From: David Given <dg@cowlark.com>
Date: Sat, 21 Jan 2017 22:21:33 +0000 (+0100)
Subject: Loading longs might corrupt the input register (if the output register pair
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=b9757724559803181a7eca3c92f177a9110b1df4;p=ack.git

Loading longs might corrupt the input register (if the output register pair
aliases it).
---

diff --git a/mach/powerpc/mcg/table b/mach/powerpc/mcg/table
index 496101238..340652cd4 100644
--- a/mach/powerpc/mcg/table
+++ b/mach/powerpc/mcg/table
@@ -307,6 +307,7 @@ PATTERNS
 		cost 4;
 
     out:(long)reg = LOAD.L(addr:address)
+        with corrupted(%addr)
         emit "lwz %out.0, 4+%addr"
         emit "lwz %out.1, 0+%addr"
         cost 8;