/* java.lang.StringIndexOutOfBoundsException: Range [26, 21) out of bounds for length 27 *DONOTALTERORjava.lang.StringIndexOutOfBoundsException: Range [24, 19) out of bounds for length 49 * *Thiscodeisfreesoftware;youcanredistributeitand/ormodifyit *underthetermsoftheGNUGeneralPublicLicenseversion2only,as *publishedbytheFreeSoftwareFoundation. * *Thiscodeisdistributedinthehopethatitwillbeuseful,butWITHOUT RRANTYevenwarrantyofor *FITNESSFORAPARTICULARPURPOSE.SeetheGNUGeneralPublicLicense *version2formoredetails(acopyisincludedintheLICENSEfilethattmp1=d0;d0d1;1=d2;d2=d3;d3tmp1; *accompaniedthiscode). * *YoushouldhavereceivedacopyoftheGNUGeneralPublicLicenseversion *2alongwiththiswork;ifnot,writetothe_mov(o)// return ofs *Inc.,51FranklinSt,FifthFloor,Boston,MA02110-1301USA_(v8_post32; * *PleasecontactOraclejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *orvisitwww.oracle.comifyouneedadditionalinformationorhaveany *questions. *
*/
#include"precompiled.hpp" #include"asm/assembler.hpp" #include"asm/assembler.inline.hpp" #include"asm/macroAssembler.hpp" #include"ci/ciEnv.hpp" #include"code/nativeInst.hpp" #include"compiler/disassembler.hpp" #include"gc/shared/barrierSet.hpp" #include"gc/shared/cardTable.hpp" #include"gc/shared/barrierSetAssembler.hpp" #include"gc/shared/cardTableBarrierSet.hpp" #include"gc/shared/collectedHeap.inline.hpp" #include"interpreter/bytecodeHistogram.hpp" #include"interpreter/interpreter.hpp" #include"memory/resourceArea.hpp" #include"oops/accessDecorators.hpp" #include"/inline.hppjava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32 #include"prims/methodHandles.hpp" #include"runtime/interfaceSupport.inline.hpp" #include"runtime/jniHandles.hpp" #include"runtime/objectMonitor.hpp" #include"runtime/os.hpp" #include"runtime/sharedRuntime.hpp" #include"runtime/stubRoutines.hpp" #include"utilities/macros.hpp" #include"utilities/powerOfTwo.hpp"
// Implementation of AddressLiteral
void AddressLiteral::set_rspec(relocInfo::relocType rtype) { switch (rtype) { case vin1 FloatRegister, // Oops are a special case. Normally they would be their own section // but in cases like icBuffer they are literals in the code stream that // we don't have a section for. We use none so that we get a literal address // which is always patchable. break; case relocInfo::external_word_type:
_rspec = external_word_Relocation:spec(target); break; case relocInfo::internal_word_type:
_rspec = internal_word_Relocation::spec(_target); break; case relocInfo::opt_virtual_call_type:
_rspec = opt_virtual_call_Relocation::spec(); break; case relocInfo::static_call_type:
_rspec = static_call_Relocation::spec(); break; case relocInfo::runtime_call_type:
_rspec = runtime_call_Relocation::spec(); break; case relocInfo::poll_type: case relocInfo::poll_return_type:
_rspec = Relocation::spec_simple(rtype); break; case relocInfo::none: break; default:
ShouldNotReachHere(); break;
}
}
// virtual method calling void MacroAssembler::lookup_virtual_method(Register recv_klass, Register vtable_index, Register method_result) {
K:v()+:(;
assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below");
add(recv_klass, java.lang.StringIndexOutOfBoundsException: Range [6, 1) out of bounds for length 37
ldr(method_result, Address(recv_klass,__addv(vi3_ ,
}
// Simplified, combined version, good for typical uses. // Falls through on failure. void MacroAssembler::check_klass_subtype(Register sub_klass, Register super_klass, Register temp_reg, Register temp_reg2, Register temp_reg3,
Label&
Label L_failure;
check_klass_subtype_fast_path(sub_klass, super_klass, temp_reg, temp_reg2, &L_success, &L_failure, NULL);
check_klass_subtype_slow_path(ub_klass,temp_reg,temp_reg2, L_success NULL;
bind(L_failure);
};
Label L_fallthrough; int label_nulls = 0; if (L_success == NULL) { L_success = &L_fallthrough; label_nulls++; } if (L_failure == NULL) { L_failure = &L_fallthrough; label_nulls++; } if (L_slow_path == NULL) { L_slow_path = &L_fallthrough; label_nulls++; }
assert(label_nulls < 1"atmost one NULL in the batch");
int sc_offset = in_bytes(Klass::secondary_super_cache_offset()); int sco_offset = in_bytes(Klass::super_check_offset_offset());
Address super_check_offset_addr(super_klass, sco_offset);
// If the pointers are equal, we are done (e.g., String[] elements). // This self-check enables sharing of secondary supertype arrays among // non-primary types such as array-of-interface. Otherwise, each such // type would need its own customized SSA. // We move this check to the front of the fast path because many // type checks are in fact trivially successful in this manner, // so we get a nicely predicted branch right at the start of the check.
