From f0137ff31da85bc7d9bd4e621af958d8b7249475 Mon Sep 17 00:00:00 2001 From: Stefan Liebler Date: Tue, 27 Jun 2017 17:09:43 +0200 Subject: S390: Use cu24 instruction for converting from utf16 to utf32. 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 cu24 instruction. ChangeLog: * sysdeps/s390/utf16-utf32-z9.c (__from_utf16_loop_vx_cu): Use vector and cu24 instruction. * sysdeps/s390/multiarch/utf16-utf32-z9.c: Add __from_utf16_loop_vx_cu in ifunc resolver. --- sysdeps/s390/multiarch/utf16-utf32-z9.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'sysdeps/s390/multiarch/utf16-utf32-z9.c') diff --git a/sysdeps/s390/multiarch/utf16-utf32-z9.c b/sysdeps/s390/multiarch/utf16-utf32-z9.c index ded3cc2..917de5f 100644 --- a/sysdeps/s390/multiarch/utf16-utf32-z9.c +++ b/sysdeps/s390/multiarch/utf16-utf32-z9.c @@ -32,9 +32,11 @@ strong_alias (SINGLE_NAME (TO_LOOP_DEFAULT), SINGLE_NAME (TO_LOOP)) /* Generate ifunc'ed loop functions for FROM/TO_LOOP. */ s390_libc_ifunc_expr (FROM_LOOP_DEFAULT, FROM_LOOP, - (HAVE_FROM_VX && (hwcap & HWCAP_S390_VX)) - ? FROM_LOOP_VX - : FROM_LOOP_DEFAULT); + (HAVE_FROM_VX_CU && (hwcap & HWCAP_S390_VXE)) + ? FROM_LOOP_VX_CU + : (HAVE_FROM_VX && (hwcap & HWCAP_S390_VX)) + ? FROM_LOOP_VX + : FROM_LOOP_DEFAULT); s390_libc_ifunc_expr (TO_LOOP_DEFAULT, TO_LOOP, (HAVE_TO_VX_CU && (hwcap & HWCAP_S390_VXE)) -- cgit v1.1