This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug c/46619] gcc thinks line of code can be removed.
- From: "hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 23 Nov 2010 18:06:39 +0000
- Subject: [Bug c/46619] gcc thinks line of code can be removed.
- Auto-submitted: auto-generated
- References: <bug-46619-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46619
--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> 2010-11-23 18:06:37 UTC ---
(In reply to comment #3)
> (In reply to comment #2)
> > Do you have a run-time testcase?
>
> There is a test you can run in v_prime.c , it should fail to set the high bit
It won't link:
[hjl@gnu-35 pr46619]$ gcc -O2 v_bignum.c
/usr/lib/gcc/x86_64-redhat-linux/4.5.1/../../../../lib64/crt1.o: In function
`_start':
(.text+0x20): undefined reference to `main'
/tmp/ccaJLFo2.o: In function `v_bignum_set_random':
v_bignum.c:(.text+0x25c): undefined reference to `v_randgen_new'
v_bignum.c:(.text+0x276): undefined reference to `v_randgen_get'
v_bignum.c:(.text+0x232): undefined reference to `v_randgen_get'
v_bignum.c:(.text+0x290): undefined reference to `v_randgen_destroy'
collect2: ld returned 1 exit status