Thu, 06 Mar 2014 10:55:28 -0800
8035647: PPC64: Support for elf v2 abi.
Summary: ELFv2 ABI used by the little endian PowerPC64 on Linux.
Reviewed-by: kvn
Contributed-by: asmundak@google.com
goetz@6458 | 1 | /* |
goetz@6458 | 2 | * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. |
goetz@6458 | 3 | * Copyright 2012, 2013 SAP AG. All rights reserved. |
goetz@6458 | 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
goetz@6458 | 5 | * |
goetz@6458 | 6 | * This code is free software; you can redistribute it and/or modify it |
goetz@6458 | 7 | * under the terms of the GNU General Public License version 2 only, as |
goetz@6458 | 8 | * published by the Free Software Foundation. |
goetz@6458 | 9 | * |
goetz@6458 | 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
goetz@6458 | 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
goetz@6458 | 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
goetz@6458 | 13 | * version 2 for more details (a copy is included in the LICENSE file that |
goetz@6458 | 14 | * accompanied this code). |
goetz@6458 | 15 | * |
goetz@6458 | 16 | * You should have received a copy of the GNU General Public License version |
goetz@6458 | 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
goetz@6458 | 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
goetz@6458 | 19 | * |
goetz@6458 | 20 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
goetz@6458 | 21 | * or visit www.oracle.com if you need additional information or have any |
goetz@6458 | 22 | * questions. |
goetz@6458 | 23 | * |
goetz@6458 | 24 | */ |
goetz@6458 | 25 | |
goetz@6458 | 26 | #ifndef CPU_PPC_VM_MACROASSEMBLER_PPC_INLINE_HPP |
goetz@6458 | 27 | #define CPU_PPC_VM_MACROASSEMBLER_PPC_INLINE_HPP |
goetz@6458 | 28 | |
goetz@6458 | 29 | #include "asm/assembler.inline.hpp" |
goetz@6458 | 30 | #include "asm/macroAssembler.hpp" |
goetz@6458 | 31 | #include "asm/codeBuffer.hpp" |
goetz@6458 | 32 | #include "code/codeCache.hpp" |
goetz@6458 | 33 | |
goetz@6458 | 34 | inline bool MacroAssembler::is_ld_largeoffset(address a) { |
goetz@6458 | 35 | const int inst1 = *(int *)a; |
goetz@6458 | 36 | const int inst2 = *(int *)(a+4); |
goetz@6458 | 37 | return (is_ld(inst1)) || |
goetz@6458 | 38 | (is_addis(inst1) && is_ld(inst2) && inv_ra_field(inst2) == inv_rt_field(inst1)); |
goetz@6458 | 39 | } |
goetz@6458 | 40 | |
goetz@6458 | 41 | inline int MacroAssembler::get_ld_largeoffset_offset(address a) { |
goetz@6458 | 42 | assert(MacroAssembler::is_ld_largeoffset(a), "must be ld with large offset"); |
goetz@6458 | 43 | |
goetz@6458 | 44 | const int inst1 = *(int *)a; |
goetz@6458 | 45 | if (is_ld(inst1)) { |
goetz@6458 | 46 | return inv_d1_field(inst1); |
goetz@6458 | 47 | } else { |
goetz@6458 | 48 | const int inst2 = *(int *)(a+4); |
goetz@6458 | 49 | return (inv_d1_field(inst1) << 16) + inv_d1_field(inst2); |
goetz@6458 | 50 | } |
goetz@6458 | 51 | } |
goetz@6458 | 52 | |
goetz@6458 | 53 | inline void MacroAssembler::round_to(Register r, int modulus) { |
goetz@6458 | 54 | assert(is_power_of_2_long((jlong)modulus), "must be power of 2"); |
