1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr15784-2.c b/gcc/testsuite/gcc.dg/pr15784-2.c
new file mode 100644
index 000000000..eb1608c64
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr15784-2.c
@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-options "-fdump-tree-gimple -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 "gimple" } } */
+/* { dg-final { cleanup-tree-dump "gimple" } } */