On Wed, 2023-09-20 at 09:15 +0800, Chenghui Pan wrote:
> LoongArch failed to pass gcc.dg/pr104992.c with -mlsx and -mlasx. This test
> uses
> different dg-final directives depending on the vect_int_mod result, LoongArch
> SX/ASX supports this operations but corresponding description is not defined
> in
> target-supports.exp. This patch solves the problem above with some
> modification in proc check_effective_target_vect_int_mod.
I think we can just add -mdouble-float -mlasx into DEFAULT_VECTCFLAGS
and always enable vect_int_mod for LoongArch. This will make vect.exp
tests automatically run for every "make check" on LoongArch.
> gcc/testsuite/ChangeLog:
>
> * lib/target-supports.exp: Update check_effective_target_vect_int_mod
> according to
> LoongArch SX/ASX capabilities.
> ---
> gcc/testsuite/lib/target-supports.exp | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/gcc/testsuite/lib/target-supports.exp
> b/gcc/testsuite/lib/target-supports.exp
> index 2de41cef2f6..b253dc578d2 100644
> --- a/gcc/testsuite/lib/target-supports.exp
> +++ b/gcc/testsuite/lib/target-supports.exp
> @@ -8586,6 +8586,8 @@ proc check_effective_target_vect_int_mod { } {
> return [check_cached_effective_target_indexed vect_int_mod {
> expr { ([istarget powerpc*-*-*]
> && [check_effective_target_has_arch_pwr10])
> + || ([istarget loongarch*-*-*]
> + && [check_effective_target_loongarch_sx])
> || [istarget amdgcn-*-*] }}]
> }
>
> @@ -12656,6 +12658,22 @@ proc
> check_effective_target_const_volatile_readonly_section { } {
> return 1
> }
>
> +proc check_effective_target_loongarch_sx { } {
> + return [check_no_compiler_messages loongarch_lsx assembly {
> + #if !defined(__loongarch_sx)
> + #error "LSX not defined"
> + #endif
> + }]
> +}
> +
> +proc check_effective_target_loongarch_asx { } {
> + return [check_no_compiler_messages loongarch_asx assembly {
> + #if !defined(__loongarch_asx)
> + #error "LASX not defined"
> + #endif
> + }]
> +}
> +
> # Appends necessary Python flags to extra-tool-flags if Python.h is
> supported.
> # Otherwise, modifies dg-do-what.
> proc dg-require-python-h { args } {
--
Xi Ruoyao <xry...@xry111.site>
School of Aerospace Science and Technology, Xidian University
