Authors: Andreas Krall
Christian Thalinger
- $Id: codegen.c 2008 2005-03-07 08:43:08Z christian $
+ $Id: codegen.c 2048 2005-03-20 16:24:02Z twisti $
*/
x86_64_alu_imm_reg(cd, X86_64_SUB, parentargs_base * 8, REG_SP);
}
- /* save return address and used callee saved registers */
+ /* save used callee saved registers */
p = parentargs_base;
for (i = rd->savintregcnt - 1; i >= rd->maxsavintreguse; i--) {
d = reg_of_var(rd, iptr->dst, REG_NULL);
if (iptr->dst->flags & INMEMORY) {
if (src->flags & INMEMORY) {
- if (x86_64_is_imm32(iptr->val.l)) {
+ if (IS_IMM32(iptr->val.l)) {
x86_64_imul_imm_membase_reg(cd, iptr->val.l, REG_SP, src->regoff * 8, REG_ITMP1);
} else {
x86_64_mov_reg_membase(cd, REG_ITMP1, REG_SP, iptr->dst->regoff * 8);
} else {
- if (x86_64_is_imm32(iptr->val.l)) {
+ if (IS_IMM32(iptr->val.l)) {
x86_64_imul_imm_reg_reg(cd, iptr->val.l, src->regoff, REG_ITMP1);
} else {
} else {
if (src->flags & INMEMORY) {
- if (x86_64_is_imm32(iptr->val.l)) {
+ if (IS_IMM32(iptr->val.l)) {
x86_64_imul_imm_membase_reg(cd, iptr->val.l, REG_SP, src->regoff * 8, iptr->dst->regoff);
} else {
x86_64_alul_reg_reg(cd, X86_64_ADD, iptr->dst->regoff, iptr->dst->regoff);
} else {
- if (x86_64_is_imm32(iptr->val.l)) {
+ if (IS_IMM32(iptr->val.l)) {
x86_64_imul_imm_reg_reg(cd, iptr->val.l, src->regoff, iptr->dst->regoff); /* 4 cycles */
} else {
gen_bound_check;
}
- if (x86_64_is_imm32(iptr->val.l)) {
+ if (IS_IMM32(iptr->val.l)) {
x86_64_mov_imm_memindex(cd, (u4) (iptr->val.l & 0x00000000ffffffff), OFFSET(java_longarray, data[0]), s1, s2, 3);
} else {
/* read patched code. Here we patch the following 5 nop's */
/* so that the real code keeps untouched. */
if (showdisassemble) {
- x86_64_nop(cd);
- x86_64_nop(cd);
- x86_64_nop(cd);
- x86_64_nop(cd);
- x86_64_nop(cd);
+ x86_64_nop(cd); x86_64_nop(cd); x86_64_nop(cd);
+ x86_64_nop(cd); x86_64_nop(cd);
}
}
var_to_reg_flt(s2, src, REG_FTMP1);
x86_64_movsd_reg_membase(cd, s2, REG_ITMP2, 0);
break;
- default:
- throw_cacao_exception_exit(string_java_lang_InternalError,
- "Unknown PUTSTATIC operand type %d",
- iptr->op1);
+ }
+ break;
+
+ case ICMD_PUTSTATICCONST: /* ... ==> ... */
+ /* val = value (in current instruction) */
+ /* op1 = type, val.a = field address (in */
+ /* following NOP) */
+
+ /* If the static fields' class is not yet initialized, we do it */
+ /* now. The call code is generated later. */
+ if (!((fieldinfo *) iptr[1].val.a)->class->initialized) {
+ codegen_addclinitref(cd, cd->mcodeptr, ((fieldinfo *) iptr[1].val.a)->class);
+
+ /* This is just for debugging purposes. Is very difficult to */
+ /* read patched code. Here we patch the following 5 nop's */
+ /* so that the real code keeps untouched. */
+ if (showdisassemble) {
+ x86_64_nop(cd); x86_64_nop(cd); x86_64_nop(cd);
+ x86_64_nop(cd); x86_64_nop(cd);
+ }
+ }
+
+ /* This approach is much faster than moving the field address */
