From 478a8a02bc0f2e739ed8f4240152e99837e480b9 Mon Sep 17 00:00:00 2001 From: Jakob Stoklund Olesen Date: Thu, 2 Feb 2012 23:52:57 +0000 Subject: Require non-NULL register masks. It doesn't seem worthwhile to give meaning to a NULL register mask pointer. It complicates all the code using register mask operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149646 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/DeadMachineInstructionElim.cpp | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'lib/CodeGen/DeadMachineInstructionElim.cpp') diff --git a/lib/CodeGen/DeadMachineInstructionElim.cpp b/lib/CodeGen/DeadMachineInstructionElim.cpp index aeb0b3ed02..020b64d883 100644 --- a/lib/CodeGen/DeadMachineInstructionElim.cpp +++ b/lib/CodeGen/DeadMachineInstructionElim.cpp @@ -175,10 +175,7 @@ bool DeadMachineInstructionElim::runOnMachineFunction(MachineFunction &MF) { } } else if (MO.isRegMask()) { // Register mask of preserved registers. All clobbers are dead. - if (const uint32_t *Mask = MO.getRegMask()) - LivePhysRegs.clearBitsNotInMask(Mask); - else - LivePhysRegs.reset(); + LivePhysRegs.clearBitsNotInMask(MO.getRegMask()); LivePhysRegs |= ReservedRegs; } } -- cgit v1.2.3-70-g09d2