goetz@6458 | 55 | addi(r, r, modulus-1); |
goetz@6458 | 56 | clrrdi(r, r, log2_long((jlong)modulus)); |
goetz@6458 | 57 | } |
goetz@6458 | 58 | |
goetz@6458 | 59 | // Move register if destination register and target register are different. |
goetz@6458 | 60 | inline void MacroAssembler::mr_if_needed(Register rd, Register rs) { |
goetz@6495 | 61 | if (rs != rd) mr(rd, rs); |
goetz@6458 | 62 | } |
goetz@6495 | 63 | inline void MacroAssembler::fmr_if_needed(FloatRegister rd, FloatRegister rs) { |
goetz@6495 | 64 | if (rs != rd) fmr(rd, rs); |
goetz@6495 | 65 | } |
goetz@6495 | 66 | inline void MacroAssembler::endgroup_if_needed(bool needed) { |
goetz@6495 | 67 | if (needed) { |
goetz@6495 | 68 | endgroup(); |
goetz@6495 | 69 | } |
goetz@6495 | 70 | } |
goetz@6495 | 71 | |
goetz@6495 | 72 | inline void MacroAssembler::membar(int bits) { |
goetz@6495 | 73 | // TODO: use elemental_membar(bits) for Power 8 and disable optimization of acquire-release |
goetz@6495 | 74 | // (Matcher::post_membar_release where we use PPC64_ONLY(xop == Op_MemBarRelease ||)) |
goetz@6495 | 75 | if (bits & StoreLoad) sync(); else lwsync(); |
goetz@6495 | 76 | } |
goetz@6495 | 77 | inline void MacroAssembler::release() { membar(LoadStore | StoreStore); } |
goetz@6495 | 78 | inline void MacroAssembler::acquire() { membar(LoadLoad | LoadStore); } |
goetz@6495 | 79 | inline void MacroAssembler::fence() { membar(LoadLoad | LoadStore | StoreLoad | StoreStore); } |
goetz@6458 | 80 | |
goetz@6458 | 81 | // Address of the global TOC. |
goetz@6458 | 82 | inline address MacroAssembler::global_toc() { |
goetz@6458 | 83 | return CodeCache::low_bound(); |
goetz@6458 | 84 | } |
goetz@6458 | 85 | |
goetz@6458 | 86 | // Offset of given address to the global TOC. |
goetz@6458 | 87 | inline int MacroAssembler::offset_to_global_toc(const address addr) { |
goetz@6458 | 88 | intptr_t offset = (intptr_t)addr - (intptr_t)MacroAssembler::global_toc(); |
goetz@6458 | 89 | assert(Assembler::is_simm((long)offset, 31) && offset >= 0, "must be in range"); |
goetz@6458 | 90 | return (int)offset; |
goetz@6458 | 91 | } |
goetz@6458 | 92 | |
goetz@6458 | 93 | // Address of current method's TOC. |
goetz@6458 | 94 | inline address MacroAssembler::method_toc() { |
goetz@6458 | 95 | return code()->consts()->start(); |
goetz@6458 | 96 | } |
goetz@6458 | 97 | |
goetz@6458 | 98 | // Offset of given address to current method's TOC. |
goetz@6458 | 99 | inline int MacroAssembler::offset_to_method_toc(address addr) { |
goetz@6458 | 100 | intptr_t offset = (intptr_t)addr - (intptr_t)method_toc(); |
goetz@6458 | 101 | assert(is_simm((long)offset, 31) && offset >= 0, "must be in range"); |
goetz@6458 | 102 | return (int)offset; |
goetz@6458 | 103 | } |
goetz@6458 | 104 | |
goetz@6458 | 105 | inline bool MacroAssembler::is_calculate_address_from_global_toc_at(address a, address bound) { |
goetz@6458 | 106 | const address inst2_addr = a; |
goetz@6458 | 107 | const int inst2 = *(int *) a; |
goetz@6458 | 108 | |
goetz@6458 | 109 | // The relocation points to the second instruction, the addi. |
