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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 #include <limits.h> // For LONG_MIN, LONG_MAX. | 5 #include <limits.h> // For LONG_MIN, LONG_MAX. |
| 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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| 3080 | 3080 |
| 3081 void MacroAssembler::J(Label* L, BranchDelaySlot bdslot) { | 3081 void MacroAssembler::J(Label* L, BranchDelaySlot bdslot) { |
| 3082 BlockTrampolinePoolScope block_trampoline_pool(this); | 3082 BlockTrampolinePoolScope block_trampoline_pool(this); |
| 3083 | 3083 |
| 3084 uint32_t imm28; | 3084 uint32_t imm28; |
| 3085 imm28 = jump_address(L); | 3085 imm28 = jump_address(L); |
| 3086 imm28 &= kImm28Mask; | 3086 imm28 &= kImm28Mask; |
| 3087 { BlockGrowBufferScope block_buf_growth(this); | 3087 { BlockGrowBufferScope block_buf_growth(this); |
| 3088 // Buffer growth (and relocation) must be blocked for internal references | 3088 // Buffer growth (and relocation) must be blocked for internal references |
| 3089 // until associated instructions are emitted and available to be patched. | 3089 // until associated instructions are emitted and available to be patched. |
| 3090 RecordRelocInfo(RelocInfo::INTERNAL_REFERENCE); | 3090 RecordRelocInfo(RelocInfo::INTERNAL_REFERENCE_ENCODED); |
| 3091 j(imm28); | 3091 j(imm28); |
| 3092 } | 3092 } |
| 3093 // Emit a nop in the branch delay slot if required. | 3093 // Emit a nop in the branch delay slot if required. |
| 3094 if (bdslot == PROTECT) | 3094 if (bdslot == PROTECT) |
| 3095 nop(); | 3095 nop(); |
| 3096 } | 3096 } |
| 3097 | 3097 |
| 3098 | 3098 |
| 3099 void MacroAssembler::Jr(Label* L, BranchDelaySlot bdslot) { | 3099 void MacroAssembler::Jr(Label* L, BranchDelaySlot bdslot) { |
| 3100 BlockTrampolinePoolScope block_trampoline_pool(this); | 3100 BlockTrampolinePoolScope block_trampoline_pool(this); |
| 3101 | 3101 |
| 3102 uint32_t imm32; | 3102 uint32_t imm32; |
| 3103 imm32 = jump_address(L); | 3103 imm32 = jump_address(L); |
| 3104 { BlockGrowBufferScope block_buf_growth(this); | 3104 { BlockGrowBufferScope block_buf_growth(this); |
| 3105 // Buffer growth (and relocation) must be blocked for internal references | 3105 // Buffer growth (and relocation) must be blocked for internal references |
| 3106 // until associated instructions are emitted and available to be patched. | 3106 // until associated instructions are emitted and available to be patched. |
| 3107 RecordRelocInfo(RelocInfo::INTERNAL_REFERENCE); | 3107 RecordRelocInfo(RelocInfo::INTERNAL_REFERENCE_ENCODED); |
| 3108 lui(at, (imm32 & kHiMask) >> kLuiShift); | 3108 lui(at, (imm32 & kHiMask) >> kLuiShift); |
| 3109 ori(at, at, (imm32 & kImm16Mask)); | 3109 ori(at, at, (imm32 & kImm16Mask)); |
| 3110 } | 3110 } |
| 3111 jr(at); | 3111 jr(at); |
| 3112 | 3112 |
| 3113 // Emit a nop in the branch delay slot if required. | 3113 // Emit a nop in the branch delay slot if required. |
| 3114 if (bdslot == PROTECT) | 3114 if (bdslot == PROTECT) |
| 3115 nop(); | 3115 nop(); |
| 3116 } | 3116 } |
| 3117 | 3117 |
| 3118 | 3118 |
| 3119 void MacroAssembler::Jalr(Label* L, BranchDelaySlot bdslot) { | 3119 void MacroAssembler::Jalr(Label* L, BranchDelaySlot bdslot) { |
| 3120 BlockTrampolinePoolScope block_trampoline_pool(this); | 3120 BlockTrampolinePoolScope block_trampoline_pool(this); |
| 3121 | 3121 |
| 3122 uint32_t imm32; | 3122 uint32_t imm32; |
| 3123 imm32 = jump_address(L); | 3123 imm32 = jump_address(L); |
| 3124 { BlockGrowBufferScope block_buf_growth(this); | 3124 { BlockGrowBufferScope block_buf_growth(this); |
| 3125 // Buffer growth (and relocation) must be blocked for internal references | 3125 // Buffer growth (and relocation) must be blocked for internal references |
| 3126 // until associated instructions are emitted and available to be patched. | 3126 // until associated instructions are emitted and available to be patched. |
| 3127 RecordRelocInfo(RelocInfo::INTERNAL_REFERENCE); | 3127 RecordRelocInfo(RelocInfo::INTERNAL_REFERENCE_ENCODED); |
| 3128 lui(at, (imm32 & kHiMask) >> kLuiShift); | 3128 lui(at, (imm32 & kHiMask) >> kLuiShift); |
| 3129 ori(at, at, (imm32 & kImm16Mask)); | 3129 ori(at, at, (imm32 & kImm16Mask)); |
| 3130 } | 3130 } |
| 3131 jalr(at); | 3131 jalr(at); |
| 3132 | 3132 |
| 3133 // Emit a nop in the branch delay slot if required. | 3133 // Emit a nop in the branch delay slot if required. |
| 3134 if (bdslot == PROTECT) | 3134 if (bdslot == PROTECT) |
| 3135 nop(); | 3135 nop(); |
| 3136 } | 3136 } |
| 3137 | 3137 |
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| 6157 } | 6157 } |
| 6158 if (mag.shift > 0) sra(result, result, mag.shift); | 6158 if (mag.shift > 0) sra(result, result, mag.shift); |
| 6159 srl(at, dividend, 31); | 6159 srl(at, dividend, 31); |
| 6160 Addu(result, result, Operand(at)); | 6160 Addu(result, result, Operand(at)); |
| 6161 } | 6161 } |
| 6162 | 6162 |
| 6163 | 6163 |
| 6164 } } // namespace v8::internal | 6164 } } // namespace v8::internal |
| 6165 | 6165 |
| 6166 #endif // V8_TARGET_ARCH_MIPS | 6166 #endif // V8_TARGET_ARCH_MIPS |
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