зеркало из https://github.com/github/ruby.git
362 строки
14 KiB
C
362 строки
14 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include "yjit_asm.h"
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// Print the bytes in a code block
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void print_bytes(codeblock_t* cb)
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{
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for (uint32_t i = 0; i < cb->write_pos; ++i)
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{
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printf("%02X", (int)cb->mem_block[i]);
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}
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printf("\n");
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}
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// Check that the code block contains the given sequence of bytes
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void check_bytes(codeblock_t* cb, const char* bytes)
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{
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printf("checking encoding: %s\n", bytes);
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size_t len = strlen(bytes);
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assert (len % 2 == 0);
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size_t num_bytes = len / 2;
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if (cb->write_pos != num_bytes)
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{
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fprintf(stderr, "incorrect encoding length, expected %ld, got %d\n",
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num_bytes,
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cb->write_pos
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);
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printf("%s\n", bytes);
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print_bytes(cb);
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exit(-1);
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}
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for (uint32_t i = 0; i < num_bytes; ++i)
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{
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char byte_str[] = {0, 0, 0, 0};
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strncpy(byte_str, bytes + (2 * i), 2);
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char* endptr;
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long int byte = strtol(byte_str, &endptr, 16);
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uint8_t cb_byte = cb->mem_block[i];
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if (cb_byte != byte)
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{
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fprintf(stderr, "incorrect encoding at position %d, expected %02X, got %02X\n",
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i,
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(int)byte,
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(int)cb_byte
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);
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printf("%s\n", bytes);
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print_bytes(cb);
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exit(-1);
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}
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}
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}
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void run_tests()
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{
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printf("Running assembler tests\n");
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codeblock_t cb_obj;
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codeblock_t* cb = &cb_obj;
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uint8_t* mem_block = alloc_exec_mem(4096);
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cb_init(cb, mem_block, 4096);
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// add
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cb_set_pos(cb, 0); add(cb, CL, imm_opnd(3)); check_bytes(cb, "80C103");
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cb_set_pos(cb, 0); add(cb, CL, BL); check_bytes(cb, "00D9");
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cb_set_pos(cb, 0); add(cb, CL, SPL); check_bytes(cb, "4000E1");
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cb_set_pos(cb, 0); add(cb, CX, BX); check_bytes(cb, "6601D9");
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cb_set_pos(cb, 0); add(cb, RAX, RBX); check_bytes(cb, "4801D8");
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cb_set_pos(cb, 0); add(cb, ECX, EDX); check_bytes(cb, "01D1");
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cb_set_pos(cb, 0); add(cb, RDX, R14); check_bytes(cb, "4C01F2");
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cb_set_pos(cb, 0); add(cb, mem_opnd(64, RAX, 0), RDX); check_bytes(cb, "480110");
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cb_set_pos(cb, 0); add(cb, RDX, mem_opnd(64, RAX, 0)); check_bytes(cb, "480310");
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cb_set_pos(cb, 0); add(cb, RDX, mem_opnd(64, RAX, 8)); check_bytes(cb, "48035008");
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cb_set_pos(cb, 0); add(cb, RDX, mem_opnd(64, RAX, 255)); check_bytes(cb, "480390FF000000");
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cb_set_pos(cb, 0); add(cb, mem_opnd(64, RAX, 127), imm_opnd(255)); check_bytes(cb, "4881407FFF000000");
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cb_set_pos(cb, 0); add(cb, mem_opnd(32, RAX, 0), EDX); check_bytes(cb, "0110");
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cb_set_pos(cb, 0); add(cb, RSP, imm_opnd(8)); check_bytes(cb, "4883C408");
