[llvm] b7165fd - [llvm][ARM] Fix bounds check after use in ARMAsmParser

[David Spickett via llvm-commits]

Author: David Spickett
Date: 2023-03-22T09:49:02Z
New Revision: b7165fdc7ecaa5fa77849066d4307d45ac026a9d

URL: https://github.com/llvm/llvm-project/commit/b7165fdc7ecaa5fa77849066d4307d45ac026a9d
DIFF: https://github.com/llvm/llvm-project/commit/b7165fdc7ecaa5fa77849066d4307d45ac026a9d.diff

LOG: [llvm][ARM] Fix bounds check after use in ARMAsmParser

Fixes #61605

Added: 
    

Modified: 
    llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 7ce9e04657c7d..e0bc431fd4bd8 100644
--- a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -11007,7 +11007,7 @@ unsigned ARMAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
     // Find the optional-def operand (cc_out).
     unsigned OpNo;
     for (OpNo = 0;
-         !MCID.operands()[OpNo].isOptionalDef() && OpNo < MCID.NumOperands;
+         OpNo < MCID.NumOperands && !MCID.operands()[OpNo].isOptionalDef();
          ++OpNo)
       ;
     // If we're parsing Thumb1, reject it completely.