From 0f3486ad9863e98994332c4fd63cc6a7631262f6 Mon Sep 17 00:00:00 2001 From: Amit Kumar Date: Fri, 25 Apr 2025 06:22:58 +0000 Subject: [PATCH 1/2] z10 -> z15 --- make/autoconf/flags-cflags.m4 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/make/autoconf/flags-cflags.m4 b/make/autoconf/flags-cflags.m4 index bafedddf04f5f..c6aee65f2410b 100644 --- a/make/autoconf/flags-cflags.m4 +++ b/make/autoconf/flags-cflags.m4 @@ -734,7 +734,7 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP], $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2" fi elif test "x$FLAGS_CPU" = xs390x; then - $1_CFLAGS_CPU="-mbackchain -march=z10" + $1_CFLAGS_CPU="-mbackchain -march=z13 -mtune=z15" fi if test "x$FLAGS_CPU_ARCH" != xarm && test "x$FLAGS_CPU_ARCH" != xppc; then From 31158beb56087b5d460ebc425586cc07c0cbe301 Mon Sep 17 00:00:00 2001 From: Amit Kumar Date: Fri, 16 May 2025 10:11:06 +0000 Subject: [PATCH 2/2] remove tunning --- make/autoconf/flags-cflags.m4 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/make/autoconf/flags-cflags.m4 b/make/autoconf/flags-cflags.m4 index fbabe2e6a74b7..6fe76f1fd0b98 100644 --- a/make/autoconf/flags-cflags.m4 +++ b/make/autoconf/flags-cflags.m4 @@ -742,7 +742,7 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP], $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2" fi elif test "x$FLAGS_CPU" = xs390x; then - $1_CFLAGS_CPU="-mbackchain -march=z13 -mtune=z15" + $1_CFLAGS_CPU="-mbackchain -march=z13" fi if test "x$FLAGS_CPU_ARCH" != xarm && test "x$FLAGS_CPU_ARCH" != xppc; then