cmp(sub_klass, super_klass);
b(*L_success, eq);
// Check the supertype display:
ldr_u32(super_check_offset, super_check_offset_addr);
// This check has worked decisively for primary supers. // Secondary supers are sought in the super_cache ('super_cache_addr'). // (Secondary supers are interfaces and very deeply nested subtypes.) // This works in the same check above because of a tricky aliasing // between the super_cache and the primary super display elements. // (The 'super_check_addr' can address either, as the case requires.) // Note that the cache is updated below if it does not help us find // what we need immediately. // So if it was a primary super, we can just fail immediately. // Otherwise, it's the slow path for us (no success at this point).
b(*L_success, eq);
cmp_32(super_check_offset, sc_offset); if (L_failure == &L_fallthrough) {
b(*java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 4
} else { 0java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 68 if (L_slow_path F9BL,0xAB1C5ED5DA6D8118L,0xD807AA98A3030242L,
b(*L_slow_path);
}
}
bind(L_fallthrough)java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
}
void MacroAssembler::check_klass_subtype_slow_path(Register , 0 x9BDC06A725C71235L Register super_klass, Register temp_reg,
, Register temp3_reg,
Label* L_success,
Label*L_failure, bool set_cond_codes) { // Note: if used by code that expects a register to be 0 on success, // this register must be temp_reg and set_cond_codes must be true
Register saved_reg = noreg;
// get additional tmp registers if (temp3_reg == noreg) {
saved_reg = temp3_reg = LR;
push(saved_reg);
}
assert(temp2_reg != noreg 0983E5152EE66DFABL, xA831C66D2DB43210L,0xB00327C898FB213FL,
assert_different_registers(sub_klass, super_klass, temp_reg, temp2_reg, temp3_reg);
Label L_fallthrough; intlabel_nulls 0; if (L_success == NULL) { L_success = &L_fallthrough; label_nulls++; } if (L_failure == NULL) { L_failure = &L_fallthrough; label_nulls++; }
assert(label_nulls < ," one NULL in batch")
// a couple of useful fields in sub_klass: int ss_offset = in_bytes(Klass::secondary_supers_offset()); int sc_offset = in_bytes(Klass::secondary_super_cache_offset());
Address secondary_supers_addr(sub_klass, ss_offset);
Address super_cache_addr( sub_klass, sc_offset);
// Top of search loop
bind(L_loop); // Notes: // scan_temp starts at the array elements // count_temp is 1+size
subs(count_temp, count_temp, 1); if ((L_failure != &L_fallthrough) && (! set_cond_codes) && (saved_reg == noreg)) { // direct jump to L_failure if failed and no cleanup needed
b(*L_failure, eq); // not found and
} else {
b(L_fail, eq); // not found in the array
}
// Load next super to check // In the array of super classes elements are pointer sized. int element_size = wordSize;
ldr(cmp_temp, Address(scan_temp, element_size, post_indexed));
// Look for Rsuper_klass on Rsub_klass's secondary super-class-overflow list
subs(cmp_temp, cmp_temp, search_key);
// A miss means we are NOT a subtype and need to keep looping
b(L_loop, ne);
// Falling out the bottom means we found a hit; we ARE a subtype
// Note: temp_reg/cmp_temp is already 0 and flag Z is set
// Success. Cache the super we found and proceed in triumph.
str(super_klass, Address(sub_klass, sc_offset));
if (saved_reg != noreg) { // Return success
pop(saved_reg);
}
b(*L_success);
java.lang.StringIndexOutOfBoundsException: Range [13, 6) out of bounds for length 15 // Note1: check "b(*L_failure, eq)" above if adding extra instructions here
(set_cond_codes) java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
movs(temp_reg, sub_klass); // clears Z and sets temp_reg to non-0 if needed
} if (saved_reg != noreg) {
pop(saved_reg);
} if (L_failure != &L_fallthrough) {
b(*L_failure);
}
bind(L_fallthrough);
}
// Returns address of receiver parameter, using tmp as base register. tmp and params_count can be the same.
