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RISC-V: Support version controling for ISA standard extensions

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- New option -misa-spec support: -misa-spec=[2.2|20190608|20191213] and
   corresponding configuration option --with-isa-spec.

 - Current default ISA spec set to 2.2, but we intend to bump this to
   20191213 or later in next release.

gcc/ChangeLog:

	* common/config/riscv/riscv-common.c (riscv_ext_version): New.
	(riscv_ext_version_table): Ditto.
	(get_default_version): Ditto.
	(riscv_subset_t::implied_p): New field.
	(riscv_subset_t::riscv_subset_t): Init implied_p.
	(riscv_subset_list::add): New.
	(riscv_subset_list::handle_implied_ext): Pass riscv_subset_t
	instead of separated argument.
	(riscv_subset_list::to_string): Handle zifencei and zicsr, and
	omit version if version is unknown.
	(riscv_subset_list::parsing_subset_version): New argument `ext`,
	remove default_major_version and default_minor_version, get
	default version info via get_default_version.
	(riscv_subset_list::parse_std_ext): Update argument for
	parsing_subset_version calls.
	Handle 2.2 ISA spec, always enable zicsr and zifencei, they are
	included in baseline ISA in that time.
	(riscv_subset_list::parse_multiletter_ext): Update argument for
	`parsing_subset_version` and `add` calls.
	(riscv_subset_list::parse): Adjust argument for
	riscv_subset_list::handle_implied_ext call.
	* config.gcc (riscv*-*-*): Handle --with-isa-spec=.
	* config.in (HAVE_AS_MISA_SPEC): New.
	(HAVE_AS_MARCH_ZIFENCEI): Ditto.
	* config/riscv/riscv-opts.h (riscv_isa_spec_class): New.
	(riscv_isa_spec): Ditto.
	* config/riscv/riscv.h (HAVE_AS_MISA_SPEC): New.
	(ASM_SPEC): Pass -misa-spec if gas supported.
	* config/riscv/riscv.opt (riscv_isa_spec_class) New.
	* configure.ac (HAVE_AS_MARCH_ZIFENCEI): New test.
	(HAVE_AS_MISA_SPEC): Ditto.
	* configure: Regen.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/arch-9.c: New.
	* gcc.target/riscv/arch-10.c: Ditto.
	* gcc.target/riscv/arch-11.c: Ditto.
	* gcc.target/riscv/attribute-6.c: Remove, we don't support G
	with version anymore.
	* gcc.target/riscv/attribute-8.c: Reorder arch string to fit canonical
	ordering.
	* gcc.target/riscv/attribute-9.c: We don't emit version for
	unknown extensions now.
	* gcc.target/riscv/attribute-11.c: Add -misa-spec=2.2 flags.
	* gcc.target/riscv/attribute-12.c: Ditto.
	* gcc.target/riscv/attribute-13.c: Ditto.
	* gcc.target/riscv/attribute-14.c: Ditto.
	* gcc.target/riscv/attribute-15.c: New.
	* gcc.target/riscv/attribute-16.c: Ditto.
	* gcc.target/riscv/attribute-17.c: Ditto.
This commit is contained in:
Kito Cheng 2020-11-11 16:33:57 +08:00
parent b03be74bad
commit 4b81528241
21 changed files with 393 additions and 88 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

