Disable use of FMA instructions in branred

(cherry picked from commit 7998fa7899a29803ad4512002636332dfee48451)

14 files changed, 594 insertions, 156 deletions

diff --git a/ChangeLog b/ChangeLog
index 42d089685a..09822ca96a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -28,6 +28,22 @@
 	* sysdeps/i386/i686/multiarch/test-multiarch.c: New file.
 	* sysdeps/x86_64/multiarch/test-multiarch.c: New file.
 
+2012-03-21  Andreas Schwab  <schwab@linux-m68k.org>
+
+	* configure.in (libc_cv_cc_nofma): Check for option to disable
+	generation of FMA instructions.
+	* configure: Regenerate.
+	* config.make.in (config-cflags-nofma): Set from libc_cv_cc_nofma.
+	* sysdeps/ieee754/dbl-64/Makefile: New file.
+	* sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines):
+	Remove brandred-fma4.
+	(CFLAGS-brandred-fma4.c): Remove.
+	* sysdeps/x86_64/fpu/multiarch/brandred-fma4.c: Remove.
+	* sysdeps/x86_64/fpu/multiarch/s_sin-fma4.c (__branred): Don't
+	define.
+	* sysdeps/x86_64/fpu/multiarch/s_tan-fma4.c (__branred): Don't
+	define.
+
 2012-02-27  David S. Miller  <davem@davemloft.net>
 
 	* sysdeps/ieee754/ldbl-128/s_nearbyintl.c (__nearbyintl): Do not
diff --git a/config.make.in b/config.make.in
index 75b9a1975f..402f766de6 100644
--- a/config.make.in
+++ b/config.make.in
@@ -38,6 +38,7 @@ config-cflags-sse4 = @libc_cv_cc_sse4@
 config-cflags-avx = @libc_cv_cc_avx@
 config-cflags-sse2avx = @libc_cv_cc_sse2avx@
 config-cflags-novzeroupper = @libc_cv_cc_novzeroupper@
+config-cflags-nofma = @libc_cv_cc_nofma@
 config-asflags-i686 = @libc_cv_as_i686@
 
 defines = @DEFINES@
diff --git a/configure b/configure
index 1d44f7d7fb..75454f67f7 100755
--- a/configure
+++ b/configure
@@ -622,6 +622,7 @@ elf
 ldd_rewrite_script
 use_ldconfig
 libc_cv_as_i686
+libc_cv_cc_nofma
 libc_cv_cc_fma4
 libc_cv_cc_novzeroupper
 libc_cv_cc_sse2avx
@@ -7329,6 +7330,26 @@ if test "$libc_cv_gcc_tls_model_attr" = no; then
   as_fn_error $? "support for the tls_model attribute is required" "$LINENO" 5
 fi
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for compiler option to disable generation of FMA instructions" >&5
+$as_echo_n "checking for compiler option to disable generation of FMA instructions... " >&6; }
+if ${libc_cv_cc_nofma+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  libc_cv_cc_nofma=
+for opt in -ffp-contract=off -mno-fused-madd; do
+  if { ac_try='${CC-cc} $opt -xc /dev/null -S -o /dev/null'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  libc_cv_cc_nofma=$opt; break
+fi
+done
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_nofma" >&5
+$as_echo "$libc_cv_cc_nofma" >&6; }
+
 if test -n "$submachine"; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for compiler option for CPU variant" >&5
 $as_echo_n "checking for compiler option for CPU variant... " >&6; }
diff --git a/configure.in b/configure.in
index 6b57c8db07..80d45f041b 100644
--- a/configure.in
+++ b/configure.in
@@ -2196,6 +2196,14 @@ if test "$libc_cv_gcc_tls_model_attr" = no; then
   AC_MSG_ERROR([support for the tls_model attribute is required])
 fi
 
