1 files changed, 8 insertions, 0 deletions
diff --git a/vm_exec.c b/vm_exec.c
index ce2e053ee7..7aa56f6ad6 100644
--- a/vm_exec.c
+++ b/vm_exec.c
@@ -57,6 +57,9 @@ static void vm_insns_counter_count_insn(int insn) {}
 #elif defined(__GNUC__) && defined(__powerpc64__)
 #define DECL_SC_REG(type, r, reg) register type reg_##r __asm__("r" reg)
 
+#elif defined(__GNUC__) && defined(__aarch64__)
+#define DECL_SC_REG(type, r, reg) register type reg_##r __asm__("x" reg)
+
 #else
 #define DECL_SC_REG(type, r, reg) register type reg_##r
 #endif
@@ -93,6 +96,11 @@ vm_exec_core(rb_execution_context_t *ec, VALUE initial)
     DECL_SC_REG(rb_control_frame_t *, cfp, "15");
 #define USE_MACHINE_REGS 1
 
+#elif defined(__GNUC__) && defined(__aarch64__)
+    DECL_SC_REG(const VALUE *, pc, "19");
+    DECL_SC_REG(rb_control_frame_t *, cfp, "20");
+#define USE_MACHINE_REGS 1
+
 #else
     register rb_control_frame_t *reg_cfp;
     const VALUE *reg_pc;