https://sourceware.org/bugzilla/show_bug.cgi?id=26262
--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
[hjl@gnu-cfl-2 pr26262]$ cat pr26262a.c
#include <stdio.h>
int counter;
extern void foo (void);
extern void bar (void);
extern void xxx (void);
int
main(void)
{
bar ();
foo ();
xxx ();
if (counter == 1)
printf ("PASS\n");
return 0;
}
[hjl@gnu-cfl-2 pr26262]$ cat pr26262b.c
__attribute__ ((noinline))
void
bar (void)
{
}
[hjl@gnu-cfl-2 pr26262]$ cat pr26262c.c
#include <stdlib.h>
extern int counter;
void
foo (void)
{
counter++;
}
__attribute__((weak))
void
bar (void)
{
abort ();
}
[hjl@gnu-cfl-2 pr26262]$ cat pr26262d.c
extern void bar (void);
void
xxx (void)
{
bar ();
}
[hjl@gnu-cfl-2 pr26262]$ make
gcc -O2 -flto -c -o pr26262a.o pr26262a.c
gcc -O2 -flto -c -o pr26262b.o pr26262b.c
gcc -O2 -c -o pr26262c.o pr26262c.c
gcc -O2 -c -o pr26262d.o pr26262d.c
gcc -fuse-ld=bfd -O2 -o x pr26262a.o pr26262b.o pr26262c.o pr26262d.o
./x
make: *** [Makefile:11: all] Aborted (core dumped)
[hjl@gnu-cfl-2 pr26262]$
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