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LoongArch: gas: Add support for s9 register

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In LoongArch ABI, r22 register can be used as frame pointer or
static register(s9).

Link: https://github.com/loongson/la-abi-specs/blob/release/lapcs.adoc#general-purpose-registers
This commit is contained in:
mengqinggang
2024-01-25 14:44:12 +08:00
committed by liuzhensong
parent a0aa6f4abd
commit 969f5c0e12
6 changed files with 19 additions and 2 deletions
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7
gas/config/tc-loongarch.c
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@@ -316,8 +316,11 @@ loongarch_after_parse_args ()
/* Init ilp32/lp64 registers alias. */
r_abi_names = loongarch_r_alias;
for (i = 0; i < ARRAY_SIZE (loongarch_r_alias); i++)
str_hash_insert (r_htab, loongarch_r_alias[i], (void *) (i + 1),
0);
str_hash_insert (r_htab, loongarch_r_alias[i], (void *) (i + 1), 0);
for (i = 0; i < ARRAY_SIZE (loongarch_r_alias_1); i++)
str_hash_insert (r_htab, loongarch_r_alias_1[i], (void *) (i + 1), 0);
for (i = 0; i < ARRAY_SIZE (loongarch_r_alias_deprecated); i++)
str_hash_insert (r_deprecated_htab, loongarch_r_alias_deprecated[i],
(void *) (i + 1), 0);

1
gas/testsuite/gas/loongarch/loongarch.exp
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@@ -31,4 +31,5 @@ if [istarget loongarch*-*-*] {
}
run_list_test "align"
run_list_test "reg-s9"
}

1
gas/testsuite/gas/loongarch/reg-s9.l Normal file
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@@ -0,0 +1 @@
# No warning or error expected.

2
gas/testsuite/gas/loongarch/reg-s9.s Normal file
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@@ -0,0 +1,2 @@
# Add support for $s9 register
addi.d $t0, $s9, 0

1
include/opcode/loongarch.h
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@@ -196,6 +196,7 @@ dec2 : [1-9][0-9]?
extern const char *const loongarch_r_normal_name[32];
extern const char *const loongarch_r_alias[32];
extern const char *const loongarch_r_alias_1[32];
extern const char *const loongarch_r_alias_deprecated[32];
extern const char *const loongarch_f_normal_name[32];
extern const char *const loongarch_f_alias[32];

9
opcodes/loongarch-opc.c
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@@ -49,6 +49,15 @@ const char *const loongarch_r_alias[32] =
"$s1", "$s2", "$s3", "$s4", "$s5", "$s6", "$s7", "$s8",
};
/* Add support for $s9. */
const char *const loongarch_r_alias_1[32] =
{
"", "", "", "", "", "", "", "",
"", "", "", "", "", "", "", "",
"", "", "", "", "", "", "$s9", "",
"", "", "", "", "", "", "", "",
};
const char *const loongarch_r_alias_deprecated[32] =
{
"", "", "", "", "$v0", "$v1", "", "", "", "", "", "", "", "", "", "",