Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 26 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/gnu89-const-expr-2.c b/gcc-4.9/gcc/testsuite/gcc.dg/gnu89-const-expr-2.c
new file mode 100644
index 000000000..fd4d18ed9
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/gnu89-const-expr-2.c
@@ -0,0 +1,26 @@
+/* Test for constant expressions: __builtin_choose_expr.  */
+/* Origin: Joseph Myers <joseph@codesourcery.com> */
+/* { dg-do compile } */
+/* { dg-options "-std=gnu89 -pedantic-errors" } */
+
+#include <limits.h>
+
+int a, b, c;
+
+void
+f (void)
+{
+  /* __builtin_choose_expr acts exactly like the chosen argument for
+     all constant expression purposes.  */
+  enum e {
+    E1 = __builtin_choose_expr (1, 1, ++b)
+  };
+  /* The first argument to __builtin_choose_expr must be an integer
+     constant expression.  */
+  a = __builtin_choose_expr ((void *)0, b, c); /* { dg-error "constant" } */
+  a = __builtin_choose_expr (0 * (INT_MAX + 1), b, c); /* { dg-warning "integer overflow in expression" } */
+  /* { dg-error "overflow in constant expression" "constant" { target *-*-* } 21 } */
+  a = __builtin_choose_expr (1 / 0, 0, 0); /* { dg-warning "division by zero" } */
+  /* { dg-error "not a constant" "error" { target *-*-* } 23 } */
+  a = __builtin_choose_expr ((1 ? 1 : a), b, c); /* { dg-error "constant" } */
+}