ubsan: Add checking for invalid downcasts. Per [expr.static.cast]p2 and p11,
base-to-derived casts have undefined behavior if the object is not actually an instance of the derived type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175078 91177308-0d34-0410-b5e6-96231b3b80d8
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- lib/CodeGen/CGClass.cpp 1 addition, 1 deletionlib/CodeGen/CGClass.cpp
- lib/CodeGen/CGExpr.cpp 25 additions, 2 deletionslib/CodeGen/CGExpr.cpp
- lib/CodeGen/CGExprScalar.cpp 9 additions, 1 deletionlib/CodeGen/CGExprScalar.cpp
- lib/CodeGen/CodeGenFunction.h 7 additions, 1 deletionlib/CodeGen/CodeGenFunction.h
- test/CodeGenCXX/catch-undef-behavior.cpp 46 additions, 0 deletionstest/CodeGenCXX/catch-undef-behavior.cpp
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