From 6d810d71f4f2e2ee0be749a53e328c3719db00f9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Mon, 6 Nov 2017 12:55:07 +0100
Subject: Remove redundant built-in macro $IS_PACKED()

It can easily be implemented as $OPERAND_POSITION($Operand) == 0.
---
 erts/emulator/utils/beam_makeops | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

(limited to 'erts')

diff --git a/erts/emulator/utils/beam_makeops b/erts/emulator/utils/beam_makeops
index 3e1116ef52..d5cb127246 100755
--- a/erts/emulator/utils/beam_makeops
+++ b/erts/emulator/utils/beam_makeops
@@ -308,8 +308,7 @@ if ($wordsize == 64) {
 #
 
 my %predef_macros =
-    (IS_PACKED => ['Expr'],
-     OPERAND_POSITION => ['Expr'],
+    (OPERAND_POSITION => ['Expr'],
      IF => ['Expr','IfTrue','IfFalse'],
      REFRESH_GEN_DEST => [],
     );
@@ -1695,8 +1694,6 @@ sub expand_macro {
         } else {
             $body = 0;
         }
-    } elsif ($name eq 'IS_PACKED') {
-        $body = ($body =~ /^I\[\d+\]$/) ? 0 : 1;
     } elsif ($name eq 'IF') {
         my $expr = $new_bindings{Expr};
         my $bool = eval $expr;
-- 
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