https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85100
--- Comment #8 from Uroš Bizjak <ubizjak at gmail dot com> --- Comment on attachment 43793 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43793 A patch >+ if ((ecx & bit_OSXSAVE)) >+ { >+ /* Check if XMM state and YMM state are saved. */ >+ unsigned int xcrlow; >+ unsigned int xcrhigh; >+ asm ("xgetbv" : "=a" (xcrlow), "=d" (xcrhigh) : "c" (0)); >+ if ((xcrlow & 0x6) == 0x6) Please use .byte stream instead of xgetbv mnemonic (libgcc can be compiled with an assembler that doesn't support xgetbv. Actually, you can just copy the part from driver-i386.c, preferrably also with #defines instead of magic numbers.
