Antoni spot a typo I made:
I added `LIBGCCJIT_HAVE_gcc_jit_type_get_size` instead of
`LIBGCCJIT_HAVE_gcc_jit_type_get_restrict`. Fixed in this patch, sorry
for the noise.
Le jeu. 17 août 2023 à 11:30, Guillaume Gomez
<guillaume1.go...@gmail.com> a écrit :
>
> Hi Dave,
>
> > What kind of testing has the patch had? (e.g. did you run "make check-
> > jit" ? Has this been in use on real Rust code?)
>
> I tested it as Rust backend directly on this code:
>
> ```
> pub fn foo(a: &mut i32, b: &mut i32, c: &i32) {
> *a += *c;
> *b += *c;
> }
> ```
>
> I ran it with `rustc` (and the GCC backend) with the following flags:
> `-C link-args=-lc --emit=asm -O --crate-type=lib` which gave the diff
> you can see in the attached file. Explanations: the diff on the right
> has the `__restrict__` attribute used whereas on the left it is the
> current version where we don't handle it.
>
> As for C testing, I used this code:
>
> ```
> void t(int *__restrict__ a, int *__restrict__ b, char *__restrict__ c) {
> *a += *c;
> *b += *c;
> }
> ```
>
> (without the `__restrict__` of course when I need to have a witness
> ASM). I attached the diff as well, this time the file with the use of
> `__restrict__` in on the left. I compiled with the following flags:
> `-S -O3`.
>
> > Please add a feature macro:
> > #define LIBGCCJIT_HAVE_gcc_jit_type_get_restrict
> > (see the similar ones in the header).
>
> I added `LIBGCCJIT_HAVE_gcc_jit_type_get_size` and extended the
> documentation as well to mention the ABI change.
>
> > Please add a new ABI tag (LIBGCCJIT_ABI_25 ?), rather than adding this
> > to ABI_0.
>
> I added `LIBGCCJIT_ABI_34` as `LIBGCCJIT_ABI_33` was the last one.
>
> > This refers to a "cold attribute"; is this a vestige of a copy-and-
> > paste from a different test case?
>
> It is a vestige indeed... Missed this one.
>
> > I see that the test scans the generated assembler. Does the test
> > actually verify that restrict has an effect, or was that another
> > vestige from a different test case?
>
> No, this time it's what I wanted. Please see the C diff I provided
> above to see that the ASM has a small diff that allowed me to confirm
> that the `__restrict__` attribute was correctly set.
>
> > If this test is meant to run at -O3 and thus can't be part of test-
> > combination.c, please add a comment about it to
> > gcc/testsuite/jit.dg/all-non-failing-tests.h (in the alphabetical
> > place).
>
> Below `-O3`, this ASM difference doesn't appear unfortunately.
>
> > The patch also needs to add documentation for the new entrypoint (in
> > topics/types.rst), and for the new ABI tag (in
> > topics/compatibility.rst).
>
> Added!
>
> > Thanks again for the patch; hope the above is constructive
>
> It was incredibly useful! Thanks for taking time to writing down the
> explanations.
>
> The new patch is attached to this email.
>
> Cordially.
>
> Le jeu. 17 août 2023 à 01:06, David Malcolm <dmalc...@redhat.com> a écrit :
> >
> > On Wed, 2023-08-16 at 22:06 +0200, Guillaume Gomez via Jit wrote:
> > > My apologies, forgot to run the commit checkers. Here's the commit
> > > with the errors fixed.
> > >
> > > Le mer. 16 août 2023 à 18:32, Guillaume Gomez
> > > <guillaume1.go...@gmail.com> a écrit :
> > > >
> > > > Hi,
> >
> > Hi Guillaume, thanks for the patch.
> >
> > > >
> > > > This patch adds the possibility to specify the __restrict__
> > > > attribute
> > > > for function parameters. It is used by the Rust GCC backend.
> >
> > What kind of testing has the patch had? (e.g. did you run "make check-
> > jit" ? Has this been in use on real Rust code?)
> >
> > Overall, this patch looks close to being ready, but some nits below...
