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8350202: Tune for Power10 CPUs on Linux ppc64le

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Reviewed-by: mdoerr
This commit is contained in:
Matthias Baesken 2025-02-18 13:20:05 +00:00
parent 885be2efa6
commit e1d0a9c832
1 changed files with 2 additions and 2 deletions
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4
make/autoconf/flags-cflags.m4
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@ -719,7 +719,7 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
elif test "x$FLAGS_CPU" = xppc64le; then
# Little endian machine uses ELFv2 ABI.
# Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI.
$1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2 -mcpu=power8 -mtune=power8"
$1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2 -mcpu=power8 -mtune=power10"
fi
elif test "x$FLAGS_CPU" = xs390x; then
$1_CFLAGS_CPU="-mbackchain -march=z10"
@ -740,7 +740,7 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
if test "x$FLAGS_CPU" = xppc64le; then
# Little endian machine uses ELFv2 ABI.
# Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI.
$1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2 -mcpu=power8 -mtune=power8"
$1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2 -mcpu=power8 -mtune=power10"
fi
fi
if test "x$OPENJDK_TARGET_OS" = xaix; then