goetz@6458 | 110 | if (!is_addi(inst2)) return false; |
goetz@6458 | 111 | |
goetz@6458 | 112 | // The addi reads and writes the same register dst. |
goetz@6458 | 113 | const int dst = inv_rt_field(inst2); |
goetz@6458 | 114 | if (inv_ra_field(inst2) != dst) return false; |
goetz@6458 | 115 | |
goetz@6458 | 116 | // Now, find the preceding addis which writes to dst. |
goetz@6458 | 117 | int inst1 = 0; |
goetz@6458 | 118 | address inst1_addr = inst2_addr - BytesPerInstWord; |
goetz@6458 | 119 | while (inst1_addr >= bound) { |
goetz@6458 | 120 | inst1 = *(int *) inst1_addr; |
goetz@6458 | 121 | if (is_addis(inst1) && inv_rt_field(inst1) == dst) { |
goetz@6458 | 122 | // stop, found the addis which writes dst |
goetz@6458 | 123 | break; |
goetz@6458 | 124 | } |
goetz@6458 | 125 | inst1_addr -= BytesPerInstWord; |
goetz@6458 | 126 | } |
goetz@6458 | 127 | |
goetz@6458 | 128 | if (!(inst1 == 0 || inv_ra_field(inst1) == 29 /* R29 */)) return false; |
goetz@6458 | 129 | return is_addis(inst1); |
goetz@6458 | 130 | } |
goetz@6458 | 131 | |
goetz@6458 | 132 | #ifdef _LP64 |
goetz@6458 | 133 | // Detect narrow oop constants. |
goetz@6458 | 134 | inline bool MacroAssembler::is_set_narrow_oop(address a, address bound) { |
goetz@6458 | 135 | const address inst2_addr = a; |
goetz@6458 | 136 | const int inst2 = *(int *)a; |
goetz@6495 | 137 | // The relocation points to the second instruction, the ori. |
goetz@6495 | 138 | if (!is_ori(inst2)) return false; |
goetz@6458 | 139 | |
goetz@6495 | 140 | // The ori reads and writes the same register dst. |
goetz@6495 | 141 | const int dst = inv_rta_field(inst2); |
goetz@6495 | 142 | if (inv_rs_field(inst2) != dst) return false; |
goetz@6458 | 143 | |
goetz@6458 | 144 | // Now, find the preceding addis which writes to dst. |
goetz@6458 | 145 | int inst1 = 0; |
goetz@6458 | 146 | address inst1_addr = inst2_addr - BytesPerInstWord; |
goetz@6458 | 147 | while (inst1_addr >= bound) { |
goetz@6458 | 148 | inst1 = *(int *) inst1_addr; |
goetz@6458 | 149 | if (is_lis(inst1) && inv_rs_field(inst1) == dst) return true; |
goetz@6458 | 150 | inst1_addr -= BytesPerInstWord; |
goetz@6458 | 151 | } |
goetz@6458 | 152 | return false; |
goetz@6458 | 153 | } |
goetz@6458 | 154 | #endif |
goetz@6458 | 155 | |
goetz@6458 | 156 | |
goetz@6458 | 157 | inline bool MacroAssembler::is_load_const_at(address a) { |
goetz@6458 | 158 | const int* p_inst = (int *) a; |
goetz@6458 | 159 | bool b = is_lis(*p_inst++); |
goetz@6458 | 160 | if (is_ori(*p_inst)) { |
goetz@6458 | 161 | p_inst++; |
goetz@6458 | 162 | b = b && is_rldicr(*p_inst++); // TODO: could be made more precise: `sldi'! |
goetz@6458 | 163 | b = b && is_oris(*p_inst++); |
goetz@6458 | 164 | b = b && is_ori(*p_inst); |
goetz@6458 | 165 | } else if (is_lis(*p_inst)) { |
goetz@6458 | 166 | p_inst++; |
goetz@6458 | 167 | b = b && is_ori(*p_inst++); |
goetz@6458 | 168 | b = b && is_ori(*p_inst); |
goetz@6458 | 169 | // TODO: could enhance reliability by adding is_insrdi |
goetz@6458 | 170 | } else return false; |
goetz@6458 | 171 | return b; |
goetz@6458 | 172 | } |
goetz@6458 | 173 | |
