MIPS64: Assembler support for internal references.

src/mips64/assembler-mips64.h

Index: src/mips64/assembler-mips64.h
diff --git a/src/mips64/assembler-mips64.h b/src/mips64/assembler-mips64.h
index a3664770a3f4771e444c325dd4ec8515e8ecf2c9..5ad98f6cd88135a43c282b42651f79fd184b26ef 100644
--- a/src/mips64/assembler-mips64.h
+++ b/src/mips64/assembler-mips64.h
@@ -37,6 +37,9 @@
 #define V8_MIPS_ASSEMBLER_MIPS_H_
 
 #include <stdio.h>
+
+#include <set>
+
 #include "src/assembler.h"
 #include "src/mips64/constants-mips64.h"
 #include "src/serialize.h"
@@ -1059,12 +1062,14 @@ class Assembler : public AssemblerBase {
   // Use --trace-deopt to enable.
   void RecordDeoptReason(const int reason, const int raw_position);
 
-  static int RelocateInternalReference(byte* pc, intptr_t pc_delta);
+  static int RelocateInternalReference(RelocInfo::Mode rmode, byte* pc,
+                                       intptr_t pc_delta);
 
   // Writes a single byte or word of data in the code stream.  Used for
   // inline tables, e.g., jump-tables.
   void db(uint8_t data);
   void dd(uint32_t data);
+  void dd(Label* label);
 
   // Emits the address of the code stub's first instruction.
   void emit_code_stub_address(Code* stub);
@@ -1163,10 +1168,10 @@ class Assembler : public AssemblerBase {
   int64_t buffer_space() const { return reloc_info_writer.pos() - pc_; }
 
   // Decode branch instruction at pos and return branch target pos.
-  int64_t target_at(int64_t pos);
+  int64_t target_at(int64_t pos, bool is_internal);
 
   // Patch branch instruction at pos to branch to given branch target pos.
-  void target_at_put(int64_t pos, int64_t target_pos);
+  void target_at_put(int64_t pos, int64_t target_pos, bool is_internal);
 
   // Say if we need to relocate with this mode.
   bool MustUseReg(RelocInfo::Mode rmode);
@@ -1336,7 +1341,7 @@ class Assembler : public AssemblerBase {
   // Labels.
   void print(Label* L);
   void bind_to(Label* L, int pos);
-  void next(Label* L);
+  void next(Label* L, bool is_internal);
 
   // One trampoline consists of:
   // - space for trampoline slots,
@@ -1401,6 +1406,10 @@ class Assembler : public AssemblerBase {
   static const int kMaxBranchOffset = (1 << (18 - 1)) - 1;
   static const int kInvalidSlotPos = -1;
 
+  // Internal reference positions, required for unbounded internal reference
+  // labels.
+  std::set<int64_t> internal_reference_positions_;
+
   Trampoline trampoline_;
   bool internal_trampoline_exception_;