On Mon, Mar 21, 2022 at 10:10 PM H.J. Lu <hjl.to...@gmail.com> wrote:
>
> SSE and AVX ISAs in ISA2 should be disabled for -mgeneral-regs-only.
>
> gcc/
>
> PR target/105000
> * common/config/i386/i386-common.cc
> (OPTION_MASK_ISA2_GENERAL_REGS_ONLY_UNSET): Also disable SSE
> and AVX.
>
> gcc/testsuite/
>
> PR target/105000
> * gcc.target/i386/pr105000-1.c: New test.
> * gcc.target/i386/pr105000-2.c: Likewise.
> * gcc.target/i386/pr105000-3.c: Likewise.
> ---
> gcc/common/config/i386/i386-common.cc | 4 +++-
> gcc/testsuite/gcc.target/i386/pr105000-1.c | 11 +++++++++++
> gcc/testsuite/gcc.target/i386/pr105000-2.c | 11 +++++++++++
> gcc/testsuite/gcc.target/i386/pr105000-3.c | 11 +++++++++++
> 4 files changed, 36 insertions(+), 1 deletion(-)
> create mode 100644 gcc/testsuite/gcc.target/i386/pr105000-1.c
> create mode 100644 gcc/testsuite/gcc.target/i386/pr105000-2.c
> create mode 100644 gcc/testsuite/gcc.target/i386/pr105000-3.c
>
> diff --git a/gcc/common/config/i386/i386-common.cc
> b/gcc/common/config/i386/i386-common.cc
> index 449df6351c9..b77d495e9a4 100644
> --- a/gcc/common/config/i386/i386-common.cc
> +++ b/gcc/common/config/i386/i386-common.cc
> @@ -321,7 +321,9 @@ along with GCC; see the file COPYING3. If not see
> | OPTION_MASK_ISA2_AVX512VP2INTERSECT_UNSET \
> | OPTION_MASK_ISA2_AVX512FP16_UNSET)
> #define OPTION_MASK_ISA2_GENERAL_REGS_ONLY_UNSET \
> - (OPTION_MASK_ISA2_AVX512F_UNSET)
> + (OPTION_MASK_ISA2_SSE_UNSET \
> + | OPTION_MASK_ISA2_AVX_UNSET \
> + | OPTION_MASK_ISA2_AVX512F_UNSET)
The above should only need OPTION_MASK_ISA2_SSE_UNSET, other options
follow from #define chain.
Uros.
> #define OPTION_MASK_ISA2_AVX_UNSET OPTION_MASK_ISA2_AVX2_UNSET
> #define OPTION_MASK_ISA2_SSE4_2_UNSET OPTION_MASK_ISA2_AVX_UNSET
> #define OPTION_MASK_ISA2_SSE4_1_UNSET OPTION_MASK_ISA2_SSE4_2_UNSET
> diff --git a/gcc/testsuite/gcc.target/i386/pr105000-1.c
> b/gcc/testsuite/gcc.target/i386/pr105000-1.c
> new file mode 100644
> index 00000000000..020e2adca83
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/i386/pr105000-1.c
> @@ -0,0 +1,11 @@
> +/* { dg-do compile } */
> +/* { dg-options "-O2 -mshstk -mavxvnni" } */
> +
> +#include <x86gprintrin.h>
> +
> +__attribute__((target("no-mmx,no-sse")))
> +int
> +foo ()
> +{
> + return _get_ssp ();
> +}
> diff --git a/gcc/testsuite/gcc.target/i386/pr105000-2.c
> b/gcc/testsuite/gcc.target/i386/pr105000-2.c
> new file mode 100644
> index 00000000000..a113fd1dfa2
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/i386/pr105000-2.c
> @@ -0,0 +1,11 @@
> +/* { dg-do compile } */
> +/* { dg-options "-O2 -mshstk -mkl" } */
> +
> +#include <x86gprintrin.h>
> +
> +__attribute__((target("no-mmx,no-sse")))
> +int
> +foo ()
> +{
> + return _get_ssp ();
> +}
> diff --git a/gcc/testsuite/gcc.target/i386/pr105000-3.c
> b/gcc/testsuite/gcc.target/i386/pr105000-3.c
> new file mode 100644
> index 00000000000..7e82925270c
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/i386/pr105000-3.c
> @@ -0,0 +1,11 @@
> +/* { dg-do compile } */
> +/* { dg-options "-O2 -mshstk -mwidekl" } */
> +
> +#include <x86gprintrin.h>
> +
> +__attribute__((target("no-mmx,no-sse")))
> +int
> +foo ()
> +{
> + return _get_ssp ();
> +}
> --
> 2.35.1
>