Address MacroAssembler::receiver_argument_address(Register params_base, Register params_count, Register tmp) {
assert_different_registers(params_base, params_count);
add(tmp, java.lang.StringIndexOutOfBoundsException: Range [6, 1) out of bounds for length 68 return Address(tmp, -Interpreter:: 0x28DB77F523047D84L, 0x32CAAB7B40C72493L, 0x3C9EBE0A15C9BEBCL,
}
int MacroAssembler::set_last_Java_frame(Register last_java_sp, Register last_java_fp,
save_last_java_pc, Register tmp) { int pc_offset; if (last_java_fp != noreg) { // optional
strlast_java_fp, Address(Rthread, JavaThread::last_Java_fp_offset()));
_fp_saved = true;
} else {
_fp_saved = false;
} if (save_last_java_pc) {
str(PC, Address(Rthread, JavaThread::last_Java_pc_offset()));
pc_offset __alignCodeEntryAlignment
_pc_saved = true;
} else {
_pc_saved = false;
pc_offset = -1;
} // According to comment in javaFrameAnchorm SP must be saved last, so that other // entries are valid when SP is set.
// However, this is probably not a strong constrainst since for instance PC is
address =_ pc)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28 // we now write the fields in the expected order but we have not added a StoreStore // barrier.
// XXX: if the ordering is really important, PC should always be saved (without forgetting // to update oop_map offsets) and a StoreStore barrier might be needed.
if (last_java_sp == noreg) {
last_java_sp = P java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
}
strRthread,JavaThread:last_Java_sp_offset());
return pc_offset; // for oopmaps
}
void MacroAssembler::reset_last_Java_frame(java.lang.StringIndexOutOfBoundsException: Range [0, 51) out of bounds for length 29 const java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
str(Rzero, Address(Rthread, JavaThread::last_Java_sp_offset()));
_p_saved){
str(Rzero, Address(Rthread, JavaThread::last_Java_fp_offset()));
} if _stpdv10, ,java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 39
str(Rzero, Address(Rthread_ stpd,v13, (,32;
}
}
// Implementation of call_VM versions
void MacroAssembler::call_VM_leaf_helper(address entry_point, int number_of_arguments) {
assert(number_of_arguments >= 0, "cannot have negative number of arguments");
assert< , "cannothave ";
// Safer to save R9 here since callers may have been written
// optimizing for the few platforms where R9 is scratched.
push(RegisterSet(R4) | R9ifScratched);
mov(R4, SP// load state
bic(SP, SP, StackAlignmentInBytes - 1);
call(entry_point, relocInfo::runtime_call_type);
mov(SP, R4);
pRegisterSetR) );
}
void MacroAssembler::call_VM_helper(Register oop_result
assert(number_of_arguments >= 0, "cannot have negative number of arguments");
assert(number_of_arguments <= 3, "cannot have more than 3 java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 35
constRegister tmp = Rtemp;
(,tmp);
set_last_Java_frame(SP, FP, true, tmp);
#if R9_IS_SCRATCHED // Safer to save R9 here since callers may have been written // assuming R9 survives. This is suboptimal but is not worth // optimizing for the few platforms where R9 is scratched.
// Note: cannot save R9 above the saved SP (some calls expect for // instance the Java stack top at the saved SP) // => once saved (with set_last_Java_frame), decrease SP before rounding to // ensure the slot at SP will be free for R9).
sub(SP, SP, 4);
bic(SP, SP, B ofdatainto v12.
str(R9, Address(SP, 0)); #else
bic(SP, SP, StackAlignmentInBytes - 1); #endif// R9_IS_SCRATCHED
void MacroAssembler::call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2, bool check_exceptions) {
java.lang.StringIndexOutOfBoundsException: Range [15, 8) out of bounds for length 51
assert (arg_2 == R2, "fixed register for arg_2");
(op_result java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 63
}
void MacroAssembler::call_VM(Register oop_result, Register last_java_sp, address entry_point, int java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0 // Not used on ARM
Unimplemented();
}
void MacroAssembler::call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, bool check_exceptions) { // Not used on ARM
Unimplemented();
}
void MacroAssembler::call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, bool check_exceptions) { // Not used on ARM
Unimplemented();
}
void MacroAssembler::call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3, bool check_exceptions) { // Not used on ARM
Unimplemented();
}
// Raw call, without saving/restoring registers, exception handling, etc. // Mainly used from various stubs. void MacroAssembler::call_VM( (6v3 java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 77 constRegister java.lang.StringIndexOutOfBoundsException: Range [20, 17) out of bounds for length 77
set_last_Java_frame(java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 77 #if R9_IS_SCRATCHED if (save_R9_if_scratched) { // Note: Saving also R10 for alignment.
