Low-overhead profiler, part 4: JIT compiler support.

1 files changed, 11 insertions, 0 deletions

diff --git a/src/lj_asm_mips.h b/src/lj_asm_mips.h
index 74eff10b..365538bb 100644
--- a/src/lj_asm_mips.h
+++ b/src/lj_asm_mips.h
@@ -1562,6 +1562,17 @@ static void asm_hiop(ASMState *as, IRIns *ir)
 #endif
 }
 
+/* -- Profiling ----------------------------------------------------------- */
+
+static void asm_prof(ASMState *as, IRIns *ir)
+{
+  UNUSED(ir);
+  asm_guard(as, MIPSI_BNE, RID_TMP, RID_ZERO);
+  emit_tsi(as, MIPSI_ANDI, RID_TMP, RID_TMP, HOOK_PROFILE);
+  emit_lsglptr(as, MIPSI_LBU, RID_TMP,
+               (int32_t)offsetof(global_State, hookmask));
+}
+
 /* -- Stack handling ------------------------------------------------------ */
 
 /* Check Lua stack size for overflow. Use exit handler as fallback. */