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cb_set_pos(cb, 0); add(cb, ECX, imm_opnd(8)); check_bytes(cb, "83C108");
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cb_set_pos(cb, 0); add(cb, ECX, imm_opnd(255)); check_bytes(cb, "81C1FF000000");
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// and
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cb_set_pos(cb, 0); and(cb, EBP, R12D); check_bytes(cb, "4421E5");
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cb_set_pos(cb, 0); and(cb, mem_opnd(64, RAX, 0), imm_opnd(0x08)); check_bytes(cb, "48832008");
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// call
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{
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cb_set_pos(cb, 0);
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uint32_t fn_label = cb_new_label(cb, "foo");
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call_label(cb, fn_label);
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cb_link_labels(cb);
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check_bytes(cb, "E8FBFFFFFF");
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}
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cb_set_pos(cb, 0); call(cb, RAX); check_bytes(cb, "FFD0");
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cb_set_pos(cb, 0); call(cb, mem_opnd(64, RSP, 8)); check_bytes(cb, "FF542408");
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// cmovcc
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cb_set_pos(cb, 0); cmovg(cb, ESI, EDI); check_bytes(cb, "0F4FF7");
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cb_set_pos(cb, 0); cmovg(cb, ESI, mem_opnd(32, RBP, 12)); check_bytes(cb, "0F4F750C");
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cb_set_pos(cb, 0); cmovl(cb, EAX, ECX); check_bytes(cb, "0F4CC1");
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cb_set_pos(cb, 0); cmovl(cb, RBX, RBP); check_bytes(cb, "480F4CDD");
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cb_set_pos(cb, 0); cmovle(cb, ESI, mem_opnd(32, RSP, 4)); check_bytes(cb, "0F4E742404");
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// cmp
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cb_set_pos(cb, 0); cmp(cb, CL, DL); check_bytes(cb, "38D1");
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cb_set_pos(cb, 0); cmp(cb, ECX, EDI); check_bytes(cb, "39F9");
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cb_set_pos(cb, 0); cmp(cb, RDX, mem_opnd(64, R12, 0)); check_bytes(cb, "493B1424");
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cb_set_pos(cb, 0); cmp(cb, RAX, imm_opnd(2)); check_bytes(cb, "4883F802");
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// cqo
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cb_set_pos(cb, 0); cqo(cb); check_bytes(cb, "4899");
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// div
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/*
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test(
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delegate void (CodeBlock cb) { cb.div(X86Opnd(EDX)); },
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"F7F2"
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);
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test(
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delegate void (CodeBlock cb) { cb.div(X86Opnd(32, RSP, -12)); },
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"F77424F4"
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);
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*/
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// jcc to label
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{
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cb_set_pos(cb, 0);
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uint32_t loop_label = cb_new_label(cb, "loop");
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jge_label(cb, loop_label);
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cb_link_labels(cb);
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check_bytes(cb, "0F8DFAFFFFFF");
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}
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{
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cb_set_pos(cb, 0);
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uint32_t loop_label = cb_new_label(cb, "loop");
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jo_label(cb, loop_label);
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cb_link_labels(cb);
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check_bytes(cb, "0F80FAFFFFFF");
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}
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// jmp to label
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{
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cb_set_pos(cb, 0);
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uint32_t loop_label = cb_new_label(cb, "loop");
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jmp_label(cb, loop_label);
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cb_link_labels(cb);
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check_bytes(cb, "E9FBFFFFFF");
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}
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// jmp with RM operand
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cb_set_pos(cb, 0); jmp_rm(cb, R12); check_bytes(cb, "41FFE4");
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// lea
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cb_set_pos(cb, 0); lea(cb, RDX, mem_opnd(64, RCX, 8)); check_bytes(cb, "488D5108");
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cb_set_pos(cb, 0); lea(cb, RAX, mem_opnd(8, RIP, 0)); check_bytes(cb, "488D0500000000");
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cb_set_pos(cb, 0); lea(cb, RAX, mem_opnd(8, RIP, 5)); check_bytes(cb, "488D0505000000");
