124654232c
Sync patch from openeuler/gcc (cherry picked from commit 95427adf7d16bbb61ae3ced9c64aacbaf53dce72)
38 lines
1.0 KiB
Diff
38 lines
1.0 KiB
Diff
From 7efae59159577657f22511aa3b2cebe85ca60d9d Mon Sep 17 00:00:00 2001
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From: dingguangya <dingguangya1@huawei.com>
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Date: Mon, 4 Sep 2023 16:30:58 +0800
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Subject: [PATCH 2/2] [GOMP] Enabling moutline-atomics improves libgomp
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performance in multi-thread scenarios
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Libgomp is used in multi-thread scenarios,
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Enabling moutline-atomics improves performance.
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---
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libgomp/configure.tgt | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/libgomp/configure.tgt b/libgomp/configure.tgt
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index 2cd7272fc..f924e9f98 100644
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--- a/libgomp/configure.tgt
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+++ b/libgomp/configure.tgt
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@@ -32,6 +32,17 @@ if test $gcc_cv_have_tls = yes ; then
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esac
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fi
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+# Enabling moutline-atomics improves libgomp performance in multi-thread scenarios.
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+case "${target_cpu}" in
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+ aarch64*)
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+ case "${target}" in
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+ aarch64*-*-linux*)
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+ XCFLAGS="${XCFLAGS} -moutline-atomics"
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+ ;;
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+ esac
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+ ;;
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+esac
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+
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tmake_file=
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# Since we require POSIX threads, assume a POSIX system by default.
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config_path="posix"
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--
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2.33.0
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