New testcase

git-svn-id: https://llvm.org/svn/llvm-project/test-suite/trunk@24047 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 56 insertions, 0 deletions

diff --git a/SingleSource/Regression/C/PR640.c b/SingleSource/Regression/C/PR640.c
new file mode 100644
index 00000000..97d2a020
--- /dev/null
+++ b/SingleSource/Regression/C/PR640.c
@@ -0,0 +1,56 @@
+#include <stdarg.h>
+#include <stdio.h>
+
+static int test_stdarg_va(void* p1, ...)
+{
+    va_list ap;
+    unsigned long l;
+    int i1, i2;
+    void* p2;
+    va_start(ap, p1);
+    i1 = va_arg(ap, int);
+    l = va_arg(ap, unsigned long);
+    i2 = va_arg(ap, int);
+    p2 = va_arg(ap, void *);
+    va_end(ap);
+    return p1 == p2 && i1 == 1 && l == 0x76214365ul && i2 == 2;
+}
+
+
+static int test_stdarg_builtin_va(void* p1, ...)
+{
+    __builtin_va_list ap;
+    unsigned long l;
+    int i1, i2;
+    void* p2;
+    __builtin_stdarg_start(ap, p1);
+    i1 = __builtin_va_arg(ap, int);
+    l = __builtin_va_arg(ap, unsigned long);
+    i2 = __builtin_va_arg(ap, int);
+    p2 = __builtin_va_arg(ap, void *);
+    __builtin_va_end(ap);
+    return p1 == p2 && i1 == 1 && l == 0x76214369ul && i2 == 2;
+}
+
+
+static int test_stdarg(int r)
+{
+    char c1 = 1, c2 = 2;
+    if (test_stdarg_va(&r, c1, 0x76214365ul, c2, &r) != 1)
+        return 0;
+    if (test_stdarg_builtin_va(&r, c1, 0x76214369ul, c2, &r) != 1)
+        return 0;
+    return r & 1;
+}
+
+
+int main(int argc, char **argv)
+{
+    if (test_stdarg(1) != 1) {
+        printf("ERROR\n");
+        return 1;
+    }
+    printf("All done.\n");
+    return 0;
+}
+