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cb_set_pos(cb, 0); lea(cb, RDI, mem_opnd(8, RIP, 5)); check_bytes(cb, "488D3D05000000");
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// mov
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cb_set_pos(cb, 0); mov(cb, EAX, imm_opnd(7)); check_bytes(cb, "B807000000");
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cb_set_pos(cb, 0); mov(cb, EAX, imm_opnd(-3)); check_bytes(cb, "B8FDFFFFFF");
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cb_set_pos(cb, 0); mov(cb, R15, imm_opnd(3)); check_bytes(cb, "49BF0300000000000000");
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cb_set_pos(cb, 0); mov(cb, EAX, EBX); check_bytes(cb, "89D8");
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cb_set_pos(cb, 0); mov(cb, EAX, ECX); check_bytes(cb, "89C8");
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cb_set_pos(cb, 0); mov(cb, EDX, mem_opnd(32, RBX, 128)); check_bytes(cb, "8B9380000000");
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/*
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test(
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delegate void (CodeBlock cb) { cb.mov(X86Opnd(AL), X86Opnd(8, RCX, 0, 1, RDX)); },
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"8A0411"
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);
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*/
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cb_set_pos(cb, 0); mov(cb, CL, R9B); check_bytes(cb, "4488C9");
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cb_set_pos(cb, 0); mov(cb, RBX, RAX); check_bytes(cb, "4889C3");
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cb_set_pos(cb, 0); mov(cb, RDI, RBX); check_bytes(cb, "4889DF");
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cb_set_pos(cb, 0); mov(cb, SIL, imm_opnd(11)); check_bytes(cb, "40B60B");
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cb_set_pos(cb, 0); mov(cb, mem_opnd(8, RSP, 0), imm_opnd(-3)); check_bytes(cb, "C60424FD");
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cb_set_pos(cb, 0); mov(cb, mem_opnd(64, RDI, 8), imm_opnd(1)); check_bytes(cb, "48C7470801000000");
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// movsx
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cb_set_pos(cb, 0); movsx(cb, AX, AL); check_bytes(cb, "660FBEC0");
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cb_set_pos(cb, 0); movsx(cb, EDX, AL); check_bytes(cb, "0FBED0");
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cb_set_pos(cb, 0); movsx(cb, RAX, BL); check_bytes(cb, "480FBEC3");
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cb_set_pos(cb, 0); movsx(cb, ECX, AX); check_bytes(cb, "0FBFC8");
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cb_set_pos(cb, 0); movsx(cb, R11, CL); check_bytes(cb, "4C0FBED9");
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cb_set_pos(cb, 0); movsx(cb, R10, mem_opnd(32, RSP, 12)); check_bytes(cb, "4C6354240C");
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cb_set_pos(cb, 0); movsx(cb, RAX, mem_opnd(8, RSP, 0)); check_bytes(cb, "480FBE0424");
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// neg
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cb_set_pos(cb, 0); neg(cb, RAX); check_bytes(cb, "48F7D8");
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// nop
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cb_set_pos(cb, 0); nop(cb, 1); check_bytes(cb, "90");
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// not
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cb_set_pos(cb, 0); not(cb, AX); check_bytes(cb, "66F7D0");
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cb_set_pos(cb, 0); not(cb, EAX); check_bytes(cb, "F7D0");
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cb_set_pos(cb, 0); not(cb, mem_opnd(64, R12, 0)); check_bytes(cb, "49F71424");
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cb_set_pos(cb, 0); not(cb, mem_opnd(32, RSP, 301)); check_bytes(cb, "F794242D010000");
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cb_set_pos(cb, 0); not(cb, mem_opnd(32, RSP, 0)); check_bytes(cb, "F71424");
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cb_set_pos(cb, 0); not(cb, mem_opnd(32, RSP, 3)); check_bytes(cb, "F7542403");
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cb_set_pos(cb, 0); not(cb, mem_opnd(32, RBP, 0)); check_bytes(cb, "F75500");
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cb_set_pos(cb, 0); not(cb, mem_opnd(32, RBP, 13)); check_bytes(cb, "F7550D");
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cb_set_pos(cb, 0); not(cb, RAX); check_bytes(cb, "48F7D0");
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cb_set_pos(cb, 0); not(cb, R11); check_bytes(cb, "49F7D3");
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cb_set_pos(cb, 0); not(cb, mem_opnd(32, RAX, 0)); check_bytes(cb, "F710");
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cb_set_pos(cb, 0); not(cb, mem_opnd(32, RSI, 0)); check_bytes(cb, "F716");
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cb_set_pos(cb, 0); not(cb, mem_opnd(32, RDI, 0)); check_bytes(cb, "F717");
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cb_set_pos(cb, 0); not(cb, mem_opnd(32, RDX, 55)); check_bytes(cb, "F75237");
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cb_set_pos(cb, 0); not(cb, mem_opnd(32, RDX, 1337)); check_bytes(cb, "F79239050000");
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cb_set_pos(cb, 0); not(cb, mem_opnd(32, RDX, -55)); check_bytes(cb, "F752C9");
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cb_set_pos(cb, 0); not(cb, mem_opnd(32, RDX, -555)); check_bytes(cb, "F792D5FDFFFF");
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/*
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test(
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delegate void (CodeBlock cb) { cb.not(X86Opnd(32, RAX, 0, 1, RBX)); },
