[LLVMbugs] [Bug 395] NEW: [llvm-gcc] internal flag for Construct On First Use should be char

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.cs.uiuc.edu/bugs/show_bug.cgi?id=395

           Summary: [llvm-gcc] internal flag for Construct On First Use
                    should be char
           Product: tools
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: llvm-gcc
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: markus at oberhumer.com


Currently the internal flag (ltmp_0_25 below) for static objects seems to be a
"llvm-long" where a char would suffice. Consider this example:

struct MyObject {
    MyObject();
};
MyObject& get() {
    static MyObject obj;    // construct on first use
    return obj;
}

translation --->

/* Global Variable Definitions and Initialization */
static signed long long ltmp_0_25;
static struct l_unnamed0 ltmp_1_26;

/* Function Bodies */
struct l_unnamed0 *_Z3getv(void) {
  signed char ltmp_2_3;

  ltmp_2_3 = *((signed char *)(&ltmp_0_25));
  if ((ltmp_2_3 == 0)) {
    goto ltmp_3_13;
  } else {
    goto ltmp_4_13;
  }

ltmp_3_13:
  _ZN8MyObjectC1Ev((&ltmp_1_26));
  *((signed char *)(&ltmp_0_25)) = 1;
  return (&ltmp_1_26);
ltmp_4_13:
  return (&ltmp_1_26);
}



------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.