[llvm-branch-commits] [llvm] e9f401d - [IR] CallBase::getBundleOpInfoForOperand - ensure Current iterator is defined. NFCI.

[Simon Pilgrim via llvm-branch-commits]

Author: Simon Pilgrim
Date: 2021-01-04T15:30:15Z
New Revision: e9f401d8a261e747f5dfc9e297f12ab26e56893d

URL: https://github.com/llvm/llvm-project/commit/e9f401d8a261e747f5dfc9e297f12ab26e56893d
DIFF: https://github.com/llvm/llvm-project/commit/e9f401d8a261e747f5dfc9e297f12ab26e56893d.diff

LOG: [IR] CallBase::getBundleOpInfoForOperand - ensure Current iterator is defined. NFCI.

Fix clang static analyzer undefined pointer warning in the case Begin == End.

Added: 
    

Modified: 
    llvm/lib/IR/Instructions.cpp

Removed: 
    


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diff  --git a/llvm/lib/IR/Instructions.cpp b/llvm/lib/IR/Instructions.cpp
index 47bf3966bc27..d6b4a4f5030f 100644
--- a/llvm/lib/IR/Instructions.cpp
+++ b/llvm/lib/IR/Instructions.cpp
@@ -400,7 +400,7 @@ CallBase::BundleOpInfo &CallBase::getBundleOpInfoForOperand(unsigned OpIdx) {
 
   bundle_op_iterator Begin = bundle_op_info_begin();
   bundle_op_iterator End = bundle_op_info_end();
-  bundle_op_iterator Current;
+  bundle_op_iterator Current = Begin;
 
   while (Begin != End) {
     unsigned ScaledOperandPerBundle =