Add LJ_GC64 mode: 64 bit GC object references.

Actually NaN tagging with 47 bit pointers and 13+4 bit tags.

1 files changed, 12 insertions, 1 deletions

diff --git a/src/lj_arch.h b/src/lj_arch.h
index 8f3796fc..18555b41 100644
--- a/src/lj_arch.h
+++ b/src/lj_arch.h
@@ -365,11 +365,22 @@
 #endif
 #endif
 
+/* 64 bit GC references. */
+#if LJ_TARGET_GC64
+#define LJ_GC64                 1
+#else
+#define LJ_GC64                 0
+#endif
+
 /* 2-slot frame info. */
+#if LJ_GC64
+#define LJ_FR2                  1
+#else
 #define LJ_FR2                  0
+#endif
 
 /* Disable or enable the JIT compiler. */
-#if defined(LUAJIT_DISABLE_JIT) || defined(LJ_ARCH_NOJIT) || defined(LJ_OS_NOJIT) || LJ_FR2
+#if defined(LUAJIT_DISABLE_JIT) || defined(LJ_ARCH_NOJIT) || defined(LJ_OS_NOJIT) || LJ_FR2 || LJ_GC64
 #define LJ_HASJIT               0
 #else
 #define LJ_HASJIT               1