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Message ID 877d99lcl6.fsf@dem-tschwing-1.ger.mentorg.com
State New
Headers show
Series | expand

Commit Message

Thomas Schwinge March 4, 2022, 7:52 p.m. UTC 
Hi!

On 2022-03-04T14:46:25+0100, I wrote:
> Pushed to master branch commit 8935589b496f755e08cadf26d8ceddf0dd6e0968
> "OMP lowering: Regimplify 'OMP_CLAUSE_MAP_DECL_MAKE_ADDRESSABLE' DECLs
> [PR100280, PR104132, PR104133]", see attached.

> --- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-decompose-1.c
> +++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-decompose-1.c
> [...]
> @@ -27,8 +31,12 @@ int main()
>    (volatile int *) &a;
>  #define N 123
>    int b[N] = { 0 };
> +  unsigned long long f1;
> +  /*TODO See above.  */
> +  (volatile void *) &f1;

Ah, the famous last-minute change just before 'git push'...  To work
around execution failure with GCN offloading, we're explicitly making
'f1' addressable here -- but I didn't realize that this also affects
diagnostics, sorry.

Pushed to master branch commit 14dfbb53594e164fe222476523a68039a8bd5252
"Fix 'libgomp.oacc-c-c++-common/kernels-decompose-1.c' expected
diagnostics", see attached.


Grüße
 Thomas


>
>  #pragma acc kernels /* { dg-line l_compute[incr c_compute] } */
> +  /* { dg-note {variable 'g2\.0' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_compute$c_compute } */
>    {
> [...]
> +    /* { dg-note {beginning 'gang-single' part in OpenACC 'kernels' region} {} { target *-*-* } .+1 } */
> +      f1 = 1;
> +      /* { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } .+1 } */
> +#pragma acc loop /* { dg-line l_loop_c[incr c_loop_c] } */
> +      /* { dg-note {variable 'c' in 'private' clause is candidate for adjusting OpenACC privatization level} {} { target *-*-* } l_loop_c$c_loop_c } */
> +      /* { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_loop_c$c_loop_c } */
> +      for (c = 20; c > 0; --c)
> +     f1 *= c;
> +
> +      /* { dg-note {beginning 'parloops' part in OpenACC 'kernels' region} {} { target *-*-* } .+1 } */
> +      if (c != 234)
> +     __builtin_abort ();
> +      /* { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_compute$c_compute } */
> +    }
>    }
> [...]
> +  assert (f1 == 2432902008176640000ULL);
>
>    return 0;
>  }


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Patch

From 14dfbb53594e164fe222476523a68039a8bd5252 Mon Sep 17 00:00:00 2001
From: Thomas Schwinge <thomas@codesourcery.com>
Date: Fri, 4 Mar 2022 20:34:40 +0100
Subject: [PATCH] Fix 'libgomp.oacc-c-c++-common/kernels-decompose-1.c'
 expected diagnostics

Fix-up for recent commit 8935589b496f755e08cadf26d8ceddf0dd6e0968
"OMP lowering: Regimplify 'OMP_CLAUSE_MAP_DECL_MAKE_ADDRESSABLE' DECLs
[PR100280, PR104132, PR104133]": adjust for a GCN offloading workaround
added just before commit: '(volatile void *) &f1;'.

	PR testsuite/104791
	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/kernels-decompose-1.c: Fix
	expected diagnostics.
---
 .../testsuite/libgomp.oacc-c-c++-common/kernels-decompose-1.c   | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-decompose-1.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-decompose-1.c
index 049b3a44b03..985a547d381 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-decompose-1.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-decompose-1.c
@@ -37,6 +37,8 @@  int main()
 
 #pragma acc kernels /* { dg-line l_compute[incr c_compute] } */
   /* { dg-note {variable 'g2\.0' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_compute$c_compute } */
+  /* { dg-note {variable 'f1\.1' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_compute$c_compute } */
+  /* { dg-note {variable 'f1\.2' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_compute$c_compute } */
   {
     /* { dg-note {beginning 'gang-single' part in OpenACC 'kernels' region} {} { target *-*-* } .+1 } */
     int c = 234;
-- 
2.25.1