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Re: [PATCH] gcc parallel make check

On 15-09-14 18:05, Jakub Jelinek wrote:
	* testsuite/ (check_p_numbers0, check_p_numbers1,
	check_p_numbers2, check_p_numbers3, check_p_numbers4,
	check_p_numbers5, check_p_numbers6, check_p_numbers,
	check_p_subdirs): New variables.
	(check_DEJAGNU_normal_targets): Use check_p_subdirs.
	(check-DEJAGNU): Rewritten so that for parallelized
	testing each job runs all the *.exp files, with
	GCC_RUNTEST_PARALLELIZE_DIR set in environment.
	* testsuite/ Regenerated.
	* testsuite/lib/libstdc++.exp (gcc_parallel_test_run_p,
	gcc_parallel_test_enable): New procedures.  If
	GCC_RUNTEST_PARALLELIZE_DIR is set in environment, override
	runtest_file_p to invoke also gcc_parallel_test_run_p.
	* testsuite/libstdc++-abi/abi.exp: Run all the tests serially
	by the first parallel runtest encountering it.  Fix up path
	of the extract_symvers script.
	* testsuite/libstdc++-xmethods/xmethods.exp: Run all the tests
	serially by the first parallel runtest encountering it.  Run
	dg-finish even in case of error.

When comparing test results of patch builds with test results of reference builds, the only differences I'm seeing are random differences in amount of 'UNSUPPORTED: prettyprinter.exp'.

This patch fixes that by ensuring that we print that unsupported message only once.

The resulting test result comparison diff is:
--- without/FAIL  2014-11-24 17:46:32.202673282 +0100
+++ with/FAIL     2014-11-25 13:45:15.636131571 +0100
 libstdc++-v3/testsuite/libstdc++.sum:UNSUPPORTED: prettyprinters.exp
-libstdc++-v3/testsuite/libstdc++.sum:UNSUPPORTED: prettyprinters.exp
-libstdc++-v3/testsuite/libstdc++.sum:UNSUPPORTED: prettyprinters.exp
-libstdc++-v3/testsuite/libstdc++.sum:UNSUPPORTED: prettyprinters.exp
-libstdc++-v3/testsuite/libstdc++.sum:UNSUPPORTED: prettyprinters.exp
 libstdc++-v3/testsuite/libstdc++.sum:UNSUPPORTED: xmethods.exp

Furthermore, the patch adds a dg-finish in case the prettyprinters.exp file is unsupported, which AFAIU is also required in that case.

Bootstrapped and reg-tested on x86_64.

OK for trunk/stage3?

- Tom

2014-11-25  Tom de Vries  <>

	* testsuite/libstdc++-prettyprinters/prettyprinters.exp: Add missing
	dg-finish.  Only print unsupported message once.
 libstdc++-v3/testsuite/libstdc++-prettyprinters/prettyprinters.exp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/libstdc++-v3/testsuite/libstdc++-prettyprinters/prettyprinters.exp b/libstdc++-v3/testsuite/libstdc++-prettyprinters/prettyprinters.exp
index a57660f..e5be5b5 100644
--- a/libstdc++-v3/testsuite/libstdc++-prettyprinters/prettyprinters.exp
+++ b/libstdc++-v3/testsuite/libstdc++-prettyprinters/prettyprinters.exp
@@ -30,7 +30,14 @@ if ![info exists ::env(GUALITY_GDB_NAME)] {
 if {! [gdb_version_check]} {
+    dg-finish
+    # Only print unsupported message in one instance.
+    if ![gcc_parallel_test_run_p prettyprinters] {
+	return
+    }
+    gcc_parallel_test_enable 0
     unsupported "prettyprinters.exp"
+    gcc_parallel_test_enable 1

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