+ /* inline into a register. */
+ a = dseg_addaddress(cd, &(((fieldinfo *) iptr[1].val.a)->value));
+ x86_64_mov_membase_reg(cd, RIP, -(((ptrint) cd->mcodeptr + 7) - (ptrint) cd->mcodebase) + a, REG_ITMP1);
+ switch (iptr->op1) {
+ case TYPE_INT:
+ case TYPE_FLT:
+ x86_64_movl_imm_membase(cd, iptr->val.i, REG_ITMP1, 0);
+ break;
+ case TYPE_LNG:
+ case TYPE_ADR:
+ case TYPE_DBL:
+ if (IS_IMM32(iptr->val.l)) {
+ x86_64_mov_imm_membase(cd, iptr->val.l, REG_ITMP1, 0);
+ } else {
+ x86_64_movl_imm_membase(cd, iptr->val.l, REG_ITMP1, 0);
+ x86_64_movl_imm_membase(cd, iptr->val.l >> 32, REG_ITMP1, 4);
+ }
+ break;
}
break;
/* read patched code. Here we patch the following 5 nop's */
/* so that the real code keeps untouched. */
if (showdisassemble) {
- x86_64_nop(cd);
- x86_64_nop(cd);
- x86_64_nop(cd);
- x86_64_nop(cd);
- x86_64_nop(cd);
+ x86_64_nop(cd); x86_64_nop(cd); x86_64_nop(cd);
+ x86_64_nop(cd); x86_64_nop(cd);
}
}
x86_64_movsd_membase_reg(cd, REG_ITMP2, 0, d);
store_reg_to_var_flt(iptr->dst, d);
break;
- default:
- throw_cacao_exception_exit(string_java_lang_InternalError,
- "Unknown GETSTATIC operand type %d",
- iptr->op1);
}
break;
- case ICMD_PUTFIELD: /* ..., value ==> ... */
+ case ICMD_PUTFIELD: /* ..., objectref, value ==> ... */
/* op1 = type, val.i = field offset */
a = ((fieldinfo *)(iptr->val.a))->offset;
var_to_reg_int(s1, src->prev, REG_ITMP1);
+ gen_nullptr_check(s1);
switch (iptr->op1) {
case TYPE_INT:
var_to_reg_int(s2, src, REG_ITMP2);
- gen_nullptr_check(s1);
x86_64_movl_reg_membase(cd, s2, s1, a);
break;
case TYPE_LNG:
case TYPE_ADR:
var_to_reg_int(s2, src, REG_ITMP2);
- gen_nullptr_check(s1);
x86_64_mov_reg_membase(cd, s2, s1, a);
break;
case TYPE_FLT:
var_to_reg_flt(s2, src, REG_FTMP2);
- gen_nullptr_check(s1);
x86_64_movss_reg_membase(cd, s2, s1, a);
break;
case TYPE_DBL:
var_to_reg_flt(s2, src, REG_FTMP2);
- gen_nullptr_check(s1);
x86_64_movsd_reg_membase(cd, s2, s1, a);
break;
- default:
- throw_cacao_exception_exit(string_java_lang_InternalError,
- "Unknown PUTFIELD operand type %d",
- iptr->op1);
+ }
+ break;
+
+ case ICMD_PUTFIELDCONST: /* ..., objectref, value ==> ... */
+ /* val = value (in current instruction) */
+ /* op1 = type, val.a = field address (in */
+ /* following NOP) */
+
+ a = ((fieldinfo *) iptr[1].val.a)->offset;
+ var_to_reg_int(s1, src, REG_ITMP1);
+ gen_nullptr_check(s1);
+ switch (iptr->op1) {
+ case TYPE_INT:
+ case TYPE_FLT:
+ x86_64_movl_imm_membase(cd, iptr->val.i, s1, a);
+ break;
+ case TYPE_LNG:
+ case TYPE_ADR:
+ case TYPE_DBL:
+ if (IS_IMM32(iptr->val.l)) {
+ x86_64_mov_imm_membase(cd, iptr->val.l, s1, a);
+ } else {
+ x86_64_movl_imm_membase(cd, iptr->val.l, s1, a);
+ x86_64_movl_imm_membase(cd, iptr->val.l >> 32, s1, a + 4);
+ }
+ break;
}
break;
a = ((fieldinfo *)(iptr->val.a))->offset;
