[PATCH v1 4/4] LoongArch: Enable LSX, LASX on float ABI
mengqinggang
mengqinggang@loongson.cn
Tue Jun 10 08:42:41 GMT 2025
---
gas/config/tc-loongarch.c | 123 +++++++++++++++++---------------------
1 file changed, 56 insertions(+), 67 deletions(-)
diff --git a/gas/config/tc-loongarch.c b/gas/config/tc-loongarch.c
index 4949d1759e4..ef47047ebf6 100644
--- a/gas/config/tc-loongarch.c
+++ b/gas/config/tc-loongarch.c
@@ -181,36 +181,26 @@ int
md_parse_option (int c, const char *arg)
{
int ret = 1;
- char lp64[256] = "";
- char ilp32[256] = "";
- unsigned char *suf = (unsigned char *)arg;
-
- lp64['s'] = lp64['S'] = EF_LOONGARCH_ABI_SOFT_FLOAT;
- lp64['f'] = lp64['F'] = EF_LOONGARCH_ABI_SINGLE_FLOAT;
- lp64['d'] = lp64['D'] = EF_LOONGARCH_ABI_DOUBLE_FLOAT;
-
- ilp32['s'] = ilp32['S'] = EF_LOONGARCH_ABI_SOFT_FLOAT;
- ilp32['f'] = ilp32['F'] = EF_LOONGARCH_ABI_SINGLE_FLOAT;
- ilp32['d'] = ilp32['D'] = EF_LOONGARCH_ABI_DOUBLE_FLOAT;
switch (c)
{
case OPTION_ABI:
- if (strncasecmp (arg, "lp64", 4) == 0 && lp64[suf[4]] != 0)
- {
- LARCH_opts.ase_ilp32 = 1;
- LARCH_opts.ase_lp64 = 1;
- LARCH_opts.ase_lsx = 1;
- LARCH_opts.ase_lasx = 1;
- LARCH_opts.ase_lvz = 1;
- LARCH_opts.ase_lbt = 1;
- LARCH_opts.ase_abi = lp64[suf[4]];
- }
- else if (strncasecmp (arg, "ilp32", 5) == 0 && ilp32[suf[5]] != 0)
- {
- LARCH_opts.ase_abi = ilp32[suf[5]];
- LARCH_opts.ase_ilp32 = 1;
- }
+ if (strcasecmp (arg, "lp64") == 0)
+ LARCH_opts.ase_abi = EF_LOONGARCH_ABI_DOUBLE_FLOAT;
+ else if (strcasecmp (arg, "lp64d") == 0)
+ LARCH_opts.ase_abi = EF_LOONGARCH_ABI_DOUBLE_FLOAT;
+ else if (strcasecmp (arg, "lp64f") == 0)
+ LARCH_opts.ase_abi = EF_LOONGARCH_ABI_SINGLE_FLOAT;
+ else if (strcasecmp (arg, "lp64s") == 0)
+ LARCH_opts.ase_abi = EF_LOONGARCH_ABI_SOFT_FLOAT;
+ else if (strcasecmp (arg, "ilp32") == 0)
+ LARCH_opts.ase_abi = EF_LOONGARCH_ABI_DOUBLE_FLOAT;
+ else if (strcasecmp (arg, "ilp32d") == 0)
+ LARCH_opts.ase_abi = EF_LOONGARCH_ABI_DOUBLE_FLOAT;
+ else if (strcasecmp (arg, "ilp32f") == 0)
+ LARCH_opts.ase_abi = EF_LOONGARCH_ABI_SINGLE_FLOAT;
+ else if (strcasecmp (arg, "ilp32s") == 0)
+ LARCH_opts.ase_abi = EF_LOONGARCH_ABI_SOFT_FLOAT;
else
ret = 0;
break;
@@ -285,48 +275,50 @@ static struct htab *cfi_f_htab = NULL;
void
loongarch_after_parse_args ()
{
- /* Set default ABI/ISA LP64D. */
- if (!LARCH_opts.ase_ilp32)
+ if (strcmp (default_arch, "loongarch64") == 0)
{
- if (strcmp (default_arch, "loongarch64") == 0)
- {
- LARCH_opts.ase_abi = EF_LOONGARCH_ABI_DOUBLE_FLOAT;
- LARCH_opts.ase_ilp32 = 1;
- LARCH_opts.ase_lp64 = 1;
- LARCH_opts.ase_lsx = 1;
- LARCH_opts.ase_lasx = 1;
- LARCH_opts.ase_lvz = 1;
- LARCH_opts.ase_lbt = 1;
- }
- else if (strcmp (default_arch, "loongarch32") == 0)
- {
- LARCH_opts.ase_abi = EF_LOONGARCH_ABI_DOUBLE_FLOAT;
- LARCH_opts.ase_ilp32 = 1;
- }
- else
- as_bad ("unknown default architecture `%s'", default_arch);
+ LARCH_opts.ase_ilp32 = 1;
+ LARCH_opts.ase_lp64 = 1;
}
+ else if (strcmp (default_arch, "loongarch32") == 0)
+ {
+ LARCH_opts.ase_ilp32 = 1;
+ }
+ else
+ as_bad ("unknown default architecture `%s'", default_arch);
- LARCH_opts.ase_abi |= EF_LOONGARCH_OBJABI_V1;
- /* Set default ISA double-float. */
- if (!LARCH_opts.ase_nf
- && !LARCH_opts.ase_sf
- && !LARCH_opts.ase_df)
+ /* Set default double-float ABI. */
+ if (!LARCH_opts.ase_abi)
