From: Julian Brown <julian@codesourcery.com>
Date: Wed, 11 Sep 2019 20:22:03 +0000 (-0700)
Subject: Fix OpenACC "ephemeral" asynchronous host-to-device copies
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=85626d15545773fa967378c235ca19ec93efba4a;p=thirdparty%2Fgcc.git

Fix OpenACC "ephemeral" asynchronous host-to-device copies

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/deep-copy-10.c (main): Fix
	async-safety issue. Increase number of iterations.
---

diff --git a/libgomp/ChangeLog.omp b/libgomp/ChangeLog.omp
index 6ac1b743ccf9..dc2e88937564 100644
--- a/libgomp/ChangeLog.omp
+++ b/libgomp/ChangeLog.omp
@@ -1,3 +1,9 @@
+2019-09-17  Julian Brown  <julian@codesourcery.com>
+	    Kwok Cheung Yeung  <kcy@codesourcery.com>
+
+	* testsuite/libgomp.oacc-c-c++-common/deep-copy-10.c (main): Fix
+	async-safety issue. Increase number of iterations.
+
 2021-04-07  Kwok Cheung Yeung  <kcy@codesourcery.com>
 
 	* oacc-mem.c (goacc_enter_data_internal): Unlock mutex before calling
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/deep-copy-10.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/deep-copy-10.c
index 573a8214bf01..dadb6d37942f 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/deep-copy-10.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/deep-copy-10.c
@@ -1,6 +1,8 @@
 #include <stdlib.h>
 
-/* Test asyncronous attach and detach operation.  */
+#define ITERATIONS 1023
+
+/* Test asynchronous attach and detach operation.  */
 
 typedef struct {
   int *a;
@@ -25,13 +27,13 @@ main (int argc, char* argv[])
 
 #pragma acc enter data copyin(m)
 
-  for (int i = 0; i < 99; i++)
+  for (int i = 0; i < ITERATIONS; i++)
     {
       int j;
-#pragma acc parallel loop copy(m.a[0:N]) async(i % 2)
+#pragma acc parallel loop copy(m.a[0:N]) async(0)
       for (j = 0; j < N; j++)
 	m.a[j]++;
-#pragma acc parallel loop copy(m.b[0:N]) async((i + 1) % 2)
+#pragma acc parallel loop copy(m.b[0:N]) async(1)
       for (j = 0; j < N; j++)
 	m.b[j]++;
     }
@@ -40,9 +42,9 @@ main (int argc, char* argv[])
 
   for (i = 0; i < N; i++)
     {
-      if (m.a[i] != 99)
+      if (m.a[i] != ITERATIONS)
 	abort ();
-      if (m.b[i] != 99)
+      if (m.b[i] != ITERATIONS)
 	abort ();
     }