* [PATCH] testsuite/arm: Fix scan-assembler-times in pr96770.c with movt/movw
@ 2021-03-29 9:01 Christophe Lyon
2021-04-06 12:02 ` Christophe Lyon
2021-04-16 17:51 ` Richard Sandiford
0 siblings, 2 replies; 4+ messages in thread
From: Christophe Lyon @ 2021-03-29 9:01 UTC (permalink / raw)
To: gcc-patches
The previous change to this testcase missed the fact that the data may
be accessed via an anchor, depending on the optimization level,
leading to false failures.
This patch restricts matching to upper16:lower16 followed by
non-spaces, followed by +4 (in f4) or +320 (in f5).
Using '.*' instead of '[^ \]' would match accross the whole assembly
file, which is not what we want, hence the limitation with spaces.
2021-03-29 Christophe Lyon <christophe.lyon@linaro.org>
gcc/testsuite/
PR target/96770
* gcc.target/arm/pure-code/pr96770.c: Fix scan-assembler-times
with movt/movw.
---
gcc/testsuite/gcc.target/arm/pure-code/pr96770.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c b/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c
index ae1bd10..3c69614 100644
--- a/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c
+++ b/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c
@@ -4,12 +4,13 @@
int arr[1000];
int *f4 (void) { return &arr[1]; }
-/* For cortex-m0 (thumb-1/v6m), we generate 4 movs with upper/lower:#arr+4. */
+/* For cortex-m0 (thumb-1/v6m), we generate 2 pairs of movs/adds with upper/lower:#arr+4. */
/* { dg-final { scan-assembler-times "arr\\+4" 4 { target { { ! arm_thumb1_movt_ok } && { ! arm_thumb2_ok } } } } } */
/* For cortex-m with movt/movw (thumb-1/v8m.base or thumb-2), we
- generate a movt/movw pair with upper/lower:#arr+4. */
-/* { dg-final { scan-assembler-times "arr\\+4" 2 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
+ generate a movt/movw pair with upper/lower:#arr+4 possibly via an anchor. */
+/* { dg-final { scan-assembler-times "upper16:\[^ \]+.\\+4" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
+/* { dg-final { scan-assembler-times "lower16:\[^ \]+\\+4" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
int *f5 (void) { return &arr[80]; }
@@ -17,5 +18,6 @@ int *f5 (void) { return &arr[80]; }
/* { dg-final { scan-assembler-times "arr\\+320" 1 { target { { ! arm_thumb1_movt_ok } && { ! arm_thumb2_ok } } } } } */
/* For cortex-m with movt/movw (thumb-1/v8m.base or thumb-2), we
- generate a movt/movw pair with upper/lower:arr+320. */
-/* { dg-final { scan-assembler-times "arr\\+320" 2 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
+ generate a movt/movw pair with upper/lower:arr+320 possibly via an anchor. */
+/* { dg-final { scan-assembler-times "upper16:\[^ \]+\\+320" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
+/* { dg-final { scan-assembler-times "lower16:\[^ \]+\\+320" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
--
2.7.4
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] testsuite/arm: Fix scan-assembler-times in pr96770.c with movt/movw
2021-03-29 9:01 [PATCH] testsuite/arm: Fix scan-assembler-times in pr96770.c with movt/movw Christophe Lyon
@ 2021-04-06 12:02 ` Christophe Lyon
2021-04-12 8:34 ` Christophe Lyon
2021-04-16 17:51 ` Richard Sandiford
1 sibling, 1 reply; 4+ messages in thread
From: Christophe Lyon @ 2021-04-06 12:02 UTC (permalink / raw)
To: gcc Patches
ping?
On Mon, 29 Mar 2021 at 11:01, Christophe Lyon
<christophe.lyon@linaro.org> wrote:
>
> The previous change to this testcase missed the fact that the data may
> be accessed via an anchor, depending on the optimization level,
> leading to false failures.
>
> This patch restricts matching to upper16:lower16 followed by
> non-spaces, followed by +4 (in f4) or +320 (in f5).
>
> Using '.*' instead of '[^ \]' would match accross the whole assembly
> file, which is not what we want, hence the limitation with spaces.
>
> 2021-03-29 Christophe Lyon <christophe.lyon@linaro.org>
>
> gcc/testsuite/
> PR target/96770
> * gcc.target/arm/pure-code/pr96770.c: Fix scan-assembler-times
> with movt/movw.