287
gcc/common/config/riscv/riscv-common.c
View file

@ -44,6 +44,7 @@ struct riscv_subset_t
struct riscv_subset_t *next;
bool explicit_version_p;
bool implied_p;
};
/* Type for implied ISA info. */
@ -62,6 +63,58 @@ static const riscv_implied_info_t riscv_implied_info[] =
{NULL, NULL}
};
/* This structure holds version information for specific ISA version. */
struct riscv_ext_version
{
const char *name;
enum riscv_isa_spec_class isa_spec_class;
int major_version;
int minor_version;
};
/* All standard extensions defined in all supported ISA spec. */
static const struct riscv_ext_version riscv_ext_version_table[] =
{
/* name, ISA spec, major version, minor_version. */
{"e", ISA_SPEC_CLASS_20191213, 1, 9},
{"e", ISA_SPEC_CLASS_20190608, 1, 9},
{"e", ISA_SPEC_CLASS_2P2, 1, 9},
{"i", ISA_SPEC_CLASS_20191213, 2, 1},
{"i", ISA_SPEC_CLASS_20190608, 2, 1},
{"i", ISA_SPEC_CLASS_2P2, 2, 0},
{"m", ISA_SPEC_CLASS_20191213, 2, 0},
{"m", ISA_SPEC_CLASS_20190608, 2, 0},
{"m", ISA_SPEC_CLASS_2P2, 2, 0},
{"a", ISA_SPEC_CLASS_20191213, 2, 1},
{"a", ISA_SPEC_CLASS_20190608, 2, 0},
{"a", ISA_SPEC_CLASS_2P2, 2, 0},
{"f", ISA_SPEC_CLASS_20191213, 2, 2},
{"f", ISA_SPEC_CLASS_20190608, 2, 2},
{"f", ISA_SPEC_CLASS_2P2, 2, 0},
{"d", ISA_SPEC_CLASS_20191213, 2, 2},
{"d", ISA_SPEC_CLASS_20190608, 2, 2},
{"d", ISA_SPEC_CLASS_2P2, 2, 0},
{"c", ISA_SPEC_CLASS_20191213, 2, 0},
{"c", ISA_SPEC_CLASS_20190608, 2, 0},
{"c", ISA_SPEC_CLASS_2P2, 2, 0},
{"zicsr", ISA_SPEC_CLASS_20191213, 2, 0},
{"zicsr", ISA_SPEC_CLASS_20190608, 2, 0},
{"zifencei", ISA_SPEC_CLASS_20191213, 2, 0},
{"zifencei", ISA_SPEC_CLASS_20190608, 2, 0},
/* Terminate the list. */
{NULL, ISA_SPEC_CLASS_NONE, 0, 0}
};
static const riscv_cpu_info riscv_cpu_tables[] =
{
#define RISCV_CORE(CORE_NAME, ARCH, TUNE) \
@ -91,20 +144,22 @@ private:
riscv_subset_list (const char *, location_t);
const char *parsing_subset_version (const char *, unsigned *, unsigned *,
unsigned, unsigned, bool, bool *);
const char *parsing_subset_version (const char *, const char *, unsigned *,
unsigned *, bool, bool *);
const char *parse_std_ext (const char *);
const char *parse_multiletter_ext (const char *, const char *,
const char *);
void handle_implied_ext (const char *, int, int, bool);
void handle_implied_ext (riscv_subset_t *);
public:
~riscv_subset_list ();
void add (const char *, int, int, bool);
void add (const char *, int, int, bool, bool);
void add (const char *, bool);
riscv_subset_t *lookup (const char *,
int major_version = RISCV_DONT_CARE_VERSION,
@ -124,7 +179,7 @@ static riscv_subset_list *current_subset_list = NULL;
riscv_subset_t::riscv_subset_t ()
: name (), major_version (0), minor_version (0), next (NULL),
explicit_version_p (false)
explicit_version_p (false), implied_p (false)
{
}
@ -274,8 +329,31 @@ subset_cmp (const std::string &a, const std::string &b)
void
riscv_subset_list::add (const char *subset, int major_version,
int minor_version, bool explicit_version_p)
int minor_version, bool explicit_version_p,
bool implied_p)
{
riscv_subset_t *ext = lookup (subset);
if (ext)
{
if (ext->implied_p)
{
/* We won't add impiled `ext` if it already in list. */
gcc_assert (!implied_p);
ext->implied_p = implied_p;
ext->major_version = major_version;
ext->minor_version = minor_version;
}
else
error_at (
m_loc,
"%<-march=%s%>: Extension `%s' appear more than one time.",
m_arch,
subset);
return;
}
riscv_subset_t *s = new riscv_subset_t ();
riscv_subset_t *itr;
@ -286,6 +364,7 @@ riscv_subset_list::add (const char *subset, int major_version,
s->major_version = major_version;
s->minor_version = minor_version;
s->explicit_version_p = explicit_version_p;
s->implied_p = implied_p;
s->next = NULL;
if (m_tail == NULL)
@ -330,6 +409,43 @@ riscv_subset_list::add (const char *subset, int major_version,
m_tail = s;
}
static void
get_default_version (const char *ext,
unsigned int *major_version,
unsigned int *minor_version)
{
const riscv_ext_version *ext_ver;
for (ext_ver = &riscv_ext_version_table[0];
ext_ver->name != NULL;
++ext_ver)
if (strcmp (ext, ext_ver->name) == 0)
{
if ((ext_ver->isa_spec_class == riscv_isa_spec) ||
(ext_ver->isa_spec_class == ISA_SPEC_CLASS_NONE))
{
*major_version = ext_ver->major_version;
