From 11979e848b68c5b93ff18a4c45d97fcd8afe59f4 Mon Sep 17 00:00:00 2001
From: bernhardheld <bernhardheld@4a8a32a2-be11-0410-ad9d-d568d2c75423>
Date: Tue, 23 Aug 2005 20:22:54 +0000
Subject: [PATCH 1/1] * src/SDCCopt.c (convertToFcall): fixed modulus with
 divisors 1 and ffffffffu

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3876 4a8a32a2-be11-0410-ad9d-d568d2c75423
---
 ChangeLog     |  5 +++++
 src/SDCCopt.c | 10 +++++++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 66aedfe7..5bfbaa86 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2005-08-23 Bernhard Held <bernhard AT bernhardheld.de>
+
+	* src/SDCCopt.c (convertToFcall): fixed modulus with divisors 1 and
+	ffffffffu
+
 2005-08-23 Maarten Brock <sourceforge.brock AT dse.nl>
 
 	* as/mcs51/aslink.h: completed lkrloc.c prototypes
diff --git a/src/SDCCopt.c b/src/SDCCopt.c
index 24376b29..bf6d4cbe 100644
--- a/src/SDCCopt.c
+++ b/src/SDCCopt.c
@@ -802,8 +802,16 @@ convertToFcall (eBBlock ** ebbs, int count)
           if (ic->op == '%' && isOperandLiteral(IC_RIGHT(ic)) &&
               IS_UNSIGNED(operandType(IC_LEFT(ic))))
             {
-              unsigned litVal = abs((int)operandLitValue(IC_RIGHT(ic)));
+              unsigned litVal = fabs(operandLitValue(IC_RIGHT(ic)));
 
+              /* modulo by 1: no remainder */
+              if (litVal == 1)
+                {
+                  ic->op = '=';
+                  IC_RIGHT (ic) = operandFromLit(0);
+                  IC_LEFT (ic) = NULL;
+                  continue;
+                }
               // See if literal value is a power of 2.
               while (litVal && !(litVal & 1))
                 {
-- 
2.30.2