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"F71418"
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);
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test(
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delegate void (CodeBlock cb) { cb.not(X86Opnd(32, RAX, 0, 1, R12)); },
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"42F71420"
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);
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test(
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delegate void (CodeBlock cb) { cb.not(X86Opnd(32, R15, 0, 1, R12)); },
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"43F71427"
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);
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test(
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delegate void (CodeBlock cb) { cb.not(X86Opnd(32, R15, 5, 1, R12)); },
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"43F7542705"
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);
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test(
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delegate void (CodeBlock cb) { cb.not(X86Opnd(32, R15, 5, 8, R12)); },
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"43F754E705"
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);
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test(
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delegate void (CodeBlock cb) { cb.not(X86Opnd(32, R15, 5, 8, R13)); },
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"43F754EF05"
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);
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test(
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delegate void (CodeBlock cb) { cb.not(X86Opnd(32, R12, 5, 4, R9)); },
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"43F7548C05"
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);
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test(
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delegate void (CodeBlock cb) { cb.not(X86Opnd(32, R12, 301, 4, R9)); },
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"43F7948C2D010000"
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);
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test(
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delegate void (CodeBlock cb) { cb.not(X86Opnd(32, RAX, 5, 4, RDX)); },
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"F7549005"
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);
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test(
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delegate void (CodeBlock cb) { cb.not(X86Opnd(64, RAX, 0, 2, RDX)); },
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"48F71450"
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);
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test(
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delegate void (CodeBlock cb) { cb.not(X86Opnd(32, RSP, 0, 1, RBX)); },
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"F7141C"
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);
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test(
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delegate void (CodeBlock cb) { cb.not(X86Opnd(32, RSP, 3, 1, RBX)); },
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"F7541C03"
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);
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test(
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delegate void (CodeBlock cb) { cb.not(X86Opnd(32, RBP, 13, 1, RDX)); },
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"F754150D"
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);
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*/
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// or
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cb_set_pos(cb, 0); or(cb, EDX, ESI); check_bytes(cb, "09F2");
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// pop
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cb_set_pos(cb, 0); pop(cb, RAX); check_bytes(cb, "58");
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cb_set_pos(cb, 0); pop(cb, RBX); check_bytes(cb, "5B");
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cb_set_pos(cb, 0); pop(cb, RSP); check_bytes(cb, "5C");
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cb_set_pos(cb, 0); pop(cb, RBP); check_bytes(cb, "5D");
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cb_set_pos(cb, 0); pop(cb, R12); check_bytes(cb, "415C");
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cb_set_pos(cb, 0); pop(cb, mem_opnd(64, RAX, 0)); check_bytes(cb, "8F00");
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cb_set_pos(cb, 0); pop(cb, mem_opnd(64, R8, 0)); check_bytes(cb, "418F00");
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cb_set_pos(cb, 0); pop(cb, mem_opnd(64, R8, 3)); check_bytes(cb, "418F4003");
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cb_set_pos(cb, 0); pop(cb, mem_opnd_sib(64, RAX, RCX, 8, 3)); check_bytes(cb, "8F44C803");
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cb_set_pos(cb, 0); pop(cb, mem_opnd_sib(64, R8, RCX, 8, 3)); check_bytes(cb, "418F44C803");
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// push
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cb_set_pos(cb, 0); push(cb, RAX); check_bytes(cb, "50");
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cb_set_pos(cb, 0); push(cb, RBX); check_bytes(cb, "53");
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cb_set_pos(cb, 0); push(cb, R12); check_bytes(cb, "4154");
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cb_set_pos(cb, 0); push(cb, mem_opnd(64, RAX, 0)); check_bytes(cb, "FF30");
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cb_set_pos(cb, 0); push(cb, mem_opnd(64, R8, 0)); check_bytes(cb, "41FF30");