> >
> > [...]
> >
> > > diff --git a/gcc/jit/libgccjit.h b/gcc/jit/libgccjit.h
> > > index 60eaf39bff6..2e0d08a06d8 100644
> > > --- a/gcc/jit/libgccjit.h
> > > +++ b/gcc/jit/libgccjit.h
> > > @@ -635,6 +635,10 @@ gcc_jit_type_get_const (gcc_jit_type *type);
> > > extern gcc_jit_type *
> > > gcc_jit_type_get_volatile (gcc_jit_type *type);
> > >
> > > +/* Given type "T", get type "restrict T". */
> > > +extern gcc_jit_type *
> > > +gcc_jit_type_get_restrict (gcc_jit_type *type);
> > > +
> > > #define LIBGCCJIT_HAVE_SIZED_INTEGERS
> > >
> > > /* Given types LTYPE and RTYPE, return non-zero if they are
> > compatible.
> >
> > Please add a feature macro:
> > #define LIBGCCJIT_HAVE_gcc_jit_type_get_restrict
> > (see the similar ones in the header).
> >
> > > diff --git a/gcc/jit/libgccjit.map b/gcc/jit/libgccjit.map
> > > index e52de0057a5..b7289b13845 100644
> > > --- a/gcc/jit/libgccjit.map
> > > +++ b/gcc/jit/libgccjit.map
> > > @@ -104,6 +104,7 @@ LIBGCCJIT_ABI_0
> > > gcc_jit_type_as_object;
> > > gcc_jit_type_get_const;
> > > gcc_jit_type_get_pointer;
> > > + gcc_jit_type_get_restrict;
> > > gcc_jit_type_get_volatile;
> >
> > Please add a new ABI tag (LIBGCCJIT_ABI_25 ?), rather than adding this
> > to ABI_0.
> >
> > > diff --git a/gcc/testsuite/jit.dg/test-restrict.c
> > b/gcc/testsuite/jit.dg/test-restrict.c
> > > new file mode 100644
> > > index 00000000000..4c8c4407f91
> > > --- /dev/null
> > > +++ b/gcc/testsuite/jit.dg/test-restrict.c
> > > @@ -0,0 +1,77 @@
> > > +/* { dg-do compile { target x86_64-*-* } } */
> > > +
> > > +#include <stdlib.h>
> > > +#include <stdio.h>
> > > +
> > > +#include "libgccjit.h"
> > > +
> > > +/* We don't want set_options() in harness.h to set -O3 to see that
> > the cold
> > > + attribute affects the optimizations. */
> >
> > This refers to a "cold attribute"; is this a vestige of a copy-and-
> > paste from a different test case?
> >
> > I see that the test scans the generated assembler. Does the test
> > actually verify that restrict has an effect, or was that another
> > vestige from a different test case?
> >
> > > +#define TEST_ESCHEWS_SET_OPTIONS
> > > +static void set_options (gcc_jit_context *ctxt, const char *argv0)
> > > +{
> > > + // Set "-O3".