+dnl Determine how to disable generation of FMA instructions.
+AC_CACHE_CHECK([for compiler option to disable generation of FMA instructions],
+	       libc_cv_cc_nofma, [dnl
+libc_cv_cc_nofma=
+for opt in -ffp-contract=off -mno-fused-madd; do
+  LIBC_TRY_CC_OPTION([$opt], [libc_cv_cc_nofma=$opt; break])
+done])
+
 if test -n "$submachine"; then
   AC_CACHE_CHECK([for compiler option for CPU variant],
 		 libc_cv_cc_submachine, [dnl
@@ -2340,6 +2348,7 @@ AC_SUBST(libc_cv_cc_avx)
 AC_SUBST(libc_cv_cc_sse2avx)
 AC_SUBST(libc_cv_cc_novzeroupper)
 AC_SUBST(libc_cv_cc_fma4)
+AC_SUBST(libc_cv_cc_nofma)
 AC_SUBST(libc_cv_as_i686)
 
 AC_SUBST(use_ldconfig)
diff --git a/sysdeps/ieee754/dbl-64/Makefile b/sysdeps/ieee754/dbl-64/Makefile
new file mode 100644
index 0000000000..1a7b31158d
--- /dev/null
+++ b/sysdeps/ieee754/dbl-64/Makefile
@@ -0,0 +1,4 @@
+ifeq ($(subdir),math)
+# branred depends on precise IEEE double rounding
+CFLAGS-branred.c = $(config-cflags-nofma)
+endif
diff --git a/sysdeps/ieee754/ldbl-opt/configure b/sysdeps/ieee754/ldbl-opt/configure
index 065a3c8364..d1f3177cfd 100644
--- a/sysdeps/ieee754/ldbl-opt/configure
+++ b/sysdeps/ieee754/ldbl-opt/configure
@@ -1,19 +1,135 @@
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/ieee754/ldbl-opt/.
 
 
-{ $as_echo "$as_me:$LINENO: checking whether $CC $CFLAGS supports -mlong-double-128" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC $CFLAGS supports -mlong-double-128" >&5
 $as_echo_n "checking whether $CC $CFLAGS supports -mlong-double-128... " >&6; }
-if test "${libc_cv_mlong_double_128+set}" = set; then
+if ${libc_cv_mlong_double_128+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   save_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS -mlong-double-128"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -28,39 +144,16 @@ long double foobar (long double x) { return x; }
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   libc_cv_mlong_double_128=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	libc_cv_mlong_double_128=no
+  libc_cv_mlong_double_128=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 CFLAGS="$save_CFLAGS"
 fi
-{ $as_echo "$as_me:$LINENO: result: $libc_cv_mlong_double_128" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mlong_double_128" >&5
 $as_echo "$libc_cv_mlong_double_128" >&6; }
 if test "$libc_cv_mlong_double_128" = no; then
-  { { $as_echo "$as_me:$LINENO: error: this configuration requires -mlong-double-128 support" >&5
-$as_echo "$as_me: error: this configuration requires -mlong-double-128 support" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "this configuration requires -mlong-double-128 support" "$LINENO" 5
 fi
diff --git a/sysdeps/powerpc/configure b/sysdeps/powerpc/configure
index b347754f35..c3ad67f012 100644
--- a/sysdeps/powerpc/configure
+++ b/sysdeps/powerpc/configure
@@ -1,10 +1,92 @@
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/powerpc.
 
 # Accept binutils which knows about ".machine".
-{ $as_echo "$as_me:$LINENO: checking for .machine support" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for .machine support" >&5
 $as_echo_n "checking for .machine support... " >&6; }
-if test "${libc_cv_ppc_machine+set}" = set; then
+if ${libc_cv_ppc_machine+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.s <<\EOF
@@ -12,27 +94,22 @@ else
 	blr
 EOF
 if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
   libc_cv_ppc_machine=yes
 else
   libc_cv_ppc_machine=no
 fi
 rm -f conftest*
 fi
-{ $as_echo "$as_me:$LINENO: result: $libc_cv_ppc_machine" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ppc_machine" >&5
 $as_echo "$libc_cv_ppc_machine" >&6; }
 if test $libc_cv_ppc_machine != yes; then
-  { { $as_echo "$as_me:$LINENO: error:
-*** A binutils version which can handle
-***    .machine \"altivec\"
-*** is needed." >&5
-$as_echo "$as_me: error:
+  as_fn_error $? "
 *** A binutils version which can handle
 ***    .machine \"altivec\"
-*** is needed." >&2;}
-   { (exit 1); exit 1; }; }
+*** is needed." "$LINENO" 5
 fi
diff --git a/sysdeps/powerpc/powerpc32/configure b/sysdeps/powerpc/powerpc32/configure
index da8ec0b87c..86ecfdcf4a 100644
--- a/sysdeps/powerpc/powerpc32/configure
+++ b/sysdeps/powerpc/powerpc32/configure
@@ -1,10 +1,92 @@
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/powerpc/powerpc32.
 
