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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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 #if V8_TARGET_ARCH_S390 | 5 #if V8_TARGET_ARCH_S390 |
6 | 6 |
7 #include "src/codegen.h" | 7 #include "src/codegen.h" |
8 #include "src/debug/debug.h" | 8 #include "src/debug/debug.h" |
9 #include "src/deoptimizer.h" | 9 #include "src/deoptimizer.h" |
10 #include "src/full-codegen/full-codegen.h" | 10 #include "src/full-codegen/full-codegen.h" |
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1094 // here which will cause scratch to become negative. | 1094 // here which will cause scratch to become negative. |
1095 __ SubP(scratch, sp, scratch); | 1095 __ SubP(scratch, sp, scratch); |
1096 // Check if the arguments will overflow the stack. | 1096 // Check if the arguments will overflow the stack. |
1097 __ ShiftLeftP(r0, num_args, Operand(kPointerSizeLog2)); | 1097 __ ShiftLeftP(r0, num_args, Operand(kPointerSizeLog2)); |
1098 __ CmpP(scratch, r0); | 1098 __ CmpP(scratch, r0); |
1099 __ ble(stack_overflow); // Signed comparison. | 1099 __ ble(stack_overflow); // Signed comparison. |
1100 } | 1100 } |
1101 | 1101 |
1102 static void Generate_InterpreterPushArgs(MacroAssembler* masm, | 1102 static void Generate_InterpreterPushArgs(MacroAssembler* masm, |
1103 Register num_args, Register index, | 1103 Register num_args, Register index, |
1104 Register count, Register scratch, | 1104 Register count, Register scratch) { |
1105 Label* stack_overflow) { | |
1106 // Add a stack check before pushing arguments. | |
1107 Generate_StackOverflowCheck(masm, num_args, scratch, stack_overflow); | |
1108 | |
1109 Label loop; | 1105 Label loop; |
1110 __ AddP(index, index, Operand(kPointerSize)); // Bias up for LoadPU | 1106 __ AddP(index, index, Operand(kPointerSize)); // Bias up for LoadPU |
1111 __ LoadRR(r0, count); | 1107 __ LoadRR(r0, count); |
1112 __ bind(&loop); | 1108 __ bind(&loop); |
1113 __ LoadP(scratch, MemOperand(index, -kPointerSize)); | 1109 __ LoadP(scratch, MemOperand(index, -kPointerSize)); |
1114 __ lay(index, MemOperand(index, -kPointerSize)); | 1110 __ lay(index, MemOperand(index, -kPointerSize)); |
1115 __ push(scratch); | 1111 __ push(scratch); |
1116 __ SubP(r0, Operand(1)); | 1112 __ SubP(r0, Operand(1)); |
1117 __ bne(&loop); | 1113 __ bne(&loop); |
1118 } | 1114 } |
1119 | 1115 |
1120 // static | 1116 // static |
1121 void Builtins::Generate_InterpreterPushArgsThenCallImpl( | 1117 void Builtins::Generate_InterpreterPushArgsThenCallImpl( |
1122 MacroAssembler* masm, TailCallMode tail_call_mode, | 1118 MacroAssembler* masm, ConvertReceiverMode receiver_mode, |
1123 InterpreterPushArgsMode mode) { | 1119 TailCallMode tail_call_mode, InterpreterPushArgsMode mode) { |
1124 // ----------- S t a t e ------------- | 1120 // ----------- S t a t e ------------- |
1125 // -- r2 : the number of arguments (not including the receiver) | 1121 // -- r2 : the number of arguments (not including the receiver) |
1126 // -- r4 : the address of the first argument to be pushed. Subsequent | 1122 // -- r4 : the address of the first argument to be pushed. Subsequent |
