在 2024-01-13星期六的 15:28 +0800，chenxiaolong写道：
> gcc/testsuite/ChangeLog:
>
> * gcc.dg/pr104992.c: Added additional "-mlsx" compilation options.
> * gcc.dg/signbit-2.c: Dito.
> * gcc.dg/tree-ssa/scev-16.c: Dito.
> * gfortran.dg/graphite/vect-pr40979.f90: Dito.
> * gfortran.dg/vect/fast-math-mgrid-resid.f: Dito.
I don't feel it right about the changes to pr104992.c and scev-16.c
because no other architectures add special options there. Why are we
so special?
> ---
> gcc/testsuite/gcc.dg/pr104992.c | 1 +
> gcc/testsuite/gcc.dg/signbit-2.c | 1 +
> gcc/testsuite/gcc.dg/tree-ssa/scev-16.c | 1 +
> gcc/testsuite/gfortran.dg/graphite/vect-pr40979.f90 | 1 +
> gcc/testsuite/gfortran.dg/vect/fast-math-mgrid-resid.f | 1 +
> 5 files changed, 5 insertions(+)
>
> diff --git a/gcc/testsuite/gcc.dg/pr104992.c b/gcc/testsuite/gcc.dg/pr104992.c
> index 82f8c75559c..a77992fa491 100644
> --- a/gcc/testsuite/gcc.dg/pr104992.c
> +++ b/gcc/testsuite/gcc.dg/pr104992.c
> @@ -1,6 +1,7 @@
> /* PR tree-optimization/104992 */
> /* { dg-do compile } */
> /* { dg-options "-O2 -Wno-psabi -fdump-tree-optimized" } */
> +/* { dg-additional-options "-mlsx" { target loongarch_sx } } */
>
> #define vector __attribute__((vector_size(4*sizeof(int))))
>
> diff --git a/gcc/testsuite/gcc.dg/signbit-2.c
> b/gcc/testsuite/gcc.dg/signbit-2.c
> index 62bb4047d74..5511bb78149 100644
> --- a/gcc/testsuite/gcc.dg/signbit-2.c
> +++ b/gcc/testsuite/gcc.dg/signbit-2.c
> @@ -5,6 +5,7 @@
> /* { dg-additional-options "-msse2 -mno-avx512f" { target { i?86-*-*
> x86_64-*-* } } } */
> /* { dg-additional-options "-march=armv8-a" { target aarch64_sve } } */
> /* { dg-additional-options "-maltivec" { target powerpc_altivec_ok } } */
> +/* { dg-additional-options "-mlsx" { target loongarch_sx } } */
> /* { dg-skip-if "no fallback for MVE" { arm_mve } } */
>
> #include <stdint.h>
> diff --git a/gcc/testsuite/gcc.dg/tree-ssa/scev-16.c
> b/gcc/testsuite/gcc.dg/tree-ssa/scev-16.c
> index 120f40c0b6c..06cfbbcfae5 100644
> --- a/gcc/testsuite/gcc.dg/tree-ssa/scev-16.c
> +++ b/gcc/testsuite/gcc.dg/tree-ssa/scev-16.c
> @@ -1,6 +1,7 @@
> /* { dg-do compile } */
> /* { dg-require-effective-target vect_int } */
> /* { dg-options "-O2 -ftree-vectorize -fdump-tree-vect-details" } */
> +/* { dg-additional-options "-mlsx" { target { loongarch*-*-* } } } */
>
> int A[1024 * 2];
>
> diff --git a/gcc/testsuite/gfortran.dg/graphite/vect-pr40979.f90
> b/gcc/testsuite/gfortran.dg/graphite/vect-pr40979.f90
> index a42290948c4..6f2ad1166a4 100644
> --- a/gcc/testsuite/gfortran.dg/graphite/vect-pr40979.f90
> +++ b/gcc/testsuite/gfortran.dg/graphite/vect-pr40979.f90
> @@ -1,6 +1,7 @@
> ! { dg-do compile }
> ! { dg-require-effective-target vect_double }
> ! { dg-additional-options "-msse2" { target { { i?86-*-* x86_64-*-* } &&
> ilp32 } } }
> +! { dg-additional-options "-mlsx" { target { loongarch*-*-* } } }
>
> module mqc_m
> integer, parameter, private :: longreal = selected_real_kind(15,90)
> diff --git a/gcc/testsuite/gfortran.dg/vect/fast-math-mgrid-resid.f
> b/gcc/testsuite/gfortran.dg/vect/fast-math-mgrid-resid.f
> index 08965cc5e20..97b88821731 100644
> --- a/gcc/testsuite/gfortran.dg/vect/fast-math-mgrid-resid.f
> +++ b/gcc/testsuite/gfortran.dg/vect/fast-math-mgrid-resid.f
> @@ -2,6 +2,7 @@
> ! { dg-require-effective-target vect_double }
> ! { dg-options "-O3 --param vect-max-peeling-for-alignment=0
> -fpredictive-commoning -fdump-tree-pcom-details -std=legacy" }
> ! { dg-additional-options "-mprefer-avx128" { target { i?86-*-* x86_64-*-* }
> } }
> +! { dg-additional-options "-mlsx" { target { loongarch*-*-* } } }
> ! { dg-additional-options "-mzarch" { target { s390*-*-* } } }
>
> ******* RESID COMPUTES THE RESIDUAL: R = V - AU
--
Xi Ruoyao <xry...@xry111.site>
School of Aerospace Science and Technology, Xidian University
