From acf0ce9e9b0bcd73d39f599a53e9924ba74c13c1 Mon Sep 17 00:00:00 2001
From: Anthony Green <green@moxielogic.com>
Date: Sun, 18 Sep 2022 11:04:54 -0400
Subject: Add test case

---
 testsuite/libffi.call/s55.c | 60 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 testsuite/libffi.call/s55.c

diff --git a/testsuite/libffi.call/s55.c b/testsuite/libffi.call/s55.c
new file mode 100644
index 0000000..94dfd5f
--- /dev/null
+++ b/testsuite/libffi.call/s55.c
@@ -0,0 +1,60 @@
+/* Area:	ffi_call
+   Purpose:	Check structures.
+   Limitations:	none.
+   PR:		none.
+   Originator:	From the original ffitest.c  */
+
+/* { dg-do run } */
+#include "ffitest.h"
+
+typedef struct
+{
+  float f;
+} s55;
+
+static s55 ABI_ATTR f55(s55 ts, float f)
+{
+  s55 r;
+  r.f = ts.f + f;
+  printf ("f55>> %g + %g = %g\n", ts.f, f, r.f);
+  return r;
+}
+
+int main (void)
+{
+  ffi_cif cif;
+  s55 F, Fr;
+  float f;
+  void *values[] = { &F, &f };
+  ffi_type s55_type;
+  ffi_type *args[] = { &s55_type, &ffi_type_float };
+  ffi_type *s55_type_elements[] = { &ffi_type_float, NULL };
+
+  /* This is a hack to get a properly aligned result buffer */
+  s55 *s55_result =
+    (s55 *) malloc (sizeof(s55));
+
+  s55_type.size = 0;
+  s55_type.alignment = 0;
+  s55_type.type = FFI_TYPE_STRUCT;
+  s55_type.elements = s55_type_elements;
+
+  /* Initialize the cif */
+  CHECK(ffi_prep_cif(&cif, ABI_NUM, 2, &s55_type, args) == FFI_OK);
+
+  F.f = 1;
+  Fr = f55(F, 2.14);
+  printf ("%g\n", Fr.f);
+
+  F.f = 1;
+  f = 2.14;
+  ffi_call(&cif, FFI_FN(f55), s55_result, values);
+  printf ("%g\n", s55_result->f);
+
+  fflush(0);
+
+  CHECK(fabs(Fr.f - s55_result->f) < FLT_EPSILON);
+
+  free (s55_result);
+  exit(0);
+}
-- 
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