |