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Re: [PATCH lto]Fix the mis-matched arguments of lto_define_builtins


On Fri, Aug 8, 2014 at 10:05 AM, Bin.Cheng <amker.cheng@gmail.com> wrote:
> On Thu, Aug 7, 2014 at 8:06 PM, Richard Biener
> <richard.guenther@gmail.com> wrote:
>> On Thu, Aug 7, 2014 at 11:46 AM, Bin Cheng <bin.cheng@arm.com> wrote:
>>> Hi,
>>> As analyzed in PR62032, this patch fixes the latent lto bug by switching
>>> arguments of lto_define_builtins, otherwise vsnprintf-chk.c would fail on
>>> arm/aarch64 with lto options.
>>>
>>> Is it ok if bootstrap and test pass?
>>
>> Ok (would be nice if you can check if LTO bootstrap still works).
> Done.  Bootstrap with "--with-build-config=bootstrap-lto" works fine.
> I will commit this to trunk and wait for couple of days before
> back-port to 4_9 branch.  Is that OK?

Sure.

> BTW, I found GCC trunk@213701 failed when building ada with below ICE
> message, so I have to do the bootstrap with ada disabled.

Heh - I usually do LTO bootstrap only for c,c++,fortran as otherwise it
takes ages... ;)

Richard.

> ../../gcc/gcc/ada/exp_ch3.adb: In function 'exp_ch3__get_simple_init_val':
> ../../gcc/gcc/ada/exp_ch3.adb:7695:4: internal compiler error: in
> forward_edge_to_pdom, at tree-ssa-dce.c:1042
>     function Get_Simple_Init_Val
>     ^
> 0xc23a8d forward_edge_to_pdom
> ../../gcc/gcc/tree-ssa-dce.c:1042
> 0xc23c21 remove_dead_stmt
> ../../gcc/gcc/tree-ssa-dce.c:1091
> 0xc24120 eliminate_unnecessary_stmts
> ../../gcc/gcc/tree-ssa-dce.c:1218
> 0xc24b23 perform_tree_ssa_dce
> ../../gcc/gcc/tree-ssa-dce.c:1460
> 0xc24c1c tree_ssa_cd_dce
> ../../gcc/gcc/tree-ssa-dce.c:1501
> 0xc24d86 execute
> ../../gcc/gcc/tree-ssa-dce.c:1566
> Please submit a full bug report,
> with preprocessed source if appropriate.
> Please include the complete backtrace with any bug report.
> See <http://gcc.gnu.org/bugs.html> for instructions.
> make[4]: *** [/tmp/cc4oj0WO.ltrans1.ltrans.o] Error 1
> lto-wrapper: fatal error: make returned 2 exit status
> compilation terminated.
> /usr/bin/ld: lto-wrapper failed
> collect2: error: ld returned 1 exit status
> make[3]: *** [gnat1] Error 1
> make[3]: *** Waiting for unfinished jobs....
>
> Thanks,
> bin


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