configure: add check_insn function

The check_insn function tests an instruction in both inline asm and standalone assembly, and sets _external/_inline config properties accordingly. Signed-off-by: Mans Rullgard <[email protected]>
zhangxiaoben · Dec 7, 2012 · c6ebc9f · c6ebc9f
1 parent 7fd9011
commit c6ebc9f
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/configure b/configure
@@ -698,6 +698,12 @@ void foo(void){ __asm__ volatile($code); }
 EOF
 }
 
+check_insn(){
+    log check_insn "$@"
+    check_inline_asm ${1}_inline "\"$2\""
+    echo "$2" | check_as && enable ${1}_external || disable ${1}_external
+}
+
 check_yasm(){
     log check_yasm "$@"
     echo "$1" > $TMPS