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This patch adds an ifunc variant to use the cu instruction on arch12 CPUs. This new ifunc variant can be built if binutils support z13 vector instructions. At runtime, HWCAP_S390_VXE decides if we can use the cu21 instruction. ChangeLog: * sysdeps/s390/utf8-utf16-z9.c (__to_utf8_loop_vx_cu): Use vector and cu21 instruction. * sysdeps/s390/multiarch/utf8-utf16-z9.c: Add __to_utf8_loop_vx_cu in ifunc resolver.
51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
/* Conversion between UTF-8 and UTF-16 - multiarch s390 version.
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Copyright (C) 2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdeps/s390/utf8-utf16-z9.c>
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#include <ifunc-resolve.h>
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#undef FROM_LOOP
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#define FROM_LOOP __from_utf8_loop
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#undef TO_LOOP
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#define TO_LOOP __to_utf8_loop
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#define _SINGLE_NAME(NAME) NAME##_single
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#define SINGLE_NAME(NAME) _SINGLE_NAME(NAME)
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strong_alias (SINGLE_NAME (FROM_LOOP_DEFAULT), SINGLE_NAME (FROM_LOOP))
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strong_alias (SINGLE_NAME (TO_LOOP_DEFAULT), SINGLE_NAME (TO_LOOP))
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/* Generate ifunc'ed loop functions for FROM/TO_LOOP. */
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s390_libc_ifunc_expr (FROM_LOOP_DEFAULT, FROM_LOOP,
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(HAVE_FROM_VX && (hwcap & HWCAP_S390_VX))
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? FROM_LOOP_VX
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: (HAVE_FROM_CU && (hwcap & HWCAP_S390_ZARCH
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&& hwcap & HWCAP_S390_HIGH_GPRS
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&& hwcap & HWCAP_S390_ETF3EH))
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? FROM_LOOP_CU
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: FROM_LOOP_DEFAULT);
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s390_libc_ifunc_expr (TO_LOOP_DEFAULT, TO_LOOP,
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(HAVE_TO_VX_CU && (hwcap & HWCAP_S390_VXE))
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? TO_LOOP_VX_CU
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: (HAVE_TO_VX && (hwcap & HWCAP_S390_VX))
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? TO_LOOP_VX
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: TO_LOOP_DEFAULT);
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#include <iconv/skeleton.c>
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