From 2ee1bc57ab50737ee2ab88c4d796b90e08b4bf93 Mon Sep 17 00:00:00 2001
From: Stefan Liebler <stli@linux.ibm.com>
Date: Tue, 18 Dec 2018 13:57:08 +0100
Subject: S390: Add configure check to detect z13 as mininum architecture level
 set.

Add a configure check for z13 in the same way as done for z196.

ChangeLog:

	* config.h.in (HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT): New undefine.
	* sysdeps/s390/configure.ac: Add check for z13 support.
	* sysdeps/s390/configure: Regenerated.
---
 sysdeps/s390/configure.ac | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'sysdeps/s390/configure.ac')

diff --git a/sysdeps/s390/configure.ac b/sysdeps/s390/configure.ac
index 981f7a79dd..4dfb5574b4 100644
--- a/sysdeps/s390/configure.ac
+++ b/sysdeps/s390/configure.ac
@@ -135,5 +135,33 @@ then
   AC_DEFINE(HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT)
 fi
 
+AC_CACHE_CHECK(for S390 z13 zarch instruction support as default,
+	       libc_cv_asm_s390_min_z13_zarch, [dnl
+cat > conftest.c <<\EOF
+int testinsn (void)
+{
+    int i;
+    __asm__ ("vl %%v16,0(%%r15)\n\t"
+	     "vlgvf %0,%%v16,0"
+	     : "=d" (i) : : "memory", "v16");
+    return i;
+}
+EOF
+dnl
+dnl test, if assembler supports S390 z13 zarch instructions as default
+if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
+			-o conftest.o &> /dev/null]) ;
+then
+  libc_cv_asm_s390_min_z13_zarch=yes
+else
+  libc_cv_asm_s390_min_z13_zarch=no
+fi
+rm -f conftest* ])
+
+if test "$libc_cv_asm_s390_min_z13_zarch" = yes ;
+then
+  AC_DEFINE(HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT)
+fi
+
 test -n "$critic_missing" && AC_MSG_ERROR([
 *** $critic_missing])
-- 
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