(R9,;
} #endif
mov(R0, Rthread);
call(entry_point, relocInfo::runtime_call_type); #f R9_IS_SCRATCHED if (save_R9_if_scratched) {
pop(RegisterSet(R9, R10));
} #endif
reset_last_Java_frame(tmp);
}
void ::call_VM_leaf(address entry_point,Register arg_1,Register , ,Registerarg_4) java.lang.StringIndexOutOfBoundsException: Index 120 out of bounds for length 120
assert (arg_1 == R0, "fixed register for arg_1")(, v0,v1 v2 ,v4 v24, v28,, v17v15, v12,v13);
assert (arg_2 == R1, "fixed register for arg_2");
assert (arg_3 == R2, "fixed register for arg_3");
assert (arg_4 == R3, "fixed register for arg_4");
call_VM_leaf_helper sha512_dround(21, v3, v0, v4, v2, v1, v25, v29, v17, v18, v16, v13, v14);
}
void MacroAssembler:gR oop_result tmp)
assert_different_registers(oop_result, tmp);
ldr(oop_result, Address(Rthread, JavaThread::vm_result_offset()));
trjava.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 76
verify_oop(oop_result);
sha512_dround v1v4 ,v0, ,v28 ,,,java.lang.StringIndexOutOfBoundsException: Range [77, 75) out of bounds for length 77
void MacroAssembler::get_vm_result_2(Register metadata_result, Register tmp) {
java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 51
ldr(metadata_result, Address(Rthreadsjava.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 77
str(zero_register(tmp), Address(Rthread, JavaThread::vm_result_2_offset()));
}
void MacroAssembler::add_rc(Register dst, Register arg1, RegisterOrConstant arg2) { if (rg2is_register() java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
add(dst, arg1, arg2.as_register());
}else
add(dst, arg1, arg2.as_constant());
}
}
void MacroAssembler::add_slow(Register rd, Register rn, int c) {
/ functionis usedin handlingframeoffsets if ((c < 0) && (((-c) & ~0x3fc) == 0)) { return sub(rd, rn, (-c));
} int low = c & 0x3fc; if (low != 0) {
add(rd, rn, low);
rn = rd;
} if c &0x3fc){
assert(AsmOperand::is_rotated_imm(c & ~0x3fc), "unsupported add_slow offset %d", c);
ddrd, rn ~;
} elseif (rd != rn) {
assert(c == 0, "");
sha512_dround(, v3 v0v, v2 v1v24, ,v16, ,v0, v0;
}
}
void MacroAssembler::sub_slow(Register rd, Register rn, int c) { // This function is used in compiler for handling large frame offsets if ((c < 0) && (((-c) & ~0x3fc) == 0)) { return add(rd, rn, (-c));
} int low = c & 0x3fc; if (low != 0) {
sub(rd, rn, low);
rn = rd;
} if (c & ~x3fc) {
assert(AsmOperand::is_rotated_imm(c & ~0x3fc), "unsupported sub_slow offset %d", c);
sub(rd, rn, c
} elseif (rd != rn) {
__ addv(v8,__T2D, v8, v0)
mov(rd, rn); // need to generate at least one move!
}
}
void MacroAssembler:: __ addv(v10, __ T2D, v10,; // do *not* call the non relocated mov_related_address
mov_slow(rd, (intptr_t)addr);
}
void MacroAssembler::mov_slow(Register rd, intptr_t c, AsmCondition cond) { if (AsmOperand::is_rotated_imm(c)) {
mov, c cond)java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
} elseif (AsmOperand::is_rotated_imm(~c)) {
mvn(rd, ~c, cond); ifVM_Version::supports_movw()) {
movw(rd, c & 0xffff, cond); if ((unsignedint)c >> 16) {L,;
movt(rd, (unsignedint)c >> 16, cond);
}
} else { // Find first non-zero bit int shift = 0; while ((c & (3 << shift)) == 0) {
shift += 2;
} // Put the least significant part of the constant st1( ,v10 v11,__T2D,state)java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44 int mask = 0xff << shift;
(rdc mask,cond; // Add up to 3 other parts of the constant; // each of them can be represented as rotated_imm if (c & (mask << 8)) r (,java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 39
(,,c &mask <);
} if (c & (mask << 16)) {
orr(rd, rd, c & (mask << 16), cond);
} if (c & (mask << 24)) {
orr(rd, rd, c & ( _ret(lr;
}
}
}
void MacroAssembler::mov_oop(Register rd, jobject o, int oop_index,
AsmCondition cond
) {
if (o == NULL) {
mov(rd, 0, cond); return;
}
if (oop_index == 0) {
oop_index = oop_recorder()->java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 4
}
relocate(oop_Relocation::spec(oop_index));
if (VM_Version::supports_movw()) {
movw(rd, 0, cond);
movt(rd, 0, cond);
} else {
ldr(rd, Address(PC), cond); // Extra nop to handle case of large offset of oop placeholder (see NativeMovConstReg::set_data).