> > > + gcc_jit_context_set_int_option(ctxt,
> > GCC_JIT_INT_OPTION_OPTIMIZATION_LEVEL, 3);
> > > +}
> > > +
> > > +#define TEST_COMPILING_TO_FILE
> > > +#define OUTPUT_KIND GCC_JIT_OUTPUT_KIND_ASSEMBLER
> > > +#define OUTPUT_FILENAME "output-of-test-restrict.c.s"
> > > +#include "harness.h"
> > > +
> > > +void
> > > +create_code (gcc_jit_context *ctxt, void *user_data)
> > > +{
> > > + /* Let's try to inject the equivalent of:
> > > +void t(int *__restrict__ a, int *__restrict__ b, char *__restrict__
> > c) {
> > > + *a += *c;
> > > + *b += *c;
> > > +}
> > > + */
> > > + gcc_jit_type *int_type =
> > > + gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
> > > + gcc_jit_type *pint_type = gcc_jit_type_get_pointer(int_type);
> > > + gcc_jit_type *pint_restrict_type =
> > gcc_jit_type_get_restrict(pint_type);
> > > +
> > > + gcc_jit_type *void_type =
> > > + gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
> > > +
> > > + gcc_jit_param *a =
> > > + gcc_jit_context_new_param (ctxt, NULL,
> > pint_restrict_type, "a");
> > > + gcc_jit_param *b =
> > > + gcc_jit_context_new_param (ctxt, NULL,
> > pint_restrict_type, "b");
> > > + gcc_jit_param *c =
> > > + gcc_jit_context_new_param (ctxt, NULL,
> > pint_restrict_type, "c");
> > > + gcc_jit_param *params[3] = {a, b, c};
> > > +
> > > + gcc_jit_function *func_t =
> > > + gcc_jit_context_new_function (ctxt, NULL,
> > > + GCC_JIT_FUNCTION_EXPORTED,
> > > + void_type,
> > > + "t",
> > > + 3, params,
> > > + 0);
> > > +
> > > + gcc_jit_block *block = gcc_jit_function_new_block (func_t,
> > NULL);
> > > +
> > > + /* *a += *c; */
> > > + gcc_jit_block_add_assignment_op (
> > > + block, NULL,
> > > + gcc_jit_rvalue_dereference (gcc_jit_param_as_rvalue
> > (a), NULL),
> > > + GCC_JIT_BINARY_OP_PLUS,
> > > + gcc_jit_lvalue_as_rvalue (
> > > + gcc_jit_rvalue_dereference
> > (gcc_jit_param_as_rvalue (c), NULL)));
> > > + /* *b += *c; */
> > > + gcc_jit_block_add_assignment_op (
> > > + block, NULL,
> > > + gcc_jit_rvalue_dereference (gcc_jit_param_as_rvalue
> > (b), NULL),
> > > + GCC_JIT_BINARY_OP_PLUS,
> > > + gcc_jit_lvalue_as_rvalue (
> > > + gcc_jit_rvalue_dereference
> > (gcc_jit_param_as_rvalue (c), NULL)));
> > > +
> > > + gcc_jit_block_end_with_void_return (block, NULL);
> > > +}
> > > +
> > > +/* { dg-final { jit-verify-output-file-was-created "" } } */
> > > +/* { dg-final { jit-verify-assembler-output "addl %eax, (%rdi)
> > > + addl %eax, (%rsi)" } } */
> > > --
> > > 2.34.1
> > >
> >
> > If this test is meant to run at -O3 and thus can't be part of test-
> > combination.c, please add a comment about it to
> > gcc/testsuite/jit.dg/all-non-failing-tests.h (in the alphabetical
> > place).
> >
> > The patch also needs to add documentation for the new entrypoint (in
> > topics/types.rst), and for the new ABI tag (in
> > topics/compatibility.rst).
> >
> >
> > Thanks again for the patch; hope the above is constructive
> > Dave
> >
From 8a27210f7b637daa764f6421cc66013a2cf37233 Mon Sep 17 00:00:00 2001
From: Guillaume Gomez <guillaume1.go...@gmail.com>
Date: Fri, 11 Aug 2023 22:48:11 +0200
Subject: [PATCH] [PATCH] Add support for `restrict` attribute on function
parameters
gcc/jit/Changelog:
* jit-playback.cc: Remove trailing whitespace characters.
* jit-playback.h: Add get_restrict method.
* jit-recording.cc: Add get_restrict methods.
* jit-recording.h: Add get_restrict methods.
* libgccjit++.h: Add get_restrict methods.
* libgccjit.cc: Add gcc_jit_type_get_restrict.
* libgccjit.h: Declare gcc_jit_type_get_restrict.
* libgccjit.map: Declare gcc_jit_type_get_restrict.
gcc/testsuite/ChangeLog:
* jit.dg/test-restrict.c: Add test for __restrict__ attribute.
* jit.dg/all-non-failing-tests.h: Add test-restrict.c to the list.
gcc/jit/ChangeLog:
* docs/topics/compatibility.rst: Add documentation for LIBGCCJIT_ABI_34.
