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Issue 393693003: MIPS: Use register parameters in ElementsTransitionGenerator. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Add mips64 port. Created 6 years, 5 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 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 5
6 6
7 #include "src/v8.h" 7 #include "src/v8.h"
8 8
9 #if V8_TARGET_ARCH_MIPS 9 #if V8_TARGET_ARCH_MIPS
10 10
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920 __ LoadRoot(at, Heap::kHeapNumberMapRootIndex); 920 __ LoadRoot(at, Heap::kHeapNumberMapRootIndex);
921 __ Branch(&non_double_value, ne, t0, Operand(at)); 921 __ Branch(&non_double_value, ne, t0, Operand(at));
922 922
923 // Value is a double. Transition FAST_SMI_ELEMENTS -> 923 // Value is a double. Transition FAST_SMI_ELEMENTS ->
924 // FAST_DOUBLE_ELEMENTS and complete the store. 924 // FAST_DOUBLE_ELEMENTS and complete the store.
925 __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, 925 __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS,
926 FAST_DOUBLE_ELEMENTS, 926 FAST_DOUBLE_ELEMENTS,
927 receiver_map, 927 receiver_map,
928 t0, 928 t0,
929 slow); 929 slow);
930 ASSERT(receiver_map.is(a3)); // Transition code expects map in a3
931 AllocationSiteMode mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, 930 AllocationSiteMode mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS,
932 FAST_DOUBLE_ELEMENTS); 931 FAST_DOUBLE_ELEMENTS);
933 ElementsTransitionGenerator::GenerateSmiToDouble(masm, mode, slow); 932 ElementsTransitionGenerator::GenerateSmiToDouble(
933 masm, receiver, key, value, receiver_map, mode, slow);
934 __ lw(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); 934 __ lw(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
935 __ jmp(&fast_double_without_map_check); 935 __ jmp(&fast_double_without_map_check);
936 936
937 __ bind(&non_double_value); 937 __ bind(&non_double_value);
938 // Value is not a double, FAST_SMI_ELEMENTS -> FAST_ELEMENTS 938 // Value is not a double, FAST_SMI_ELEMENTS -> FAST_ELEMENTS
939 __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, 939 __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS,
940 FAST_ELEMENTS, 940 FAST_ELEMENTS,
941 receiver_map, 941 receiver_map,
942 t0, 942 t0,
943 slow); 943 slow);
944 ASSERT(receiver_map.is(a3)); // Transition code expects map in a3
945 mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, FAST_ELEMENTS); 944 mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, FAST_ELEMENTS);
946 ElementsTransitionGenerator::GenerateMapChangeElementsTransition(masm, mode, 945 ElementsTransitionGenerator::GenerateMapChangeElementsTransition(
947 slow); 946 masm, receiver, key, value, receiver_map, mode, slow);
948 __ lw(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); 947 __ lw(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
949 __ jmp(&finish_object_store); 948 __ jmp(&finish_object_store);
950 949
951 __ bind(&transition_double_elements); 950 __ bind(&transition_double_elements);
952 // Elements are FAST_DOUBLE_ELEMENTS, but value is an Object that's not a 951 // Elements are FAST_DOUBLE_ELEMENTS, but value is an Object that's not a
953 // HeapNumber. Make sure that the receiver is a Array with FAST_ELEMENTS and 952 // HeapNumber. Make sure that the receiver is a Array with FAST_ELEMENTS and
954 // transition array from FAST_DOUBLE_ELEMENTS to FAST_ELEMENTS 953 // transition array from FAST_DOUBLE_ELEMENTS to FAST_ELEMENTS
955 __ LoadTransitionedArrayMapConditional(FAST_DOUBLE_ELEMENTS, 954 __ LoadTransitionedArrayMapConditional(FAST_DOUBLE_ELEMENTS,
956 FAST_ELEMENTS, 955 FAST_ELEMENTS,
957 receiver_map, 956 receiver_map,
958 t0, 957 t0,
959 slow); 958 slow);
960 ASSERT(receiver_map.is(a3)); // Transition code expects map in a3
961 mode = AllocationSite::GetMode(FAST_DOUBLE_ELEMENTS, FAST_ELEMENTS); 959 mode = AllocationSite::GetMode(FAST_DOUBLE_ELEMENTS, FAST_ELEMENTS);
962 ElementsTransitionGenerator::GenerateDoubleToObject(masm, mode, slow); 960 ElementsTransitionGenerator::GenerateDoubleToObject(
961 masm, receiver, key, value, receiver_map, mode, slow);
963 __ lw(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); 962 __ lw(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
964 __ jmp(&finish_object_store); 963 __ jmp(&finish_object_store);
965 } 964 }
966 965
967 966
968 void KeyedStoreIC::GenerateGeneric(MacroAssembler* masm, 967 void KeyedStoreIC::GenerateGeneric(MacroAssembler* masm,
969 StrictMode strict_mode) { 968 StrictMode strict_mode) {
970 // ---------- S t a t e -------------- 969 // ---------- S t a t e --------------
971 // -- a0 : value 970 // -- a0 : value
972 // -- a1 : key 971 // -- a1 : key
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1290 } else { 1289 } else {
1291 ASSERT(Assembler::IsBne(branch_instr)); 1290 ASSERT(Assembler::IsBne(branch_instr));
1292 patcher.ChangeBranchCondition(eq); 1291 patcher.ChangeBranchCondition(eq);
1293 } 1292 }
1294 } 1293 }
1295 1294
1296 1295
1297 } } // namespace v8::internal 1296 } } // namespace v8::internal
1298 1297
1299 #endif // V8_TARGET_ARCH_MIPS 1298 #endif // V8_TARGET_ARCH_MIPS
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