1 files changed, 59 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/utf-cvt.c b/gcc/testsuite/gcc.dg/utf-cvt.c
new file mode 100644
index 000000000..7f51179ee
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/utf-cvt.c
@@ -0,0 +1,59 @@
+/* Contributed by Kris Van Hees <kris.van.hees@oracle.com> */
+/* Test the char16_t and char32_t promotion rules. */
+/* { dg-do compile } */
+/* { dg-excess-errors "short and int are 16bit" { target { "avr-*-*" } } } */
+/* { dg-options "-std=gnu99 -Wall -Wconversion -Wsign-conversion" } */
+
+typedef __CHAR16_TYPE__ char16_t;
+typedef __CHAR32_TYPE__ char32_t;
+
+extern void f_c (char);
+extern void fsc (signed char);
+extern void fuc (unsigned char);
+extern void f_s (short);
+extern void fss (signed short);
+extern void fus (unsigned short);
+extern void f_i (int);
+extern void fsi (signed int);
+extern void fui (unsigned int);
+extern void f_l (long);
+extern void fsl (signed long);
+extern void ful (unsigned long);
+extern void f_ll (long long);
+extern void fsll (signed long long);
+extern void full (unsigned long long);
+
+void m (char16_t c0, char32_t c1)
+{
+    f_c (c0);	/* { dg-warning "alter its value" } */
+    fsc (c0);	/* { dg-warning "alter its value" } */
+    fuc (c0);	/* { dg-warning "alter its value" } */
+    f_s (c0);	/* { dg-warning "change the sign" } */
+    fss (c0);	/* { dg-warning "change the sign" } */
+    fus (c0);
+    f_i (c0);
+    fsi (c0);
+    fui (c0);
+    f_l (c0);
+    fsl (c0);
+    ful (c0);
+    f_ll (c0);
+    fsll (c0);
+    full (c0);
+
+    f_c (c1);	/* { dg-warning "alter its value" } */
+    fsc (c1);	/* { dg-warning "alter its value" } */
+    fuc (c1);	/* { dg-warning "alter its value" } */
+    f_s (c1);	/* { dg-warning "alter its value" } */
+    fss (c1);	/* { dg-warning "alter its value" } */
+    fus (c1);	/* { dg-warning "alter its value" } */
+    f_i (c1);	/* { dg-warning "change the sign" "" { target { ! int16 } } } */
+    fsi (c1);	/* { dg-warning "change the sign" "" { target { ! int16 } } } */
+    fui (c1);
+    f_l (c1);	/* { dg-warning "change the sign" "" { target { llp64 || ilp32 } } } */
+    fsl (c1);	/* { dg-warning "change the sign" "" { target { llp64 || ilp32 } } } */
+    ful (c1);
+    f_ll (c1);
+    fsll (c1);
+    full (c1);
+}