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Issue 1227963004: Trace typed data allocations (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: Created 5 years, 5 months ago
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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_ARM. 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_ARM.
6 #if defined(TARGET_ARCH_ARM) 6 #if defined(TARGET_ARCH_ARM)
7 7
8 #include "vm/intrinsifier.h" 8 #include "vm/intrinsifier.h"
9 9
10 #include "vm/assembler.h" 10 #include "vm/assembler.h"
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182 const int32_t raw_null = reinterpret_cast<int32_t>(Object::null()); 182 const int32_t raw_null = reinterpret_cast<int32_t>(Object::null());
183 __ LoadImmediate(R0, raw_null); 183 __ LoadImmediate(R0, raw_null);
184 __ Ret(); 184 __ Ret();
185 __ Bind(&fall_through); 185 __ Bind(&fall_through);
186 } 186 }
187 187
188 188
189 #define TYPED_ARRAY_ALLOCATION(type_name, cid, max_len, scale_shift) \ 189 #define TYPED_ARRAY_ALLOCATION(type_name, cid, max_len, scale_shift) \
190 Label fall_through; \ 190 Label fall_through; \
191 const intptr_t kArrayLengthStackOffset = 0 * kWordSize; \ 191 const intptr_t kArrayLengthStackOffset = 0 * kWordSize; \
192 __ MaybeTraceAllocation(cid, R2, &fall_through); \
192 __ ldr(R2, Address(SP, kArrayLengthStackOffset)); /* Array length. */ \ 193 __ ldr(R2, Address(SP, kArrayLengthStackOffset)); /* Array length. */ \
193 /* Check that length is a positive Smi. */ \ 194 /* Check that length is a positive Smi. */ \
194 /* R2: requested array length argument. */ \ 195 /* R2: requested array length argument. */ \
195 __ tst(R2, Operand(kSmiTagMask)); \ 196 __ tst(R2, Operand(kSmiTagMask)); \
196 __ b(&fall_through, NE); \ 197 __ b(&fall_through, NE); \
197 __ CompareImmediate(R2, 0); \ 198 __ CompareImmediate(R2, 0); \
198 __ b(&fall_through, LT); \ 199 __ b(&fall_through, LT); \
199 __ SmiUntag(R2); \ 200 __ SmiUntag(R2); \
200 /* Check for maximum allowed length. */ \ 201 /* Check for maximum allowed length. */ \
201 /* R2: untagged array length. */ \ 202 /* R2: untagged array length. */ \
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2060 Isolate* isolate = Isolate::Current(); 2061 Isolate* isolate = Isolate::Current();
2061 __ LoadImmediate(R1, reinterpret_cast<uword>(isolate)); 2062 __ LoadImmediate(R1, reinterpret_cast<uword>(isolate));
2062 // Set return value to Isolate::current_tag_. 2063 // Set return value to Isolate::current_tag_.
2063 __ ldr(R0, Address(R1, Isolate::current_tag_offset())); 2064 __ ldr(R0, Address(R1, Isolate::current_tag_offset()));
2064 __ Ret(); 2065 __ Ret();
2065 } 2066 }
2066 2067
2067 } // namespace dart 2068 } // namespace dart
2068 2069
2069 #endif // defined TARGET_ARCH_ARM 2070 #endif // defined TARGET_ARCH_ARM
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