configure.ac (gcc_cv_as_dwloc): Test support for debug frame section label reference.

* configure.ac (gcc_cv_as_dwloc): Test support for debug frame section
label reference.
* configure: Regenerate.

From-SVN: r232673

gcc/ChangeLog

+2016-01-21  David Edelsohn  <dje.gcc@gmail.com>
+
+	* configure.ac (gcc_cv_as_dwloc): Test support for debug frame section
+	label reference.
+	* configure: Regenerate.
+
 2016-01-21  Richard Biener  <rguenther@suse.de>
 
 	* graphite-optimize-isl.c (get_schedule_map): Fix typo.

gcc/configure

@@ -26615,8 +26615,8 @@ fi
 
     case $target in
       *-*-aix*)
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .ref support" >&5
-$as_echo_n "checking assembler for .ref support... " >&6; }
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for AIX .ref support" >&5
+$as_echo_n "checking assembler for AIX .ref support... " >&6; }
 if test "${gcc_cv_as_aix_ref+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
@@ -26655,12 +26655,9 @@ $as_echo "#define HAVE_AS_REF 1" >>confdefs.h
 
 fi
 	;;
-    esac
 
-    case $target in
-      *-*-aix*)
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for dwarf location lists section support" >&5
-$as_echo_n "checking assembler for dwarf location lists section support... " >&6; }
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for AIX DWARF location lists section support" >&5
+$as_echo_n "checking assembler for AIX DWARF location lists section support... " >&6; }
 if test "${gcc_cv_as_aix_dwloc+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
@@ -26670,7 +26667,9 @@ else
   then gcc_cv_as_aix_dwloc=yes
 fi
   elif test x$gcc_cv_as != x; then
-    $as_echo '	.dwsect 0xB0000
+    $as_echo '	.dwsect 0xA0000
+	Lframe..0:
+		.vbyte 4,Lframe..0:
 	  ' > conftest.s
     if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5

gcc/configure.ac

@@ -4396,7 +4396,7 @@ LCF0:
 
     case $target in
       *-*-aix*)
-	gcc_GAS_CHECK_FEATURE([.ref support],
+	gcc_GAS_CHECK_FEATURE([AIX .ref support],
 	  gcc_cv_as_aix_ref, [2,21,0],,
 	  [	.csect stuff[[rw]]
 	     stuff:
@@ -4407,16 +4407,15 @@ LCF0:
 	  [AC_DEFINE(HAVE_AS_REF, 1,
 	    [Define if your assembler supports .ref])])
 	;;
-    esac
 
-    case $target in
-      *-*-aix*)
-	gcc_GAS_CHECK_FEATURE([dwarf location lists section support],
+	gcc_GAS_CHECK_FEATURE([AIX DWARF location lists section support],
 	  gcc_cv_as_aix_dwloc, [2,21,0],,
-	  [	.dwsect 0xB0000
+	  [	.dwsect 0xA0000
+	Lframe..0:
+		.vbyte 4,Lframe..0:
 	  ],,
 	  [AC_DEFINE(HAVE_XCOFF_DWARF_EXTRAS, 1,
-	    [Define if your assembler supports .dwsect 0xB0000])])
+	    [Define if your assembler supports AIX debug frame section label reference.])])
 	;;
     esac
     ;;