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add constant buffer compression

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This commit is contained in:
William Bell
2025-06-14 20:49:10 +01:00
parent 5bd43d2f12
commit dd1ba0c0a6
1 changed files with 37 additions and 28 deletions
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19
src/translator/translator.c
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@@ -1,7 +1,7 @@
#include "translator.h" #include "translator.h"
#include "string/string.h"
#include "declaration/declaration.h" #include "declaration/declaration.h"
#include "number/number.h" #include "number/number.h"
#include "string/string.h"
#include <stddef.h> #include <stddef.h>
#include <stdint.h> #include <stdint.h>
#include <stdio.h> #include <stdio.h>
@@ -20,13 +20,13 @@ void arena_resize(ConstantArena *arena, size_t new_size) {
return; return;
arena->data = realloc(arena->data, new_capacity); arena->data = realloc(arena->data, new_capacity);
if (!arena->data) { if (!arena->data) {
fprintf(stderr, "error: failed to resize arena from %zu to %zu\n", new_capacity, arena->capacity); fprintf(stderr, "error: failed to resize arena from %zu to %zu\n",
new_capacity, arena->capacity);
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
arena->capacity = new_capacity; arena->capacity = new_capacity;
} }
void arena_free(ConstantArena *arena) { void arena_free(ConstantArena *arena) {
free(arena->data); free(arena->data);
arena->capacity = 0; arena->capacity = 0;
@@ -38,6 +38,13 @@ void * arena_get(ConstantArena *arena, size_t offset) {
} }
size_t arena_push(ConstantArena *arena, const void *data, size_t length) { size_t arena_push(ConstantArena *arena, const void *data, size_t length) {
if (arena->size >= length) {
for (size_t i = 0; i <= (arena->size - length); i++) {
if (memcmp(data, arena->data + i, length) == 0) {
return i;
}
}
}
arena_resize(arena, arena->size + length); arena_resize(arena, arena->size + length);
size_t offset = arena->size; size_t offset = arena->size;
memcpy(arena->data + arena->size, data, length); memcpy(arena->data + arena->size, data, length);
@@ -53,7 +60,8 @@ Translated init_translator() {
return translated; return translated;
} }
void set_instruction_code(Translated * translator, size_t offset, uint64_t code) { void set_instruction_code(Translated *translator, size_t offset,
uint64_t code) {
code = htole64(code); code = htole64(code);
size_t *ptr = (translator->bytecode.data + offset); size_t *ptr = (translator->bytecode.data + offset);
*ptr = code; *ptr = code;
@@ -67,7 +75,8 @@ size_t push_instruction_code(Translated * translator, uint64_t code) {
} }
void set_registers(Translated *translator, size_t count) { void set_registers(Translated *translator, size_t count) {
if (count>translator->registerCount) translator->registerCount = count; if (count > translator->registerCount)
translator->registerCount = count;
} }
size_t translate_parsed(Translated *translated, ParsedValue *parsedValue) { size_t translate_parsed(Translated *translated, ParsedValue *parsedValue) {