goetz@6458 | 174 | inline void MacroAssembler::set_oop_constant(jobject obj, Register d) { |
goetz@6458 | 175 | set_oop(constant_oop_address(obj), d); |
goetz@6458 | 176 | } |
goetz@6458 | 177 | |
goetz@6458 | 178 | inline void MacroAssembler::set_oop(AddressLiteral obj_addr, Register d) { |
goetz@6458 | 179 | assert(obj_addr.rspec().type() == relocInfo::oop_type, "must be an oop reloc"); |
goetz@6458 | 180 | load_const(d, obj_addr); |
goetz@6458 | 181 | } |
goetz@6458 | 182 | |
goetz@6458 | 183 | inline void MacroAssembler::pd_patch_instruction(address branch, address target) { |
goetz@6458 | 184 | jint& stub_inst = *(jint*) branch; |
goetz@6458 | 185 | stub_inst = patched_branch(target - branch, stub_inst, 0); |
goetz@6458 | 186 | } |
goetz@6458 | 187 | |
goetz@6458 | 188 | // Relocation of conditional far branches. |
goetz@6458 | 189 | inline bool MacroAssembler::is_bc_far_variant1_at(address instruction_addr) { |
goetz@6458 | 190 | // Variant 1, the 1st instruction contains the destination address: |
goetz@6458 | 191 | // |
goetz@6458 | 192 | // bcxx DEST |
goetz@6458 | 193 | // endgroup |
goetz@6458 | 194 | // |
goetz@6458 | 195 | const int instruction_1 = *(int*)(instruction_addr); |
goetz@6458 | 196 | const int instruction_2 = *(int*)(instruction_addr + 4); |
goetz@6458 | 197 | return is_bcxx(instruction_1) && |
goetz@6458 | 198 | (inv_bd_field(instruction_1, (intptr_t)instruction_addr) != (intptr_t)(instruction_addr + 2*4)) && |
goetz@6458 | 199 | is_endgroup(instruction_2); |
goetz@6458 | 200 | } |
goetz@6458 | 201 | |
goetz@6458 | 202 | // Relocation of conditional far branches. |
goetz@6458 | 203 | inline bool MacroAssembler::is_bc_far_variant2_at(address instruction_addr) { |
goetz@6458 | 204 | // Variant 2, the 2nd instruction contains the destination address: |
goetz@6458 | 205 | // |
goetz@6458 | 206 | // b!cxx SKIP |
goetz@6458 | 207 | // bxx DEST |
goetz@6458 | 208 | // SKIP: |
goetz@6458 | 209 | // |
goetz@6458 | 210 | const int instruction_1 = *(int*)(instruction_addr); |
goetz@6458 | 211 | const int instruction_2 = *(int*)(instruction_addr + 4); |
goetz@6458 | 212 | return is_bcxx(instruction_1) && |
goetz@6458 | 213 | (inv_bd_field(instruction_1, (intptr_t)instruction_addr) == (intptr_t)(instruction_addr + 2*4)) && |
goetz@6458 | 214 | is_bxx(instruction_2); |
goetz@6458 | 215 | } |
goetz@6458 | 216 | |
goetz@6458 | 217 | // Relocation for conditional branches |
goetz@6458 | 218 | inline bool MacroAssembler::is_bc_far_variant3_at(address instruction_addr) { |
goetz@6458 | 219 | // Variant 3, far cond branch to the next instruction, already patched to nops: |
goetz@6458 | 220 | // |
goetz@6458 | 221 | // nop |
goetz@6458 | 222 | // endgroup |
goetz@6458 | 223 | // SKIP/DEST: |
goetz@6458 | 224 | // |
goetz@6458 | 225 | const int instruction_1 = *(int*)(instruction_addr); |
goetz@6458 | 226 | const int instruction_2 = *(int*)(instruction_addr + 4); |
goetz@6458 | 227 | return is_nop(instruction_1) && |
goetz@6458 | 228 | is_endgroup(instruction_2); |
goetz@6458 | 229 | } |
goetz@6458 | 230 | |
