[llvm-commits] [llvm] r140027 - /llvm/trunk/lib/MC/MCInstrAnalysis.cpp

[Benjamin Kramer]

Author: d0k
Date: Mon Sep 19 12:56:00 2011
New Revision: 140027

URL: http://llvm.org/viewvc/llvm-project?rev=140027&view=rev
Log:
MCInstrAnalysis: Don't crash on instructions with no operands.

Modified:
    llvm/trunk/lib/MC/MCInstrAnalysis.cpp

Modified: llvm/trunk/lib/MC/MCInstrAnalysis.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCInstrAnalysis.cpp?rev=140027&r1=140026&r2=140027&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCInstrAnalysis.cpp (original)
+++ llvm/trunk/lib/MC/MCInstrAnalysis.cpp Mon Sep 19 12:56:00 2011
@@ -12,7 +12,8 @@
 
 uint64_t MCInstrAnalysis::evaluateBranch(const MCInst &Inst, uint64_t Addr,
                                          uint64_t Size) const {
-  if (Info->get(Inst.getOpcode()).OpInfo[0].OperandType != MCOI::OPERAND_PCREL)
+  if (Inst.getNumOperands() == 0 ||
+      Info->get(Inst.getOpcode()).OpInfo[0].OperandType != MCOI::OPERAND_PCREL)
     return -1ULL;
 
   int64_t Imm = Inst.getOperand(0).getImm();