* docs/topics/types.rst: Add documentation for gcc_jit_type_get_restrict.
Signed-off-by: Guillaume Gomez <guillaume1.go...@gmail.com>
---
gcc/jit/docs/topics/compatibility.rst | 7 ++
gcc/jit/docs/topics/types.rst | 12 +++
gcc/jit/jit-playback.cc | 2 +-
gcc/jit/jit-playback.h | 5 ++
gcc/jit/jit-recording.cc | 47 ++++++++++++
gcc/jit/jit-recording.h | 39 +++++++++-
gcc/jit/libgccjit++.h | 6 ++
gcc/jit/libgccjit.cc | 14 ++++
gcc/jit/libgccjit.h | 9 +++
gcc/jit/libgccjit.map | 5 ++
gcc/testsuite/jit.dg/all-non-failing-tests.h | 3 +
gcc/testsuite/jit.dg/test-restrict.c | 77 ++++++++++++++++++++
12 files changed, 223 insertions(+), 3 deletions(-)
create mode 100644 gcc/testsuite/jit.dg/test-restrict.c
diff --git a/gcc/jit/docs/topics/compatibility.rst b/gcc/jit/docs/topics/compatibility.rst
index 27845ea9a84..866cf008128 100644
--- a/gcc/jit/docs/topics/compatibility.rst
+++ b/gcc/jit/docs/topics/compatibility.rst
@@ -371,3 +371,10 @@ alignment of a variable:
* :func:`gcc_jit_lvalue_set_alignment`
* :func:`gcc_jit_lvalue_get_alignment`
+
+.. _LIBGCCJIT_ABI_34:
+
+``LIBGCCJIT_ABI_34``
+--------------------
+``LIBGCCJIT_ABI_34`` covers the addition of
+:func:`gcc_jit_type_get_restrict`
diff --git a/gcc/jit/docs/topics/types.rst b/gcc/jit/docs/topics/types.rst
index 457b3623ec9..8a62bc59bbb 100644
--- a/gcc/jit/docs/topics/types.rst
+++ b/gcc/jit/docs/topics/types.rst
@@ -541,3 +541,15 @@ Reflection API
.. code-block:: c
#ifdef LIBGCCJIT_HAVE_SIZED_INTEGERS
+
+.. function:: gcc_jit_type *\
+ gcc_jit_type_get_restrict (gcc_jit_type *type)
+
+ Given type "T", get type "restrict T".
+
+ This entrypoint was added in :ref:`LIBGCCJIT_ABI_34`; you can test for
+ its presence using
+
+ .. code-block:: c
+
+ #ifdef LIBGCCJIT_HAVE_gcc_jit_type_get_restrict
diff --git a/gcc/jit/jit-playback.cc b/gcc/jit/jit-playback.cc
index 88e1b212030..0eb4e94fdc4 100644
--- a/gcc/jit/jit-playback.cc
+++ b/gcc/jit/jit-playback.cc
@@ -3793,7 +3793,7 @@ if (t) \
NAME_TYPE (complex_float_type_node, "complex float");
NAME_TYPE (complex_double_type_node, "complex double");
NAME_TYPE (complex_long_double_type_node, "complex long double");
-
+
m_const_char_ptr = build_pointer_type(
build_qualified_type (char_type_node, TYPE_QUAL_CONST));
diff --git a/gcc/jit/jit-playback.h b/gcc/jit/jit-playback.h
index d153f4945d8..fb4f7b8b65b 100644
--- a/gcc/jit/jit-playback.h
+++ b/gcc/jit/jit-playback.h
@@ -490,6 +490,11 @@ public:
return new type (build_qualified_type (m_inner, TYPE_QUAL_VOLATILE));
}
+ type *get_restrict () const
+ {
+ return new type (build_qualified_type (m_inner, TYPE_QUAL_RESTRICT));
+ }
+
type *get_aligned (size_t alignment_in_bytes) const;
type *get_vector (size_t num_units) const;
diff --git a/gcc/jit/jit-recording.cc b/gcc/jit/jit-recording.cc
index f962c9748c4..f1ac8084522 100644
--- a/gcc/jit/jit-recording.cc
+++ b/gcc/jit/jit-recording.cc
@@ -2380,6 +2380,19 @@ recording::type::get_const ()
return result;
}
+/* Given a type T, get the type restrict T.
