OLD | NEW |
1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
(...skipping 4261 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
4272 void MacroAssembler::LeaveFrame(StackFrame::Type type) { | 4272 void MacroAssembler::LeaveFrame(StackFrame::Type type) { |
4273 mov(sp, fp); | 4273 mov(sp, fp); |
4274 lw(fp, MemOperand(sp, 0 * kPointerSize)); | 4274 lw(fp, MemOperand(sp, 0 * kPointerSize)); |
4275 lw(ra, MemOperand(sp, 1 * kPointerSize)); | 4275 lw(ra, MemOperand(sp, 1 * kPointerSize)); |
4276 addiu(sp, sp, 2 * kPointerSize); | 4276 addiu(sp, sp, 2 * kPointerSize); |
4277 } | 4277 } |
4278 | 4278 |
4279 | 4279 |
4280 void MacroAssembler::EnterExitFrame(bool save_doubles, | 4280 void MacroAssembler::EnterExitFrame(bool save_doubles, |
4281 int stack_space) { | 4281 int stack_space) { |
4282 // Setup the frame structure on the stack. | 4282 // Set up the frame structure on the stack. |
4283 STATIC_ASSERT(2 * kPointerSize == ExitFrameConstants::kCallerSPDisplacement); | 4283 STATIC_ASSERT(2 * kPointerSize == ExitFrameConstants::kCallerSPDisplacement); |
4284 STATIC_ASSERT(1 * kPointerSize == ExitFrameConstants::kCallerPCOffset); | 4284 STATIC_ASSERT(1 * kPointerSize == ExitFrameConstants::kCallerPCOffset); |
4285 STATIC_ASSERT(0 * kPointerSize == ExitFrameConstants::kCallerFPOffset); | 4285 STATIC_ASSERT(0 * kPointerSize == ExitFrameConstants::kCallerFPOffset); |
4286 | 4286 |
4287 // This is how the stack will look: | 4287 // This is how the stack will look: |
4288 // fp + 2 (==kCallerSPDisplacement) - old stack's end | 4288 // fp + 2 (==kCallerSPDisplacement) - old stack's end |
4289 // [fp + 1 (==kCallerPCOffset)] - saved old ra | 4289 // [fp + 1 (==kCallerPCOffset)] - saved old ra |
4290 // [fp + 0 (==kCallerFPOffset)] - saved old fp | 4290 // [fp + 0 (==kCallerFPOffset)] - saved old fp |
4291 // [fp - 1 (==kSPOffset)] - sp of the called function | 4291 // [fp - 1 (==kSPOffset)] - sp of the called function |
4292 // [fp - 2 (==kCodeOffset)] - CodeObject | 4292 // [fp - 2 (==kCodeOffset)] - CodeObject |
4293 // fp - (2 + stack_space + alignment) == sp == [fp - kSPOffset] - top of the | 4293 // fp - (2 + stack_space + alignment) == sp == [fp - kSPOffset] - top of the |
4294 // new stack (will contain saved ra) | 4294 // new stack (will contain saved ra) |
4295 | 4295 |
4296 // Save registers. | 4296 // Save registers. |
4297 addiu(sp, sp, -4 * kPointerSize); | 4297 addiu(sp, sp, -4 * kPointerSize); |
4298 sw(ra, MemOperand(sp, 3 * kPointerSize)); | 4298 sw(ra, MemOperand(sp, 3 * kPointerSize)); |
4299 sw(fp, MemOperand(sp, 2 * kPointerSize)); | 4299 sw(fp, MemOperand(sp, 2 * kPointerSize)); |
4300 addiu(fp, sp, 2 * kPointerSize); // Setup new frame pointer. | 4300 addiu(fp, sp, 2 * kPointerSize); // Set up new frame pointer. |
4301 | 4301 |
4302 if (emit_debug_code()) { | 4302 if (emit_debug_code()) { |
4303 sw(zero_reg, MemOperand(fp, ExitFrameConstants::kSPOffset)); | 4303 sw(zero_reg, MemOperand(fp, ExitFrameConstants::kSPOffset)); |
4304 } | 4304 } |
4305 | 4305 |
4306 li(t8, Operand(CodeObject())); // Accessed from ExitFrame::code_slot. | 4306 li(t8, Operand(CodeObject())); // Accessed from ExitFrame::code_slot. |
4307 sw(t8, MemOperand(fp, ExitFrameConstants::kCodeOffset)); | 4307 sw(t8, MemOperand(fp, ExitFrameConstants::kCodeOffset)); |
4308 | 4308 |
4309 // Save the frame pointer and the context in top. | 4309 // Save the frame pointer and the context in top. |
4310 li(t8, Operand(ExternalReference(Isolate::kCEntryFPAddress, isolate()))); | 4310 li(t8, Operand(ExternalReference(Isolate::kCEntryFPAddress, isolate()))); |
(...skipping 734 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
5045 opcode == BGTZL); | 5045 opcode == BGTZL); |
5046 opcode = (cond == eq) ? BEQ : BNE; | 5046 opcode = (cond == eq) ? BEQ : BNE; |
5047 instr = (instr & ~kOpcodeMask) | opcode; | 5047 instr = (instr & ~kOpcodeMask) | opcode; |
5048 masm_.emit(instr); | 5048 masm_.emit(instr); |
5049 } | 5049 } |
5050 | 5050 |
5051 | 5051 |
5052 } } // namespace v8::internal | 5052 } } // namespace v8::internal |
5053 | 5053 |
5054 #endif // V8_TARGET_ARCH_MIPS | 5054 #endif // V8_TARGET_ARCH_MIPS |
OLD | NEW |