Committed to branch dmalcolm/jit:

gcc/testsuite/ChangeLog.jit:
        * jit.dg/test-long-names.c: New test case.
        * jit.dg/all-non-failing-tests.h: Add test-long-names.c
        * jit.dg/test-combination.c (create_code): Likewise.
        (verify_code): Likewise.
        * jit.dg/test-threads.c (testcases): Likewise.
---
 gcc/testsuite/jit.dg/all-non-failing-tests.h |   7 ++
 gcc/testsuite/jit.dg/test-combination.c      |   2 +
 gcc/testsuite/jit.dg/test-long-names.c       | 112 +++++++++++++++++++++++++++
 gcc/testsuite/jit.dg/test-threads.c          |   3 +
 4 files changed, 124 insertions(+)
 create mode 100644 gcc/testsuite/jit.dg/test-long-names.c

diff --git a/gcc/testsuite/jit.dg/all-non-failing-tests.h 
b/gcc/testsuite/jit.dg/all-non-failing-tests.h
index 5f7b2ec..10d7199 100644
--- a/gcc/testsuite/jit.dg/all-non-failing-tests.h
+++ b/gcc/testsuite/jit.dg/all-non-failing-tests.h
@@ -102,6 +102,13 @@
 #undef create_code
 #undef verify_code
 
+/* test-long-names.c */
+#define create_code create_code_long_names
+#define verify_code verify_code_long_names
+#include "test-long-names.c"
+#undef create_code
+#undef verify_code
+
 /* test-quadratic.c */
 #define create_code create_code_quadratic
 #define verify_code verify_code_quadratic
diff --git a/gcc/testsuite/jit.dg/test-combination.c 
b/gcc/testsuite/jit.dg/test-combination.c
index 9d3a535..06ba902 100644
--- a/gcc/testsuite/jit.dg/test-combination.c
+++ b/gcc/testsuite/jit.dg/test-combination.c
@@ -28,6 +28,7 @@ create_code (gcc_jit_context *ctxt, void * user_data)
   create_code_functions (ctxt, user_data);
   create_code_hello_world (ctxt, user_data);
   create_code_linked_list (ctxt, user_data);
+  create_code_long_names (ctxt, user_data);
   create_code_quadratic (ctxt, user_data);
   create_code_nested_loop (ctxt, user_data);
   create_code_reading_struct  (ctxt, user_data);
@@ -54,6 +55,7 @@ verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
   verify_code_functions (ctxt, result);
   verify_code_hello_world (ctxt, result);
   verify_code_linked_list (ctxt, result);
+  verify_code_long_names (ctxt, result);
   verify_code_quadratic (ctxt, result);
   verify_code_nested_loop (ctxt, result);
   verify_code_reading_struct (ctxt, result);
diff --git a/gcc/testsuite/jit.dg/test-long-names.c 
b/gcc/testsuite/jit.dg/test-long-names.c
new file mode 100644
index 0000000..0fc7e67
--- /dev/null
+++ b/gcc/testsuite/jit.dg/test-long-names.c
@@ -0,0 +1,112 @@
+/* Test of using the API with very long names.  */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "libgccjit.h"
+
+#include "harness.h"
+
+/* 65KB */
+#define NAME_LENGTH (65 * 1024)
+
+static struct long_names
+{
+  char struct_name[NAME_LENGTH];
+  char fn_name[NAME_LENGTH];
+  char local_name[NAME_LENGTH];
+  char block_name[NAME_LENGTH];
+} long_names;
+
+static void
+populate_name (const char *prefix, char *buffer)
+{
+  int i;
+
+  /* Begin with the given prefix: */
+  sprintf (buffer, prefix);
+
+  /* Populate the rest of the buffer with 0123456789 repeatedly: */
+  for (i = strlen (prefix); i < NAME_LENGTH - 1; i++)
+    buffer[i] = '0' + (i % 10);
+
+  /* NIL-terminate the buffer: */
+  buffer[NAME_LENGTH - 1] = '\0';
+}
+
+static void
+populate_names (void)
+{
+  populate_name ("struct_", long_names.struct_name);
+  populate_name ("test_fn_", long_names.fn_name);
+  populate_name ("local_", long_names.local_name);
+  populate_name ("block_", long_names.block_name);
+}
+
+void
+create_code (gcc_jit_context *ctxt, void *user_data)
+{
+  /* Where "ETC" is a very long suffix, let's try to inject the
+     equivalent of:
+
+       struct struct_ETC;
+
+       int
+       test_fn_ETC ()
+       {
+         int local_ETC;
+         local_ETC = 42;
+         return local_ETC;
+       }
+
+     to verify that the API copes with such long names.  */
+
+  populate_names ();
+
+  gcc_jit_type *int_type =
+    gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
+
+  /* We don't yet use this struct.  */
+  (void)gcc_jit_context_new_opaque_struct (ctxt, NULL,
+                                          long_names.struct_name);
+
+  gcc_jit_function *test_fn =
+    gcc_jit_context_new_function (ctxt, NULL,
+                                 GCC_JIT_FUNCTION_EXPORTED,
+                                 int_type,
+                                 long_names.fn_name,
+                                 0, NULL,
+                                 0);
+  gcc_jit_lvalue *local =
+    gcc_jit_function_new_local (test_fn,
+                               NULL,
+                               int_type,
+                               long_names.local_name);
+
+  gcc_jit_block *block =
+    gcc_jit_function_new_block (test_fn, long_names.block_name);
+
+  gcc_jit_block_add_assignment (
+    block,
+    NULL,
+    local,
+    gcc_jit_context_new_rvalue_from_int (ctxt, int_type, 42));
+
+  gcc_jit_block_end_with_return (
+    block, NULL,
+    gcc_jit_lvalue_as_rvalue (local));
+}
+
+void
+verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
+{
+  CHECK_NON_NULL (result);
+
+  typedef int (*my_fn_type) (void);
+  CHECK_NON_NULL (result);
+  my_fn_type my_fn =
+    (my_fn_type)gcc_jit_result_get_code (result, long_names.fn_name);
+  CHECK_NON_NULL (my_fn);
+  int val = my_fn ();
+  CHECK_VALUE (val, 42);
+}
diff --git a/gcc/testsuite/jit.dg/test-threads.c 
b/gcc/testsuite/jit.dg/test-threads.c
index e3dd69f..efa146d 100644
--- a/gcc/testsuite/jit.dg/test-threads.c
+++ b/gcc/testsuite/jit.dg/test-threads.c
@@ -124,6 +124,9 @@ const struct testcase testcases[] = {
   {"linked_list",
    create_code_linked_list,
    verify_code_linked_list},
+  {"long_names",
+   create_code_long_names,
+   verify_code_long_names},
   {"quadratic",
    create_code_quadratic,
    verify_code_quadratic},
-- 
1.7.11.7

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