Comment # 3 on bug 1133123 from Martin Li��ka

For i586, I see that with LTO following is included:

$ cat -n libswscale/x86/yuv2rgb.c
...
    52  //MMX versions
    53  #if HAVE_MMX_INLINE && HAVE_6REGS
    54  #undef RENAME
    55  #undef COMPILE_TEMPLATE_MMXEXT
    56  #define COMPILE_TEMPLATE_MMXEXT 0
    57  #define RENAME(a) a ## _mmx
    58  #include "yuv2rgb_template.c"
    59  #endif /* HAVE_MMX_INLINE && HAVE_6REGS */
...

while non-LTO mode does not include that. Looking at config.h, I see following
difference:

@@ -338,7 +338,7 @@
 #define HAVE_GNU_AS 0
 #define HAVE_GNU_WINDRES 0
 #define HAVE_IBM_ASM 0
-#define HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS 1
+#define HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS 0
 #define HAVE_INLINE_ASM_LABELS 1
 #define HAVE_INLINE_ASM_NONLOCAL_LABELS 1
 #define HAVE_PRAGMA_DEPRECATED 1

Is it causing include of the yuv2rgb_template.c file?