https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51744
Alan Modra changed:
What|Removed |Added
Status|NEW |RESOLVED
CC|
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51744
--- Comment #10 from Richard Biener ---
It's a GNU ld bug I believe.
https://sourceware.org/bugzilla/show_bug.cgi?id=16746
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51744
--- Comment #9 from Mark Pizzolato ---
> When val == 0 then the case of len == 0 is ambiguous and you can't really
tell the user they swapped val and len (because they are equal).
That is certainly true.
I'm not sure how that specifically relate
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51744
--- Comment #8 from Richard Biener ---
(In reply to Mark Pizzolato from comment #7)
> Thanks for reducing this test case further. That illuminates something for
> me:
>
> Specifically:
>
> Notice in the following lines:
>
> if (__builtin_con
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51744
--- Comment #7 from Mark Pizzolato ---
Thanks for reducing this test case further. That illuminates something for me:
Specifically:
Notice in the following lines:
if (__builtin_constant_p (__len) && __len == 0
&& (!__builtin_constant_p
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51744
--- Comment #6 from Richard Biener ---
Btw, it works when using gold ...
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51744
Richard Biener changed:
What|Removed |Added
Known to fail||4.7.3, 4.8.3, 4.9.0
Severity|n
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51744
--- Comment #5 from Richard Biener ---
It also (sadly) means this "works" with -fno-use-linker-plugin. It also means
that not outputting the UNDEF into the LTO symbol table for this case doesn't
work as the executable will not link (we optimize t
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51744
--- Comment #4 from Richard Biener ---
typedef __SIZE_TYPE__ size_t;
extern void *memset (void *__s, int __c, size_t __n) __attribute__
((__nothrow__)) __attribute__ ((__nonnull__ (1)));
extern void __warn_memset_zero_len (void) __attribute__((__w
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51744
Mark Pizzolato changed:
What|Removed |Added
CC||mark at infocomm dot com
--- C
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51744
--- Comment #2 from Mark Pizzolato 2012-10-23
16:42:06 UTC ---
Created attachment 28514
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28514
MUCH simpler test case
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51744
Richard Guenther changed:
What|Removed |Added
Keywords||diagnostic, lto
Status|UNC
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