* [PATCH] testsuite: Tweak gcc.dg/attr-aligned.c for CRIS
@ 2023-02-16 20:05 Hans-Peter Nilsson
2023-02-28 1:54 ` Ping: " Hans-Peter Nilsson
0 siblings, 1 reply; 3+ messages in thread
From: Hans-Peter Nilsson @ 2023-02-16 20:05 UTC (permalink / raw)
To: gcc-patches, msebor
Asking for the lines outside the "#if __CRIS__" part.
Ok to commit?
-- >8 --
tm.texi says for BIGGEST_ALIGNMENT (from which
__BIGGEST_ALIGNMENT__ is derived): "Biggest alignment that
any data type can require on this machine, in bits."
That is, using that value might be too strict for alignment
of *functions* and CRIS requires at least 16-bit alignment
for functions. But, one purpose of the test is to test that
alignment can be set to a large but valid value, so pick
512, which has some use as a historically required alignment
for certain I/O descriptors.
* gcc.dg/attr-aligned.c: Adjust comment for ALIGN_MAX_STATIC.
(ALIGN_MAX_STATIC): Set to 512 for CRIS.
---
gcc/testsuite/gcc.dg/attr-aligned.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/gcc/testsuite/gcc.dg/attr-aligned.c b/gcc/testsuite/gcc.dg/attr-aligned.c
index 887bdd0f3799..4f0c885dc812 100644
--- a/gcc/testsuite/gcc.dg/attr-aligned.c
+++ b/gcc/testsuite/gcc.dg/attr-aligned.c
@@ -18,6 +18,10 @@
# else
# define ALIGN_MAX_STATIC ALIGN_MAX_HARD
# endif
+#elif __CRIS__
+/* __BIGGEST_ALIGNMENT__ doesn't cover functions (16 bits for CRIS). */
+# define ALIGN_MAX_STATIC 512
+# define ALIGN_TOO_BIG_OFILE (ALIGN_MAX_HARD << 1)
#elif pdp11
# define ALIGN_MAX_STATIC 2
/* Work around a pdp11 ICE (see PR target/87821). */
@@ -29,7 +33,9 @@
/* Is this processor- or operating-system specific? */
# define ALIGN_MAX_STATIC ALIGN_MAX_HARD
#else
- /* Guaranteed to be accepted regardless of the target. */
+ /* Guaranteed to be accepted regardless of the target for objects.
+ This might not be true for alignment of functions though, so
+ may need to be set to a target-specific value above. */
# define ALIGN_MAX_STATIC __BIGGEST_ALIGNMENT__
/* Guaranteed to be rejected regardless of the target. */
# define ALIGN_TOO_BIG_OFILE (ALIGN_MAX_HARD << 1)
--
2.30.2
^ permalink raw reply [flat|nested] 3+ messages in thread
* Ping: [PATCH] testsuite: Tweak gcc.dg/attr-aligned.c for CRIS
2023-02-16 20:05 [PATCH] testsuite: Tweak gcc.dg/attr-aligned.c for CRIS Hans-Peter Nilsson
@ 2023-02-28 1:54 ` Hans-Peter Nilsson
2023-03-02 18:10 ` Mike Stump
0 siblings, 1 reply; 3+ messages in thread
From: Hans-Peter Nilsson @ 2023-02-28 1:54 UTC (permalink / raw)
To: gcc-patches; +Cc: msebor
Ping...
> From: Hans-Peter Nilsson <hp@axis.com>
> Date: Thu, 16 Feb 2023 21:05:29 +0100
> Asking for the lines outside the "#if __CRIS__" part.
> Ok to commit?
>
> -- >8 --
> tm.texi says for BIGGEST_ALIGNMENT (from which
> __BIGGEST_ALIGNMENT__ is derived): "Biggest alignment that
> any data type can require on this machine, in bits."
>
> That is, using that value might be too strict for alignment
> of *functions* and CRIS requires at least 16-bit alignment
> for functions. But, one purpose of the test is to test that
> alignment can be set to a large but valid value, so pick
> 512, which has some use as a historically required alignment
> for certain I/O descriptors.
>
> * gcc.dg/attr-aligned.c: Adjust comment for ALIGN_MAX_STATIC.
> (ALIGN_MAX_STATIC): Set to 512 for CRIS.
