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Issue 194613005: MIPS: Mode clean-up pt 1: rename classic/non-strict mode to sloppy mode. (Closed) Base URL: https://github.com/v8/v8.git@gbl
Patch Set: Created 6 years, 9 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 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
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2358 __ lw(v0, MemOperand(a3, kDisplacement)); 2358 __ lw(v0, MemOperand(a3, kDisplacement));
2359 2359
2360 // Slow-case: Handle non-smi or out-of-bounds access to arguments 2360 // Slow-case: Handle non-smi or out-of-bounds access to arguments
2361 // by calling the runtime system. 2361 // by calling the runtime system.
2362 __ bind(&slow); 2362 __ bind(&slow);
2363 __ push(a1); 2363 __ push(a1);
2364 __ TailCallRuntime(Runtime::kGetArgumentsProperty, 1, 1); 2364 __ TailCallRuntime(Runtime::kGetArgumentsProperty, 1, 1);
2365 } 2365 }
2366 2366
2367 2367
2368 void ArgumentsAccessStub::GenerateNewNonStrictSlow(MacroAssembler* masm) { 2368 void ArgumentsAccessStub::GenerateNewSloppySlow(MacroAssembler* masm) {
2369 // sp[0] : number of parameters 2369 // sp[0] : number of parameters
2370 // sp[4] : receiver displacement 2370 // sp[4] : receiver displacement
2371 // sp[8] : function 2371 // sp[8] : function
2372 // Check if the calling frame is an arguments adaptor frame. 2372 // Check if the calling frame is an arguments adaptor frame.
2373 Label runtime; 2373 Label runtime;
2374 __ lw(a3, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); 2374 __ lw(a3, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
2375 __ lw(a2, MemOperand(a3, StandardFrameConstants::kContextOffset)); 2375 __ lw(a2, MemOperand(a3, StandardFrameConstants::kContextOffset));
2376 __ Branch(&runtime, 2376 __ Branch(&runtime,
2377 ne, 2377 ne,
2378 a2, 2378 a2,
2379 Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); 2379 Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
2380 2380
2381 // Patch the arguments.length and the parameters pointer in the current frame. 2381 // Patch the arguments.length and the parameters pointer in the current frame.
2382 __ lw(a2, MemOperand(a3, ArgumentsAdaptorFrameConstants::kLengthOffset)); 2382 __ lw(a2, MemOperand(a3, ArgumentsAdaptorFrameConstants::kLengthOffset));
2383 __ sw(a2, MemOperand(sp, 0 * kPointerSize)); 2383 __ sw(a2, MemOperand(sp, 0 * kPointerSize));
2384 __ sll(t3, a2, 1); 2384 __ sll(t3, a2, 1);
2385 __ Addu(a3, a3, Operand(t3)); 2385 __ Addu(a3, a3, Operand(t3));
2386 __ addiu(a3, a3, StandardFrameConstants::kCallerSPOffset); 2386 __ addiu(a3, a3, StandardFrameConstants::kCallerSPOffset);
2387 __ sw(a3, MemOperand(sp, 1 * kPointerSize)); 2387 __ sw(a3, MemOperand(sp, 1 * kPointerSize));
2388 2388
2389 __ bind(&runtime); 2389 __ bind(&runtime);
2390 __ TailCallRuntime(Runtime::kNewArgumentsFast, 3, 1); 2390 __ TailCallRuntime(Runtime::kNewArgumentsFast, 3, 1);
2391 } 2391 }
2392 2392
2393 2393
2394 void ArgumentsAccessStub::GenerateNewNonStrictFast(MacroAssembler* masm) { 2394 void ArgumentsAccessStub::GenerateNewSloppyFast(MacroAssembler* masm) {
2395 // Stack layout: 2395 // Stack layout:
2396 // sp[0] : number of parameters (tagged) 2396 // sp[0] : number of parameters (tagged)
2397 // sp[4] : address of receiver argument 2397 // sp[4] : address of receiver argument
2398 // sp[8] : function 2398 // sp[8] : function
2399 // Registers used over whole function: 2399 // Registers used over whole function:
2400 // t2 : allocated object (tagged) 2400 // t2 : allocated object (tagged)
2401 // t5 : mapped parameter count (tagged) 2401 // t5 : mapped parameter count (tagged)
2402 2402
2403 __ lw(a1, MemOperand(sp, 0 * kPointerSize)); 2403 __ lw(a1, MemOperand(sp, 0 * kPointerSize));
2404 // a1 = parameter count (tagged) 2404 // a1 = parameter count (tagged)
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2516 Label skip_parameter_map; 2516 Label skip_parameter_map;
2517 Label skip3; 2517 Label skip3;
2518 __ Branch(&skip3, ne, a1, Operand(Smi::FromInt(0))); 2518 __ Branch(&skip3, ne, a1, Operand(Smi::FromInt(0)));
2519 // Move backing store address to a3, because it is 2519 // Move backing store address to a3, because it is
2520 // expected there when filling in the unmapped arguments. 2520 // expected there when filling in the unmapped arguments.