goetz@6458 | 231 | |
goetz@6458 | 232 | // Convenience bc_far versions |
goetz@6458 | 233 | inline void MacroAssembler::blt_far(ConditionRegister crx, Label& L, int optimize) { MacroAssembler::bc_far(bcondCRbiIs1, bi0(crx, less), L, optimize); } |
goetz@6458 | 234 | inline void MacroAssembler::bgt_far(ConditionRegister crx, Label& L, int optimize) { MacroAssembler::bc_far(bcondCRbiIs1, bi0(crx, greater), L, optimize); } |
goetz@6458 | 235 | inline void MacroAssembler::beq_far(ConditionRegister crx, Label& L, int optimize) { MacroAssembler::bc_far(bcondCRbiIs1, bi0(crx, equal), L, optimize); } |
goetz@6458 | 236 | inline void MacroAssembler::bso_far(ConditionRegister crx, Label& L, int optimize) { MacroAssembler::bc_far(bcondCRbiIs1, bi0(crx, summary_overflow), L, optimize); } |
goetz@6458 | 237 | inline void MacroAssembler::bge_far(ConditionRegister crx, Label& L, int optimize) { MacroAssembler::bc_far(bcondCRbiIs0, bi0(crx, less), L, optimize); } |
goetz@6458 | 238 | inline void MacroAssembler::ble_far(ConditionRegister crx, Label& L, int optimize) { MacroAssembler::bc_far(bcondCRbiIs0, bi0(crx, greater), L, optimize); } |
goetz@6458 | 239 | inline void MacroAssembler::bne_far(ConditionRegister crx, Label& L, int optimize) { MacroAssembler::bc_far(bcondCRbiIs0, bi0(crx, equal), L, optimize); } |
goetz@6458 | 240 | inline void MacroAssembler::bns_far(ConditionRegister crx, Label& L, int optimize) { MacroAssembler::bc_far(bcondCRbiIs0, bi0(crx, summary_overflow), L, optimize); } |
goetz@6458 | 241 | |
goetz@6458 | 242 | inline address MacroAssembler::call_stub(Register function_entry) { |
goetz@6458 | 243 | mtctr(function_entry); |
goetz@6458 | 244 | bctrl(); |
goetz@6458 | 245 | return pc(); |
goetz@6458 | 246 | } |
goetz@6458 | 247 | |
goetz@6458 | 248 | inline void MacroAssembler::call_stub_and_return_to(Register function_entry, Register return_pc) { |
goetz@6458 | 249 | assert_different_registers(function_entry, return_pc); |
goetz@6458 | 250 | mtlr(return_pc); |
goetz@6458 | 251 | mtctr(function_entry); |
goetz@6458 | 252 | bctr(); |
goetz@6458 | 253 | } |
goetz@6458 | 254 | |
goetz@6458 | 255 | // Get the pc where the last emitted call will return to. |
goetz@6458 | 256 | inline address MacroAssembler::last_calls_return_pc() { |
goetz@6458 | 257 | return _last_calls_return_pc; |
goetz@6458 | 258 | } |
goetz@6458 | 259 | |
goetz@6458 | 260 | // Read from the polling page, its address is already in a register. |
goetz@6458 | 261 | inline void MacroAssembler::load_from_polling_page(Register polling_page_address, int offset) { |
goetz@6458 | 262 | ld(R0, offset, polling_page_address); |
goetz@6458 | 263 | } |
goetz@6458 | 264 | |
goetz@6458 | 265 | // Trap-instruction-based checks. |
goetz@6458 | 266 | |
goetz@6458 | 267 | inline void MacroAssembler::trap_null_check(Register a, trap_to_bits cmp) { |
goetz@6458 | 268 | assert(TrapBasedNullChecks, "sanity"); |
goetz@6458 | 269 | tdi(cmp, a/*reg a*/, 0); |
goetz@6458 | 270 | } |
goetz@6458 | 271 | inline void MacroAssembler::trap_zombie_not_entrant() { |