1127 // arguments should be consecutive above this, in the same order as | 1123 // arguments should be consecutive above this, in the same order as |
1128 // they are to be pushed onto the stack. | 1124 // they are to be pushed onto the stack. |
1129 // -- r3 : the target to call (can be any Object). | 1125 // -- r3 : the target to call (can be any Object). |
1130 // ----------------------------------- | 1126 // ----------------------------------- |
1131 Label stack_overflow; | 1127 Label stack_overflow; |
1132 | 1128 |
1133 // Calculate number of arguments (AddP one for receiver). | 1129 // Calculate number of arguments (AddP one for receiver). |
1134 __ AddP(r5, r2, Operand(1)); | 1130 __ AddP(r5, r2, Operand(1)); |
| 1131 Generate_StackOverflowCheck(masm, r5, ip, &stack_overflow); |
| 1132 |
| 1133 // Push "undefined" as the receiver arg if we need to. |
| 1134 if (receiver_mode == ConvertReceiverMode::kNullOrUndefined) { |
| 1135 __ PushRoot(Heap::kUndefinedValueRootIndex); |
| 1136 __ LoadRR(r5, r2); // Argument count is correct. |
| 1137 } |
1135 | 1138 |
1136 // Push the arguments. | 1139 // Push the arguments. |
1137 Generate_InterpreterPushArgs(masm, r5, r4, r5, r6, &stack_overflow); | 1140 Generate_InterpreterPushArgs(masm, r5, r4, r5, r6); |
1138 | 1141 |
1139 // Call the target. | 1142 // Call the target. |
1140 if (mode == InterpreterPushArgsMode::kJSFunction) { | 1143 if (mode == InterpreterPushArgsMode::kJSFunction) { |
1141 __ Jump(masm->isolate()->builtins()->CallFunction(ConvertReceiverMode::kAny, | 1144 __ Jump(masm->isolate()->builtins()->CallFunction(ConvertReceiverMode::kAny, |
1142 tail_call_mode), | 1145 tail_call_mode), |
1143 RelocInfo::CODE_TARGET); | 1146 RelocInfo::CODE_TARGET); |
1144 } else if (mode == InterpreterPushArgsMode::kWithFinalSpread) { | 1147 } else if (mode == InterpreterPushArgsMode::kWithFinalSpread) { |
1145 __ Jump(masm->isolate()->builtins()->CallWithSpread(), | 1148 __ Jump(masm->isolate()->builtins()->CallWithSpread(), |
1146 RelocInfo::CODE_TARGET); | 1149 RelocInfo::CODE_TARGET); |
1147 } else { | 1150 } else { |
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1171 Label stack_overflow; | 1174 Label stack_overflow; |
1172 | 1175 |
1173 // Push a slot for the receiver to be constructed. | 1176 // Push a slot for the receiver to be constructed. |
1174 __ LoadImmP(r0, Operand::Zero()); | 1177 __ LoadImmP(r0, Operand::Zero()); |
1175 __ push(r0); | 1178 __ push(r0); |
1176 | 1179 |
1177 // Push the arguments (skip if none). | 1180 // Push the arguments (skip if none). |
1178 Label skip; | 1181 Label skip; |
1179 __ CmpP(r2, Operand::Zero()); | 1182 __ CmpP(r2, Operand::Zero()); |
1180 __ beq(&skip); | 1183 __ beq(&skip); |
1181 Generate_InterpreterPushArgs(masm, r2, r6, r2, r7, &stack_overflow); | 1184 Generate_StackOverflowCheck(masm, r2, ip, &stack_overflow); |
| 1185 Generate_InterpreterPushArgs(masm, r2, r6, r2, r7); |
1182 __ bind(&skip); | 1186 __ bind(&skip); |
1183 | 1187 |
1184 __ AssertUndefinedOrAllocationSite(r4, r7); | 1188 __ AssertUndefinedOrAllocationSite(r4, r7); |
1185 if (mode == InterpreterPushArgsMode::kJSFunction) { | 1189 if (mode == InterpreterPushArgsMode::kJSFunction) { |
1186 __ AssertFunction(r3); | 1190 __ AssertFunction(r3); |
1187 | 1191 |
