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Issue 1806893002: Reland PPC portion of "Detect cache line size on Linux for PPC hosts." (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 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 // 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 "src/arm/codegen-arm.h" 5 #include "src/arm/codegen-arm.h"
6 6
7 #if V8_TARGET_ARCH_ARM 7 #if V8_TARGET_ARCH_ARM
8 8
9 #include "src/arm/simulator-arm.h" 9 #include "src/arm/simulator-arm.h"
10 #include "src/codegen.h" 10 #include "src/codegen.h"
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101 101
102 if (CpuFeatures::IsSupported(NEON)) { 102 if (CpuFeatures::IsSupported(NEON)) {
103 Label loop, less_256, less_128, less_64, less_32, _16_or_less, _8_or_less; 103 Label loop, less_256, less_128, less_64, less_32, _16_or_less, _8_or_less;
104 Label size_less_than_8; 104 Label size_less_than_8;
105 __ pld(MemOperand(src, 0)); 105 __ pld(MemOperand(src, 0));
106 106
107 __ cmp(chars, Operand(8)); 107 __ cmp(chars, Operand(8));
108 __ b(lt, &size_less_than_8); 108 __ b(lt, &size_less_than_8);
109 __ cmp(chars, Operand(32)); 109 __ cmp(chars, Operand(32));
110 __ b(lt, &less_32); 110 __ b(lt, &less_32);
111 if (CpuFeatures::cache_line_size() == 32) { 111 if (CpuFeatures::dcache_line_size() == 32) {
112 __ pld(MemOperand(src, 32)); 112 __ pld(MemOperand(src, 32));
113 } 113 }
114 __ cmp(chars, Operand(64)); 114 __ cmp(chars, Operand(64));
115 __ b(lt, &less_64); 115 __ b(lt, &less_64);
116 __ pld(MemOperand(src, 64)); 116 __ pld(MemOperand(src, 64));
117 if (CpuFeatures::cache_line_size() == 32) { 117 if (CpuFeatures::dcache_line_size() == 32) {
118 __ pld(MemOperand(src, 96)); 118 __ pld(MemOperand(src, 96));
119 } 119 }
120 __ cmp(chars, Operand(128)); 120 __ cmp(chars, Operand(128));
121 __ b(lt, &less_128); 121 __ b(lt, &less_128);
122 __ pld(MemOperand(src, 128)); 122 __ pld(MemOperand(src, 128));
123 if (CpuFeatures::cache_line_size() == 32) { 123 if (CpuFeatures::dcache_line_size() == 32) {
124 __ pld(MemOperand(src, 160)); 124 __ pld(MemOperand(src, 160));
125 } 125 }
126 __ pld(MemOperand(src, 192)); 126 __ pld(MemOperand(src, 192));
127 if (CpuFeatures::cache_line_size() == 32) { 127 if (CpuFeatures::dcache_line_size() == 32) {
128 __ pld(MemOperand(src, 224)); 128 __ pld(MemOperand(src, 224));
129 } 129 }
130 __ cmp(chars, Operand(256)); 130 __ cmp(chars, Operand(256));
131 __ b(lt, &less_256); 131 __ b(lt, &less_256);
132 __ sub(chars, chars, Operand(256)); 132 __ sub(chars, chars, Operand(256));
133 133
134 __ bind(&loop); 134 __ bind(&loop);
135 __ pld(MemOperand(src, 256)); 135 __ pld(MemOperand(src, 256));
136 __ vld1(Neon8, NeonListOperand(d0, 4), NeonMemOperand(src, PostIndex)); 136 __ vld1(Neon8, NeonListOperand(d0, 4), NeonMemOperand(src, PostIndex));
137 if (CpuFeatures::cache_line_size() == 32) { 137 if (CpuFeatures::dcache_line_size() == 32) {
138 __ pld(MemOperand(src, 256)); 138 __ pld(MemOperand(src, 256));
139 } 139 }
140 __ vld1(Neon8, NeonListOperand(d4, 4), NeonMemOperand(src, PostIndex)); 140 __ vld1(Neon8, NeonListOperand(d4, 4), NeonMemOperand(src, PostIndex));
141 __ sub(chars, chars, Operand(64), SetCC); 141 __ sub(chars, chars, Operand(64), SetCC);
142 __ vst1(Neon8, NeonListOperand(d0, 4), NeonMemOperand(dest, PostIndex)); 142 __ vst1(Neon8, NeonListOperand(d0, 4), NeonMemOperand(dest, PostIndex));
143 __ vst1(Neon8, NeonListOperand(d4, 4), NeonMemOperand(dest, PostIndex)); 143 __ vst1(Neon8, NeonListOperand(d4, 4), NeonMemOperand(dest, PostIndex));
144 __ b(ge, &loop); 144 __ b(ge, &loop);
145 __ add(chars, chars, Operand(256)); 145 __ add(chars, chars, Operand(256));
146 146
147 __ bind(&less_256); 147 __ bind(&less_256);
(...skipping 799 matching lines...) Expand 10 before | Expand all | Expand 10 after
947 patcher.masm()->ldr(pc, MemOperand(pc, -4)); 947 patcher.masm()->ldr(pc, MemOperand(pc, -4));
948 patcher.masm()->emit_code_stub_address(stub); 948 patcher.masm()->emit_code_stub_address(stub);
949 } 949 }
950 } 950 }
951 951
952 952
953 } // namespace internal 953 } // namespace internal
954 } // namespace v8 954 } // namespace v8
955 955
956 #endif // V8_TARGET_ARCH_ARM 956 #endif // V8_TARGET_ARCH_ARM
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