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cb_set_pos(cb, 0); push(cb, mem_opnd(64, R8, 3)); check_bytes(cb, "41FF7003");
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cb_set_pos(cb, 0); push(cb, mem_opnd_sib(64, RAX, RCX, 8, 3)); check_bytes(cb, "FF74C803");
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cb_set_pos(cb, 0); push(cb, mem_opnd_sib(64, R8, RCX, 8, 3)); check_bytes(cb, "41FF74C803");
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// ret
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cb_set_pos(cb, 0); ret(cb); check_bytes(cb, "C3");
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// sal
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cb_set_pos(cb, 0); sal(cb, CX, imm_opnd(1)); check_bytes(cb, "66D1E1");
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cb_set_pos(cb, 0); sal(cb, ECX, imm_opnd(1)); check_bytes(cb, "D1E1");
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cb_set_pos(cb, 0); sal(cb, EBP, imm_opnd(5)); check_bytes(cb, "C1E505");
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cb_set_pos(cb, 0); sal(cb, mem_opnd(32, RSP, 68), imm_opnd(1)); check_bytes(cb, "D1642444");
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// sar
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cb_set_pos(cb, 0); sar(cb, EDX, imm_opnd(1)); check_bytes(cb, "D1FA");
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// shr
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cb_set_pos(cb, 0); shr(cb, R14, imm_opnd(7)); check_bytes(cb, "49C1EE07");
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/*
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// sqrtsd
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test(
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delegate void (CodeBlock cb) { cb.sqrtsd(X86Opnd(XMM2), X86Opnd(XMM6)); },
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"F20F51D6"
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);
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*/
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// sub
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cb_set_pos(cb, 0); sub(cb, EAX, imm_opnd(1)); check_bytes(cb, "83E801");
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cb_set_pos(cb, 0); sub(cb, RAX, imm_opnd(2)); check_bytes(cb, "4883E802");
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// test
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cb_set_pos(cb, 0); test(cb, AL, AL); check_bytes(cb, "84C0");
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cb_set_pos(cb, 0); test(cb, AX, AX); check_bytes(cb, "6685C0");
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cb_set_pos(cb, 0); test(cb, CL, imm_opnd(8)); check_bytes(cb, "F6C108");
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cb_set_pos(cb, 0); test(cb, DL, imm_opnd(7)); check_bytes(cb, "F6C207");
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cb_set_pos(cb, 0); test(cb, RCX, imm_opnd(8)); check_bytes(cb, "F6C108");
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cb_set_pos(cb, 0); test(cb, mem_opnd(8, RDX, 8), imm_opnd(8)); check_bytes(cb, "F6420808");
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cb_set_pos(cb, 0); test(cb, mem_opnd(8, RDX, 8), imm_opnd(255)); check_bytes(cb, "F64208FF");
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cb_set_pos(cb, 0); test(cb, DX, imm_opnd(0xFFFF)); check_bytes(cb, "66F7C2FFFF");
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cb_set_pos(cb, 0); test(cb, mem_opnd(16, RDX, 8), imm_opnd(0xFFFF)); check_bytes(cb, "66F74208FFFF");
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cb_set_pos(cb, 0); test(cb, mem_opnd(8, RSI, 0), imm_opnd(1)); check_bytes(cb, "F60601");
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cb_set_pos(cb, 0); test(cb, mem_opnd(8, RSI, 16), imm_opnd(1)); check_bytes(cb, "F6461001");
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cb_set_pos(cb, 0); test(cb, mem_opnd(8, RSI, -16), imm_opnd(1)); check_bytes(cb, "F646F001");
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cb_set_pos(cb, 0); test(cb, mem_opnd(32, RSI, 64), EAX); check_bytes(cb, "854640");
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cb_set_pos(cb, 0); test(cb, mem_opnd(64, RDI, 42), RAX); check_bytes(cb, "4885472A");
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cb_set_pos(cb, 0); test(cb, RAX, RAX); check_bytes(cb, "4885C0");
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cb_set_pos(cb, 0); test(cb, RAX, RSI); check_bytes(cb, "4885F0");
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cb_set_pos(cb, 0); test(cb, mem_opnd(64, RSI, 64), imm_opnd(~0x08)); check_bytes(cb, "48F74640F7FFFFFF");
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// xchg
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cb_set_pos(cb, 0); xchg(cb, RAX, RCX); check_bytes(cb, "4891");
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cb_set_pos(cb, 0); xchg(cb, RAX, R13); check_bytes(cb, "4995");
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cb_set_pos(cb, 0); xchg(cb, RCX, RBX); check_bytes(cb, "4887D9");
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cb_set_pos(cb, 0); xchg(cb, R9, R15); check_bytes(cb, "4D87F9");
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// xor
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cb_set_pos(cb, 0); xor(cb, EAX, EAX); check_bytes(cb, "31C0");
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printf("Assembler tests done\n");
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}
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int main(int argc, char** argv)
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{
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run_tests();
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return 0;
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}
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