From e337151a9bc869367032af334ebd479d92dfbdee Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Wed, 23 Aug 2017 12:56:36 +0200
Subject: beam_makeops: Stop using the Arg() macro

Generated code uses 'I' explicitly in other places, so it
can as well use 'I' when accessing the operands for instructions.
---
 erts/emulator/utils/beam_makeops | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

(limited to 'erts/emulator')

diff --git a/erts/emulator/utils/beam_makeops b/erts/emulator/utils/beam_makeops
index c12073d943..6c54ab3421 100755
--- a/erts/emulator/utils/beam_makeops
+++ b/erts/emulator/utils/beam_makeops
@@ -1244,7 +1244,7 @@ sub basic_generator {
                 last SWITCH;
             };
 	    /[lxyS]/ and do {
-                push(@f, $_ . "b(Arg($arg_offset))");
+                push(@f, $_ . "b(" . arg_offset($arg_offset) . ")");
                 last SWITCH;
             };
 	    /n/ and do {
@@ -1261,13 +1261,13 @@ sub basic_generator {
                 last SWITCH;
             };
 	    /d/ and do {
-                $var_decls .= "Eterm dst = Arg($arg_offset);\n" .
+                $var_decls .= "Eterm dst = " . arg_offset($arg_offset) . ";\n" .
                     "Eterm* dst_ptr = REG_TARGET_PTR(dst);\n";
                 push(@f, "*dst_ptr");
                 last SWITCH;
             };
             defined $arg_size{$_} and do {
-                push(@f, "Arg($arg_offset)");
+                push @f, arg_offset($arg_offset);
                 last SWITCH;
             };
 
@@ -1349,6 +1349,11 @@ sub basic_generator {
     ($size+1, $code, $pack_spec);
 }
 
+sub arg_offset {
+    my $offset = shift;
+    "I[" . ($offset+1) . "]";
+}
+
 sub expand_all {
     my($code,$bindings_ref) = @_;
     my %bindings = %{$bindings_ref};
@@ -1595,7 +1600,8 @@ sub do_pack {
                 $did_some_packing = 1;
 
                 if ($ap == 0) {
-                    $pack_prefix .= "Eterm $packed_var = Arg($size);\n";
+                    $pack_prefix .= "Eterm $packed_var = " .
+                        arg_offset($size) . ";\n";
                     $up .= "p";
                     $down = "P$down";
                     $this_size = 1;
-- 
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