+
+ Implements the post-error-checking part of
+ gcc_jit_type_get_restrict. */
+
+recording::type *
+recording::type::get_restrict ()
+{
+ recording::type *result = new memento_of_get_restrict (this);
+ m_ctxt->record (result);
+ return result;
+}
+
/* Given a type T, get the type volatile T.
Implements the post-error-checking part of
@@ -3090,6 +3103,40 @@ recording::memento_of_get_volatile::write_reproducer (reproducer &r)
r.get_identifier_as_type (m_other_type));
}
+/* The implementation of class gcc::jit::recording::memento_of_get_restrict. */
+
+/* Implementation of pure virtual hook recording::memento::replay_into
+ for recording::memento_of_get_restrict. */
+
+void
+recording::memento_of_get_restrict::replay_into (replayer *)
+{
+ set_playback_obj (m_other_type->playback_type ()->get_restrict ());
+}
+
+/* Implementation of recording::memento::make_debug_string for
+ results of get_restrict, prepending "restrict ". */
+
+recording::string *
+recording::memento_of_get_restrict::make_debug_string ()
+{
+ return string::from_printf (m_ctxt,
+ "restrict %s", m_other_type->get_debug_string ());
+}
+
+/* Implementation of recording::memento::write_reproducer for restrict
+ types. */
+
+void
+recording::memento_of_get_restrict::write_reproducer (reproducer &r)
+{
+ const char *id = r.make_identifier (this, "type");
+ r.write (" gcc_jit_type *%s =\n"
+ " gcc_jit_type_get_restrict (%s);\n",
+ id,
+ r.get_identifier_as_type (m_other_type));
+}
+
/* The implementation of class gcc::jit::recording::memento_of_get_aligned. */
/* Implementation of pure virtual hook recording::memento::replay_into
diff --git a/gcc/jit/jit-recording.h b/gcc/jit/jit-recording.h
index 929bbe37c3f..0f20bbacff2 100644
--- a/gcc/jit/jit-recording.h
+++ b/gcc/jit/jit-recording.h
@@ -555,6 +555,7 @@ public:
type *get_pointer ();
type *get_const ();
type *get_volatile ();
+ type *get_restrict ();
type *get_aligned (size_t alignment_in_bytes);
type *get_vector (size_t num_units);
@@ -603,6 +604,7 @@ public:
virtual bool is_bool () const = 0;
virtual type *is_pointer () = 0;
virtual type *is_volatile () { return NULL; }
+ virtual type *is_restrict () { return NULL; }
virtual type *is_const () { return NULL; }
virtual type *is_array () = 0;
virtual struct_ *is_struct () { return NULL; }
@@ -737,7 +739,7 @@ private:
};
/* A decorated version of a type, for get_const, get_volatile,
- get_aligned, and get_vector. */
+ get_aligned, get_restrict, and get_vector. */
class decorated_type : public type
{
@@ -810,7 +812,7 @@ public:
return m_other_type->is_same_type_as (other->is_volatile ());
}
- type* copy(context* ctxt) final override
+ type* copy (context* ctxt) final override
{
type* result = new memento_of_get_volatile (m_other_type->copy (ctxt));
ctxt->record (result);
@@ -829,6 +831,39 @@ private:
void write_reproducer (reproducer &r) final override;
