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Support riscv _aq _rl _aqrl suffixes for mnemonics

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This commit is contained in:
gingerBill
2026-08-21 01:05:47 +01:00
parent acb6c1408f
commit d0fb380c20
6 changed files with 142 additions and 3 deletions
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48
core/rexcode/isa/riscv/tablegen/cpp-compiler/cpp-gen.odin
View File

@@ -437,6 +437,54 @@ main :: proc() {
return true;
}
enum MnemonicSuffix : u8 {
MnemonicSuffix_None = 0,
MnemonicSuffix_AQ = 1<<0, // Acquire
MnemonicSuffix_RL = 1<<1, // Release
};
bool mnemonic_accepts_suffix(u16 m) const {
auto forms = encoding_forms(m);
for (auto const &form : forms) {
for (auto const &enc : form.enc) {
if (enc == ENC_AQRL) {
return true;
}
}
}
auto clobbers = clobber_forms(m);
for (auto const &c : clobbers) {
if ((cast(u16)c.side_effects & (SideEffectFlag_ATOMIC | SideEffectFlag_RESERVATION)) != 0) {
return true;
}
}
return false;
}
Mnemonic mnemonic_lookup_ordered(String const &name, u8 *suffixes_) {
u8 suffixes = 0;
String base = {};
if (string_ends_with(name, str_lit(\"_aqrl\"))) {
suffixes = MnemonicSuffix_AQ | MnemonicSuffix_RL;
base = substring(name, 0, name.len - 5);
} else if (string_ends_with(name, str_lit(\"_aq\"))) {
suffixes = MnemonicSuffix_AQ;
base = substring(name, 0, name.len - 3);
} else if (string_ends_with(name, str_lit(\"_rl\"))) {
suffixes = MnemonicSuffix_RL;
base = substring(name, 0, name.len - 3);
} else {
return M_INVALID;
}
Mnemonic m = mnemonic_lookup(base);
if (m == M_INVALID || !mnemonic_accepts_suffix(cast(u16)m)) {
return M_INVALID;
}
if (suffixes_) *suffixes_ = suffixes;
return m;
}
Mnemonic mnemonic_lookup(String const &name) {
Mnemonic *found = string_map_get(&mnemonic_map, name);
return found ? *found : M_INVALID;

15
core/rexcode/isa/x86/tablegen/cpp-compiler/cpp-gen.odin
View File

@@ -480,6 +480,21 @@ main :: proc() {
return true;
}
enum MnemonicSuffix : u8 {
MnemonicSuffix_None = 0,
};
bool mnemonic_accepts_suffix(u16 m) const {
return false;
}
Mnemonic mnemonic_lookup_ordered(String const &name, u8 *suffixes_) {
// NOTE(bill): Do any instructions need a suffix idea?
return M_INVALID;
}
Mnemonic mnemonic_lookup(String const &name) {
Mnemonic *found = string_map_get(&mnemonic_map, name);
return found ? *found : M_INVALID;