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-rw-r--r--sysdeps/s390/configure8
-rw-r--r--sysdeps/s390/configure.ac8
-rw-r--r--sysdeps/s390/memmove.c2
-rw-r--r--sysdeps/s390/multiarch/ifunc-impl-list.c3
4 files changed, 15 insertions, 6 deletions
diff --git a/sysdeps/s390/configure b/sysdeps/s390/configure
index 5f98640..7eaefba 100644
--- a/sysdeps/s390/configure
+++ b/sysdeps/s390/configure
@@ -123,7 +123,9 @@ void testinsn (char *buf)
__asm__ (".machine \"arch13\" \n\t"
".machinemode \"zarch_nohighgprs\" \n\t"
"lghi %%r0,16 \n\t"
- "mvcrl 0(%0),32(%0)" : : "a" (buf) : "memory", "r0");
+ "mvcrl 0(%0),32(%0) \n\t"
+ "vstrs %%v20,%%v20,%%v20,%%v20,0,2"
+ : : "a" (buf) : "memory", "r0");
}
EOF
if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
@@ -271,7 +273,9 @@ else
void testinsn (char *buf)
{
__asm__ ("lghi %%r0,16 \n\t"
- "mvcrl 0(%0),32(%0)" : : "a" (buf) : "memory", "r0");
+ "mvcrl 0(%0),32(%0) \n\t"
+ "vstrs %%v20,%%v20,%%v20,%%v20,0,2"
+ : : "a" (buf) : "memory", "r0");
}
EOF
if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
diff --git a/sysdeps/s390/configure.ac b/sysdeps/s390/configure.ac
index dfe007a..e6df624 100644
--- a/sysdeps/s390/configure.ac
+++ b/sysdeps/s390/configure.ac
@@ -88,7 +88,9 @@ void testinsn (char *buf)
__asm__ (".machine \"arch13\" \n\t"
".machinemode \"zarch_nohighgprs\" \n\t"
"lghi %%r0,16 \n\t"
- "mvcrl 0(%0),32(%0)" : : "a" (buf) : "memory", "r0");
+ "mvcrl 0(%0),32(%0) \n\t"
+ "vstrs %%v20,%%v20,%%v20,%%v20,0,2"
+ : : "a" (buf) : "memory", "r0");
}
EOF
dnl test, if assembler supports S390 arch13 instructions
@@ -195,7 +197,9 @@ cat > conftest.c <<\EOF
void testinsn (char *buf)
{
__asm__ ("lghi %%r0,16 \n\t"
- "mvcrl 0(%0),32(%0)" : : "a" (buf) : "memory", "r0");
+ "mvcrl 0(%0),32(%0) \n\t"
+ "vstrs %%v20,%%v20,%%v20,%%v20,0,2"
+ : : "a" (buf) : "memory", "r0");
}
EOF
dnl test, if assembler supports S390 arch13 zarch instructions as default
diff --git a/sysdeps/s390/memmove.c b/sysdeps/s390/memmove.c
index f88ea79..1a7d336 100644
--- a/sysdeps/s390/memmove.c
+++ b/sysdeps/s390/memmove.c
@@ -43,7 +43,7 @@ extern __typeof (__redirect_memmove) MEMMOVE_ARCH13 attribute_hidden;
s390_libc_ifunc_expr (__redirect_memmove, memmove,
({
s390_libc_ifunc_expr_stfle_init ();
- (HAVE_MEMMOVE_ARCH13
+ (HAVE_MEMMOVE_ARCH13 && (hwcap & HWCAP_S390_VXRS_EXT2)
&& S390_IS_ARCH13_MIE3 (stfle_bits))
? MEMMOVE_ARCH13
: (HAVE_MEMMOVE_Z13 && (hwcap & HWCAP_S390_VX))
diff --git a/sysdeps/s390/multiarch/ifunc-impl-list.c b/sysdeps/s390/multiarch/ifunc-impl-list.c
index 4b170e4..2ef38b7 100644
--- a/sysdeps/s390/multiarch/ifunc-impl-list.c
+++ b/sysdeps/s390/multiarch/ifunc-impl-list.c
@@ -171,7 +171,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL (i, name, memmove,
# if HAVE_MEMMOVE_ARCH13
IFUNC_IMPL_ADD (array, i, memmove,
- S390_IS_ARCH13_MIE3 (stfle_bits),
+ ((dl_hwcap & HWCAP_S390_VXRS_EXT2)
+ && S390_IS_ARCH13_MIE3 (stfle_bits)),
MEMMOVE_ARCH13)
# endif
# if HAVE_MEMMOVE_Z13