*minor_version = ext_ver->minor_version;
return;
}
}
/* Not found version info. */
*major_version = 0;
*minor_version = 0;
}
/* Add new subset to list, but using default version from ISA spec version. */
void
riscv_subset_list::add (const char *subset, bool implied_p)
{
unsigned int major_version = 0, minor_version = 0;
get_default_version (subset, &major_version, &minor_version);
add (subset, major_version, minor_version, false, implied_p);
}
/* Convert subset info to string with explicit version info,
VERSION_P to determine append version info or not. */
@ -340,10 +456,37 @@ riscv_subset_list::to_string (bool version_p) const
oss << "rv" << m_xlen;
bool first = true;
riscv_subset_t *subset = m_head;
riscv_subset_t *subset;
while (subset != NULL)
bool skip_zifencei = false;
bool skip_zicsr = false;
/* For RISC-V ISA version 2.2 or earlier version, zicsr and zifencei is
included in the base ISA. */
if (riscv_isa_spec == ISA_SPEC_CLASS_2P2)
{
skip_zifencei = true;
skip_zicsr = true;
}
#ifndef HAVE_AS_MISA_SPEC
/* Skip since older binutils doesn't recognize zicsr. */
skip_zicsr = true;
#endif
#ifndef HAVE_AS_MARCH_ZIFENCE
/* Skip since older binutils doesn't recognize zifencei, we made
a mistake in that binutils 2.35 supports zicsr but not zifencei. */
skip_zifencei = true;
#endif
for (subset = m_head; subset != NULL; subset = subset->next)
{
if (subset->implied_p && skip_zifencei && subset->name == "zifencei")
continue;
if (subset->implied_p && skip_zicsr && subset->name == "zicsr")
continue;
/* For !version_p, we only separate extension with underline for
multi-letter extension. */
if (!first &&
@ -355,12 +498,12 @@ riscv_subset_list::to_string (bool version_p) const
oss << subset->name;
if (version_p || subset->explicit_version_p)
/* Let binutils decide the extension version if we don't know. */
if ((version_p || subset->explicit_version_p) &&
(subset->major_version != 0 || subset->minor_version != 0))
oss << subset->major_version
<< 'p'
<< subset->minor_version;
subset = subset->next;
}
return oss.str ();
@ -408,23 +551,21 @@ riscv_supported_std_ext (void)
Points to the end of version
Arguments:
`ext`: This extension.
`p`: Current parsing position.
`major_version`: Parsing result of major version, using
default_major_version if version is not present in arch string.
`minor_version`: Parsing result of minor version, set to 0 if version is
not present in arch string, but set to `default_minor_version` if
`major_version` using default_major_version.
`default_major_version`: Default major version.
`default_minor_version`: Default minor version.
`std_ext_p`: True if parsing std extension.
`explicit_version_p`: True if this subset is not using default version. */
const char *
riscv_subset_list::parsing_subset_version (const char *p,
riscv_subset_list::parsing_subset_version (const char *ext,
const char *p,
unsigned *major_version,
unsigned *minor_version,
unsigned default_major_version,
unsigned default_minor_version,
bool std_ext_p,
bool *explicit_version_p)
{
@ -475,11 +616,7 @@ riscv_subset_list::parsing_subset_version (const char *p,
minor = version;
if (major == 0 && minor == 0)
{
/* We didn't find any version string, use default version. */
*major_version = default_major_version;
*minor_version = default_minor_version;
}
get_default_version (ext, major_version, minor_version);
else
{
*explicit_version_p = true;
@ -513,23 +650,17 @@ riscv_subset_list::parse_std_ext (const char *p)
{
case 'i':
p++;
p = parsing_subset_version (p, &major_version, &minor_version,
/* default_major_version= */ 2,
/* default_minor_version= */ 0,
/* std_ext_p= */ true,
&explicit_version_p);
add ("i", major_version, minor_version, explicit_version_p);
p = parsing_subset_version ("i", p, &major_version, &minor_version,
/* std_ext_p= */ true, &explicit_version_p);
add ("i", major_version, minor_version, explicit_version_p, false);
break;
case 'e':
p++;
p = parsing_subset_version (p, &major_version, &minor_version,
/* default_major_version= */ 1,
/* default_minor_version= */ 9,
/* std_ext_p= */ true,
&explicit_version_p);
p = parsing_subset_version ("e", p, &major_version, &minor_version,
/* std_ext_p= */ true, &explicit_version_p);
