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ruby--ruby/ujit_asm_tests.c
Maxime Chevalier-Boisvert 12283c58da Removed inc/dec instructions because usage not recommended.
2021-10-20 18:19:24 -04:00

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