[r15-3000 Regression] FAIL: gcc.target/i386/avx10_2-rounding-3.c (test for excess errors) on Linux/x86_64

[Jiang, Haochen]

The three avx10.2 related test regression are all related to the usage of
-mavx10.2 -march=cascadelake, which is unavoidable warning.

I am considering to change -march=cascadelake to a arch with AVX10 in
the future to avoid these false alarms.

Thx,
Haochen

> -----Original Message-----
> From: haochen.jiang <haochenj@smtp.intel.com>
> Sent: Tuesday, August 20, 2024 11:59 PM
> To: Hu, Lin1 <lin1.hu@intel.com>; gcc-regression@gcc.gnu.org; gcc-
> patches@gcc.gnu.org; Jiang, Haochen <haochen.jiang@intel.com>
> Subject: [r15-3000 Regression] FAIL: gcc.target/i386/avx10_2-rounding-3.c
> (test for excess errors) on Linux/x86_64
> 
> On Linux/x86_64,
> 
> 3d1b5530ea1d23e26dc5ab70aa4a2e7b9dc19b50 is the first bad commit
> commit 3d1b5530ea1d23e26dc5ab70aa4a2e7b9dc19b50
> Author: Hu, Lin1 <lin1.hu@intel.com>
> Date:   Mon Aug 19 10:09:03 2024 +0800
> 
>     AVX10.2 ymm rounding: Support vcvt{,u}w2ph and vdivp{s,d,h} intrins
> 
> caused
> 
> FAIL: gcc.target/i386/avx10_2-rounding-3.c (test for excess errors)
> 
> with GCC configured with
> 
> ../../gcc/configure --prefix=/export/users/haochenj/src/gcc-
> bisect/master/master/r15-3000/usr --enable-clocale=gnu --with-system-zlib -
> -with-demangler-in-ld --with-fpmath=sse --enable-languages=c,c++,fortran --
> enable-cet --without-isl --enable-libmpx x86_64-linux --disable-bootstrap
> 
> To reproduce:
> 
> $ cd {build_dir}/gcc && make check
> RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-rounding-3.c --
> target_board='unix{-m32\ -march=cascadelake}'"
> $ cd {build_dir}/gcc && make check
> RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-rounding-3.c --
> target_board='unix{-m64\ -march=cascadelake}'"
> 
> (Please do not reply to this email, for question about this report, contact me at
> haochen dot jiang at intel.com.) (If you met problems with cascadelake
> related, disabling AVX512F in command line might save that.) (However,
> please make sure that there is no potential problems with AVX512.)