Spencer Abson <spencer.ab...@arm.com> writes:
> GCC doesn't support SME without SVE2, so the -march=armv8-a+<ext> argument to
> check_no_compiler_messages causes aarch64_asm_<ext>_ok to return zero for SME
> and any <ext> that implies it.
>
> This patch changes the baseline architecure to armv9-a for these extensions.
>
> gcc/testsuite/ChangeLog:
>
> * lib/target-supports.exp: Split the extensions that require SME into
> a separate set, and use armv9-a as their baseline.
OK, thanks.
Richard
> ---
> gcc/testsuite/lib/target-supports.exp | 24 ++++++++++++++++++++++--
> 1 file changed, 22 insertions(+), 2 deletions(-)
>
> diff --git a/gcc/testsuite/lib/target-supports.exp
> b/gcc/testsuite/lib/target-supports.exp
> index e375b1ec02b..e8b403ca02c 100644
> --- a/gcc/testsuite/lib/target-supports.exp
> +++ b/gcc/testsuite/lib/target-supports.exp
> @@ -12524,8 +12524,14 @@ proc
> check_effective_target_aarch64_gas_has_build_attributes { } {
> set exts {
> "bf16" "cmpbr" "crc" "crypto" "dotprod" "f32mm" "f64mm" "fp" "fp8"
> "fp8dot2" "fp8dot4" "fp8fma" "i8mm" "ls64" "lse" "lut" "sb" "simd"
> - "sme-b16b16" "sme-f16f16" "sme-i16i64" "sme" "sme2" "sme2p1"
> "ssve-fp8dot2"
> - "ssve-fp8dot4" "ssve-fp8fma" "sve-b16b16" "sve" "sve2"
> + "sve-b16b16" "sve" "sve2"
> +}
> +
> +# We don't support SME without SVE2, so we'll use armv9 as the base
> +# archiecture for SME and the features that require it.
> +set exts_sve2 {
> + "sme-b16b16" "sme-f16f16" "sme-i16i64" "sme" "sme2" "sme2p1"
> + "ssve-fp8dot2" "ssve-fp8dot4" "ssve-fp8fma"
> }
>
> foreach { aarch64_ext } $exts {
> @@ -12542,6 +12548,20 @@ foreach { aarch64_ext } $exts {
> }]
> }
>
> +foreach { aarch64_ext } $exts_sve2 {
> + eval [string map [list FUNC $aarch64_ext] {
> + proc check_effective_target_aarch64_asm_FUNC_ok { } {
> + if { [istarget aarch64*-*-*] } {
> + return [check_no_compiler_messages aarch64_FUNC_assembler
> object {
> + __asm__ (".arch_extension FUNC");
> + } "-march=armv9-a+FUNC"]
> + } else {
> + return 0
> + }
> + }
> + }]
> +}
> +
> proc check_effective_target_aarch64_asm_sve2p1_ok { } {
> if { [istarget aarch64*-*-*] } {
> return [check_no_compiler_messages aarch64_sve2p1_assembler object {
