--- /dev/null
+From: RĂ©mi Denis-Courmont <remi@remlab.net>
+Date: Sun, 16 Jul 2023 15:18:02 +0000 (+0300)
+Subject: avcodec/x86/mathops: clip constants used with shift instructions within inline assembly
+X-Git-Url: http://git.ffmpeg.org/gitweb/ffmpeg.git/commitdiff_plain/25cd95a9dc3510c3cc0d7aad6f9d83f6a1078c7e?hp=e5b5dd66535f444451e0fee59247b224d866f334
+
+avcodec/x86/mathops: clip constants used with shift instructions within inline assembly
+
+Fixes assembling with binutil as >= 2.41
+
+Signed-off-by: James Almer <jamrial@gmail.com>
+(cherry picked from commit effadce6c756247ea8bae32dc13bb3e6f464f0eb)
+---
+
+--- a/libavcodec/x86/mathops.h
++++ b/libavcodec/x86/mathops.h
+@@ -35,12 +35,20 @@
+ static av_always_inline av_const int MULL(int a, int b, unsigned shift)
+ {
+ int rt, dummy;
++ if (__builtin_constant_p(shift))
+ __asm__ (
+ "imull %3 \n\t"
+ "shrdl %4, %%edx, %%eax \n\t"
+ :"=a"(rt), "=d"(dummy)
+- :"a"(a), "rm"(b), "ci"((uint8_t)shift)
++ :"a"(a), "rm"(b), "i"(shift & 0x1F)
+ );
++ else
++ __asm__ (
++ "imull %3 \n\t"
++ "shrdl %4, %%edx, %%eax \n\t"
++ :"=a"(rt), "=d"(dummy)
++ :"a"(a), "rm"(b), "c"((uint8_t)shift)
++ );
+ return rt;
+ }
+
+@@ -113,19 +121,31 @@ __asm__ volatile(\
+ // avoid +32 for shift optimization (gcc should do that ...)
+ #define NEG_SSR32 NEG_SSR32
+ static inline int32_t NEG_SSR32( int32_t a, int8_t s){
++ if (__builtin_constant_p(s))
+ __asm__ ("sarl %1, %0\n\t"
+ : "+r" (a)
+- : "ic" ((uint8_t)(-s))
++ : "i" (-s & 0x1F)
+ );
++ else
++ __asm__ ("sarl %1, %0\n\t"
++ : "+r" (a)
++ : "c" ((uint8_t)(-s))
++ );
+ return a;
+ }
+
+ #define NEG_USR32 NEG_USR32
+ static inline uint32_t NEG_USR32(uint32_t a, int8_t s){
++ if (__builtin_constant_p(s))
+ __asm__ ("shrl %1, %0\n\t"
+ : "+r" (a)
+- : "ic" ((uint8_t)(-s))
++ : "i" (-s & 0x1F)
+ );
++ else
++ __asm__ ("shrl %1, %0\n\t"
++ : "+r" (a)
++ : "c" ((uint8_t)(-s))
++ );
+ return a;
+ }
+