goetz@6458 | 272 | tdi(traptoUnconditional, 0/*reg 0*/, 1); |
goetz@6458 | 273 | } |
goetz@6458 | 274 | inline void MacroAssembler::trap_should_not_reach_here() { |
goetz@6458 | 275 | tdi_unchecked(traptoUnconditional, 0/*reg 0*/, 2); |
goetz@6458 | 276 | } |
goetz@6458 | 277 | |
goetz@6458 | 278 | inline void MacroAssembler::trap_ic_miss_check(Register a, Register b) { |
goetz@6458 | 279 | td(traptoGreaterThanUnsigned | traptoLessThanUnsigned, a, b); |
goetz@6458 | 280 | } |
goetz@6458 | 281 | |
goetz@6458 | 282 | // Do an explicit null check if access to a+offset will not raise a SIGSEGV. |
goetz@6458 | 283 | // Either issue a trap instruction that raises SIGTRAP, or do a compare that |
goetz@6458 | 284 | // branches to exception_entry. |
goetz@6495 | 285 | // No support for compressed oops (base page of heap). Does not distinguish |
goetz@6458 | 286 | // loads and stores. |
goetz@6495 | 287 | inline void MacroAssembler::null_check_throw(Register a, int offset, Register temp_reg, |
goetz@6495 | 288 | address exception_entry) { |
goetz@6486 | 289 | if (!ImplicitNullChecks || needs_explicit_null_check(offset) || !os::zero_page_read_protected()) { |
goetz@6458 | 290 | if (TrapBasedNullChecks) { |
goetz@6458 | 291 | assert(UseSIGTRAP, "sanity"); |
goetz@6458 | 292 | trap_null_check(a); |
goetz@6458 | 293 | } else { |
goetz@6458 | 294 | Label ok; |
goetz@6458 | 295 | cmpdi(CCR0, a, 0); |
goetz@6458 | 296 | bne(CCR0, ok); |
goetz@6458 | 297 | load_const_optimized(temp_reg, exception_entry); |
goetz@6458 | 298 | mtctr(temp_reg); |
goetz@6458 | 299 | bctr(); |
goetz@6458 | 300 | bind(ok); |
goetz@6458 | 301 | } |
goetz@6458 | 302 | } |
goetz@6458 | 303 | } |
goetz@6458 | 304 | |
goetz@6495 | 305 | inline void MacroAssembler::load_with_trap_null_check(Register d, int si16, Register s1) { |
goetz@6486 | 306 | if (!os::zero_page_read_protected()) { |
goetz@6458 | 307 | if (TrapBasedNullChecks) { |
goetz@6458 | 308 | trap_null_check(s1); |
goetz@6458 | 309 | } |
goetz@6458 | 310 | } |
goetz@6458 | 311 | ld(d, si16, s1); |
goetz@6458 | 312 | } |
goetz@6458 | 313 | |
goetz@6458 | 314 | inline void MacroAssembler::load_heap_oop_not_null(Register d, RegisterOrConstant offs, Register s1) { |
goetz@6458 | 315 | if (UseCompressedOops) { |
goetz@6458 | 316 | lwz(d, offs, s1); |
goetz@6458 | 317 | // Attention: no null check here! |
goetz@6458 | 318 | decode_heap_oop_not_null(d); |
goetz@6458 | 319 | } else { |
goetz@6458 | 320 | ld(d, offs, s1); |
goetz@6458 | 321 | } |
goetz@6458 | 322 | } |
goetz@6458 | 323 | |
goetz@6458 | 324 | inline void MacroAssembler::load_heap_oop(Register d, RegisterOrConstant offs, Register s1) { |
goetz@6458 | 325 | if (UseCompressedOops) { |
goetz@6458 | 326 | lwz(d, offs, s1); |
goetz@6458 | 327 | decode_heap_oop(d); |
goetz@6458 | 328 | } else { |
goetz@6458 | 329 | ld(d, offs, s1); |
goetz@6458 | 330 | } |
goetz@6458 | 331 | } |
goetz@6458 | 332 | |
goetz@6458 | 333 | inline void MacroAssembler::encode_heap_oop_not_null(Register d) { |
goetz@6458 | 334 | if (Universe::narrow_oop_base() != NULL) { |
goetz@6458 | 335 | sub(d, d, R30); |
