Extended Description

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