From: Victor van den Elzen <victor.vde@gmail.com>
Date: Mon, 23 Feb 2009 03:35:00 +0000 (+0100)
Subject: BR 2420167: jmp not always optimized
X-Git-Url: https://repo.or.cz/w/nasm/perl-rewrite.git/commitdiff_plain/ccafc3c4b75d8c26c2d57c2a4d39bb49cd76231c

BR 2420167: jmp not always optimized

Begin by assuming short jumps are possible to prevent suboptimal convergence.
---

diff --git a/assemble.c b/assemble.c
index ad7ea706..748e62f7 100644
--- a/assemble.c
+++ b/assemble.c
@@ -262,6 +262,11 @@ static bool jmp_match(int32_t segment, int64_t offset, int bits,
 	return false;
 
     isize = calcsize(segment, offset, bits, ins, code);
+
+    if (ins->oprs[0].segment == NO_SEG)
+        /* Be optimistic in pass 1 */
+        return true;
+
     if (ins->oprs[0].segment != segment)
         return false;