> ---
> gcc/testsuite/gcc.target/arm/pure-code/pr96770.c | 12 +++++++-----
> 1 file changed, 7 insertions(+), 5 deletions(-)
>
> diff --git a/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c b/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c
> index ae1bd10..3c69614 100644
> --- a/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c
> +++ b/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c
> @@ -4,12 +4,13 @@
> int arr[1000];
> int *f4 (void) { return &arr[1]; }
>
> -/* For cortex-m0 (thumb-1/v6m), we generate 4 movs with upper/lower:#arr+4. */
> +/* For cortex-m0 (thumb-1/v6m), we generate 2 pairs of movs/adds with upper/lower:#arr+4. */
> /* { dg-final { scan-assembler-times "arr\\+4" 4 { target { { ! arm_thumb1_movt_ok } && { ! arm_thumb2_ok } } } } } */
>
> /* For cortex-m with movt/movw (thumb-1/v8m.base or thumb-2), we
> - generate a movt/movw pair with upper/lower:#arr+4. */
> -/* { dg-final { scan-assembler-times "arr\\+4" 2 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> + generate a movt/movw pair with upper/lower:#arr+4 possibly via an anchor. */
> +/* { dg-final { scan-assembler-times "upper16:\[^ \]+.\\+4" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> +/* { dg-final { scan-assembler-times "lower16:\[^ \]+\\+4" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
>
> int *f5 (void) { return &arr[80]; }
>
> @@ -17,5 +18,6 @@ int *f5 (void) { return &arr[80]; }
> /* { dg-final { scan-assembler-times "arr\\+320" 1 { target { { ! arm_thumb1_movt_ok } && { ! arm_thumb2_ok } } } } } */
>
> /* For cortex-m with movt/movw (thumb-1/v8m.base or thumb-2), we
> - generate a movt/movw pair with upper/lower:arr+320. */
> -/* { dg-final { scan-assembler-times "arr\\+320" 2 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> + generate a movt/movw pair with upper/lower:arr+320 possibly via an anchor. */
> +/* { dg-final { scan-assembler-times "upper16:\[^ \]+\\+320" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> +/* { dg-final { scan-assembler-times "lower16:\[^ \]+\\+320" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> --
> 2.7.4
>
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] testsuite/arm: Fix scan-assembler-times in pr96770.c with movt/movw
2021-04-06 12:02 ` Christophe Lyon
@ 2021-04-12 8:34 ` Christophe Lyon
0 siblings, 0 replies; 4+ messages in thread
From: Christophe Lyon @ 2021-04-12 8:34 UTC (permalink / raw)
To: gcc Patches; +Cc: Richard Earnshaw, Richard Sandiford
ping?
On Tue, 6 Apr 2021 at 14:02, Christophe Lyon <christophe.lyon@linaro.org> wrote:
>
> ping?
>
> On Mon, 29 Mar 2021 at 11:01, Christophe Lyon
> <christophe.lyon@linaro.org> wrote:
> >
> > The previous change to this testcase missed the fact that the data may
> > be accessed via an anchor, depending on the optimization level,
> > leading to false failures.
> >
> > This patch restricts matching to upper16:lower16 followed by
> > non-spaces, followed by +4 (in f4) or +320 (in f5).
> >
> > Using '.*' instead of '[^ \]' would match accross the whole assembly
> > file, which is not what we want, hence the limitation with spaces.
> >
> > 2021-03-29 Christophe Lyon <christophe.lyon@linaro.org>
> >
> > gcc/testsuite/
> > PR target/96770
> > * gcc.target/arm/pure-code/pr96770.c: Fix scan-assembler-times
> > with movt/movw.
> > ---
> > gcc/testsuite/gcc.target/arm/pure-code/pr96770.c | 12 +++++++-----
> > 1 file changed, 7 insertions(+), 5 deletions(-)
> >
> > diff --git a/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c b/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c
> > index ae1bd10..3c69614 100644
> > --- a/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c
> > +++ b/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c
> > @@ -4,12 +4,13 @@
> > int arr[1000];
> > int *f4 (void) { return &arr[1]; }
> >
> > -/* For cortex-m0 (thumb-1/v6m), we generate 4 movs with upper/lower:#arr+4. */
> > +/* For cortex-m0 (thumb-1/v6m), we generate 2 pairs of movs/adds with upper/lower:#arr+4. */
> > /* { dg-final { scan-assembler-times "arr\\+4" 4 { target { { ! arm_thumb1_movt_ok } && { ! arm_thumb2_ok } } } } } */
> >
> > /* For cortex-m with movt/movw (thumb-1/v8m.base or thumb-2), we
> > - generate a movt/movw pair with upper/lower:#arr+4. */
> > -/* { dg-final { scan-assembler-times "arr\\+4" 2 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> > + generate a movt/movw pair with upper/lower:#arr+4 possibly via an anchor. */
> > +/* { dg-final { scan-assembler-times "upper16:\[^ \]+.\\+4" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> > +/* { dg-final { scan-assembler-times "lower16:\[^ \]+\\+4" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> >
> > int *f5 (void) { return &arr[80]; }
> >
> > @@ -17,5 +18,6 @@ int *f5 (void) { return &arr[80]; }
> > /* { dg-final { scan-assembler-times "arr\\+320" 1 { target { { ! arm_thumb1_movt_ok } && { ! arm_thumb2_ok } } } } } */
> >
> > /* For cortex-m with movt/movw (thumb-1/v8m.base or thumb-2), we
> > - generate a movt/movw pair with upper/lower:arr+320. */
> > -/* { dg-final { scan-assembler-times "arr\\+320" 2 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> > + generate a movt/movw pair with upper/lower:arr+320 possibly via an anchor. */
> > +/* { dg-final { scan-assembler-times "upper16:\[^ \]+\\+320" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> > +/* { dg-final { scan-assembler-times "lower16:\[^ \]+\\+320" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> > --
> > 2.7.4
> >
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] testsuite/arm: Fix scan-assembler-times in pr96770.c with movt/movw
2021-03-29 9:01 [PATCH] testsuite/arm: Fix scan-assembler-times in pr96770.c with movt/movw Christophe Lyon
2021-04-06 12:02 ` Christophe Lyon
@ 2021-04-16 17:51 ` Richard Sandiford
1 sibling, 0 replies; 4+ messages in thread
From: Richard Sandiford @ 2021-04-16 17:51 UTC (permalink / raw)
To: Christophe Lyon via Gcc-patches
Sorry the slow reply. I'm not well versed on the all AArch32 combinations
but it looks good to me.
