[LLVMbugs] [Bug 12811] New: Error recovery can trigger Assertion `getResultKind() == Found && "getFoundDecl called on non-unique result"'

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=12811

             Bug #: 12811
           Summary: Error recovery can trigger Assertion `getResultKind()
                    == Found && "getFoundDecl called on non-unique
                    result"'
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: hfinkel at anl.gov
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Created attachment 8544
  --> http://llvm.org/bugs/attachment.cgi?id=8544
reduced test case (provided by Craig Schroeder)

Running clang trunk on the following C code:

a(&p);a(p);a(&p);

results in:

t6.c:1:3: error: expected parameter declarator
a(&p);a(p);a(&p);
  ^
t6.c:1:3: error: expected ')'
t6.c:1:2: note: to match this '('
a(&p);a(p);a(&p);
 ^
t6.c:1:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
a(&p);a(p);a(&p);
^
t6.c:1:7: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
a(&p);a(p);a(&p);
      ^
t6.c:1:9: error: a parameter list without types is only allowed in a function
definition
a(&p);a(p);a(&p);
        ^
t6.c:1:14: error: expected parameter declarator
a(&p);a(p);a(&p);
             ^
t6.c:1:14: error: expected ')'
t6.c:1:13: note: to match this '('
a(&p);a(p);a(&p);
            ^
t6.c:1:12: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
a(&p);a(p);a(&p);
           ^
clang:
/src/llvm-trunk-writable/tools/clang/lib/Sema/../../include/clang/Sema/Lookup.h:432:
clang::NamedDecl* clang::LookupResult::getFoundDecl() const: Assertion
`getResultKind() == Found && "getFoundDecl called on non-unique result"'
failed.

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