 # See whether gas has R_PPC_REL16 relocs.
-{ $as_echo "$as_me:$LINENO: checking for R_PPC_REL16 gas support" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for R_PPC_REL16 gas support" >&5
 $as_echo_n "checking for R_PPC_REL16 gas support... " >&6; }
-if test "${libc_cv_ppc_rel16+set}" = set; then
+if ${libc_cv_ppc_rel16+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.s <<\EOF
@@ -12,50 +94,46 @@ else
 	addis 11,30,_GLOBAL_OFFSET_TABLE_-.@ha
 EOF
 if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
   libc_cv_ppc_rel16=yes
 else
   libc_cv_ppc_rel16=no
 fi
 rm -f conftest*
 fi
-{ $as_echo "$as_me:$LINENO: result: $libc_cv_ppc_rel16" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ppc_rel16" >&5
 $as_echo "$libc_cv_ppc_rel16" >&6; }
 if test $libc_cv_ppc_rel16 = no; then
-  { { $as_echo "$as_me:$LINENO: error: R_PPC_REL16 is not supported. Binutils is too old." >&5
-$as_echo "$as_me: error: R_PPC_REL16 is not supported. Binutils is too old." >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "R_PPC_REL16 is not supported. Binutils is too old." "$LINENO" 5
 fi
 
 # See whether GCC uses -msecure-plt.
-{ $as_echo "$as_me:$LINENO: checking for -msecure-plt by default" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -msecure-plt by default" >&5
 $as_echo_n "checking for -msecure-plt by default... " >&6; }
-if test "${libc_cv_ppc_secure_plt+set}" = set; then
+if ${libc_cv_ppc_secure_plt+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   echo 'int foo (void) { extern int bar; return bar; }' > conftest.c
 libc_cv_ppc_secure_plt=no
 if { ac_try='${CC-cc} -S $CFLAGS conftest.c -fpic -o conftest.s 1>&5'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
   if grep '_GLOBAL_OFFSET_TABLE_-.*@ha' conftest.s > /dev/null 2>&1; then
     libc_cv_ppc_secure_plt=yes
   fi
 fi
 rm -rf conftest*
 fi
-{ $as_echo "$as_me:$LINENO: result: $libc_cv_ppc_secure_plt" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ppc_secure_plt" >&5
 $as_echo "$libc_cv_ppc_secure_plt" >&6; }
 if test $libc_cv_ppc_secure_plt = yes; then
-  cat >>confdefs.h <<\_ACEOF
-#define HAVE_PPC_SECURE_PLT 1
-_ACEOF
+  $as_echo "#define HAVE_PPC_SECURE_PLT 1" >>confdefs.h
 
 fi
diff --git a/sysdeps/powerpc/powerpc64/configure b/sysdeps/powerpc/powerpc64/configure
index a9b6722c11..7cff76141b 100644
--- a/sysdeps/powerpc/powerpc64/configure
+++ b/sysdeps/powerpc/powerpc64/configure
@@ -1,21 +1,103 @@
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/powerpc/powerpc64.
 