Christophe Lyon via Gcc-patches <gcc-patches@gcc.gnu.org> writes:
> The previous change to this testcase missed the fact that the data may
> be accessed via an anchor, depending on the optimization level,
> leading to false failures.
>
> This patch restricts matching to upper16:lower16 followed by
> non-spaces, followed by +4 (in f4) or +320 (in f5).
>
> Using '.*' instead of '[^ \]' would match accross the whole assembly
> file, which is not what we want, hence the limitation with spaces.
>
> 2021-03-29 Christophe Lyon <christophe.lyon@linaro.org>
>
> gcc/testsuite/
> PR target/96770
> * gcc.target/arm/pure-code/pr96770.c: Fix scan-assembler-times
> with movt/movw.
OK, thanks.
Richard
> ---
> gcc/testsuite/gcc.target/arm/pure-code/pr96770.c | 12 +++++++-----
> 1 file changed, 7 insertions(+), 5 deletions(-)
>
> diff --git a/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c b/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c
> index ae1bd10..3c69614 100644
> --- a/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c
> +++ b/gcc/testsuite/gcc.target/arm/pure-code/pr96770.c
> @@ -4,12 +4,13 @@
> int arr[1000];
> int *f4 (void) { return &arr[1]; }
>
> -/* For cortex-m0 (thumb-1/v6m), we generate 4 movs with upper/lower:#arr+4. */
> +/* For cortex-m0 (thumb-1/v6m), we generate 2 pairs of movs/adds with upper/lower:#arr+4. */
> /* { dg-final { scan-assembler-times "arr\\+4" 4 { target { { ! arm_thumb1_movt_ok } && { ! arm_thumb2_ok } } } } } */
>
> /* For cortex-m with movt/movw (thumb-1/v8m.base or thumb-2), we
> - generate a movt/movw pair with upper/lower:#arr+4. */
> -/* { dg-final { scan-assembler-times "arr\\+4" 2 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> + generate a movt/movw pair with upper/lower:#arr+4 possibly via an anchor. */
> +/* { dg-final { scan-assembler-times "upper16:\[^ \]+.\\+4" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> +/* { dg-final { scan-assembler-times "lower16:\[^ \]+\\+4" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
>
> int *f5 (void) { return &arr[80]; }
>
> @@ -17,5 +18,6 @@ int *f5 (void) { return &arr[80]; }
> /* { dg-final { scan-assembler-times "arr\\+320" 1 { target { { ! arm_thumb1_movt_ok } && { ! arm_thumb2_ok } } } } } */
>
> /* For cortex-m with movt/movw (thumb-1/v8m.base or thumb-2), we
> - generate a movt/movw pair with upper/lower:arr+320. */
> -/* { dg-final { scan-assembler-times "arr\\+320" 2 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> + generate a movt/movw pair with upper/lower:arr+320 possibly via an anchor. */
> +/* { dg-final { scan-assembler-times "upper16:\[^ \]+\\+320" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
> +/* { dg-final { scan-assembler-times "lower16:\[^ \]+\\+320" 1 { target { arm_thumb1_movt_ok || arm_thumb2_ok } } } } */
^ permalink raw reply [flat|nested] 4+ messages in thread
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2021-03-29 9:01 [PATCH] testsuite/arm: Fix scan-assembler-times in pr96770.c with movt/movw Christophe Lyon
2021-04-06 12:02 ` Christophe Lyon
2021-04-12 8:34 ` Christophe Lyon
2021-04-16 17:51 ` Richard Sandiford
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