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Unified Diff: runtime/vm/instructions_mips.h

Issue 928833003: Add Function based profile tree (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 5 years, 10 months ago
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Index: runtime/vm/instructions_mips.h
diff --git a/runtime/vm/instructions_mips.h b/runtime/vm/instructions_mips.h
index b4864b74665617ed7d95dd59231f689acfbb73e8..d19d9be9901959e48447ff44906477d387cb8c81 100644
--- a/runtime/vm/instructions_mips.h
+++ b/runtime/vm/instructions_mips.h
@@ -99,6 +99,24 @@ class JumpPattern : public ValueObject {
DISALLOW_COPY_AND_ASSIGN(JumpPattern);
};
+
+class ReturnPattern : public ValueObject {
+ public:
+ ReturnPattern(uword pc);
+
+ // jr(RA) = 1
+ static const int kLengthInBytes = 1*Instr::kInstrSize;
+
+ int pattern_length_in_bytes() const {
+ return kLengthInBytes;
+ }
+
+ bool IsValid() const;
+
+ private:
+ const uword pc_;
+};
+
} // namespace dart
#endif // VM_INSTRUCTIONS_MIPS_H_
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