[PATCH] D30295: [analyzer] clarify undef shift result when shift count is negative or exceeds the bit width

Gábor Horváth via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Wed Apr 26 07:09:56 PDT 2017


xazax.hun added a comment.

I only found two nits otherwise looks good to me.



================
Comment at: include/clang/StaticAnalyzer/Core/PathSensitive/CheckerHelpers.h:46
 
+bool exprComparesTo(SVal LHSVal, BinaryOperatorKind ComparisonOp, SVal RHSVal,
+                    ProgramStateRef State);
----------------
Right now the name of this function is exprComparesTo, but none of its arguments are expressions. You should either rename it to svalComparesTo, or use expr as its arguments. 


================
Comment at: lib/StaticAnalyzer/Core/CheckerHelpers.cpp:116
+    return false;
+  ConstraintManager &CM = State->getConstraintManager();
+  ProgramStateRef StTrue, StFalse;
----------------
Any reason why do you get the constraint manager and not using ProgramState::assume?


Repository:
  rL LLVM

https://reviews.llvm.org/D30295





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