[llvm-commits] [llvm] r157702 - /llvm/trunk/lib/CodeGen/MachineInstr.cpp

[Jakob Stoklund Olesen]

Author: stoklund
Date: Wed May 30 13:38:56 2012
New Revision: 157702

URL: http://llvm.org/viewvc/llvm-project?rev=157702&view=rev
Log:
Remove some redundant tests.

An empty list is not represented as a null pointer. Let TRI do its own
shortcuts.

Modified:
    llvm/trunk/lib/CodeGen/MachineInstr.cpp

Modified: llvm/trunk/lib/CodeGen/MachineInstr.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/MachineInstr.cpp?rev=157702&r1=157701&r2=157702&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/MachineInstr.cpp (original)
+++ llvm/trunk/lib/CodeGen/MachineInstr.cpp Wed May 30 13:38:56 2012
@@ -1766,9 +1766,7 @@
       // There exists a super-register that's marked dead.
       if (RegInfo->isSuperRegister(IncomingReg, Reg))
         return true;
-      if (RegInfo->getSubRegisters(IncomingReg) &&
-          RegInfo->getSuperRegisters(Reg) &&
-          RegInfo->isSubRegister(IncomingReg, Reg))
+      if (RegInfo->isSubRegister(IncomingReg, Reg))
         DeadOps.push_back(i);
     }
   }