3355 if (Universe::narrow_klass_shift() != 0 ||
3356 Universe::narrow_klass_base() == 0 && src != dst) { // Move required.
3357 shifted_src = dst;
3358 sldi(shifted_src, src, Universe::narrow_klass_shift());
3359 }
3360 if (Universe::narrow_klass_base() != 0) {
3361 add_const_optimized(dst, shifted_src, Universe::narrow_klass_base(), R0);
3362 }
3363 }
3364
3365 void MacroAssembler::load_klass(Register dst, Register src) {
3366 if (UseCompressedClassPointers) {
3367 lwz(dst, oopDesc::klass_offset_in_bytes(), src);
3368 // Attention: no null check here!
3369 decode_klass_not_null(dst, dst);
3370 } else {
3371 ld(dst, oopDesc::klass_offset_in_bytes(), src);
3372 }
3373 }
3374
3375 void MacroAssembler::load_mirror_from_const_method(Register mirror, Register const_method) {
3376 ld(mirror, in_bytes(ConstMethod::constants_offset()), const_method);
3377 ld(mirror, ConstantPool::pool_holder_offset_in_bytes(), mirror);
3378 ld(mirror, in_bytes(Klass::java_mirror_offset()), mirror);
3379 }
3380
3381 // Clear Array
3382 // For very short arrays. tmp == R0 is allowed.
3383 void MacroAssembler::clear_memory_unrolled(Register base_ptr, int cnt_dwords, Register tmp, int offset) {
3384 if (cnt_dwords > 0) { li(tmp, 0); }
3385 for (int i = 0; i < cnt_dwords; ++i) { std(tmp, offset + i * 8, base_ptr); }
3386 }
3387
3388 // Version for constant short array length. Kills base_ptr. tmp == R0 is allowed.
3389 void MacroAssembler::clear_memory_constlen(Register base_ptr, int cnt_dwords, Register tmp) {
3390 if (cnt_dwords < 8) {
3391 clear_memory_unrolled(base_ptr, cnt_dwords, tmp);
3392 return;
3393 }
3394
|
3355 if (Universe::narrow_klass_shift() != 0 ||
3356 Universe::narrow_klass_base() == 0 && src != dst) { // Move required.
3357 shifted_src = dst;
3358 sldi(shifted_src, src, Universe::narrow_klass_shift());
3359 }
3360 if (Universe::narrow_klass_base() != 0) {
3361 add_const_optimized(dst, shifted_src, Universe::narrow_klass_base(), R0);
3362 }
3363 }
3364
3365 void MacroAssembler::load_klass(Register dst, Register src) {
3366 if (UseCompressedClassPointers) {
3367 lwz(dst, oopDesc::klass_offset_in_bytes(), src);
3368 // Attention: no null check here!
3369 decode_klass_not_null(dst, dst);
3370 } else {
3371 ld(dst, oopDesc::klass_offset_in_bytes(), src);
3372 }
3373 }
3374
3375 // ((OopHandle)result).resolve();
3376 void MacroAssembler::resolve_oop_handle(Register result) {
3377 // OopHandle::resolve is an indirection.
3378 ld(result, 0, result);
3379 }
3380
3381 void MacroAssembler::load_mirror_from_const_method(Register mirror, Register const_method) {
3382 ld(mirror, in_bytes(ConstMethod::constants_offset()), const_method);
3383 ld(mirror, ConstantPool::pool_holder_offset_in_bytes(), mirror);
3384 ld(mirror, in_bytes(Klass::java_mirror_offset()), mirror);
3385 }
3386
3387 // Clear Array
3388 // For very short arrays. tmp == R0 is allowed.
3389 void MacroAssembler::clear_memory_unrolled(Register base_ptr, int cnt_dwords, Register tmp, int offset) {
3390 if (cnt_dwords > 0) { li(tmp, 0); }
3391 for (int i = 0; i < cnt_dwords; ++i) { std(tmp, offset + i * 8, base_ptr); }
3392 }
3393
3394 // Version for constant short array length. Kills base_ptr. tmp == R0 is allowed.
3395 void MacroAssembler::clear_memory_constlen(Register base_ptr, int cnt_dwords, Register tmp) {
3396 if (cnt_dwords < 8) {
3397 clear_memory_unrolled(base_ptr, cnt_dwords, tmp);
3398 return;
3399 }
3400
|