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Use new clobber forms in check_asm.cpp

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gingerBill
2026-08-18 11:23:20 +01:00
parent b1b08c13c0
commit 8e807fb7aa
3 changed files with 1201 additions and 902 deletions
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19
core/rexcode/isa/x86/tablegen/cpp-compiler/cpp-gen.odin
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@@ -15,7 +15,7 @@ ISA_NAME :: "amd64"
main :: proc() {
raw_encode_runs := #load("../../tables/x86.encode_runs.bin", []x86.Encode_Run)
raw_encode_forms := #load("../../tables/x86.encode_forms.bin", []u8)
raw_clobber_table := #load("../../tables/x86.clobber_table.bin", []u8)
raw_clobber_forms := #load("../../tables/x86.clobber_forms.bin", []u8)
sb := strings.builder_make()
@@ -384,7 +384,7 @@ main :: proc() {
strings.write_string(&sb, "\n\n")
fmt.sbprintf(&sb, "\tstatic EncodeRun const raw_encode_runs[%d];\n", len(raw_encode_runs))
fmt.sbprintf(&sb, "\tstatic u8 const raw_encode_forms[%d];\n", len(raw_encode_forms))
fmt.sbprintf(&sb, "\tstatic u8 const raw_clobber_table[%d];\n", len(raw_clobber_table))
fmt.sbprintf(&sb, "\tstatic u8 const raw_clobber_forms[%d];\n", len(raw_clobber_forms))
strings.write_string(&sb, "\tStringMap<Mnemonic> mnemonic_map;\n")
strings.write_string(&sb, "\tStringMap<Prefix> prefix_map;\n")
@@ -425,9 +425,10 @@ main :: proc() {
Encoding *ENCODE_FORMS = cast(Encoding *)raw_encode_forms;
return Slice<Encoding>{ENCODE_FORMS+r.start, r.count};
}
Clobber clobber(/*Mnemonic*/ u16 m) const {
Clobber *c = cast(Clobber *)raw_clobber_table;
return c[m];
Slice<Clobber> clobber_forms(/*Mnemonic*/ u16 m) const {
EncodeRun r = raw_encode_runs[m];
Clobber *CLOBBER_FORMS = cast(Clobber *)raw_clobber_forms;
return Slice<Clobber>{CLOBBER_FORMS+r.start, r.count};
}
u16 reg_class(/*Register*/ u16 r) const {
return 0xFF00 & r;
@@ -676,10 +677,6 @@ main :: proc() {
#partial switch mnemonic {
case .INVALID:
strings.write_string(&sb, "str_lit(\"\"), ")
case .MOVSD_SSE:
strings.write_string(&sb, "str_lit(\"movsd\"), ")
case .CMPSD_SSE:
strings.write_string(&sb, "str_lit(\"cmpsd\"), ")
case:
str := strings.to_lower(reflect.enum_string(mnemonic))
fmt.sbprintf(&sb, "str_lit(%q), ", str)
@@ -812,11 +809,11 @@ main :: proc() {
defer strings.write_string(&sb, "\n");
}
{
fmt.sbprintf(&sb, "u8 const Asm_{0:s}::raw_clobber_table[%d] = {{\n", ISA_NAME, len(raw_clobber_table))
fmt.sbprintf(&sb, "u8 const Asm_{0:s}::raw_clobber_forms[%d] = {{\n", ISA_NAME, len(raw_clobber_forms))
defer strings.write_string(&sb, "};\n");
ROW_COUNT :: 64
count := 0
for the_byte in raw_clobber_table {
for the_byte in raw_clobber_forms {
if count == 0 {
strings.write_string(&sb, "\t")
}

2081
src/asm_tables_amd64.cpp
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File diff suppressed because it is too large Load Diff

3
src/check_asm.cpp
View File

@@ -932,7 +932,8 @@ gb_internal void check_mnemonic(AsmCtx *asm_ctx, CheckerContext *ctx, Entity *tm
instr->valid_form_index = cast(i32)valid_form_index;
// Handle clobbering from mnemonic
auto clobber = asm_ctx->clobber(mnemonic);
auto clobber_forms = asm_ctx->clobber_forms(mnemonic);
auto clobber = clobber_forms[valid_form_index];
tmpl_entity->AsmTemplate.clobber_flags |= clobber.implies_clobber_flags();
tmpl_entity->AsmTemplate.clobber_memory |= clobber.implies_clobber_memory();