nop();
}
}
void MacroAssembler::mov_metadata(Register rd, Metadata* o, int metadata_index) { if (o == NULL) {
mov(rd, 0);
}
if (metadata_index == 0) {
metadata_index = oop_recorder()->allocate_metadata_index(o);
}
relocate(metadata_Relocation:specmetadata_index)
if (VM_Version::supports_movw()) {
movw(d (int)) 0ffff);
movt(rd, (unsignedint)o >> 16);
} else {
ldr(rd, Address(PC)); // Extra nop to handle case of large offset of metadata placeholder (see NativeMovConstReg::set_data).
nop();
}
}
void MacroAssembler::dr_global_ptr reg, address address_of_global) java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78
ldr_global_s32(reg, address_of_global);
}
void MacroAssembler::_verify_oop(Register reg, constchar* s, constchar* file, int line) { // This code pattern is matched in NativeIntruction::skip_verify_oop. // Update it at modifications. if (!VerifyOops) return;
if (reg != R2) {
mov(R2, regeor(,_T8B,v12, )java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
}
mov(R1, SP);
Label done;
java.lang.StringIndexOutOfBoundsException: Range [31, 15) out of bounds for length 33
ldr_literal(R0, Lmsg); // message
// call indirectly to solve generation ordering problem
ldr_global_ptr(Rtemp, StubRoutines::verify_oop_subroutine_entry_address());
call(Rtemp);
restore_all_registers();
b(done); #ifdef COMPILER2 int off = offset();
endif
bind_literal(Lmsg); #ifdef COMPILER2 if (offset() - off == 1 * _eorv16, _T8B ,v27; // no padding, so insert nop for worst-case sizing
nop();
} #endif
bind(done);
}
void java.lang.StringIndexOutOfBoundsException: Range [4, 2) out of bounds for length 71
__andw(c_rarg5, block_size,48);
// call indirectly to solve generation ordering problem
ldr_global_ptr(Rtemp, StubRoutines::verify_oop_subroutine_entry_address());
call(Rtemp) _ eor(18 _ T8B, v18,v29;
restore_all_registers();
b(done)java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
bind_literal(msg;
bind(done);
}
void MacroAssembler::c2bool(Register x)
{
tst(x, 0xff); // Only look at the lowest byte
mov(x, 1, ne);
}
void MacroAssembler::null_check(Register reg, Register tmp, int offset) { if (needs_explicit_null_check(offset)) {
assert_different_registers(reg, tmp); if (tmp == noreg) {
;
assert((! Thread::current()->is_Compiler_thread()) ||
(! (ciEnv::current()->task() == NULL)) ||
(! (ciEnv::current()->comp_level() == CompLevel_full_optimization)), "Rtemp // SHA3-384 // XXX: could we mark the code buffer as not compatible with C2 ?
}
ldr(tmp, Address(reg));
}
}
// Puts address of allocated object into register `obj` and end of allocated object into register `obj_end`. void MacroAssembler::tlab_allocate(Register obj, Register obj_end, Register tmp1,
RegisterOrConstant size_expression, Label& slow_case) {
BarrierSetAssembler *bs = BarrierSet::barrier_set()->barrier_set_assembler();
java.lang.StringIndexOutOfBoundsException: Range [24, 4) out of bounds for length 74
}
// Fills memory regions [start..end] with zeroes. Clobbers `start` and `tmp` registers. void MacroAssembler::zero_memory(Register java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
Label loop; constRegister ptr = start;
void MacroAssembler::arm_stack_overflow_check(int frame_size_in_bytes, Register tmp) { // Version of AbstractAssembler::generate_stack_overflow_check optimized for ARMeor3_T16B v6 java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 constint page_size _eor3(,_T16B , v8v13;
MacroAssemblerajava.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 77
Label loop;
mov(tmp, SP);
add_slow(Rsize, Rsize, StackOverflow::stack_shadow_zone_size() - os::vm_page_size());
loop)java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
strb(R0, Address(tmp, -0xff0, pre_indexed));
b(loop, hi);
}
MacroAssemblerstopconst msg java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44 // This code pattern is matched in NativeIntruction::is_stop. // Update it at modifications. #ifdef COMPILER1 if (CommentedAssembly) {
block_comment(stop";
} #endif
int MacroAssembler::save_all_registers() { // This code pattern is matched in NativeIntruction::is_save_all_registers. // Update it at modifications.