+ LARCH_opts.ase_abi = EF_LOONGARCH_ABI_DOUBLE_FLOAT;
+
+ if (LARCH_opts.ase_abi == EF_LOONGARCH_ABI_SOFT_FLOAT)
+ LARCH_opts.ase_nf = 1;
+ else if (LARCH_opts.ase_abi == EF_LOONGARCH_ABI_SINGLE_FLOAT)
{
LARCH_opts.ase_sf = 1;
- LARCH_opts.ase_df = 1;
+ LARCH_opts.ase_lsx = 1;
+ LARCH_opts.ase_lasx = 1;
+ LARCH_opts.ase_lvz = 1;
+ LARCH_opts.ase_lbt = 1;
}
+ else if (LARCH_opts.ase_abi == EF_LOONGARCH_ABI_DOUBLE_FLOAT)
+ {
+ LARCH_opts.ase_sf = 1;
+ LARCH_opts.ase_df = 1;
+ LARCH_opts.ase_lsx = 1;
+ LARCH_opts.ase_lasx = 1;
+ LARCH_opts.ase_lvz = 1;
+ LARCH_opts.ase_lbt = 1;
+ }
- size_t i;
+ LARCH_opts.ase_abi |= EF_LOONGARCH_OBJABI_V1;
- assert(LARCH_opts.ase_ilp32);
+ size_t i;
- /* Init ilp32/lp64 registers names. */
if (!r_htab)
r_htab = str_htab_create ();
if (!r_deprecated_htab)
r_deprecated_htab = str_htab_create ();
- /* Init cfi registers alias. */
if (!cfi_r_htab)
cfi_r_htab = str_htab_create ();
@@ -336,7 +328,7 @@ loongarch_after_parse_args ()
str_hash_insert_int (r_htab, loongarch_r_normal_name[i], i, 0);
str_hash_insert_int (cfi_r_htab, loongarch_r_normal_name[i], i, 0);
}
- /* Init ilp32/lp64 registers alias. */
+
r_abi_names = loongarch_r_alias;
for (i = 0; i < ARRAY_SIZE (loongarch_r_alias); i++)
{
@@ -351,7 +343,6 @@ loongarch_after_parse_args ()
str_hash_insert_int (r_deprecated_htab, loongarch_r_alias_deprecated[i],
i, 0);
- /* The .cfi directive supports register aliases without the "$" prefix. */
for (i = 0; i < ARRAY_SIZE (loongarch_r_cfi_name); i++)
{
str_hash_insert_int (cfi_r_htab, loongarch_r_cfi_name[i], i, 0);
@@ -380,7 +371,7 @@ loongarch_after_parse_args ()
str_hash_insert_int (f_htab, loongarch_f_normal_name[i], i, 0);
str_hash_insert_int (cfi_f_htab, loongarch_f_normal_name[i], i, 0);
}
- /* Init float-ilp32/lp64 registers alias. */
+
f_abi_names = loongarch_f_alias;
for (i = 0; i < ARRAY_SIZE (loongarch_f_alias); i++)
{
@@ -391,12 +382,12 @@ loongarch_after_parse_args ()
str_hash_insert_int (f_deprecated_htab, loongarch_f_alias_deprecated[i],
i, 0);
- /* The .cfi directive supports register aliases without the "$" prefix. */
- for (i = 0; i < ARRAY_SIZE (loongarch_f_cfi_name); i++)
- {
- str_hash_insert_int (cfi_f_htab, loongarch_f_cfi_name[i], i, 0);
- str_hash_insert_int (cfi_f_htab, loongarch_f_cfi_name_alias[i], i, 0);
- }
+ /* The .cfi directive supports register aliases without the "$" prefix. */
+ for (i = 0; i < ARRAY_SIZE (loongarch_f_cfi_name); i++)
+ {
+ str_hash_insert_int (cfi_f_htab, loongarch_f_cfi_name[i], i, 0);
+ str_hash_insert_int (cfi_f_htab, loongarch_f_cfi_name_alias[i], i, 0);
+ }
if (!fc_htab)
fc_htab = str_htab_create ();
@@ -415,7 +406,6 @@ loongarch_after_parse_args ()
for (i = 0; i < ARRAY_SIZE (loongarch_c_normal_name); i++)
str_hash_insert_int (c_htab, loongarch_c_normal_name[i], i, 0);
-
}
/* Init lsx registers names. */
@@ -427,7 +417,7 @@ loongarch_after_parse_args ()
str_hash_insert_int (v_htab, loongarch_v_normal_name[i], i, 0);
}
- /* Init lasx registers names. */
+ /* Init lssx registers names. */
if (LARCH_opts.ase_lasx)
{
if (!x_htab)
@@ -435,7 +425,6 @@ loongarch_after_parse_args ()
for (i = 0; i < ARRAY_SIZE (loongarch_x_normal_name); i++)
str_hash_insert_int (x_htab, loongarch_x_normal_name[i], i, 0);
}
-
}
const char *
--
2.34.1
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