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Issue 1229863004: MIPS: Fix BlockTrampolinePoolFor() to emit trampoline before blocking, if needed. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 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 // 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 2969 matching lines...) Expand 10 before | Expand all | Expand 10 after
2980 const int kNumCases = 512; 2980 const int kNumCases = 512;
2981 int values[kNumCases]; 2981 int values[kNumCases];
2982 isolate->random_number_generator()->NextBytes(values, sizeof(values)); 2982 isolate->random_number_generator()->NextBytes(values, sizeof(values));
2983 Label labels[kNumCases]; 2983 Label labels[kNumCases];
2984 2984
2985 __ addiu(sp, sp, -4); 2985 __ addiu(sp, sp, -4);
2986 __ sw(ra, MemOperand(sp)); 2986 __ sw(ra, MemOperand(sp));
2987 2987
2988 Label done; 2988 Label done;
2989 { 2989 {
2990 __ BlockTrampolinePoolFor(kNumCases + 7);
2990 PredictableCodeSizeScope predictable( 2991 PredictableCodeSizeScope predictable(
2991 &assm, (kNumCases + 7) * Assembler::kInstrSize); 2992 &assm, (kNumCases + 7) * Assembler::kInstrSize);
2992 Label here; 2993 Label here;
2993 2994
2994 __ bal(&here); 2995 __ bal(&here);
2995 __ nop(); 2996 __ nop();
2996 __ bind(&here); 2997 __ bind(&here);
2997 __ sll(at, a0, 2); 2998 __ sll(at, a0, 2);
2998 __ addu(at, at, ra); 2999 __ addu(at, at, ra);
2999 __ lw(at, MemOperand(at, 5 * Assembler::kInstrSize)); 3000 __ lw(at, MemOperand(at, 5 * Assembler::kInstrSize));
(...skipping 56 matching lines...) Expand 10 before | Expand all | Expand 10 after
3056 for (int i = 0; i < kNumCases; ++i) { 3057 for (int i = 0; i < kNumCases; ++i) {
3057 __ bind(&labels[i]); 3058 __ bind(&labels[i]);
3058 __ lui(v0, (values[i] >> 16) & 0xffff); 3059 __ lui(v0, (values[i] >> 16) & 0xffff);
3059 __ ori(v0, v0, values[i] & 0xffff); 3060 __ ori(v0, v0, values[i] & 0xffff);
3060 __ b(&done); 3061 __ b(&done);
3061 __ nop(); 3062 __ nop();
3062 } 3063 }
3063 3064
3064 __ bind(&dispatch); 3065 __ bind(&dispatch);
3065 { 3066 {
3067 __ BlockTrampolinePoolFor(kNumCases + 7);
3066 PredictableCodeSizeScope predictable( 3068 PredictableCodeSizeScope predictable(
3067 &assm, (kNumCases + 7) * Assembler::kInstrSize); 3069 &assm, (kNumCases + 7) * Assembler::kInstrSize);
3068 Label here; 3070 Label here;
3069 3071
3070 __ bal(&here); 3072 __ bal(&here);
3071 __ nop(); 3073 __ nop();
3072 __ bind(&here); 3074 __ bind(&here);
3073 __ sll(at, a0, 2); 3075 __ sll(at, a0, 2);
3074 __ addu(at, at, ra); 3076 __ addu(at, at, ra);
3075 __ lw(at, MemOperand(at, 5 * Assembler::kInstrSize)); 3077 __ lw(at, MemOperand(at, 5 * Assembler::kInstrSize));
(...skipping 55 matching lines...) Expand 10 before | Expand all | Expand 10 after
3131 obj = *values[i]; 3133 obj = *values[i];
3132 imm32 = reinterpret_cast<intptr_t>(obj); 3134 imm32 = reinterpret_cast<intptr_t>(obj);
3133 __ lui(v0, (imm32 >> 16) & 0xffff); 3135 __ lui(v0, (imm32 >> 16) & 0xffff);
3134 __ ori(v0, v0, imm32 & 0xffff); 3136 __ ori(v0, v0, imm32 & 0xffff);
3135 __ b(&done); 3137 __ b(&done);
3136 __ nop(); 3138 __ nop();
3137 } 3139 }
3138 3140
3139 __ bind(&dispatch); 3141 __ bind(&dispatch);
3140 { 3142 {
3143 __ BlockTrampolinePoolFor(kNumCases + 7);
3141 PredictableCodeSizeScope predictable( 3144 PredictableCodeSizeScope predictable(
3142 &assm, (kNumCases + 7) * Assembler::kInstrSize); 3145 &assm, (kNumCases + 7) * Assembler::kInstrSize);
3143 Label here; 3146 Label here;
3144 3147
3145 __ bal(&here); 3148 __ bal(&here);
3146 __ nop(); 3149 __ nop();
3147 __ bind(&here); 3150 __ bind(&here);
3148 __ sll(at, a0, 2); 3151 __ sll(at, a0, 2);
3149 __ addu(at, at, ra); 3152 __ addu(at, at, ra);
3150 __ lw(at, MemOperand(at, 5 * Assembler::kInstrSize)); 3153 __ lw(at, MemOperand(at, 5 * Assembler::kInstrSize));
(...skipping 1899 matching lines...) Expand 10 before | Expand all | Expand 10 after
5050 size_t nr_test_cases = sizeof(tc) / sizeof(TestCaseBalc); 5053 size_t nr_test_cases = sizeof(tc) / sizeof(TestCaseBalc);
5051 for (size_t i = 0; i < nr_test_cases; ++i) { 5054 for (size_t i = 0; i < nr_test_cases; ++i) {
5052 int32_t res = run_balc(tc[i].offset); 5055 int32_t res = run_balc(tc[i].offset);
5053 CHECK_EQ(tc[i].expected_res, res); 5056 CHECK_EQ(tc[i].expected_res, res);
5054 } 5057 }
5055 } 5058 }
5056 } 5059 }
5057 5060
5058 5061
5059 #undef __ 5062 #undef __
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