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

2013-09-08 02:53:23 +02:00
parent d3d30d389b
commit d1194a82eb
12 changed files with 151 additions and 12 deletions
--- a/src/lj_asm_x86.h
+++ b/src/lj_asm_x86.h
@@ -2348,6 +2348,16 @@ static void asm_hiop(ASMState *as, IRIns *ir)
 #endif
 }

+/* -- Profiling ----------------------------------------------------------- */
+
+static void asm_prof(ASMState *as, IRIns *ir)
+{
+  UNUSED(ir);
+  asm_guardcc(as, CC_NE);
+  emit_i8(as, HOOK_PROFILE);
+  emit_rma(as, XO_GROUP3b, XOg_TEST, &J2G(as->J)->hookmask);
+}
+
 /* -- Stack handling ------------------------------------------------------ */

 /* Check Lua stack size for overflow. Use exit handler as fallback. */