[v8-dev] ARM: safepoints frame optimization

src/v8globals.h

Index: src/v8globals.h
diff --git a/src/v8globals.h b/src/v8globals.h
index 7d8d1b7e400794b7105314445d4bde0fad09ab29..d47f48524dd44e66cc239e3208f6271f058bef0f 100644
--- a/src/v8globals.h
+++ b/src/v8globals.h
@@ -219,6 +219,15 @@ enum VisitMode {
 enum NativesFlag { NOT_NATIVES_CODE, NATIVES_CODE };
 
 
+#if V8_TARGET_ARCH_A64
+typedef uint64_t RegList;
+#else
+typedef uint32_t RegList;
+#endif
+const RegList kRegListEmpty = 0;
+const int kRegListSize = sizeof(RegList);       // NOLINT
+
+
 // A CodeDesc describes a buffer holding instructions and relocation
 // information. The instructions start at the beginning of the buffer
 // and grow forward, the relocation information starts at the end of
@@ -239,6 +248,8 @@ struct CodeDesc {
   int instr_size;
   int reloc_size;
   Assembler* origin;
+  RegList registers_mask;
+  RegList double_registers_mask;
 };