[LLVMbugs] [Bug 1088] NEW: getOrInsertFunction is unsafe and broken

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=1088

           Summary: getOrInsertFunction is unsafe and broken
           Product: tools
           Version: 1.0
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: lli
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: sabre at nondot.org


Consider this program:

#include <stdio.h>
static void exit(int X) {
  printf("myexit called\n");
}
int main() {
  exit(1);
}

This should print 'myexit called' once.  However:

$ llvm-gcc -c -emit-llvm t.c
$ lli t.o
myexit called
myexit called
ERROR: exit(-1073744072) returned!
Abort

This is due to the failures of the Module::getOrInsertFunction method.

-Chris



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