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Further reductions to codeblock_t size - replace link pointers with uint16_t block indicies, shrink ins to uint8_t, remove endpc. codeblock_t now fits in a 64-byte cacheline on 32-bit platforms.

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This commit is contained in:
SarahW 2018-11-29 20:05:12 +00:00
commit 9ff1c7f409
9 changed files with 186 additions and 160 deletions
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14
src/codegen_backend_arm.c
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@ -294,19 +294,19 @@ void codegen_backend_init()
#endif
#if defined WIN32 || defined _WIN32 || defined _WIN32
codeblock_data = VirtualAlloc(NULL, (BLOCK_SIZE+1) * BLOCK_DATA_SIZE, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
codeblock_data = VirtualAlloc(NULL, BLOCK_SIZE * BLOCK_DATA_SIZE, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
#else
codeblock_data = malloc((BLOCK_SIZE+1) * BLOCK_DATA_SIZE);
codeblock_data = malloc(BLOCK_SIZE * BLOCK_DATA_SIZE);
#endif
if (!codeblock_data)
fatal("codeblock_data failed to alloc - %i\n", (BLOCK_SIZE+1) * BLOCK_DATA_SIZE);
codeblock = malloc((BLOCK_SIZE+1) * sizeof(codeblock_t));
codeblock = malloc(BLOCK_SIZE * sizeof(codeblock_t));
codeblock_hash = malloc(HASH_SIZE * sizeof(codeblock_t *));
memset(codeblock, 0, (BLOCK_SIZE+1) * sizeof(codeblock_t));
memset(codeblock, 0, BLOCK_SIZE * sizeof(codeblock_t));
memset(codeblock_hash, 0, HASH_SIZE * sizeof(codeblock_t *));
for (c = 0; c < BLOCK_SIZE+1; c++)
for (c = 0; c < BLOCK_SIZE; c++)
{
codeblock[c].pc = BLOCK_PC_INVALID;
codeblock[c].data = &codeblock_data[c * BLOCK_DATA_SIZE];
@ -314,7 +314,7 @@ void codegen_backend_init()
#if defined(__linux__) || defined(__APPLE__)
start = (void *)((long)codeblock_data & pagemask);
len = (((BLOCK_SIZE+1) * BLOCK_DATA_SIZE) + pagesize) & pagemask;
len = ((BLOCK_SIZE * BLOCK_DATA_SIZE) + pagesize) & pagemask;
if (mprotect(start, len, PROT_READ | PROT_WRITE | PROT_EXEC) != 0)
{
perror("mprotect");
@ -323,7 +323,7 @@ void codegen_backend_init()
#endif
// pclog("Codegen is %p\n", (void *)pages[0xfab12 >> 12].block);
block_current = BLOCK_SIZE;
block_current = 0;
block_pos = 0;
build_loadstore_routines(&codeblock[block_current]);