From 1128dbc444005bd5bbffb9bee7722b2ee07dfb44 Mon Sep 17 00:00:00 2001
From: Andy Wingo <wingo@pobox.com>
Date: Mon, 27 May 2019 19:22:23 +0200
Subject: [PATCH] Remove check for instrument-entry

* libguile/jit.c (emit_indirect_tail_call): If everything starts with
  instrument-entry, and thus has a vcode pointer, no need to emit a
  dynamic check.
---
 libguile/jit.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/libguile/jit.c b/libguile/jit.c
index d8e892b90..a7cd5d9e4 100644
--- a/libguile/jit.c
+++ b/libguile/jit.c
@@ -797,13 +797,6 @@ static void
 emit_indirect_tail_call (scm_jit_state *j)
 {
   emit_get_callee_vcode (j, T0);
-
-  /* FIXME: If all functions start with instrument-entry, no need for
-     this check.  */
-  emit_get_vcode_low_byte (j, T1, T0);
-  jit_reloc_t instrumented = jit_beqi (j->jit, T1, scm_op_instrument_entry);
-  jit_breakpoint (j->jit);
-  jit_patch_here (j->jit, instrumented);
   emit_get_ip_relative_addr (j, T1, T0, 1);
   emit_ldxi (j, T1, T1, 0);
   jit_reloc_t no_mcode = jit_beqi (j->jit, T1, 0);