[LLVMbugs] [Bug 4518] New: weakref emits undef symbol

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=4518

           Summary: weakref emits undef symbol
           Product: tools
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: llvm-gcc
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: nicholas at mxc.ca
                CC: llvmbugs at cs.uiuc.edu, nlewycky at google.com


Consider this program short C program:

  int target_func(unsigned long);
  static int bad_func(unsigned long)
__attribute__((__weakref__("target_func")));
  extern void foo(int);

  void user() {
    if (bad_func) {
      foo(0);
    } else {
      foo(1);
    }
  }

This emits to LLVM @bad_func = alias weak ... @target_func and the @user
function references @bad_func. Instead the frontend should turn references to
@bad_func into references to @target_func and never emit the name 'bad_func' to
the LLVM IR.


-- 
Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.