Message ID | 20210512092640.901076-1-naohirot@fujitsu.com |
---|---|
State | New |
Headers | show |
Series | aarch64: Added optimized memcpy/memmove/memset for A64FX | expand |
The 05/12/2021 09:26, Naohiro Tamura wrote: > From: Naohiro Tamura <naohirot@jp.fujitsu.com> > > This patch checks if assembler supports '-march=armv8.2-a+sve' to > generate SVE code or not, and then define HAVE_AARCH64_SVE_ASM macro. this is ok for master. i will commit it for you. > --- > config.h.in | 5 +++++ > sysdeps/aarch64/configure | 28 ++++++++++++++++++++++++++++ > sysdeps/aarch64/configure.ac | 15 +++++++++++++++ > 3 files changed, 48 insertions(+) > > diff --git a/config.h.in b/config.h.in > index 99036b887f..13fba9bb8d 100644 > --- a/config.h.in > +++ b/config.h.in > @@ -121,6 +121,11 @@ > /* AArch64 PAC-RET code generation is enabled. */ > #define HAVE_AARCH64_PAC_RET 0 > > +/* Assembler support ARMv8.2-A SVE. > + This macro becomes obsolete when glibc increased the minimum > + required version of GNU 'binutils' to 2.28 or later. */ > +#define HAVE_AARCH64_SVE_ASM 0 > + > /* ARC big endian ABI */ > #undef HAVE_ARC_BE > > diff --git a/sysdeps/aarch64/configure b/sysdeps/aarch64/configure > index 83c3a23e44..4c1fac49f3 100644 > --- a/sysdeps/aarch64/configure > +++ b/sysdeps/aarch64/configure > @@ -304,3 +304,31 @@ fi > $as_echo "$libc_cv_aarch64_variant_pcs" >&6; } > config_vars="$config_vars > aarch64-variant-pcs = $libc_cv_aarch64_variant_pcs" > + > +# Check if asm support armv8.2-a+sve > +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SVE support in assembler" >&5 > +$as_echo_n "checking for SVE support in assembler... " >&6; } > +if ${libc_cv_asm_sve+:} false; then : > + $as_echo_n "(cached) " >&6 > +else > + cat > conftest.s <<\EOF > + ptrue p0.b > +EOF > +if { ac_try='${CC-cc} -c -march=armv8.2-a+sve conftest.s 1>&5' > + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 > + (eval $ac_try) 2>&5 > + ac_status=$? > + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 > + test $ac_status = 0; }; }; then > + libc_cv_aarch64_sve_asm=yes > +else > + libc_cv_aarch64_sve_asm=no > +fi > +rm -f conftest* > +fi > +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_sve" >&5 > +$as_echo "$libc_cv_asm_sve" >&6; } > +if test $libc_cv_aarch64_sve_asm = yes; then > + $as_echo "#define HAVE_AARCH64_SVE_ASM 1" >>confdefs.h > + > +fi > diff --git a/sysdeps/aarch64/configure.ac b/sysdeps/aarch64/configure.ac > index 66f755078a..3347c13fa1 100644 > --- a/sysdeps/aarch64/configure.ac > +++ b/sysdeps/aarch64/configure.ac > @@ -90,3 +90,18 @@ EOF > fi > rm -rf conftest.*]) > LIBC_CONFIG_VAR([aarch64-variant-pcs], [$libc_cv_aarch64_variant_pcs]) > + > +# Check if asm support armv8.2-a+sve > +AC_CACHE_CHECK(for SVE support in assembler, libc_cv_asm_sve, [dnl > +cat > conftest.s <<\EOF > + ptrue p0.b > +EOF > +if AC_TRY_COMMAND(${CC-cc} -c -march=armv8.2-a+sve conftest.s 1>&AS_MESSAGE_LOG_FD); then > + libc_cv_aarch64_sve_asm=yes > +else > + libc_cv_aarch64_sve_asm=no > +fi > +rm -f conftest*]) > +if test $libc_cv_aarch64_sve_asm = yes; then > + AC_DEFINE(HAVE_AARCH64_SVE_ASM) > +fi > -- > 2.17.1 >
diff --git a/config.h.in b/config.h.in index 99036b887f..13fba9bb8d 100644 --- a/config.h.in +++ b/config.h.in @@ -121,6 +121,11 @@ /* AArch64 PAC-RET code generation is enabled. */ #define HAVE_AARCH64_PAC_RET 0 +/* Assembler support ARMv8.2-A SVE. + This macro becomes obsolete when glibc increased the minimum + required version of GNU 'binutils' to 2.28 or later. */ +#define HAVE_AARCH64_SVE_ASM 0 + /* ARC big endian ABI */ #undef HAVE_ARC_BE diff --git a/sysdeps/aarch64/configure b/sysdeps/aarch64/configure index 83c3a23e44..4c1fac49f3 100644 --- a/sysdeps/aarch64/configure +++ b/sysdeps/aarch64/configure @@ -304,3 +304,31 @@ fi $as_echo "$libc_cv_aarch64_variant_pcs" >&6; } config_vars="$config_vars aarch64-variant-pcs = $libc_cv_aarch64_variant_pcs" + +# Check if asm support armv8.2-a+sve +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SVE support in assembler" >&5 +$as_echo_n "checking for SVE support in assembler... " >&6; } +if ${libc_cv_asm_sve+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat > conftest.s <<\EOF + ptrue p0.b +EOF +if { ac_try='${CC-cc} -c -march=armv8.2-a+sve conftest.s 1>&5' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then + libc_cv_aarch64_sve_asm=yes +else + libc_cv_aarch64_sve_asm=no +fi +rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_sve" >&5 +$as_echo "$libc_cv_asm_sve" >&6; } +if test $libc_cv_aarch64_sve_asm = yes; then + $as_echo "#define HAVE_AARCH64_SVE_ASM 1" >>confdefs.h + +fi diff --git a/sysdeps/aarch64/configure.ac b/sysdeps/aarch64/configure.ac index 66f755078a..3347c13fa1 100644 --- a/sysdeps/aarch64/configure.ac +++ b/sysdeps/aarch64/configure.ac @@ -90,3 +90,18 @@ EOF fi rm -rf conftest.*]) LIBC_CONFIG_VAR([aarch64-variant-pcs], [$libc_cv_aarch64_variant_pcs]) + +# Check if asm support armv8.2-a+sve +AC_CACHE_CHECK(for SVE support in assembler, libc_cv_asm_sve, [dnl +cat > conftest.s <<\EOF + ptrue p0.b +EOF +if AC_TRY_COMMAND(${CC-cc} -c -march=armv8.2-a+sve conftest.s 1>&AS_MESSAGE_LOG_FD); then + libc_cv_aarch64_sve_asm=yes +else + libc_cv_aarch64_sve_asm=no +fi +rm -f conftest*]) +if test $libc_cv_aarch64_sve_asm = yes; then + AC_DEFINE(HAVE_AARCH64_SVE_ASM) +fi
From: Naohiro Tamura <naohirot@jp.fujitsu.com> This patch checks if assembler supports '-march=armv8.2-a+sve' to generate SVE code or not, and then define HAVE_AARCH64_SVE_ASM macro. --- config.h.in | 5 +++++ sysdeps/aarch64/configure | 28 ++++++++++++++++++++++++++++ sysdeps/aarch64/configure.ac | 15 +++++++++++++++ 3 files changed, 48 insertions(+)