1 files changed, 35 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/c90-const-expr-7.c b/gcc-4.9/gcc/testsuite/gcc.dg/c90-const-expr-7.c
new file mode 100644
index 000000000..30aeba06a
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/c90-const-expr-7.c
@@ -0,0 +1,35 @@
+/* Test for constant expressions: overflow and constant expressions;
+   see also overflow-warn-*.c for some other cases.  */
+/* Origin: Joseph Myers <joseph@codesourcery.com> */
+/* { dg-do compile } */
+/* { dg-options "-std=iso9899:1990 -pedantic-errors" } */
+
+#include <float.h>
+
+int a = DBL_MAX; /* { dg-warning "overflow in implicit constant conversion" } */
+/* { dg-error "overflow in constant expression" "constant" { target *-*-* } 9 } */
+int b = (int) DBL_MAX; /* { dg-error "overflow" "" } */
+unsigned int c = -1.0; /* { dg-warning "overflow in implicit constant conversion" } */
+/* { dg-error "overflow in constant expression" "constant" { target *-*-* } 12 } */
+unsigned int d = (unsigned)-1.0; /* { dg-error "overflow" } */
+
+int e = 0 << 1000; /* { dg-warning "shift count" } */
+/* { dg-error "constant" "constant" { target *-*-* } 16 } */
+int f = 0 << -1; /* { dg-warning "shift count" } */
+/* { dg-error "constant" "constant" { target *-*-* } 18 } */
+int g = 0 >> 1000; /* { dg-warning "shift count" } */
+/* { dg-error "constant" "constant" { target *-*-* } 20 } */
+int h = 0 >> -1; /* { dg-warning "shift count" } */
+/* { dg-error "constant" "constant" { target *-*-* } 22 } */
+
+int b1 = (0 ? (int) DBL_MAX : 0);
+unsigned int d1 = (0 ? (unsigned int)-1.0 : 0);
+int e1 = (0 ? 0 << 1000 : 0);
+int f1 = (0 ? 0 << -1 : 0);
+int g1 = (0 ? 0 >> 1000 : 0);
+int h1 = (0 ? 0 >> -1: 0);
+
+int i = -1 << 0;
+
+int j[1] = { DBL_MAX }; /* { dg-warning "overflow in implicit constant conversion" } */
+/* { dg-error "overflow in constant expression" "constant" { target *-*-* } 34 } */