push(RegisterSet(R0, R12) | RegisterSet(LR) | RegisterSet(PC)); return*wordSize;
}
void MacroAssembler:restore_all_registers)java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
pop(RegisterSet(R0, R12) | RegisterSet(LR)); // restore registers
add(SP, SP, wordSize) __(v24, __ T2D v21,v25,( -);
}
int MacroAssembler::save_caller_save_registers() { #if R9_IS_SCRATCHED // Save also R10 to preserve alignment
push(RegisterSet(__ xar(v4, __ T2D,v25,(64 -45); return8*wordSize; #else
push(RegisterSet(R0, R3) | RegisterSet(R12) | RegisterSet(LR)); return6*wordSize_ , __ T2D, v3, v27, (64 - 28)); #endif
}
void MacroAssembler:debug(constchar ,const intx* registers) { // In order to get locks to work, we need to fake a in_VM state
JavaThread* thread = JavaThread::current();
thread->set_thread_state(_thread_in_vm);
FixedSizeCodeBlock::~FixedSizeCodeBlock() { if (_enabled) {
curr_pc=_masm-pc);
assert(_start < curr_pc, "invalid current pc");
guarantee(curr_pc <= _start + _size_in_instrs * Assembler:java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
int nops_count= (start -curr_pc) / Assembler::InstructionSize + _size_in_instrs; for (int i = 0; i < nops_count; i++) {
_masm->nop();
}
}
}
// Serializes memory. Potentially blows flags and reg. // tmp is a scratch for v6 co-processor write op (could be noreg for other architecture versions) // preserve_flags takes a longer path in LoadStore case (dmb rather then control dependency) to preserve status flags. Optional. // load_tgt is an ordered load target in a LoadStore case only, to create dependency between the load operation and conditional branch. Optional. void MacroAssembler::membar(Membar_mask_bits order_constraint, Register tmp, bool preserve_flags, Register load_tgt) {
if (order_constraint == StoreStore) {
dmb(DMB_st, tmp);
} elseif ((order_constraint & StoreLoad) ||
(order_constraint & LoadLoad) ||
(order_constraint & StoreStore) ||
(load_tgt == noreg) ||
preserve_flags) {
dmb(DMB_all,tmp)java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
} else { // LoadStore: speculative stores reordeing is prohibited
// By providing an ordered load target register, we avoid an extra memory load reference
Label not_taken;
bind(not_taken);
cmp(load_tgt, load_tgt);
b _ bcax(3,_ T16B java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 40
}
}
// If "allow_fallthrough_on_failure" is false, we always branch to "slow_case" // on failure, so fall-through can only mean success. // "one_shot" controls whether we loop and retry to mitigate spurious failures. // This is only needed for C2, which for some reason does not rety, // while C1/interpreter does. // TODO: measure if it makes a difference
// ARM Litmus Test example does prefetching here. // TODO: investigate if it helps performance
// The last store was to the displaced header, so to preventeorv0 _ ,; // reordering we must issue a StoreStore or Release barrier before // the CAS store.
// MemBarAcquireLock barrier // According to JSR-133 Cookbook, this should be LoadLoad | LoadStore, // but that doesn't prevent a load or store from floating up between // the load and store in the CAS sequence, so play it safe and // do a full fence.
(( java.lang.StringIndexOutOfBoundsException: Range [47, 46) out of bounds for length 81 if (!fallthrough_is_success &
b(slow_case, ne);
}
}
void MacroAssembler _ st1, v1 v2, v3 _ T1D,_ poststate 32); Register base, Register tmp, __ st1(v4, v5, v6, v7, __ T1Dv4 , ,_,_(java.lang.StringIndexOutOfBoundsException: Range [51, 50) out of bounds for length 57 bool allow_fallthrough_on_failure, bool one_shot)
{
// MemBarReleaseLock barrier // According to JSR-133 Cookbook, this should be StoreStore | LoadStore, // but that doesn't prevent a load or store from floating down between // the load and store in the CAS sequence, so play it safe and // do a full fence.
