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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-08-31 19:54:25 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-08-31 19:54:25 +0000 |
| commit | 9d4b51b696e27b9c061955d4c76f9dbff529b143 (patch) | |
| tree | 75cdd208fb945fdb84b69c899393a5a0bb9343a1 /lib | |
| parent | 81b79b5fa808730d102cdc4b60a52e602d425de5 (diff) | |
Ignore unallocatable registers in RegAllocFast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112632 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/RegAllocFast.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp index 8f6496dcac..237686859f 100644 --- a/lib/CodeGen/RegAllocFast.cpp +++ b/lib/CodeGen/RegAllocFast.cpp @@ -736,7 +736,8 @@ void RAFast::AllocateBasicBlock() { // Add live-in registers as live. for (MachineBasicBlock::livein_iterator I = MBB->livein_begin(), E = MBB->livein_end(); I != E; ++I) - definePhysReg(MII, *I, regReserved); + if (Allocatable.test(*I)) + definePhysReg(MII, *I, regReserved); SmallVector<unsigned, 8> VirtDead; SmallVector<MachineInstr*, 32> Coalesced; |