add ("e", major_version, minor_version, explicit_version_p);
add ("e", major_version, minor_version, explicit_version_p, false);
if (m_xlen > 32)
{
@ -541,18 +672,26 @@ riscv_subset_list::parse_std_ext (const char *p)
case 'g':
p++;
p = parsing_subset_version (p, &major_version, &minor_version,
/* default_major_version= */ 2,
/* default_minor_version= */ 0,
/* std_ext_p= */ true,
&explicit_version_p);
add ("i", major_version, minor_version, explicit_version_p);
for (; *std_exts != 'q'; std_exts++)
p = parsing_subset_version ("g", p, &major_version, &minor_version,
/* std_ext_p= */ true, &explicit_version_p);
if (major_version != 0 || minor_version != 0)
{
const char subset[] = {*std_exts, '\0'};
add (subset, major_version, minor_version, explicit_version_p);
warning_at (m_loc, 0, "version of `g` will be omitted, please "
"specify version for individual extension.");
}
/* We have special rule for G, we disallow rv32gm2p but allow rv32g_zicsr
here, basically we treating G expand to imafd and implied zicsr and
zifencei. */
add ("i", false);
add ("m", false);
add ("a", false);
add ("f", false);
add ("d", false);
add ("zicsr", true);
add ("zifencei", true);
break;
default:
@ -595,44 +734,47 @@ riscv_subset_list::parse_std_ext (const char *p)
std_exts++;
p++;
p = parsing_subset_version (p, &major_version, &minor_version,
/* default_major_version= */ 2,
/* default_minor_version= */ 0,
/* std_ext_p= */ true,
&explicit_version_p);
subset[0] = std_ext;
add (subset, major_version, minor_version, explicit_version_p);
p = parsing_subset_version (subset, p, &major_version, &minor_version,
/* std_ext_p= */ true, &explicit_version_p);
add (subset, major_version, minor_version, explicit_version_p, false);
}
return p;
}
/* Check any implied extensions for EXT with version
MAJOR_VERSION.MINOR_VERSION, EXPLICIT_VERSION_P indicate the version is
explicitly given by user or not. */
/* Check any implied extensions for EXT. */
void
riscv_subset_list::handle_implied_ext (const char *ext,
int major_version,
int minor_version,
bool explicit_version_p)
riscv_subset_list::handle_implied_ext (riscv_subset_t *ext)
{
const riscv_implied_info_t *implied_info;
for (implied_info = &riscv_implied_info[0];
implied_info->ext;
++implied_info)
{
if (strcmp (ext, implied_info->ext) != 0)
if (strcmp (ext->name.c_str (), implied_info->ext) != 0)
continue;
/* Skip if implied extension already present. */
if (lookup (implied_info->implied_ext))
continue;
/* TODO: Implied extension might use different version. */
add (implied_info->implied_ext, major_version, minor_version,
explicit_version_p);
/* Version of implied extension will get from current ISA spec
version. */
add (implied_info->implied_ext, true);
}
/* For RISC-V ISA version 2.2 or earlier version, zicsr and zifence is
included in the base ISA. */
if (riscv_isa_spec == ISA_SPEC_CLASS_2P2)
{
if (lookup ("zicsr") == NULL)
add ("zicsr", true);
if (lookup ("zifencei") == NULL)
add ("zifencei", true);
}
}
@ -670,16 +812,21 @@ riscv_subset_list::parse_multiletter_ext (const char *p,
char *q = subset;
const char *end_of_version;
bool explicit_version_p = false;
char *ext;
char backup;
while (*++q != '\0' && *q != '_' && !ISDIGIT (*q))
;
backup = *q;
*q = '\0';
ext = xstrdup (subset);
*q = backup;
end_of_version
= parsing_subset_version (q, &major_version, &minor_version,
/* default_major_version= */ 2,
/* default_minor_version= */ 0,
/* std_ext_p= */ FALSE,
&explicit_version_p);
= parsing_subset_version (ext, q, &major_version, &minor_version,
/* std_ext_p= */ false, &explicit_version_p);
free (ext);
*q = '\0';
@ -691,7 +838,7 @@ riscv_subset_list::parse_multiletter_ext (const char *p,
return NULL;
}
add (subset, major_version, minor_version, explicit_version_p);
add (subset, major_version, minor_version, explicit_version_p, false);
free (subset);
p += end_of_version - subset;
@ -770,11 +917,7 @@ riscv_subset_list::parse (const char *arch, location_t loc)
for (itr = subset_list->m_head; itr != NULL; itr = itr->next)
{
subset_list->handle_implied_ext (
itr->name.c_str (),
itr->major_version,
itr->minor_version,
itr->explicit_version_p);
subset_list->handle_implied_ext (itr);
}
return subset_list;