goetz@6458 | 336 | } |
goetz@6458 | 337 | if (Universe::narrow_oop_shift() != 0) { |
goetz@6458 | 338 | srdi(d, d, LogMinObjAlignmentInBytes); |
goetz@6458 | 339 | } |
goetz@6458 | 340 | } |
goetz@6458 | 341 | |
goetz@6458 | 342 | inline void MacroAssembler::decode_heap_oop_not_null(Register d) { |
goetz@6458 | 343 | if (Universe::narrow_oop_shift() != 0) { |
goetz@6458 | 344 | assert (LogMinObjAlignmentInBytes == Universe::narrow_oop_shift(), "decode alg wrong"); |
goetz@6458 | 345 | sldi(d, d, LogMinObjAlignmentInBytes); |
goetz@6458 | 346 | } |
goetz@6458 | 347 | if (Universe::narrow_oop_base() != NULL) { |
goetz@6458 | 348 | add(d, d, R30); |
goetz@6458 | 349 | } |
goetz@6458 | 350 | } |
goetz@6458 | 351 | |
goetz@6458 | 352 | inline void MacroAssembler::decode_heap_oop(Register d) { |
goetz@6458 | 353 | Label isNull; |
goetz@6458 | 354 | if (Universe::narrow_oop_base() != NULL) { |
goetz@6458 | 355 | cmpwi(CCR0, d, 0); |
goetz@6458 | 356 | beq(CCR0, isNull); |
goetz@6458 | 357 | } |
goetz@6458 | 358 | if (Universe::narrow_oop_shift() != 0) { |
goetz@6458 | 359 | assert (LogMinObjAlignmentInBytes == Universe::narrow_oop_shift(), "decode alg wrong"); |
goetz@6458 | 360 | sldi(d, d, LogMinObjAlignmentInBytes); |
goetz@6458 | 361 | } |
goetz@6458 | 362 | if (Universe::narrow_oop_base() != NULL) { |
goetz@6458 | 363 | add(d, d, R30); |
goetz@6458 | 364 | } |
goetz@6458 | 365 | bind(isNull); |
goetz@6458 | 366 | } |
goetz@6458 | 367 | |
goetz@6458 | 368 | // SIGTRAP-based range checks for arrays. |
goetz@6458 | 369 | inline void MacroAssembler::trap_range_check_l(Register a, Register b) { |
goetz@6458 | 370 | tw (traptoLessThanUnsigned, a/*reg a*/, b/*reg b*/); |
goetz@6458 | 371 | } |
goetz@6458 | 372 | inline void MacroAssembler::trap_range_check_l(Register a, int si16) { |
goetz@6458 | 373 | twi(traptoLessThanUnsigned, a/*reg a*/, si16); |
goetz@6458 | 374 | } |
goetz@6458 | 375 | inline void MacroAssembler::trap_range_check_le(Register a, int si16) { |
goetz@6458 | 376 | twi(traptoEqual | traptoLessThanUnsigned, a/*reg a*/, si16); |
goetz@6458 | 377 | } |
goetz@6458 | 378 | inline void MacroAssembler::trap_range_check_g(Register a, int si16) { |
goetz@6458 | 379 | twi(traptoGreaterThanUnsigned, a/*reg a*/, si16); |
goetz@6458 | 380 | } |
goetz@6458 | 381 | inline void MacroAssembler::trap_range_check_ge(Register a, Register b) { |
goetz@6458 | 382 | tw (traptoEqual | traptoGreaterThanUnsigned, a/*reg a*/, b/*reg b*/); |
goetz@6458 | 383 | } |
goetz@6458 | 384 | inline void MacroAssembler::trap_range_check_ge(Register a, int si16) { |
goetz@6458 | 385 | twi(traptoEqual | traptoGreaterThanUnsigned, a/*reg a*/, si16); |
goetz@6458 | 386 | } |
goetz@6458 | 387 | |
goetz@6511 | 388 | #if defined(ABI_ELFv2) |
goetz@6511 | 389 | inline address MacroAssembler::function_entry() { return pc(); } |
goetz@6511 | 390 | #else |
goetz@6511 | 391 | inline address MacroAssembler::function_entry() { return emit_fd(); } |
goetz@6511 | 392 | #endif |
goetz@6511 | 393 | |
goetz@6458 | 394 | #endif // CPU_PPC_VM_MACROASSEMBLER_PPC_INLINE_HPP |