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add --with-{cpu,arch,tune}-{32,64} as alias flags for --with-{cpu,arch,tune}

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gcc/
	* config.gcc: add configure flags --with-{cpu,arch,tune}-{32,64}
	as alias flags for --with-{cpu,arch,tune} on AArch64.
	* doc/install.texi: Document new flags for aarch64.
This commit is contained in:
Sebastian Pop 2020-11-17 18:56:15 +00:00
parent 04dedd1814
commit 61ef34c503
2 changed files with 20 additions and 2 deletions
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20
gcc/config.gcc
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@ -4083,7 +4083,25 @@ fi
supported_defaults=
case "${target}" in
aarch64*-*-*)
supported_defaults="abi cpu arch tune"
supported_defaults="abi cpu cpu_32 cpu_64 arch arch_32 arch_64 tune tune_32 tune_64"
if test x$with_cpu_64 != x && test x$with_cpu = x; then
with_cpu=$with_cpu_64
fi
if test x$with_cpu_32 != x && test x$with_cpu = x; then
with_cpu=$with_cpu_32
fi
if test x$with_arch_64 != x && test x$with_arch = x; then
with_arch=$with_arch_64
fi
if test x$with_arch_32 != x && test x$with_arch = x; then
with_arch=$with_arch_32
fi
if test x$with_tune_64 != x && test x$with_tune = x; then
with_tune=$with_tune_64
fi
if test x$with_tune_32 != x && test x$with_tune = x; then
with_tune=$with_tune_32
fi
for which in cpu arch tune; do
eval "val=\$with_$which"
base_val=`echo $val | sed -e 's/\+.*//'`

2
gcc/doc/install.texi
View File

@ -1371,7 +1371,7 @@ Specify which cpu variant the compiler should generate code for by default.
This option is only supported on some targets, including ARC, ARM, i386, M68k,
PowerPC, and SPARC@. It is mandatory for ARC@. The @option{--with-cpu-32} and
@option{--with-cpu-64} options specify separate default CPUs for
32-bit and 64-bit modes; these options are only supported for i386,
32-bit and 64-bit modes; these options are only supported for aarch64, i386,
x86-64, PowerPC, and SPARC@.
@item --with-schedule=@var{cpu}