 # The Aix ld uses global .symbol_names instead of symbol_names
 # and unfortunately early Linux PPC64 linkers use it as well.
-{ $as_echo "$as_me:$LINENO: checking for support for omitting dot symbols" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for support for omitting dot symbols" >&5
 $as_echo_n "checking for support for omitting dot symbols... " >&6; }
-if test "${libc_cv_omit_dot_syms+set}" = set; then
+if ${libc_cv_omit_dot_syms+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   libc_cv_omit_dot_syms=no
 echo 'void foo (void) {}' > conftest.c
 if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -S conftest.c -o conftest.s 1>&5'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
   if grep -w '\.foo' conftest.s > /dev/null; then
     :
   else
@@ -25,28 +107,26 @@ fi
 rm -f conftest.c conftest.s
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $libc_cv_omit_dot_syms" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_omit_dot_syms" >&5
 $as_echo "$libc_cv_omit_dot_syms" >&6; }
 if test x$libc_cv_omit_dot_syms != xyes; then
-  cat >>confdefs.h <<\_ACEOF
-#define HAVE_ASM_GLOBAL_DOT_NAME 1
-_ACEOF
+  $as_echo "#define HAVE_ASM_GLOBAL_DOT_NAME 1" >>confdefs.h
 
 fi
 
-{ $as_echo "$as_me:$LINENO: checking for linker support for overlapping .opd entries" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker support for overlapping .opd entries" >&5
 $as_echo_n "checking for linker support for overlapping .opd entries... " >&6; }
-if test "${libc_cv_overlapping_opd+set}" = set; then
+if ${libc_cv_overlapping_opd+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   libc_cv_overlapping_opd=no
 echo 'void foo (void) {}' > conftest.c
 if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -S conftest.c -o conftest.s 1>&5'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
   if grep '\.TOC\.@tocbase' conftest.s > /dev/null; then
     if grep '\.TOC\.@tocbase[ 	]*,[ 	]*0' conftest.s > /dev/null; then
       :
@@ -58,11 +138,9 @@ fi
 rm -f conftest.c conftest.s
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $libc_cv_overlapping_opd" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_overlapping_opd" >&5
 $as_echo "$libc_cv_overlapping_opd" >&6; }
 if test x$libc_cv_overlapping_opd = xyes; then
-  cat >>confdefs.h <<\_ACEOF
-#define USE_PPC64_OVERLAPPING_OPD 1
-_ACEOF
+  $as_echo "#define USE_PPC64_OVERLAPPING_OPD 1" >>confdefs.h
 
 fi
diff --git a/sysdeps/unix/sysv/linux/powerpc/configure b/sysdeps/unix/sysv/linux/powerpc/configure
index df2813d9cd..802b371601 100644
--- a/sysdeps/unix/sysv/linux/powerpc/configure
+++ b/sysdeps/unix/sysv/linux/powerpc/configure
@@ -1,19 +1,135 @@
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux/powerpc/.
 
 
-{ $as_echo "$as_me:$LINENO: checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format" >&5
 $as_echo_n "checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format... " >&6; }
-if test "${libc_cv_mlong_double_128ibm+set}" = set; then
+if ${libc_cv_mlong_double_128ibm+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   save_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS -mlong-double-128"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <float.h>
 int
@@ -28,51 +144,26 @@ long double foobar (long double x) { return x; }
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   libc_cv_mlong_double_128ibm=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	libc_cv_mlong_double_128ibm=no
+  libc_cv_mlong_double_128ibm=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 CFLAGS="$save_CFLAGS"
 fi
-{ $as_echo "$as_me:$LINENO: result: $libc_cv_mlong_double_128ibm" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mlong_double_128ibm" >&5
 $as_echo "$libc_cv_mlong_double_128ibm" >&6; }
 
 if test "$libc_cv_mlong_double_128ibm" = no; then
-  { $as_echo "$as_me:$LINENO: checking whether $CC $CFLAGS supports -mabi=ibmlongdouble" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC $CFLAGS supports -mabi=ibmlongdouble" >&5
 $as_echo_n "checking whether $CC $CFLAGS supports -mabi=ibmlongdouble... " >&6; }
-if test "${libc_cv_mabi_ibmlongdouble+set}" = set; then
+if ${libc_cv_mabi_ibmlongdouble+:} false; then :
   $as_echo_n "(cached) " >&6
 else
     save_CFLAGS="$CFLAGS"
   CFLAGS="$CFLAGS -mlong-double-128 -mabi=ibmlongdouble"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <float.h>
 int
@@ -87,43 +178,20 @@ long double foobar (long double x) { return x; }
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   libc_cv_mabi_ibmlongdouble=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	libc_cv_mabi_ibmlongdouble=no
+  libc_cv_mabi_ibmlongdouble=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   CFLAGS="$save_CFLAGS"
 fi
-{ $as_echo "$as_me:$LINENO: result: $libc_cv_mabi_ibmlongdouble" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mabi_ibmlongdouble" >&5
 $as_echo "$libc_cv_mabi_ibmlongdouble" >&6; }
 