2521 __ mov(a3, t0); 2521 __ mov(a3, t0);
2522 __ bind(&skip3); 2522 __ bind(&skip3);
2523 2523
2524 __ Branch(&skip_parameter_map, eq, a1, Operand(Smi::FromInt(0))); 2524 __ Branch(&skip_parameter_map, eq, a1, Operand(Smi::FromInt(0)));
2525 2525
2526 __ LoadRoot(t2, Heap::kNonStrictArgumentsElementsMapRootIndex); 2526 __ LoadRoot(t2, Heap::kSloppyArgumentsElementsMapRootIndex);
2527 __ sw(t2, FieldMemOperand(t0, FixedArray::kMapOffset)); 2527 __ sw(t2, FieldMemOperand(t0, FixedArray::kMapOffset));
2528 __ Addu(t2, a1, Operand(Smi::FromInt(2))); 2528 __ Addu(t2, a1, Operand(Smi::FromInt(2)));
2529 __ sw(t2, FieldMemOperand(t0, FixedArray::kLengthOffset)); 2529 __ sw(t2, FieldMemOperand(t0, FixedArray::kLengthOffset));
2530 __ sw(cp, FieldMemOperand(t0, FixedArray::kHeaderSize + 0 * kPointerSize)); 2530 __ sw(cp, FieldMemOperand(t0, FixedArray::kHeaderSize + 0 * kPointerSize));
2531 __ sll(t6, a1, 1); 2531 __ sll(t6, a1, 1);
2532 __ Addu(t2, t0, Operand(t6)); 2532 __ Addu(t2, t0, Operand(t6));
2533 __ Addu(t2, t2, Operand(kParameterMapHeaderSize)); 2533 __ Addu(t2, t2, Operand(kParameterMapHeaderSize));
2534 __ sw(t2, FieldMemOperand(t0, FixedArray::kHeaderSize + 1 * kPointerSize)); 2534 __ sw(t2, FieldMemOperand(t0, FixedArray::kHeaderSize + 1 * kPointerSize));
2535 2535
2536 // Copy the parameter slots and the holes in the arguments. 2536 // Copy the parameter slots and the holes in the arguments.
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3278 // Do not transform the receiver for strict mode functions and natives. 3278 // Do not transform the receiver for strict mode functions and natives.
3279 __ lw(a3, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); 3279 __ lw(a3, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
3280 __ lw(t0, FieldMemOperand(a3, SharedFunctionInfo::kCompilerHintsOffset)); 3280 __ lw(t0, FieldMemOperand(a3, SharedFunctionInfo::kCompilerHintsOffset));
3281 int32_t strict_mode_function_mask = 3281 int32_t strict_mode_function_mask =
3282 1 << (SharedFunctionInfo::kStrictModeFunction + kSmiTagSize); 3282 1 << (SharedFunctionInfo::kStrictModeFunction + kSmiTagSize);
3283 int32_t native_mask = 1 << (SharedFunctionInfo::kNative + kSmiTagSize); 3283 int32_t native_mask = 1 << (SharedFunctionInfo::kNative + kSmiTagSize);
3284 __ And(at, t0, Operand(strict_mode_function_mask | native_mask)); 3284 __ And(at, t0, Operand(strict_mode_function_mask | native_mask));
3285 __ Branch(&cont, ne, at, Operand(zero_reg)); 3285 __ Branch(&cont, ne, at, Operand(zero_reg));
3286 } 3286 }
3287 3287
3288 // Compute the receiver in non-strict mode. 3288 // Compute the receiver in sloppy mode.
3289 __ lw(a3, MemOperand(sp, argc_ * kPointerSize)); 3289 __ lw(a3, MemOperand(sp, argc_ * kPointerSize));
3290 3290
3291 if (NeedsChecks()) { 3291 if (NeedsChecks()) {
3292 __ JumpIfSmi(a3, &wrap); 3292 __ JumpIfSmi(a3, &wrap);
3293 __ GetObjectType(a3, t0, t0); 3293 __ GetObjectType(a3, t0, t0);
3294 __ Branch(&wrap, lt, t0, Operand(FIRST_SPEC_OBJECT_TYPE)); 3294 __ Branch(&wrap, lt, t0, Operand(FIRST_SPEC_OBJECT_TYPE));
3295 } else { 3295 } else {
3296 __ jmp(&wrap); 3296 __ jmp(&wrap);
3297 } 3297 }
3298 3298
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5758 MemOperand(fp, 6 * kPointerSize), 5758 MemOperand(fp, 6 * kPointerSize),
5759 NULL); 5759 NULL);
5760 } 5760 }
5761 5761
5762 5762
5763 #undef __ 5763 #undef __
5764 5764
5765 } } // namespace v8::internal 5765 } } // namespace v8::internal
5766 5766
5767 #endif // V8_TARGET_ARCH_MIPS 5767 #endif // V8_TARGET_ARCH_MIPS
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