};
+/* Result of "gcc_jit_type_get_restrict". */
+class memento_of_get_restrict : public decorated_type
+{
+public:
+ memento_of_get_restrict (type *other_type)
+ : decorated_type (other_type) {}
+
+ bool is_same_type_as (type *other) final override
+ {
+ if (!other->is_restrict ())
+ return false;
+ return m_other_type->is_same_type_as (other->is_restrict ());
+ }
+
+ type* copy (context* ctxt) final override
+ {
+ type* result = new memento_of_get_restrict (m_other_type->copy (ctxt));
+ ctxt->record (result);
+ return result;
+ }
+
+ /* Strip off the "restrict", giving the underlying type. */
+ type *unqualified () final override { return m_other_type; }
+
+ type *is_restrict () final override { return m_other_type; }
+
+ void replay_into (replayer *) final override;
+
+private:
+ string * make_debug_string () final override;
+ void write_reproducer (reproducer &r) final override;
+};
+
/* Result of "gcc_jit_type_get_aligned". */
class memento_of_get_aligned : public decorated_type
{
diff --git a/gcc/jit/libgccjit++.h b/gcc/jit/libgccjit++.h
index 4b88e877bc9..b430f7eb049 100644
--- a/gcc/jit/libgccjit++.h
+++ b/gcc/jit/libgccjit++.h
@@ -1410,6 +1410,12 @@ type::get_const ()
return type (gcc_jit_type_get_const (get_inner_type ()));
}
+inline type
+type::get_restrict ()
+{
+ return type (gcc_jit_type_get_restrict (get_inner_type ()));
+}
+
inline type
type::get_volatile ()
{
diff --git a/gcc/jit/libgccjit.cc b/gcc/jit/libgccjit.cc
index 050e68b738c..9b87e0569d6 100644
--- a/gcc/jit/libgccjit.cc
+++ b/gcc/jit/libgccjit.cc
@@ -539,6 +539,20 @@ gcc_jit_type_get_volatile (gcc_jit_type *type)
return (gcc_jit_type *)type->get_volatile ();
}
+/* Public entrypoint. See description in libgccjit.h.
+
+ After error-checking, the real work is done by the
+ gcc::jit::recording::type::get_restrict method, in
+ jit-recording.cc. */
+
+gcc_jit_type *
+gcc_jit_type_get_restrict (gcc_jit_type *type)
+{
+ RETURN_NULL_IF_FAIL (type, NULL, NULL, "NULL type");
+
+ return (gcc_jit_type *)type->get_restrict ();
+}
+
/* Public entrypoint. See description in libgccjit.h.
After error-checking, the real work is done by the
diff --git a/gcc/jit/libgccjit.h b/gcc/jit/libgccjit.h
index 60eaf39bff6..e2432589d71 100644
--- a/gcc/jit/libgccjit.h
+++ b/gcc/jit/libgccjit.h
@@ -635,6 +635,15 @@ gcc_jit_type_get_const (gcc_jit_type *type);
extern gcc_jit_type *
gcc_jit_type_get_volatile (gcc_jit_type *type);
+#define LIBGCCJIT_HAVE_gcc_jit_type_get_restrict
+
+/* Given type "T", get type "restrict T".
+ This API entrypoint was added in LIBGCCJIT_ABI_34; you can test for its
+ presence using
+ #ifdef LIBGCCJIT_HAVE_gcc_jit_type_get_restrict */
+extern gcc_jit_type *
+gcc_jit_type_get_restrict (gcc_jit_type *type);
+
#define LIBGCCJIT_HAVE_SIZED_INTEGERS
/* Given types LTYPE and RTYPE, return non-zero if they are compatible.