17
gcc/config.gcc
View file

@ -4541,7 +4541,7 @@ case "${target}" in
;;
riscv*-*-*)
supported_defaults="abi arch tune riscv_attribute"
supported_defaults="abi arch tune riscv_attribute isa_spec"
case "${target}" in
riscv-* | riscv32*) xlen=32 ;;
@ -4549,6 +4549,21 @@ case "${target}" in
*) echo "Unsupported RISC-V target ${target}" 1>&2; exit 1 ;;
esac
case "${with_isa_spec}" in
""|default|2.2)
tm_defines="${tm_defines} TARGET_DEFAULT_ISA_SPEC=ISA_SPEC_CLASS_2P2"
;;
20191213 | 201912)
tm_defines="${tm_defines} TARGET_DEFAULT_ISA_SPEC=ISA_SPEC_CLASS_20191213"
;;
20190608 | 201906)
tm_defines="${tm_defines} TARGET_DEFAULT_ISA_SPEC=ISA_SPEC_CLASS_20190608"
;;
*)
echo "--with-isa-spec only accept 2.2, 20191213, 201912, 20190608 or 201906" 1>&2
exit 1
esac
case "${with_riscv_attribute}" in
yes)
tm_defines="${tm_defines} TARGET_RISCV_ATTRIBUTE=1"

