[llvm-commits] [llvm] r151211 - /llvm/trunk/lib/CodeGen/ScheduleDAGInstrs.cpp

Jakob Stoklund Olesen stoklund at 2pi.dk
Wed Feb 22 14:52:52 PST 2012


Author: stoklund
Date: Wed Feb 22 16:52:52 2012
New Revision: 151211

URL: http://llvm.org/viewvc/llvm-project?rev=151211&view=rev
Log:
Don't compute latencies for regmask operands.

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

Modified: llvm/trunk/lib/CodeGen/ScheduleDAGInstrs.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/ScheduleDAGInstrs.cpp?rev=151211&r1=151210&r2=151211&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/ScheduleDAGInstrs.cpp (original)
+++ llvm/trunk/lib/CodeGen/ScheduleDAGInstrs.cpp Wed Feb 22 16:52:52 2012
@@ -737,7 +737,9 @@
       //   %Q1<def> = VMULv8i16 %Q1<kill>, %Q3<kill>, ...
       // What we want is to compute latency between def of %D6/%D7 and use of
       // %Q3 instead.
-      DefIdx = DefMI->findRegisterDefOperandIdx(Reg, false, true, TRI);
+      unsigned Op2 = DefMI->findRegisterDefOperandIdx(Reg, false, true, TRI);
+      if (DefMI->getOperand(Op2).isReg())
+        DefIdx = Op2;
     }
     MachineInstr *UseMI = Use->getInstr();
     // For all uses of the register, calculate the maxmimum latency





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