1188 // Tail call to the function-specific construct stub (still in the caller | 1192 // Tail call to the function-specific construct stub (still in the caller |
1189 // context at this point). | 1193 // context at this point). |
1190 __ LoadP(r6, FieldMemOperand(r3, JSFunction::kSharedFunctionInfoOffset)); | 1194 __ LoadP(r6, FieldMemOperand(r3, JSFunction::kSharedFunctionInfoOffset)); |
1191 __ LoadP(r6, FieldMemOperand(r6, SharedFunctionInfo::kConstructStubOffset)); | 1195 __ LoadP(r6, FieldMemOperand(r6, SharedFunctionInfo::kConstructStubOffset)); |
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1214 void Builtins::Generate_InterpreterPushArgsThenConstructArray( | 1218 void Builtins::Generate_InterpreterPushArgsThenConstructArray( |
1215 MacroAssembler* masm) { | 1219 MacroAssembler* masm) { |
1216 // ----------- S t a t e ------------- | 1220 // ----------- S t a t e ------------- |
1217 // -- r2 : argument count (not including receiver) | 1221 // -- r2 : argument count (not including receiver) |
1218 // -- r3 : target to call verified to be Array function | 1222 // -- r3 : target to call verified to be Array function |
1219 // -- r4 : allocation site feedback if available, undefined otherwise. | 1223 // -- r4 : allocation site feedback if available, undefined otherwise. |
1220 // -- r5 : address of the first argument | 1224 // -- r5 : address of the first argument |
1221 // ----------------------------------- | 1225 // ----------------------------------- |
1222 Label stack_overflow; | 1226 Label stack_overflow; |
1223 | 1227 |
1224 __ AddP(r6, r2, Operand(1)); // Add one for receiver. | 1228 // Push a slot for the receiver to be constructed. |
| 1229 __ LoadImmP(r0, Operand::Zero()); |
| 1230 __ push(r0); |
| 1231 |
| 1232 Generate_StackOverflowCheck(masm, r2, ip, &stack_overflow); |
1225 | 1233 |
1226 // Push the arguments. r6, r8, r3 will be modified. | 1234 // Push the arguments. r6, r8, r3 will be modified. |
1227 Generate_InterpreterPushArgs(masm, r6, r5, r6, r7, &stack_overflow); | 1235 Generate_InterpreterPushArgs(masm, r6, r5, r2, r7); |
1228 | 1236 |
1229 // Array constructor expects constructor in r5. It is same as r3 here. | 1237 // Array constructor expects constructor in r5. It is same as r3 here. |
1230 __ LoadRR(r5, r3); | 1238 __ LoadRR(r5, r3); |
1231 | 1239 |
1232 ArrayConstructorStub stub(masm->isolate()); | 1240 ArrayConstructorStub stub(masm->isolate()); |
1233 __ TailCallStub(&stub); | 1241 __ TailCallStub(&stub); |
1234 | 1242 |
1235 __ bind(&stack_overflow); | 1243 __ bind(&stack_overflow); |
1236 { | 1244 { |
1237 __ TailCallRuntime(Runtime::kThrowStackOverflow); | 1245 __ TailCallRuntime(Runtime::kThrowStackOverflow); |
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3092 // Now jump to the instructions of the returned code object. | 3100 // Now jump to the instructions of the returned code object. |
3093 __ Jump(ip); | 3101 __ Jump(ip); |
3094 } | 3102 } |
3095 | 3103 |
3096 #undef __ | 3104 #undef __ |
3097 | 3105 |
3098 } // namespace internal | 3106 } // namespace internal |
3099 } // namespace v8 | 3107 } // namespace v8 |
3100 | 3108 |
3101 #endif // V8_TARGET_ARCH_S390 | 3109 #endif // V8_TARGET_ARCH_S390 |
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