12
gcc/config.in
View file

@ -643,6 +643,18 @@
#endif
/* Define if your assembler supports -misa-spec=. */
#ifndef USED_FOR_TARGET
#undef HAVE_AS_MISA_SPEC
#endif
/* Define if your assembler supports -march=rv*_zifencei. */
#ifndef USED_FOR_TARGET
#undef HAVE_AS_MARCH_ZIFENCEI
#endif
/* Define if your assembler supports relocs needed by -fpic. */
#ifndef USED_FOR_TARGET
#undef HAVE_AS_SMALL_PIC_RELOCS

10
gcc/config/riscv/riscv-opts.h
View file

@ -39,6 +39,16 @@ enum riscv_code_model {
};
extern enum riscv_code_model riscv_cmodel;
enum riscv_isa_spec_class {
ISA_SPEC_CLASS_NONE,
ISA_SPEC_CLASS_2P2,
ISA_SPEC_CLASS_20190608,
ISA_SPEC_CLASS_20191213
};
extern enum riscv_isa_spec_class riscv_isa_spec;
/* Keep this list in sync with define_attr "tune" in riscv.md. */
enum riscv_microarchitecture_type {
generic,

9
gcc/config/riscv/riscv.h
View file

@ -70,13 +70,20 @@ extern const char *riscv_default_mtune (int argc, const char **argv);
#define TARGET_64BIT (__riscv_xlen == 64)
#endif /* IN_LIBGCC2 */
#ifdef HAVE_AS_MISA_SPEC
#define ASM_MISA_SPEC "%{misa-spec=*}"
#else
#define ASM_MISA_SPEC ""
#endif
#undef ASM_SPEC
#define ASM_SPEC "\
%(subtarget_asm_debugging_spec) \
%{" FPIE_OR_FPIC_SPEC ":-fpic} \
%{march=*} \
%{mabi=*} \
%(subtarget_asm_spec)"
%(subtarget_asm_spec)" \
ASM_MISA_SPEC
#undef DRIVER_SELF_SPECS
#define DRIVER_SELF_SPECS \

17
gcc/config/riscv/riscv.opt
View file

@ -186,3 +186,20 @@ long riscv_stack_protector_guard_offset = 0
TargetVariable
int riscv_zi_subext
Enum
Name(isa_spec_class) Type(enum riscv_isa_spec_class)
Supported ISA specs (for use with the -misa-spec= option):
EnumValue
Enum(isa_spec_class) String(2.2) Value(ISA_SPEC_CLASS_2P2)
EnumValue
Enum(isa_spec_class) String(20190608) Value(ISA_SPEC_CLASS_20190608)
EnumValue
Enum(isa_spec_class) String(20191213) Value(ISA_SPEC_CLASS_20191213)
misa-spec=
Target Report RejectNegative Joined Enum(isa_spec_class) Var(riscv_isa_spec) Init(TARGET_DEFAULT_ISA_SPEC)
Set the version of RISC-V ISA spec.

62
gcc/configure vendored
View file

@ -28136,6 +28136,68 @@ if test $gcc_cv_as_riscv_attribute = yes; then
$as_echo "#define HAVE_AS_RISCV_ATTRIBUTE 1" >>confdefs.h
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for -misa-spec= support" >&5
$as_echo_n "checking assembler for -misa-spec= support... " >&6; }
if ${gcc_cv_as_riscv_isa_spec+:} false; then :
$as_echo_n "(cached) " >&6
else
gcc_cv_as_riscv_isa_spec=no
if test x$gcc_cv_as != x; then
$as_echo '' > conftest.s
if { ac_try='$gcc_cv_as $gcc_cv_as_flags -misa-spec=2.2 -o conftest.o conftest.s >&5'
{ { eval echo "\"\$as_me\":${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
gcc_cv_as_riscv_isa_spec=yes
else
echo "configure: failed program was" >&5
cat conftest.s >&5
fi
rm -f conftest.o conftest.s
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_riscv_isa_spec" >&5
$as_echo "$gcc_cv_as_riscv_isa_spec" >&6; }
if test $gcc_cv_as_riscv_isa_spec = yes; then
$as_echo "#define HAVE_AS_MISA_SPEC 1" >>confdefs.h
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for -march=rv32i_zifencei support" >&5
$as_echo_n "checking assembler for -march=rv32i_zifencei support... " >&6; }
if ${gcc_cv_as_riscv_march_zifencei+:} false; then :
$as_echo_n "(cached) " >&6
else
gcc_cv_as_riscv_march_zifencei=no
if test x$gcc_cv_as != x; then
$as_echo '' > conftest.s
if { ac_try='$gcc_cv_as $gcc_cv_as_flags -march=rv32i_zifencei -o conftest.o conftest.s >&5'
{ { eval echo "\"\$as_me\":${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
gcc_cv_as_riscv_march_zifencei=yes
else
echo "configure: failed program was" >&5
cat conftest.s >&5
fi
rm -f conftest.o conftest.s
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_riscv_march_zifencei" >&5
$as_echo "$gcc_cv_as_riscv_march_zifencei" >&6; }
if test $gcc_cv_as_riscv_march_zifencei = yes; then
$as_echo "#define HAVE_AS_MARCH_ZIFENCEI 1" >>confdefs.h
fi
;;

