x86-64, asm: If the assembler supports fxsave64, use it

[pandora-kernel.git] / arch / x86 / include / asm / i387.h

diff --git a/arch/x86/include/asm/i387.h b/arch/x86/include/asm/i387.h
index a73a8d5..70f105b 100644 (file)
--- a/arch/x86/include/asm/i387.h
+++ b/arch/x86/include/asm/i387.h
@@ -175,7 +175,7 @@ static inline void fpu_fxsave(struct fpu *fpu)
           uses any extended registers for addressing, a second REX prefix
           will be generated (to the assembler, rex64 followed by semicolon
           is a separate instruction), and hence the 64-bitness is lost. */
-#if 0
+#ifdef CONFIG_AS_FXSAVEQ
        /* Using "fxsaveq %0" would be the ideal choice, but is only supported
           starting with gas 2.16. */
        __asm__ __volatile__("fxsaveq %0"