99 lines
3.6 KiB
Diff
99 lines
3.6 KiB
Diff
From 0f44b5db22c6059f8b8742e08eca9ae282973c7a Mon Sep 17 00:00:00 2001
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From: mengqinggang <mengqinggang@loongson.cn>
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Date: Thu, 25 Jan 2024 14:44:12 +0800
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Subject: [PATCH 053/123] LoongArch: gas: Add support for s9 register
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In LoongArch ABI, r22 register can be used as frame pointer or
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static register(s9).
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Link: https://github.com/loongson/la-abi-specs/blob/release/lapcs.adoc#general-purpose-registers
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---
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gas/config/tc-loongarch.c | 7 +++++--
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gas/testsuite/gas/loongarch/loongarch.exp | 1 +
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gas/testsuite/gas/loongarch/reg-s9.l | 1 +
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gas/testsuite/gas/loongarch/reg-s9.s | 2 ++
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include/opcode/loongarch.h | 1 +
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opcodes/loongarch-opc.c | 9 +++++++++
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6 files changed, 19 insertions(+), 2 deletions(-)
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create mode 100644 gas/testsuite/gas/loongarch/reg-s9.l
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create mode 100644 gas/testsuite/gas/loongarch/reg-s9.s
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diff --git a/gas/config/tc-loongarch.c b/gas/config/tc-loongarch.c
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index 5b7f5137..0495f63a 100644
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--- a/gas/config/tc-loongarch.c
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+++ b/gas/config/tc-loongarch.c
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@@ -316,8 +316,11 @@ loongarch_after_parse_args ()
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/* Init ilp32/lp64 registers alias. */
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r_abi_names = loongarch_r_alias;
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for (i = 0; i < ARRAY_SIZE (loongarch_r_alias); i++)
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- str_hash_insert (r_htab, loongarch_r_alias[i], (void *) (i + 1),
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- 0);
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+ str_hash_insert (r_htab, loongarch_r_alias[i], (void *) (i + 1), 0);
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+
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+ for (i = 0; i < ARRAY_SIZE (loongarch_r_alias_1); i++)
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+ str_hash_insert (r_htab, loongarch_r_alias_1[i], (void *) (i + 1), 0);
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+
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for (i = 0; i < ARRAY_SIZE (loongarch_r_alias_deprecated); i++)
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str_hash_insert (r_deprecated_htab, loongarch_r_alias_deprecated[i],
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(void *) (i + 1), 0);
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diff --git a/gas/testsuite/gas/loongarch/loongarch.exp b/gas/testsuite/gas/loongarch/loongarch.exp
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index fedeeecb..1051a541 100644
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--- a/gas/testsuite/gas/loongarch/loongarch.exp
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+++ b/gas/testsuite/gas/loongarch/loongarch.exp
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@@ -31,4 +31,5 @@ if [istarget loongarch*-*-*] {
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}
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run_list_test "align"
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+ run_list_test "reg-s9"
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}
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diff --git a/gas/testsuite/gas/loongarch/reg-s9.l b/gas/testsuite/gas/loongarch/reg-s9.l
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new file mode 100644
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index 00000000..8ea739b7
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--- /dev/null
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+++ b/gas/testsuite/gas/loongarch/reg-s9.l
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@@ -0,0 +1 @@
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+# No warning or error expected.
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diff --git a/gas/testsuite/gas/loongarch/reg-s9.s b/gas/testsuite/gas/loongarch/reg-s9.s
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new file mode 100644
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index 00000000..74f40481
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--- /dev/null
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+++ b/gas/testsuite/gas/loongarch/reg-s9.s
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@@ -0,0 +1,2 @@
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+# Add support for $s9 register
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+addi.d $t0, $s9, 0
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diff --git a/include/opcode/loongarch.h b/include/opcode/loongarch.h
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index 32ff4d8a..5fc6e190 100644
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--- a/include/opcode/loongarch.h
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+++ b/include/opcode/loongarch.h
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@@ -196,6 +196,7 @@ dec2 : [1-9][0-9]?
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extern const char *const loongarch_r_normal_name[32];
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extern const char *const loongarch_r_alias[32];
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+ extern const char *const loongarch_r_alias_1[32];
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extern const char *const loongarch_r_alias_deprecated[32];
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extern const char *const loongarch_f_normal_name[32];
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extern const char *const loongarch_f_alias[32];
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diff --git a/opcodes/loongarch-opc.c b/opcodes/loongarch-opc.c
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index cc3d1986..6afc0e8a 100644
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--- a/opcodes/loongarch-opc.c
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+++ b/opcodes/loongarch-opc.c
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@@ -49,6 +49,15 @@ const char *const loongarch_r_alias[32] =
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"$s1", "$s2", "$s3", "$s4", "$s5", "$s6", "$s7", "$s8",
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};
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+/* Add support for $s9. */
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+const char *const loongarch_r_alias_1[32] =
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+{
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+ "", "", "", "", "", "", "", "",
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+ "", "", "", "", "", "", "", "",
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+ "", "", "", "", "", "", "$s9", "",
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+ "", "", "", "", "", "", "", "",
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+};
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+
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const char *const loongarch_r_alias_deprecated[32] =
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{
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"", "", "", "", "$v0", "$v1", "", "", "", "", "", "", "", "", "", "",
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--
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2.33.0
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