Allow gsm to compile correctly on x86 with gcc4 optimizations.

(closes issue #11243)
Reported by: whiskerp
Patches:
      11243-maybe-asm.diff uploaded by qwell (license 4)
Tested by: Seggy (IRC)

Note: While I did write this patch, I would not have found this if fossil
 had not reported and fixed issue #12253.  A huge thanks to him for helping
 to (indirectly) find the problem here.

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@111856 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/codecs/gsm/inc/private.h b/codecs/gsm/inc/private.h
index 7021030aca30346d154d88f8100e06afd818c924..80ecbc59fba48fdd756f021e3ea37806d9231b5d 100644 (file)
--- a/codecs/gsm/inc/private.h
+++ b/codecs/gsm/inc/private.h
@@ -105,7 +105,7 @@ static __inline__ int GSM_L_ADD(int a, int b)
        __asm__ __volatile__(
        
                        "addl %2,%0; jno 0f; movl $0x7fffffff,%0; adcl $0,%0; 0:"
-                       : "=r" (a)
+                       : "=&r" (a)
                        : "0" (a), "ir" (b)
                        : "cc"
                );
@@ -116,7 +116,7 @@ static __inline__ short GSM_ADD(short a, short b)
 {
        __asm__ __volatile__(
                        "addw %2,%0; jno 0f; movw $0x7fff,%0; adcw $0,%0; 0:"
-                       : "=r" (a)
+                       : "=&r" (a)
                        : "0" (a), "ir" (b)
                        : "cc"
                );
@@ -127,7 +127,7 @@ static __inline__ short GSM_SUB(short a, short b)
 {
        __asm__ __volatile__(
                        "subw %2,%0; jno 0f; movw $0x7fff,%0; adcw $0,%0; 0:"
-                       : "=r" (a)
+                       : "=&r" (a)
                        : "0" (a), "ir" (b)
                        : "cc"
                );