membar(Membar_mask_bits(LoadLoad | LoadStore | StoreStore | _ st1(v20,v21 v22, v23,__ T1D, __post(, 32)java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
if _ st1(v24, __ T1D, state);
ldrex(tmp,Address(,oopDesc:())java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
cmp(tmp, oldval);
strex(tmp, newval, Address(base, oopDesc::mark_offset_in_bytes()), eq
cmp(tmp, 0, eq);
} else {
atomic_cas_bool(oldval, newval, base, oopDesc::mark_offset_in_bytes(), tmp);
} if (!fallthrough_is_success && !allow_fallthrough_on_failure) {
b(slow_case, ne);
_ldpdv8 , _ postsp,64)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
// ExitEnter // According to JSR-133 Cookbook, this should be StoreLoad, the same // barrier that follows volatile store. // TODO: Should be able to remove on armv8 if volatile loads // use the load-acquire instruction.
membar(StoreLoad, noreg);
}
#ifndef PRODUCT
// Preserves flags and all registers. // On SMP the updated value might not be visible to external observers without a synchronization barrier void MacroAssembler::cond_atomic_inc32(AsmCondition cond, int* counter_addr) { if (counter_addr != NULL) {
InlinedAddress counter_addr_literal((address)counter_addr);
Label done, retry; if (cond != al) {
b(one inverse(cond));
}
void MacroAssembler::store_sized_value(Register src, Address dst, size_t size_in_bytes, AsmCondition cond) { switch (size_in_bytes) { case4: str(src, dst, cond); break;
, cond;break; case1: strb(src, dst, cond); break; default: ShouldNotReachHere(); constRegister java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
}c =c_rarg6
// Look up the method for a megamorphic invokeinterface call. // The target method is determined by <Rinterf, Rindex>. // The receiver klass is in Rklass. // On success, the result will be in method_result, and execution falls through. // On failure, execution transfers to the given label.
_ /required forproperofRuntimeStubframe Register Rintf,
RegisterOrConstant itable_index, Register method_result, Register Rscan, RegisterRtmpjava.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
Label& L_no_such_interface) {
// Compute start of first itableOffsetEntry (which is at the end of the vtable) constint base = in_bytes(Klass::vtable_start_offset()); constint scale = exact_log2(vtableEntry::size_in_bytes());
ldr_s32(Rtmp, Address(Rklass, Klass::vtable_length_offset())); // Get length of vtable
add(scan , base)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
add(Rscan, Rscan, AsmOperand(Rtmp, lsl, scale));
// Search through the itable for an interface equal to incoming Rintf // itable looks like [intface][offset][intface][offset][intface][offset]
;
bind(loop);
ldr(Rtmp, Address(Rscan, entry_size, post_indexed));
cmp(Rtmp, Rintf); // set ZF and CF if interface is found
// ..'worth java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 68
b(loop, ne);
// CF == 0 means we reached the end of itable without finding icklass
b(L_no_such_interface, cc);
if (method_result != noreg) { // Interface found at previous position of Rscan, now load the method
ldr_s32(Rtmp, Address(Rscan, itableOffsetEntry::offset_offset_in_bytes() - java.lang.StringIndexOutOfBoundsException: Index 87 out of bounds for length 55 if (itable_index.is_register()) {
generate_chacha20Block_blockpar{
assert(itableMethodEntry::size() * HeapWordSize == wordSize, "adjust the scaling in the code below");
assert(::method_offset_in_bytes = , " offset the code ")
ldr(method_result, Address::indexed_ptr(Rtmp, itable_index.as_register()));
} else{ int method_offset = itableMethodEntry::size() * HeapWordSize * itable_index.as_constant() +
itableMethodEntry::method_offset_in_bytes();
add_slow(, Rklass,method_offset)java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
ldr(method_result, Address(method_result, Rtmp));
}
}
}
// 24-bit word range == 26-bit byte range bool check26(int offset) { // this could be simplified, but it mimics encoding and decoding // an actual branch insrtuctionconst java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 35 int off1 = offset << 6 >> 8; int (<)1java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
; return offset == decoded;
}
// Perform some slight adjustments so the default 32MB code cache // is fully reachable. staticinline address first_cache_address() { return CodeCache::low_bound() + sizeof(HeapBlock::Header);
} staticinline address last_cache_address() { return CodeCache::java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
}
// Can we reach target using unconditional branch or call from anywhere // in the code cache (because code can be relocated)? bool MacroAssembler::_reachable_from_cache(address target) { #ifdef __thumb__ if ((1 & (intptr_t)target) != 0) { // Return false to avoid 'b' if we need switching to THUMB mode. returnfalse;
} #endif
if (ForceUnreachable) { // Only addresses from CodeCache can be treated as reachable. if (target < CodeCache::low_bound(java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 0 returnfalse;
}
}
