[LLVMbugs] [Bug 21824] New: [fuzz] Assertion `getSubExpr()->getType()->isAnyPointerType() && !getSubExpr()->getType()->isBlockPointerType()' failed.

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=21824

            Bug ID: 21824
           Summary: [fuzz] Assertion
                    `getSubExpr()->getType()->isAnyPointerType() &&
                    !getSubExpr()->getType()->isBlockPointerType()'
                    failed.
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: sami.liedes at iki.fi
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 13465
  --> http://llvm.org/bugs/attachment.cgi?id=13465&action=edit
test case

Fuzzing discovered that the attached test case, when given as input to

  clang -fno-crash-diagnostics -std=c++11 -xc++ -c -emit-llvm

causes this assertion failure:

is-block-pointer-type.cpp:1:6: error: blocks support disabled - compile with
-fblocks or pick a deployment target that supports them
int (^a) () = (int) Z
     ^
clang-3.6: tools/clang/lib/AST/Expr.cpp:1489: bool
clang::CastExpr::CastConsistency() const: Assertion
`getSubExpr()->getType()->isAnyPointerType() &&
!getSubExpr()->getType()->isBlockPointerType()' failed.

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