[LLVMbugs] [Bug 17639] New: alias attribute produces a definition

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=17639

            Bug ID: 17639
           Summary: alias attribute produces a definition
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: rafael.espindola at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

gcc rejects

void foo(void) __attribute((alias("__foo")));
void foo(void) {
}
void __foo(void) {}

with 

test.c:21:6: error: redefinition of ‘foo’
 void foo(void) {
      ^
test.c:20:6: note: previous definition of ‘foo’ was here
 void foo(void) __attribute((alias("__foo")));
      ^

We should reject it too.

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