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Re: [dj@delorie.com: Results for 4.4.0 20080612 (experimental) [trunk revision 136692] (GCC) testsuite on m32c-unknown-elf]
- From: DJ Delorie <dj at redhat dot com>
- To: Richard Guenther <rguenther at suse dot de>
- Cc: gcc at gcc dot gnu dot org
- Date: Fri, 13 Jun 2008 20:25:37 -0400
- Subject: Re: [dj@delorie.com: Results for 4.4.0 20080612 (experimental) [trunk revision 136692] (GCC) testsuite on m32c-unknown-elf]
- References: <200806121849.m5CInl9C003391@greed.delorie.com>
> I should start posting these to the testing list. Lots of m16c
> improvements, but some m32c regressions. I haven't tried to diagnose
> these yet, but if nobody claims it's their fault I will ;-)
>
> Anyone know why the regressions happened?
>
> PASS-FAIL: gcc.c-torture/execute/builtins/vsprintf-chk.c execution, -O3 -fomit-frame-pointer
> PASS-FAIL: gcc.c-torture/execute/builtins/vsprintf-chk.c execution, -O3 -fomit-frame-pointer -funroll-loops
> PASS-FAIL: gcc.c-torture/execute/builtins/vsprintf-chk.c execution, -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions
> PASS-FAIL: gcc.c-torture/execute/builtins/vsprintf-chk.c execution, -O3 -g
FYI I tracked this down to this patch (r136679):
2008-06-11 Richard Guenther <rguenther@suse.de>
* alias.c (get_alias_set): Use the element alias-set for arrays.
(record_component_aliases): For arrays and vectors do nothing.
* c-common.c (strict_aliasing_warning): Handle the cases
of alias set zero explicitly.
* Makefile.in (dfp.o-warn): Add -Wno-error.
Before the patch, -mcpu=m16c had execute failures for this test.
After, -mcpu=m32c had execute failures. The problem is in the way
newlib is compiled, not the test case itself.
Richard, do you want me to try to track this down further, or is this
enough for you to figure out what's happening?