   if test "$libc_cv_mabi_ibmlongdouble" = yes; then
     CFLAGS="$CFLAGS -mabi=ibmlongdouble"
   else
-    { { $as_echo "$as_me:$LINENO: error: this configuration requires -mlong-double-128 IBM extended format support" >&5
-$as_echo "$as_me: error: this configuration requires -mlong-double-128 IBM extended format support" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error $? "this configuration requires -mlong-double-128 IBM extended format support" "$LINENO" 5
   fi
 fi
diff --git a/sysdeps/x86_64/fpu/multiarch/Makefile b/sysdeps/x86_64/fpu/multiarch/Makefile
index 2a38ffc764..12b0526e50 100644
--- a/sysdeps/x86_64/fpu/multiarch/Makefile
+++ b/sysdeps/x86_64/fpu/multiarch/Makefile
@@ -7,10 +7,9 @@ libm-sysdep_routines += e_exp-fma4 e_log-fma4 e_pow-fma4 s_atan-fma4 \
 			e_asin-fma4 e_atan2-fma4 s_sin-fma4 s_tan-fma4 \
 			mplog-fma4 mpa-fma4 slowexp-fma4 slowpow-fma4 \
 			sincos32-fma4 doasin-fma4 dosincos-fma4 \
-			brandred-fma4 halfulp-fma4 mpexp-fma4 \
+			halfulp-fma4 mpexp-fma4 \
 			mpatan2-fma4 mpatan-fma4 mpsqrt-fma4 mptan-fma4
 
-CFLAGS-brandred-fma4.c = -mfma4
 CFLAGS-doasin-fma4.c = -mfma4
 CFLAGS-dosincos-fma4.c = -mfma4
 CFLAGS-e_asin-fma4.c = -mfma4
diff --git a/sysdeps/x86_64/fpu/multiarch/brandred-fma4.c b/sysdeps/x86_64/fpu/multiarch/brandred-fma4.c
deleted file mode 100644
index f4f68ac962..0000000000
--- a/sysdeps/x86_64/fpu/multiarch/brandred-fma4.c
+++ /dev/null
@@ -1,4 +0,0 @@
-#define __branred __branred_fma4
-#define SECTION __attribute__ ((section (".text.fma4")))
-
-#include <sysdeps/ieee754/dbl-64/branred.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/s_sin-fma4.c b/sysdeps/x86_64/fpu/multiarch/s_sin-fma4.c
index 2501af981a..4c35739dc9 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_sin-fma4.c
+++ b/sysdeps/x86_64/fpu/multiarch/s_sin-fma4.c
@@ -1,6 +1,5 @@
 #define __cos __cos_fma4
 #define __sin __sin_fma4
-#define __branred __branred_fma4
 #define __docos __docos_fma4
 #define __dubsin __dubsin_fma4
 #define __mpcos __mpcos_fma4
diff --git a/sysdeps/x86_64/fpu/multiarch/s_tan-fma4.c b/sysdeps/x86_64/fpu/multiarch/s_tan-fma4.c
index d7dab3ca9e..a805440b46 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_tan-fma4.c
+++ b/sysdeps/x86_64/fpu/multiarch/s_tan-fma4.c
@@ -1,5 +1,4 @@
 #define tan __tan_fma4
-#define __branred __branred_fma4
 #define __dbl_mp __dbl_mp_fma4
 #define __mpranred __mpranred_fma4
 #define __mptan __mptan_fma4