10
gcc/configure.ac
View file

@ -5111,6 +5111,16 @@ configured with --enable-newlib-nano-formatted-io.])
[.attribute stack_align,4],,
[AC_DEFINE(HAVE_AS_RISCV_ATTRIBUTE, 1,
[Define if your assembler supports .attribute.])])
gcc_GAS_CHECK_FEATURE([-misa-spec= support],
gcc_cv_as_riscv_isa_spec,,
[-misa-spec=2.2],,,
[AC_DEFINE(HAVE_AS_MISA_SPEC, 1,
[Define if the assembler understands -misa-spec=.])])
gcc_GAS_CHECK_FEATURE([-march=rv32i_zifencei support],
gcc_cv_as_riscv_march_zifencei,,
[-march=rv32i_zifencei],,,
[AC_DEFINE(HAVE_AS_MARCH_ZIFENCEI, 1,
[Define if the assembler understands -march=rv*_zifencei.])])
;;
s390*-*-*)
gcc_GAS_CHECK_FEATURE([.gnu_attribute support],

6
gcc/testsuite/gcc.target/riscv/arch-10.c Normal file
View file

@ -0,0 +1,6 @@
/* { dg-do compile } */
/* { dg-options "-O2 -march=rv32gf2 -mabi=ilp32" } */
int foo()
{
}
/* { dg-error "Extension `f' appear more than one time." "" { target *-*-* } 0 } */

5
gcc/testsuite/gcc.target/riscv/arch-11.c Normal file
View file

@ -0,0 +1,5 @@
/* { dg-do compile } */
/* { dg-options "-O2 -march=rv32g_zicsr2 -mabi=ilp32" } */
int foo()
{
}

6
gcc/testsuite/gcc.target/riscv/arch-9.c Normal file
View file

@ -0,0 +1,6 @@
/* { dg-do compile } */
/* { dg-options "-O2 -march=rv32g2 -mabi=ilp32" } */
int foo()
{
}
/* { dg-warning "version of `g` will be omitted, please specify version for individual extension." "" { target *-*-* } 0 } */

2
gcc/testsuite/gcc.target/riscv/attribute-11.c
View file

@ -1,5 +1,5 @@
/* { dg-do compile } */
/* { dg-options "-O -mriscv-attribute -march=rv32id -mabi=ilp32" } */
/* { dg-options "-O -mriscv-attribute -march=rv32id -mabi=ilp32 -misa-spec=2.2" } */
int foo()
{
}

2
gcc/testsuite/gcc.target/riscv/attribute-12.c
View file

@ -1,5 +1,5 @@
/* { dg-do compile } */
/* { dg-options "-O -mriscv-attribute -march=rv32ifd -mabi=ilp32" } */
/* { dg-options "-O -mriscv-attribute -march=rv32ifd -mabi=ilp32 -misa-spec=2.2" } */
int foo()
{
}

