# HG changeset patch
# User thomask
# Date 1175371894 0
# Node ID 724d76f90c83406e70a721c8ce38d1a2a02be09e
# Parent  b4b14259c7873a3e7ac8fd22a4947fe985a7c323
[Issue 1081] with using real and -O option, dmd generate bug code

<s180m@yahoo.co.jp>
2007-03-27
http://d.puremagic.com/issues/show_bug.cgi?id=1081

diff -r b4b14259c787 -r 724d76f90c83 run/o/odd_bug_14_A.d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/run/o/odd_bug_14_A.d	Sat Mar 31 20:11:34 2007 +0000
@@ -0,0 +1,55 @@
+// $HeadURL$
+// $Date$
+// $Author$
+
+// @author@	<s180m@yahoo.co.jp>
+// @date@	2007-03-27
+// @uri@	http://d.puremagic.com/issues/show_bug.cgi?id=1081
+// @desc@	[Issue 1081] with using real and -O option, dmd generate bug code
+
+module dstress.run.o.odd_bug_14_A;
+
+const real PI =	0x1.921fb54442d1846ap+1;
+
+extern(C) double sin(double);
+extern(C) double round(double);
+
+int[] s_table;
+
+static this(){
+	s_table = new int[2<<16];
+
+	real t = 0.0;
+
+	for(int i=0; i< (2<<16); ++i){
+		t += 1.0 / 65536.0;
+		s_table[i] = cast(int) round( 65536.0 * sin(PI*t) * sin(PI/2.0*t) / ((PI*PI/2.0)*t*t) );
+	}
+	s_table[0] = 1<<16;
+}
+
+int foo(int a) {
+	if((a <= -2<<16) || (a >= 2<<16)){
+		return 0;
+	}
+
+	if(a<0){
+		a = -a;
+	}
+
+	return s_table[a];
+}
+
+int main(){
+	int d;
+
+	for(int i = -0x1abcd; i < 0x20000; i += 0x10000){
+		d += foo(i);
+	}
+
+	if(0==d){
+		assert(0);
+	}
+
+	return 0;
+}
diff -r b4b14259c787 -r 724d76f90c83 run/o/odd_bug_14_B.d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/run/o/odd_bug_14_B.d	Sat Mar 31 20:11:34 2007 +0000
@@ -0,0 +1,55 @@
+// $HeadURL$
+// $Date$
+// $Author$
+
+// @author@	<s180m@yahoo.co.jp>
+// @date@	2007-03-27
+// @uri@	http://d.puremagic.com/issues/show_bug.cgi?id=1081
+// @desc@	[Issue 1081] with using real and -O option, dmd generate bug code
+
+module dstress.run.o.odd_bug_14_B;
+
+const real PI =	0x1.921fb54442d1846ap+1;
+
+extern(C) double sin(double);
+extern(C) double round(double);
+
+int[] s_table;
+
+static this(){
+	s_table = new int[2<<16];
+
+	double t = 0.0;
+
+	for(int i=0; i< (2<<16); ++i){
+		t += 1.0 / 65536.0;
+		s_table[i] = cast(int) round( 65536.0 * sin(PI*t) * sin(PI/2.0*t) / ((PI*PI/2.0)*t*t) );
+	}
+	s_table[0] = 1<<16;
+}
+
+int foo(int a) {
+	if((a <= -2<<16) || (a >= 2<<16)){
+		return 0;
+	}
+
+	if(a<0){
+		a = -a;
+	}
+
+	return s_table[a];
+}
+
+int main(){
+	int d;
+
+	for(int i = -0x1abcd; i < 0x20000; i += 0x10000){
+		d += foo(i);
+	}
+
+	if(0==d){
+		assert(0);
+	}
+
+	return 0;
+}
diff -r b4b14259c787 -r 724d76f90c83 run/o/odd_bug_14_C.d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/run/o/odd_bug_14_C.d	Sat Mar 31 20:11:34 2007 +0000
@@ -0,0 +1,55 @@
+// $HeadURL$
+// $Date$
+// $Author$
+
+// @author@	<s180m@yahoo.co.jp>
+// @date@	2007-03-27
+// @uri@	http://d.puremagic.com/issues/show_bug.cgi?id=1081
+// @desc@	[Issue 1081] with using real and -O option, dmd generate bug code
+
+module dstress.run.o.odd_bug_14_C;
+
+const real PI =	0x1.921fb54442d1846ap+1;
+
+extern(C) double sin(double);
+extern(C) double round(double);
+
+int[] s_table;
+
+static this(){
+	s_table = new int[2<<16];
+
+	float t = 0.0;
+
+	for(int i=0; i< (2<<16); ++i){
+		t += 1.0 / 65536.0;
+		s_table[i] = cast(int) round( 65536.0 * sin(PI*t) * sin(PI/2.0*t) / ((PI*PI/2.0)*t*t) );
+	}
+	s_table[0] = 1<<16;
+}
+
+int foo(int a) {
+	if((a <= -2<<16) || (a >= 2<<16)){
+		return 0;
+	}
+
+	if(a<0){
+		a = -a;
+	}
+
+	return s_table[a];
+}
+
+int main(){
+	int d;
+
+	for(int i = -0x1abcd; i < 0x20000; i += 0x10000){
+		d += foo(i);
+	}
+
+	if(0==d){
+		assert(0);
+	}
+
+	return 0;
+}