From 2a44ffe51bf56f86ad3043e9f578e268b860e4dc Mon Sep 17 00:00:00 2001
From: "J. Gareth \"Curious Kit\" Moreton" <gareth@moreton-family.com>
Date: Thu, 24 Nov 2022 21:30:03 +0000
Subject: [PATCH]   * x86: BZHI optimisation now sets the subtract and shift
 nodes to 'do not execute' as they are skipped over.

---
 compiler/x86/nx86add.pas | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/compiler/x86/nx86add.pas b/compiler/x86/nx86add.pas
index 364be7c00f..de1a22c929 100644
--- a/compiler/x86/nx86add.pas
+++ b/compiler/x86/nx86add.pas
@@ -2051,6 +2051,8 @@ unit nx86add;
                    secondpass(left);
 
                    { Skip the subtract and shift nodes completely }
+                   Include(right.flags, nf_do_not_execute);
+                   Include(taddnode(right).left.flags, nf_do_not_execute);
 
                    { Helps avoid all the awkward typecasts }
                    indexnode := tshlshrnode(taddnode(right).left).right;