pr15784-1.c, [...]: New tests.

2005-02-13  James A. Morrison  <phython@gcc.gnu.org>

       * gcc.dg/pr15784-1.c, gcc.dg/pr15784-2.c, gcc.dg/pr15784-3.c: New tests.

From-SVN: r94978

gcc/testsuite/ChangeLog

+2005-02-13  James A. Morrison  <phython@gcc.gnu.org>
+
+	* gcc.dg/pr15784-1.c, gcc.dg/pr15784-2.c, gcc.dg/pr15784-3.c: New tests.
+
 2005-02-12  Dorit Naishlos  <dorit@il.ibm.com>
 
 	* gcc.dg/vect/vect-96.c: Fix typo.

gcc/testsuite/gcc.dg/pr15784-1.c

+/* { dg-do compile } */
+/* { dg-options "-fdump-tree-generic" } */
+/* Test for folding abs(x) where appropriate.  */
+#define abs(x) x > 0 ? x : -x
+extern double fabs (double);
+
+int a (int x) {
+	return (abs(x)) >= 0;
+}
+
+int b (int x) {
+	return (abs(x)) == 0;
+}
+
+int c (int x) {
+	return (abs(x)) != 0;
+}
+
+int d (int x) {
+	return 0 != (abs(x));
+}
+
+int e (int x) {
+	return 0 == (abs(x));
+}
+
+int f (int x) {
+	return 0 <= (abs(x));
+}
+
+int g (int x) {
+	return 0 > (abs(x));
+}
+
+int h (float x) {
+	return 0.0 > fabs(x);
+}
+
+int i (float x) {
+	return fabs(x) == -0.0;
+}
+/* { dg-final { scan-tree-dump-times "ABS_EXPR" 0 "generic" } } */

gcc/testsuite/gcc.dg/pr15784-2.c

+/* { dg-do compile } */
+/* { dg-options "-fdump-tree-generic -ffast-math" } */
+/* Test for folding abs(x) where appropriate.  */
+#define abs(x) x > 0 ? x : -x
+extern double fabs (double);
+
+int a (float x) {
+	return fabs(x) >= 0.0;
+}
+
+/* { dg-final { scan-tree-dump-times "ABS_EXPR" 0 "generic" } } */

gcc/testsuite/gcc.dg/pr15784-3.c

+/* { dg-do compile } */
+/* { dg-options "-fdump-tree-generic" } */
+/* Test for folding abs(x) where appropriate.  */
+#define abs(x) x > 0 ? x : -x
+extern double fabs (double);
+
+int a (float x) {
+	return fabs(x) >= 0.0;
+}
+
+/* { dg-final { scan-tree-dump-times "ABS_EXPR" 1 "generic" } } */