add a testcase for the double/float issue on ARMHF

diff --git a/testsuite/libffi.call/cls_many_mixed_float_double.c b/testsuite/libffi.call/cls_many_mixed_float_double.c
new file mode 100644 (file)
index 0000000..62b0697
--- /dev/null
+++ b/testsuite/libffi.call/cls_many_mixed_float_double.c
@@ -0,0 +1,55 @@
+/* Area:       closure_call
+   Purpose:    Check register allocation for closure calls with many float and double arguments
+   Limitations:        none.
+   PR:         none.
+   Originator: <david.schneider@picle.org> */
+
+/* { dg-do run } */
+#include "ffitest.h"
+#include <float.h>
+#include <math.h>
+
+#define NARGS 16
+
+static void cls_mixed_float_double_fn(ffi_cif* cif , void* ret, void** args,
+                             void* userdata __UNUSED__)
+{
+    double r = 0;
+    unsigned int i;
+    double t;
+    for(i=0; i < cif->nargs; i++)
+    {
+        if(cif->arg_types[i] == &ffi_type_double) {
+                               t = *(((double**)(args))[i]);
+        } else {
+                               t = *(((float**)(args))[i]);
+        }
+        r += t;
+    }
+    *((double*)ret) = r;
+}
+typedef double (*cls_mixed)(double, float, double, double, double, double, double, float, float, double, float, float);
+
+int main (void)
+{
+    ffi_cif cif;
+    ffi_closure *closure;
+       void* code;
+    ffi_type *argtypes[12] = {&ffi_type_double, &ffi_type_float, &ffi_type_double,
+                          &ffi_type_double, &ffi_type_double, &ffi_type_double,
+                          &ffi_type_double, &ffi_type_float, &ffi_type_float,
+                          &ffi_type_double, &ffi_type_float, &ffi_type_float};
+
+
+    closure = ffi_closure_alloc(sizeof(ffi_closure), (void**)&code);
+    if(closure ==NULL)
+               abort();
+    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 12, &ffi_type_double, argtypes) == FFI_OK);
+       CHECK(ffi_prep_closure_loc(closure, &cif, cls_mixed_float_double_fn, NULL,  code) == FFI_OK);
+    double ret = ((cls_mixed)code)(0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2);
+    ffi_closure_free(closure);
+       if(fabs(ret - 7.8) < FLT_EPSILON)
+               exit(0);
+       else
+               abort();
+}