diff --git a/gcc/jit/libgccjit.map b/gcc/jit/libgccjit.map
index e52de0057a5..cc62216412b 100644
--- a/gcc/jit/libgccjit.map
+++ b/gcc/jit/libgccjit.map
@@ -326,3 +326,8 @@ LIBGCCJIT_ABI_33 {
gcc_jit_target_info_arch;
gcc_jit_target_info_supports_128bit_int;
} LIBGCCJIT_ABI_32;
+
+LIBGCCJIT_ABI_34 {
+ global:
+ gcc_jit_type_get_restrict;
+} LIBGCCJIT_ABI_33;
diff --git a/gcc/testsuite/jit.dg/all-non-failing-tests.h b/gcc/testsuite/jit.dg/all-non-failing-tests.h
index 988e14ae9bc..9875cbe623c 100644
--- a/gcc/testsuite/jit.dg/all-non-failing-tests.h
+++ b/gcc/testsuite/jit.dg/all-non-failing-tests.h
@@ -313,6 +313,9 @@
#undef create_code
#undef verify_code
+/* test-restrict.c: This can't be in the testcases array as it needs
+ the `-O3` flag. */
+
/* test-register-variable.c: This can't be in the testcases array as it
is target-specific. */
diff --git a/gcc/testsuite/jit.dg/test-restrict.c b/gcc/testsuite/jit.dg/test-restrict.c
new file mode 100644
index 00000000000..a6ac96324d2
--- /dev/null
+++ b/gcc/testsuite/jit.dg/test-restrict.c
@@ -0,0 +1,77 @@
+/* { dg-do compile { target x86_64-*-* } } */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "libgccjit.h"
+
+/* We don't want set_options() in harness.h to set -O3 to see that the restrict
+ attribute affects the optimizations. */
+#define TEST_ESCHEWS_SET_OPTIONS
+static void set_options (gcc_jit_context *ctxt, const char *argv0)
+{
+ // Set "-O3".
+ gcc_jit_context_set_int_option(ctxt, GCC_JIT_INT_OPTION_OPTIMIZATION_LEVEL, 3);
+}
+
+#define TEST_COMPILING_TO_FILE
+#define OUTPUT_KIND GCC_JIT_OUTPUT_KIND_ASSEMBLER
+#define OUTPUT_FILENAME "output-of-test-restrict.c.s"
+#include "harness.h"
+
+void
+create_code (gcc_jit_context *ctxt, void *user_data)
+{
+ /* Let's try to inject the equivalent of:
+void t(int *__restrict__ a, int *__restrict__ b, char *__restrict__ c) {
+ *a += *c;
+ *b += *c;
+}
+ */
+ gcc_jit_type *int_type =
+ gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
+ gcc_jit_type *pint_type = gcc_jit_type_get_pointer(int_type);
+ gcc_jit_type *pint_restrict_type = gcc_jit_type_get_restrict(pint_type);
+
+ gcc_jit_type *void_type =
+ gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
+
+ gcc_jit_param *a =
+ gcc_jit_context_new_param (ctxt, NULL, pint_restrict_type, "a");
+ gcc_jit_param *b =
+ gcc_jit_context_new_param (ctxt, NULL, pint_restrict_type, "b");
+ gcc_jit_param *c =
+ gcc_jit_context_new_param (ctxt, NULL, pint_restrict_type, "c");
+ gcc_jit_param *params[3] = {a, b, c};
+
+ gcc_jit_function *func_t =
+ gcc_jit_context_new_function (ctxt, NULL,
+ GCC_JIT_FUNCTION_EXPORTED,
+ void_type,
+ "t",
+ 3, params,
+ 0);
+
+ gcc_jit_block *block = gcc_jit_function_new_block (func_t, NULL);
+
+ /* *a += *c; */
+ gcc_jit_block_add_assignment_op (
+ block, NULL,
+ gcc_jit_rvalue_dereference (gcc_jit_param_as_rvalue (a), NULL),
+ GCC_JIT_BINARY_OP_PLUS,
+ gcc_jit_lvalue_as_rvalue (
+ gcc_jit_rvalue_dereference (gcc_jit_param_as_rvalue (c), NULL)));
+ /* *b += *c; */
+ gcc_jit_block_add_assignment_op (
+ block, NULL,
+ gcc_jit_rvalue_dereference (gcc_jit_param_as_rvalue (b), NULL),
+ GCC_JIT_BINARY_OP_PLUS,
+ gcc_jit_lvalue_as_rvalue (
+ gcc_jit_rvalue_dereference (gcc_jit_param_as_rvalue (c), NULL)));
+
+ gcc_jit_block_end_with_void_return (block, NULL);
+}
+
+/* { dg-final { jit-verify-output-file-was-created "" } } */
+/* { dg-final { jit-verify-assembler-output "addl %eax, (%rdi)
+ addl %eax, (%rsi)" } } */
--
2.34.1
