From: Patrick Palka <ppalka@redhat.com>
Date: Wed, 24 Apr 2024 21:51:54 +0000 (-0400)
Subject: c++/modules testsuite: restrict expensive pr99023 test
X-Git-Tag: basepoints/gcc-15~28
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=26a3edbe2357cf975f345ad1b59b9f9a3444316e;p=thirdparty%2Fgcc.git

c++/modules testsuite: restrict expensive pr99023 test

The pr99023 testcase uses --param=ggc-min-expand=0 which forces a GC
during every collection point and consequently is very slow to run,
and ends up being the main bottleneck of the modules.exp testsuite.

So this patch restricts this test to run once, in C++20 mode, instead of
multiple times (C++17, C++20 and C++23 mode by default).  After this
patch the modules.exp testsuite finishes in 3m instead of 3m40s with -j8
on my machine.

gcc/testsuite/ChangeLog:

	* g++.dg/modules/pr99023_a.X: Run only in C++20 mode.
	* g++.dg/modules/pr99023_b.X: Likewise.

Reviewed-by: Jason Merrill <jason@redhat.com>
---

diff --git a/gcc/testsuite/g++.dg/modules/pr99023_a.X b/gcc/testsuite/g++.dg/modules/pr99023_a.X
index c872d15f7927..507e95695356 100644
--- a/gcc/testsuite/g++.dg/modules/pr99023_a.X
+++ b/gcc/testsuite/g++.dg/modules/pr99023_a.X
@@ -1,4 +1,5 @@
 // PR c++/99023, ICE
+// { dg-require-effective-target c++20_only }
 // { dg-additional-options {-x c++-system-header initializer_list -fmodules-ts --param ggc-min-expand=0} }
 
 // { dg-prune-output {linker input file unused} }
diff --git a/gcc/testsuite/g++.dg/modules/pr99023_b.X b/gcc/testsuite/g++.dg/modules/pr99023_b.X
index ca5f32e5bccb..59d32bee8d51 100644
--- a/gcc/testsuite/g++.dg/modules/pr99023_b.X
+++ b/gcc/testsuite/g++.dg/modules/pr99023_b.X
@@ -1,4 +1,5 @@
 // PR c++/99023, ICE
+// { dg-require-effective-target c++20_only }
 // { dg-additional-options {-x c++-system-header iostream -fmodules-ts -flang-info-include-translate=<initializer_list> --param ggc-min-expand=0} }
 
 // { dg-prune-output {linker input file unused} }