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[nvptx] Don't emit barriers for empty loops -- test-cases 

Add test-cases for PR85381.

2019-01-12  Tom de Vries  <tdevries@suse.de>

	PR target/85381
	* testsuite/libgomp.oacc-c-c++-common/pr85381-5.c: New test.
	* testsuite/libgomp.oacc-c-c++-common/pr85381.c: New test.

From-SVN: r267893
This commit is contained in:
Tom de Vries 2019-01-12 22:18:39 +00:00 committed by Tom de Vries
parent 2cb7a501ab
commit b39e4366a2
3 changed files with 48 additions and 0 deletions
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6
libgomp/ChangeLog
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2019-01-12 Tom de Vries <tdevries@suse.de>
PR target/85381
* testsuite/libgomp.oacc-c-c++-common/pr85381-5.c: New test.
* testsuite/libgomp.oacc-c-c++-common/pr85381.c: New test.
2019-01-12 Tom de Vries <tdevries@suse.de>
* testsuite/libgomp.oacc-c-c++-common/vred2d-128.c: New test.

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libgomp/testsuite/libgomp.oacc-c-c++-common/pr85381-5.c Normal file
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/* { dg-additional-options "-save-temps" } */
/* { dg-do run { target openacc_nvidia_accel_selected } }
{ dg-skip-if "" { *-*-* } { "*" } { "-O2" } } */
#define n 1024
int
main (void)
{
#pragma acc parallel vector_length(128)
{
#pragma acc loop vector
for (int i = 0; i < n; i++)
;
#pragma acc loop vector
for (int i = 0; i < n; i++)
;
}
return 0;
}
/* { dg-final { scan-assembler-not "bar.sync" } } */

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libgomp/testsuite/libgomp.oacc-c-c++-common/pr85381.c Normal file
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/* { dg-additional-options "-save-temps" } */
/* { dg-do run { target openacc_nvidia_accel_selected } }
{ dg-skip-if "" { *-*-* } { "*" } { "-O2" } } */
int
main (void)
{
int v1;
#pragma acc parallel vector_length (128)
#pragma acc loop vector
for (v1 = 0; v1 < 20; v1 += 2)
;
return 0;
}
/* { dg-final { scan-assembler-not "bar.sync" } } */