var_to_reg_int(s1, src, REG_ITMP1);
+ gen_nullptr_check(s1);
switch (iptr->op1) {
case TYPE_INT:
d = reg_of_var(rd, iptr->dst, REG_ITMP1);
- gen_nullptr_check(s1);
x86_64_movl_membase_reg(cd, s1, a, d);
store_reg_to_var_int(iptr->dst, d);
break;
case TYPE_LNG:
case TYPE_ADR:
d = reg_of_var(rd, iptr->dst, REG_ITMP1);
- gen_nullptr_check(s1);
x86_64_mov_membase_reg(cd, s1, a, d);
store_reg_to_var_int(iptr->dst, d);
break;
case TYPE_FLT:
d = reg_of_var(rd, iptr->dst, REG_FTMP1);
- gen_nullptr_check(s1);
x86_64_movss_membase_reg(cd, s1, a, d);
store_reg_to_var_flt(iptr->dst, d);
break;
case TYPE_DBL:
d = reg_of_var(rd, iptr->dst, REG_FTMP1);
- gen_nullptr_check(s1);
x86_64_movsd_membase_reg(cd, s1, a, d);
store_reg_to_var_flt(iptr->dst, d);
break;
- default:
- throw_cacao_exception_exit(string_java_lang_InternalError,
- "Unknown GETFIELD operand type %d",
- iptr->op1);
}
break;
/* op1 = arg count, val.a = method pointer */
case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
- /* op1 = arg count, val.a = method pointer */
-
- case ICMD_INVOKEVIRTUAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
- /* op1 = arg count, val.a = method pointer */
-
- case ICMD_INVOKEINTERFACE:/*.., objectref, [arg1, [arg2 ...]] ==> ... */
- /* op1 = arg count, val.a = method pointer */
+ case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer */
+ case ICMD_INVOKEINTERFACE:
s3 = iptr->op1;
lm = iptr->val.a;
switch (iptr->opc) {
- case ICMD_BUILTIN3:
- case ICMD_BUILTIN2:
- case ICMD_BUILTIN1:
-
- a = (s8) lm;
- d = iptr->op1;
-
- x86_64_mov_imm_reg(cd, a, REG_ITMP1);
- x86_64_call_reg(cd, REG_ITMP1);
- break;
-
- case ICMD_INVOKESTATIC:
-
- a = (s8) lm->stubroutine;
- d = lm->returntype;
+ case ICMD_BUILTIN3:
+ case ICMD_BUILTIN2:
+ case ICMD_BUILTIN1:
+ a = (s8) lm;
+ d = iptr->op1;
- x86_64_mov_imm_reg(cd, a, REG_ITMP2);
- x86_64_call_reg(cd, REG_ITMP2);
- break;
-
- case ICMD_INVOKESPECIAL:
-
- a = (s8) lm->stubroutine;
- d = lm->returntype;
+ x86_64_mov_imm_reg(cd, a, REG_ITMP1);
+ x86_64_call_reg(cd, REG_ITMP1);
+ break;
- gen_nullptr_check(rd->argintregs[0]); /* first argument contains pointer */
- x86_64_mov_membase_reg(cd, rd->argintregs[0], 0, REG_ITMP2); /* access memory for hardware nullptr */
- x86_64_mov_imm_reg(cd, a, REG_ITMP2);
- x86_64_call_reg(cd, REG_ITMP2);
- break;
+ case ICMD_INVOKESTATIC:
+ a = (s8) lm->stubroutine;
+ d = lm->returntype;
- case ICMD_INVOKEVIRTUAL:
+ x86_64_mov_imm_reg(cd, a, REG_ITMP2);
+ x86_64_call_reg(cd, REG_ITMP2);
+ break;
- d = lm->returntype;
+ case ICMD_INVOKESPECIAL:
+ a = (s8) lm->stubroutine;
+ d = lm->returntype;
- gen_nullptr_check(rd->argintregs[0]);
- x86_64_mov_membase_reg(cd, rd->argintregs[0], OFFSET(java_objectheader, vftbl), REG_ITMP2);
- x86_64_mov_membase32_reg(cd, REG_ITMP2, OFFSET(vftbl_t, table[0]) + sizeof(methodptr) * lm->vftblindex, REG_ITMP1);
