From: tecodev <tecodev@4a8a32a2-be11-0410-ad9d-d568d2c75423>
Date: Sun, 23 Jan 2005 19:14:19 +0000 (+0000)
Subject: * src/SDCCopt.c (killDeadCode): restored original behaviour
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=6f28b22e862a0cc4910fdb75d4eed1f89a3cc60a;p=fw%2Fsdcc

* src/SDCCopt.c (killDeadCode): restored original behaviour
  (volatile operands might get thrown away though)


git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3652 4a8a32a2-be11-0410-ad9d-d568d2c75423
---

diff --git a/ChangeLog b/ChangeLog
index df79fc72..a8f0d5b3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -7,6 +7,8 @@
 	* src/pic16/main.c (_process_pragma): fixed nasty malloc bug
 	  (used sizeof(set *sectSyms) instead of sizeof(struct sectSym)),
 	  this might fix SIGSEGVs on MinGW...
+	* src/SDCCopt.c (killDeadCode): restored original behaviour
+	  (volatile operands might get thrown away though)
 
 2005-01-23 Vangelis Rokas <vrokas AT otenet.gr>
 
diff --git a/src/SDCCopt.c b/src/SDCCopt.c
index af7d6b6d..f7e67ce6 100644
--- a/src/SDCCopt.c
+++ b/src/SDCCopt.c
@@ -879,14 +879,6 @@ killDeadCode (eBBlock ** ebbs, int count)
 	      if (IC_RESULT (ic) && isOperandVolatile (IC_RESULT (ic), FALSE))
 		continue;
 
-	      /* We also cannot remove the iCode, when an operand is volatile.       */
-	      /* Even read access can cause side effects on some hardware registers! */
-
-	      /* if the left operand is volatile then continue */
-	      if (IC_LEFT(ic) && isOperandVolatile (IC_LEFT (ic), TRUE))
-		continue;
-
-
 	      /* if the result is a temp & isaddr then skip */
 	      if (IC_RESULT (ic) && POINTER_SET (ic))
 		continue;