> ---
> gcc/testsuite/gcc.dg/attr-aligned.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/gcc/testsuite/gcc.dg/attr-aligned.c b/gcc/testsuite/gcc.dg/attr-aligned.c
> index 887bdd0f3799..4f0c885dc812 100644
> --- a/gcc/testsuite/gcc.dg/attr-aligned.c
> +++ b/gcc/testsuite/gcc.dg/attr-aligned.c
> @@ -18,6 +18,10 @@
> # else
> # define ALIGN_MAX_STATIC ALIGN_MAX_HARD
> # endif
> +#elif __CRIS__
> +/* __BIGGEST_ALIGNMENT__ doesn't cover functions (16 bits for CRIS). */
> +# define ALIGN_MAX_STATIC 512
> +# define ALIGN_TOO_BIG_OFILE (ALIGN_MAX_HARD << 1)
> #elif pdp11
> # define ALIGN_MAX_STATIC 2
> /* Work around a pdp11 ICE (see PR target/87821). */
> @@ -29,7 +33,9 @@
> /* Is this processor- or operating-system specific? */
> # define ALIGN_MAX_STATIC ALIGN_MAX_HARD
> #else
> - /* Guaranteed to be accepted regardless of the target. */
> + /* Guaranteed to be accepted regardless of the target for objects.
> + This might not be true for alignment of functions though, so
> + may need to be set to a target-specific value above. */
> # define ALIGN_MAX_STATIC __BIGGEST_ALIGNMENT__
> /* Guaranteed to be rejected regardless of the target. */
> # define ALIGN_TOO_BIG_OFILE (ALIGN_MAX_HARD << 1)
> --
> 2.30.2
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Ping: [PATCH] testsuite: Tweak gcc.dg/attr-aligned.c for CRIS
2023-02-28 1:54 ` Ping: " Hans-Peter Nilsson
@ 2023-03-02 18:10 ` Mike Stump
0 siblings, 0 replies; 3+ messages in thread
From: Mike Stump @ 2023-03-02 18:10 UTC (permalink / raw)
To: Hans-Peter Nilsson; +Cc: gcc-patches, msebor
On Feb 27, 2023, at 5:54 PM, Hans-Peter Nilsson via Gcc-patches <gcc-patches@gcc.gnu.org> wrote:
>
> Ping...
Ok.
>
>> From: Hans-Peter Nilsson <hp@axis.com>
>> Date: Thu, 16 Feb 2023 21:05:29 +0100
>
>> Asking for the lines outside the "#if __CRIS__" part.
>> Ok to commit?
>>
>> -- >8 --
>> tm.texi says for BIGGEST_ALIGNMENT (from which
>> __BIGGEST_ALIGNMENT__ is derived): "Biggest alignment that
>> any data type can require on this machine, in bits."
>>
>> That is, using that value might be too strict for alignment
>> of *functions* and CRIS requires at least 16-bit alignment
>> for functions. But, one purpose of the test is to test that
>> alignment can be set to a large but valid value, so pick
>> 512, which has some use as a historically required alignment
>> for certain I/O descriptors.
>>
>> * gcc.dg/attr-aligned.c: Adjust comment for ALIGN_MAX_STATIC.
>> (ALIGN_MAX_STATIC): Set to 512 for CRIS.
>> ---
>> gcc/testsuite/gcc.dg/attr-aligned.c | 8 +++++++-
>> 1 file changed, 7 insertions(+), 1 deletion(-)
>>
>> diff --git a/gcc/testsuite/gcc.dg/attr-aligned.c b/gcc/testsuite/gcc.dg/attr-aligned.c
>> index 887bdd0f3799..4f0c885dc812 100644
>> --- a/gcc/testsuite/gcc.dg/attr-aligned.c
>> +++ b/gcc/testsuite/gcc.dg/attr-aligned.c
>> @@ -18,6 +18,10 @@
>> # else
>> # define ALIGN_MAX_STATIC ALIGN_MAX_HARD
>> # endif
>> +#elif __CRIS__
>> +/* __BIGGEST_ALIGNMENT__ doesn't cover functions (16 bits for CRIS). */
>> +# define ALIGN_MAX_STATIC 512
>> +# define ALIGN_TOO_BIG_OFILE (ALIGN_MAX_HARD << 1)
>> #elif pdp11
>> # define ALIGN_MAX_STATIC 2
>> /* Work around a pdp11 ICE (see PR target/87821). */
>> @@ -29,7 +33,9 @@
>> /* Is this processor- or operating-system specific? */
>> # define ALIGN_MAX_STATIC ALIGN_MAX_HARD
>> #else
>> - /* Guaranteed to be accepted regardless of the target. */
>> + /* Guaranteed to be accepted regardless of the target for objects.
>> + This might not be true for alignment of functions though, so
>> + may need to be set to a target-specific value above. */
>> # define ALIGN_MAX_STATIC __BIGGEST_ALIGNMENT__
>> /* Guaranteed to be rejected regardless of the target. */
>> # define ALIGN_TOO_BIG_OFILE (ALIGN_MAX_HARD << 1)
>> --
>> 2.30.2
>>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2023-02-16 20:05 [PATCH] testsuite: Tweak gcc.dg/attr-aligned.c for CRIS Hans-Peter Nilsson
2023-02-28 1:54 ` Ping: " Hans-Peter Nilsson
2023-03-02 18:10 ` Mike Stump
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