- x86_64_call_reg(cd, REG_ITMP1);
- break;
+ gen_nullptr_check(rd->argintregs[0]); /* first argument contains pointer */
+ x86_64_mov_membase_reg(cd, rd->argintregs[0], 0, REG_ITMP2); /* access memory for hardware nullptr */
+ x86_64_mov_imm_reg(cd, a, REG_ITMP2);
+ x86_64_call_reg(cd, REG_ITMP2);
+ break;
- case ICMD_INVOKEINTERFACE:
+ case ICMD_INVOKEVIRTUAL:
+ d = lm->returntype;
- ci = lm->class;
- d = lm->returntype;
+ gen_nullptr_check(rd->argintregs[0]);
+ x86_64_mov_membase_reg(cd, rd->argintregs[0], OFFSET(java_objectheader, vftbl), REG_ITMP2);
+ x86_64_mov_membase32_reg(cd, REG_ITMP2, OFFSET(vftbl_t, table[0]) + sizeof(methodptr) * lm->vftblindex, REG_ITMP1);
+ x86_64_call_reg(cd, REG_ITMP1);
+ break;
- gen_nullptr_check(rd->argintregs[0]);
- x86_64_mov_membase_reg(cd, rd->argintregs[0], OFFSET(java_objectheader, vftbl), REG_ITMP2);
- x86_64_mov_membase_reg(cd, REG_ITMP2, OFFSET(vftbl_t, interfacetable[0]) - sizeof(methodptr) * ci->index, REG_ITMP2);
- x86_64_mov_membase32_reg(cd, REG_ITMP2, sizeof(methodptr) * (lm - ci->methods), REG_ITMP1);
- x86_64_call_reg(cd, REG_ITMP1);
- break;
+ case ICMD_INVOKEINTERFACE:
+ ci = lm->class;
+ d = lm->returntype;
- default:
- d = 0;
- error("Unkown ICMD-Command: %d", iptr->opc);
- }
+ gen_nullptr_check(rd->argintregs[0]);
+ x86_64_mov_membase_reg(cd, rd->argintregs[0], OFFSET(java_objectheader, vftbl), REG_ITMP2);
+ x86_64_mov_membase_reg(cd, REG_ITMP2, OFFSET(vftbl_t, interfacetable[0]) - sizeof(methodptr) * ci->index, REG_ITMP2);
+ x86_64_mov_membase32_reg(cd, REG_ITMP2, sizeof(methodptr) * (lm - ci->methods), REG_ITMP1);
+ x86_64_call_reg(cd, REG_ITMP1);
+ break;
+ }
/* d contains return type */
tmpcd->mcodeptr = xcodeptr; /* set dummy mcode pointer */
x86_64_call_imm(tmpcd, cd->mcodeptr - (xcodeptr + 5));
- /* Save current stack pointer into a temporary register. */
- x86_64_mov_reg_reg(cd, REG_SP, REG_ITMP1);
-
/* Push machine code bytes to patch onto the stack. */
x86_64_push_imm(cd, (u1) xmcode);
x86_64_push_imm(cd, (u4) mcode);
x86_64_push_imm(cd, (u8) cref->class);
- /* Push previously saved stack pointer onto stack. */
- x86_64_push_reg(cd, REG_ITMP1);
-
x86_64_mov_imm_reg(cd, (u8) asm_check_clinit, REG_ITMP1);
x86_64_jmp_reg(cd, REG_ITMP1);
}
tmpcd->mcodeptr = xcodeptr; /* set dummy mcode pointer */
x86_64_call_imm(tmpcd, cd->mcodeptr - (xcodeptr + 5));
- /* Save current stack pointer into a temporary register. */
- x86_64_mov_reg_reg(cd, REG_SP, REG_ITMP1);
-
/* Push machine code bytes to patch onto the stack. */
x86_64_push_imm(cd, (u1) xmcode);
x86_64_push_imm(cd, (u4) mcode);
x86_64_push_imm(cd, (u8) cref->class);
- /* Push previously saved stack pointer onto stack. */
- x86_64_push_reg(cd, REG_ITMP1);
-
x86_64_mov_imm_reg(cd, (u8) asm_check_clinit, REG_ITMP1);
x86_64_jmp_reg(cd, REG_ITMP1);
}
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