Analysis refactoring for fixed-point scaling
[opus.git] / m4 / as-gcc-inline-assembly.m4
index 4437a9d..b0d2da4 100644 (file)
@@ -4,8 +4,6 @@ dnl autostars m4 macro for detection of gcc inline assembly
 
 dnl David Schleef <ds@schleef.org>
 
-dnl $Id$
-
 dnl AS_COMPILER_FLAG(ACTION-IF-ACCEPTED, [ACTION-IF-NOT-ACCEPTED])
 dnl Tries to compile with the given CFLAGS.
 dnl Runs ACTION-IF-ACCEPTED if the compiler can compile with the flags,
@@ -33,74 +31,68 @@ __asm__ (""::) ], [flag_ok=yes], [flag_ok=no])
   AC_MSG_RESULT([$flag_ok])
 ])
 
-AC_DEFUN([AC_TRY_ASSEMBLE],
-[ac_c_ext=$ac_ext
- ac_ext=${ac_s_ext-s}
- cat > conftest.$ac_ext <<EOF
- .file "configure"
-[$1]
-EOF
-if AC_TRY_EVAL(ac_compile); then
-  ac_ext=$ac_c_ext
-  ifelse([$2], , :, [  $2
-  rm -rf conftest*])
-else
-  echo "configure: failed program was:" >&AC_FD_CC
-  cat conftest.$ac_ext >&AC_FD_CC
-  ac_ext=$ac_c_ext
-ifelse([$3], , , [  rm -rf conftest*
-  $3
-])dnl
-fi
-rm -rf conftest*])
-
-
 AC_DEFUN([AS_ASM_ARM_NEON],
 [
   AC_MSG_CHECKING([if assembler supports NEON instructions on ARM])
 
-  AC_TRY_ASSEMBLE([vorr d0,d0,d0], [flag_ok=yes], [flag_ok=no])
-
-  if test "X$flag_ok" = Xyes ; then
-    $1
-    true
-  else
-    $2
-    true
-  fi
-  AC_MSG_RESULT([$flag_ok])
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__("vorr d0,d0,d0")])],
+                    [AC_MSG_RESULT([yes])
+                     $1],
+                    [AC_MSG_RESULT([no])
+                     $2])
 ])
 
+AC_DEFUN([AS_ASM_ARM_NEON_FORCE],
+[
+  AC_MSG_CHECKING([if assembler supports NEON instructions on ARM])
+
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__(".arch armv7-a\n.fpu neon\n.object_arch armv4t\nvorr d0,d0,d0")])],
+                    [AC_MSG_RESULT([yes])
+                     $1],
+                    [AC_MSG_RESULT([no])
+                     $2])
+])
 
 AC_DEFUN([AS_ASM_ARM_MEDIA],
 [
   AC_MSG_CHECKING([if assembler supports ARMv6 media instructions on ARM])
 
-  AC_TRY_ASSEMBLE([shadd8 r3,r3,r3], [flag_ok=yes], [flag_ok=no])
-
-  if test "X$flag_ok" = Xyes ; then
-    $1
-    true
-  else
-    $2
-    true
-  fi
-  AC_MSG_RESULT([$flag_ok])
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__("shadd8 r3,r3,r3")])],
+                    [AC_MSG_RESULT([yes])
+                     $1],
+                    [AC_MSG_RESULT([no])
+                     $2])
 ])
 
+AC_DEFUN([AS_ASM_ARM_MEDIA_FORCE],
+[
+  AC_MSG_CHECKING([if assembler supports ARMv6 media instructions on ARM])
+
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__(".arch armv6\n.object_arch armv4t\nshadd8 r3,r3,r3")])],
+                    [AC_MSG_RESULT([yes])
+                     $1],
+                    [AC_MSG_RESULT([no])
+                     $2])
+])
 
 AC_DEFUN([AS_ASM_ARM_EDSP],
 [
   AC_MSG_CHECKING([if assembler supports EDSP instructions on ARM])
 
-  AC_TRY_ASSEMBLE([qadd r3,r3,r3], [flag_ok=yes], [flag_ok=no])
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__("qadd r3,r3,r3")])],
+                    [AC_MSG_RESULT([yes])
+                     $1],
+                    [AC_MSG_RESULT([no])
+                     $2])
+])
 
-  if test "X$flag_ok" = Xyes ; then
-    $1
-    true
-  else
-    $2
-    true
-  fi
-  AC_MSG_RESULT([$flag_ok])
+AC_DEFUN([AS_ASM_ARM_EDSP_FORCE],
+[
+  AC_MSG_CHECKING([if assembler supports EDSP instructions on ARM])
+
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__(".arch armv5te\n.object_arch armv4t\nqadd r3,r3,r3")])],
+                    [AC_MSG_RESULT([yes])
+                     $1],
+                    [AC_MSG_RESULT([no])
+                     $2])
 ])