2
gcc/testsuite/gcc.target/riscv/attribute-13.c
View file

@ -1,5 +1,5 @@
/* { dg-do compile } */
/* { dg-options "-O -mriscv-attribute -march=rv32if3d -mabi=ilp32" } */
/* { dg-options "-O -mriscv-attribute -march=rv32if3d -mabi=ilp32 -misa-spec=2.2" } */
int foo()
{
}

4
gcc/testsuite/gcc.target/riscv/attribute-14.c
View file

@ -1,6 +1,6 @@
/* { dg-do compile } */
/* { dg-options "-O -mriscv-attribute -march=rv32if -mabi=ilp32" } */
/* { dg-options "-O -mriscv-attribute -march=rv32if -mabi=ilp32 -misa-spec=20190608" } */
int foo()
{
}
/* { dg-final { scan-assembler ".attribute arch, \"rv32i2p0_f2p0_zicsr2p0\"" } } */
/* { dg-final { scan-assembler ".attribute arch, \"rv32i2p1_f2p2_zicsr2p0\"" } } */

6
gcc/testsuite/gcc.target/riscv/attribute-15.c Normal file
View file

@ -0,0 +1,6 @@
/* { dg-do compile } */
/* { dg-options "-O -mriscv-attribute -march=rv32gc -mabi=ilp32 -misa-spec=2.2" } */
int foo()
{
}
/* { dg-final { scan-assembler ".attribute arch, \"rv32i2p0_m2p0_a2p0_f2p0_d2p0_c2p0\"" } } */

6
gcc/testsuite/gcc.target/riscv/attribute-16.c Normal file
View file

@ -0,0 +1,6 @@
/* { dg-do compile } */
/* { dg-options "-O -mriscv-attribute -march=rv32gc -mabi=ilp32 -misa-spec=20190608" } */
int foo()
{
}
/* { dg-final { scan-assembler ".attribute arch, \"rv32i2p1_m2p0_a2p0_f2p2_d2p2_c2p0_zicsr2p0" } } */

6
gcc/testsuite/gcc.target/riscv/attribute-17.c Normal file
View file

@ -0,0 +1,6 @@
/* { dg-do compile } */
/* { dg-options "-O -mriscv-attribute -march=rv32gc -mabi=ilp32 -misa-spec=20191213" } */
int foo()
{
}
/* { dg-final { scan-assembler ".attribute arch, \"rv32i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_zicsr2p0" } } */

6
gcc/testsuite/gcc.target/riscv/attribute-6.c
View file

@ -1,6 +0,0 @@
/* { dg-do compile } */
/* { dg-options "-O -mriscv-attribute -march=rv32g2p0 -mabi=ilp32" } */
int foo()
{
}
/* { dg-final { scan-assembler ".attribute arch, \"rv32i2p0_m2p0_a2p0_f2p0_d2p0\"" } } */

4
gcc/testsuite/gcc.target/riscv/attribute-8.c
View file

@ -1,6 +1,6 @@
/* { dg-do compile } */
/* { dg-options "-O -mriscv-attribute -march=rv32i2p0xv5_xabc -mabi=ilp32" } */
/* { dg-options "-O -mriscv-attribute -march=rv32i2p0xabc_xv5 -mabi=ilp32" } */
int foo()
{
}
/* { dg-final { scan-assembler ".attribute arch, \"rv32i2p0_xv5p0_xabc2p0\"" } } */
/* { dg-final { scan-assembler ".attribute arch, \"rv32i2p0_xabc_xv5p0\"" } } */

2
gcc/testsuite/gcc.target/riscv/attribute-9.c
View file

@ -3,4 +3,4 @@
int foo()
{
}
/* { dg-final { scan-assembler ".attribute arch, \"rv32i2p0_sabc2p0_xbar2p0\"" } } */
/* { dg-final { scan-assembler ".attribute arch, \"rv32i2p0_sabc_xbar\"" } } */