[LLVMbugs] [Bug 21656] New: Incorrect error on undeclared variable use

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=21656

            Bug ID: 21656
           Summary: Incorrect error on undeclared variable use
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: Matthew.Arsenault at amd.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Using r222680

int main(int argc, char *argv[])
{
    float x = 1.0f;
    x = (float) arst;
}


This produces the unhelpful error:
error: operand of type '<dependent type>' where arithmetic or pointer type is
required
1 error generated.

which doesn't even include a line number.

clang 3.4 produces the correct error:
clang_warning_bug.c:5:17: error: use of undeclared identifier 'arst'
    x = (float) arst;
                ^
1 error generated.

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