void test_emit_add_imm(void)
{
assert_emit_insn_3(0x83, 0xc0, 0x04, imm_reg_insn(INSN_ADD_IMM_REG, 0x04, &VAR_EAX));
assert_emit_insn_3(0x83, 0xc3, 0x08, imm_reg_insn(INSN_ADD_IMM_REG, 0x08, &VAR_EBX));
assert_emit_insn_6(0x81, 0xc3, 0x80, 0x00, 0x00, 0x00, imm_reg_insn(INSN_ADD_IMM_REG, 0x80, &VAR_EBX));
assert_emit_insn_6(0x81, 0xc0, 0xef, 0xbe, 0xad, 0xde, imm_reg_insn(INSN_ADD_IMM_REG, 0xdeadbeef, &VAR_EAX));
}
void test_emit_mov_imm(void)
{
assert_emit_insn_5(0xb8, 0x04, 0x00, 0x00, 0x00, imm_reg_insn(INSN_MOV_IMM_REG, 0x04, &VAR_EAX));
assert_emit_insn_5(0xb8, 0xef, 0xbe, 0xad, 0xde, imm_reg_insn(INSN_MOV_IMM_REG, 0xdeadbeef, &VAR_EAX));
assert_emit_insn_5(0xbb, 0xbe, 0xba, 0xfe, 0xca, imm_reg_insn(INSN_MOV_IMM_REG, 0xcafebabe, &VAR_EBX));
assert_emit_insn_5(0xb9, 0xbe, 0xba, 0xfe, 0xca, imm_reg_insn(INSN_MOV_IMM_REG, 0xcafebabe, &VAR_ECX));
assert_emit_insn_5(0xba, 0xbe, 0xba, 0xfe, 0xca, imm_reg_insn(INSN_MOV_IMM_REG, 0xcafebabe, &VAR_EDX));
}
static void
assert_emit_target_for_backward_branches(unsigned char expected_prefix,
unsigned char expected_opc,
enum insn_type insn_type)
{
struct basic_block *target_bb;
struct compilation_unit *cu;
struct var_info *eax, *ebx;
cu = compilation_unit_alloc(&method);
eax = get_fixed_var(cu, MACH_REG_EAX);
ebx = get_fixed_var(cu, MACH_REG_EBX);
target_bb = get_basic_block(cu, 0, 1);
bb_add_insn(target_bb, imm_reg_insn(INSN_ADD_IMM_REG, 0x01, eax));
assert_emits_branch_target(expected_prefix, expected_opc, 0xf8, 0xff, 0xff, 0xff, target_bb, insn_type);
bb_add_insn(target_bb, imm_reg_insn(INSN_ADD_IMM_REG, 0x02, ebx));
assert_emits_branch_target(expected_prefix, expected_opc, 0xf5, 0xff, 0xff, 0xff, target_bb, insn_type);
free_compilation_unit(cu);
}
static void
assert_backpatches_unresolved_branches_when_emitting_target(
unsigned char expected_prefix,
unsigned char expected_opc,
enum insn_type insn_type)
{
struct basic_block *target_bb, *branch_bb;
struct compilation_unit *cu;
struct var_info *eax;
cu = compilation_unit_alloc(&method);
eax = get_fixed_var(cu, MACH_REG_EAX);
branch_bb = get_basic_block(cu, 0, 1);
target_bb = get_basic_block(cu, 1, 2);
bb_add_insn(branch_bb, branch_insn(insn_type, target_bb));
assert_backpatches_branches(expected_prefix, expected_opc, 0x00, branch_bb, target_bb);
bb_add_insn(branch_bb, imm_reg_insn(INSN_ADD_IMM_REG, 0x01, eax));
assert_backpatches_branches(expected_prefix, expected_opc, 0x03, branch_bb, target_bb);
free_compilation_unit(cu);
}
void test_emit_cmp_imm_reg(void)
{
assert_emit_insn_3(0x83, 0xf8, 0x04, imm_reg_insn(INSN_CMP_IMM_REG, 0x04, &VAR_EAX));
assert_emit_insn_3(0x83, 0xfb, 0x08, imm_reg_insn(INSN_CMP_IMM_REG, 0x08, &VAR_EBX));
assert_emit_insn_6(0x81, 0xfb, 0xef, 0xbe, 0xad, 0xde, imm_reg_insn(INSN_CMP_IMM_REG, 0xdeadbeef, &VAR_EBX));
}
void test_emit_sar_imm_reg(void)
{
assert_emit_insn_3(0xc1, 0xf8, 0x04, imm_reg_insn(INSN_SAR_IMM_REG, 0x04, &VAR_EAX));
assert_emit_insn_3(0xc1, 0xfb, 0x05, imm_reg_insn(INSN_SAR_IMM_REG, 0x05, &VAR_EBX));
}
void test_imm_reg_defines_target(void)
{
assert_defines_r0(imm_reg_insn(INSN_ADD_IMM_REG, 0xdeadbeef, &r0));
assert_uses_r0(imm_reg_insn(INSN_CMP_IMM_REG, 0xdeadbeef, &r0));
assert_defines_r0(imm_reg_insn(INSN_MOV_IMM_REG, 0xdeadbeef, &r0));
}