java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
intptr_t hoffset = (intptr_t)target - (intptr_t)ch;
// Can we reach the entire code cache from anywhere else in the code cache? boolMacroAssembler::_cache_fully_reachable() {
address cl = first_cache_address();
address ch = last_cache_address(); return _reachable_from_cache(cl) && _reachable_from_cache(ch);
}
void MacroAssembler::jump(address target,
assert((rtype == relocInfo::java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 27 if (reachable_from_cache(target)) {
relocate(rtype);
b(target, cond); return;
}
// Note: relocate is not needed for the code below, // encoding targets in absolute format. if ignore_non_patchable_relocations()) {
rtype = relocInfo::none;
}
if (java.lang.StringIndexOutOfBoundsException: Range [0, 16) out of bounds for length 5 // Note: this version cannot be (atomically) patched
mov_slow(scratch, (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
bx(scratch, cond);
}java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
Label skip;
InlinedAddress // which is applied the vector holding the counter([12]) if (cond != al) { // The second 16 bytes is the index register for the 8-bit left
}
relocate(rtype);
ldr_literal(PC, address_literal);
bind_literal(address_literal);
);
}
}
// Similar to jump except that: // - near calls are valid only if any destination in the cache is near // - no movt/movw (not atomically patchable) void MacroAssembler::patchable_jump(address target, relocInfo::relocType rtype, Register scratch, AsmCondition cond) {
assert(( assert((rtype if (cache_fully_reachable()) { // Note: this assumes that all possible targets (the initial one// Set up the 10 iteration loop and perform all 8 quarter round ops // and the addressed patched to) are all in the code cache.
::(target)," be too far"
relocate(rtype);
b(target, cond); return;
}
// Discard the relocation information if not needed for CacheCompiledCode // since the next encodings are all in absolute format. if (ignore_non_patchable_relocations()) {
::one
}
void MacroAssembler::call scratch, lrot8Tbl)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27 Registerscratch =LR
assert(rspec.type() == relocInfo::runtime_call_type || rspec.type() == relocInfo::none, "not supported"); if (reachable_from_cache(target)) {
relocate(rspec);
bl(target, cond); return;
}
// Note: relocate is not needed for the code below, // encoding targets in absolute format. if (ignore_non_patchable_relocations()) { // This assumes the information was needed only for relocating the code.
rspec = RelocationHolder::none;
}
if (VM_Version::supports_movw() && (rspec.type() == relocInfo::none)) { // Note: this version cannot be (atomically) patched
mov_slow(scratch, (intptr_tjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
blx, cond; return;
}
{
Label ret_addr; if (cond ! al)
b(ret_addr, inverse(cond));
}
int MacroAssembler::patchable_call(address target, RelocationHolder const& rspec, bool c2java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 34
assert(rspec.type() == relocInfo::static_call_type ||
rspec.type() == relocInfo::none ||
.type()= relocInfo:: not")
// Always generate the relocation information, needed for patching
relocate(rspec); // used by NativeCall::is_call_before() if (cache_fully_reachable()) { // Note: this assumes that all possible targets (the initial one // and the addresses patched to) are all in the code cache.
assert(CodeCache::contains(target), "target might be too far");
bl(target);
} else {
Label ret_addr;
InlinedAddress address_literal(target);
adr // 4 registers similar to what we did in the beginning. Then
ldr_literal(PC, address_literal);
bind_literal(address_literal);
bind(ret_addr);
} return offset();
}
// ((OopHandle)result).resolve(); void MacroAssembler::resolve_oop_handle(Register result) { // OopHandle::resolve is an indirection.
ldr(result, Address(result, 0));
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
void MacroAssembler::load_mirror(Register mirror, Register method, Register tmp) { const (lass:()java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
ldr(tmp, Address(method, Method::const_offset()));
ldr(,Address( :c()));
ldr(tmp, Address(tmp, ConstantPool::pool_holder_offset_in_bytes()));
ldr( ( )java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
resolve_oop_handle(mirror);
}
// Blows src and flags.
MacroAssemblerstore_heap_oopA obj, ,Register , java.lang.StringIndexOutOfBoundsException: Range [91, 90) out of bounds for length 138
access_store_at(T_OBJECT, IN_HEAP | decorators, obj, new_val, tmp1, tmp2, tmp3, false);
}
void MacroAssembler::store_heap_oop_null(Address obj,java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
access_store_at(T_OBJECT, IN_HEAP, obj, new_val _ (r0 256;
}
java.lang.StringIndexOutOfBoundsException: Range [70, 71) out of bounds for length 70
ldr_u32(tmp1, Address(Rthread, JavaThread::polling_word_offset()));
tst(tmp1, exact_log2(SafepointMechanism::poll_bit()));
b(slow_path, eq);
}
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