1 files changed, 32 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/i386-signbit-3.c b/gcc/testsuite/gcc.dg/i386-signbit-3.c
new file mode 100644
index 00000000000..f48908964b1
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/i386-signbit-3.c
@@ -0,0 +1,32 @@
+/* PR optimization/8746 */
+/* { dg-do run { target i?86-*-* } } */
+/* { dg-options "-O1 -mcpu=i586" } */
+
+extern void abort (void);
+
+volatile int j;
+
+void f0() { j=0; }
+void f1() { j=1; }
+
+int foo(int x)
+{
+  if ((short int)(x&0x8000) > (short int)0)
+  {
+    f0();
+    return 0;
+  }
+  else
+  {
+    f1();
+    return 1;
+  }
+}
+
+int main(void)
+{
+  if (foo(0x8000) != 1)
+    abort();
+
+   return 0;
+}