#include "config.h"
#if ARCH_X86_64
+# define OPSIZE "q"
# define REG_a "rax"
# define REG_b "rbx"
# define REG_c "rcx"
#elif ARCH_X86_32
+# define OPSIZE "l"
# define REG_a "eax"
# define REG_b "ebx"
# define REG_c "ecx"
# define REGc ecx
# define REGd edx
# define REGSP esp
+#else
+typedef int x86_reg;
#endif
#define HAVE_7REGS (ARCH_X86_64 || (HAVE_EBX_AVAILABLE && HAVE_EBP_AVAILABLE))
# define BROKEN_RELOCATIONS 1
#endif
+/*
+ * If gcc is not set to support sse (-msse) it will not accept xmm registers
+ * in the clobber list for inline asm. XMM_CLOBBERS takes a list of xmm
+ * registers to be marked as clobbered and evaluates to nothing if they are
+ * not supported, or to the list itself if they are supported. Since a clobber
+ * list may not be empty, XMM_CLOBBERS_ONLY should be used if the xmm
+ * registers are the only in the clobber list.
+ * For example a list with "eax" and "xmm0" as clobbers should become:
+ * : XMM_CLOBBERS("xmm0",) "eax"
+ * and a list with only "xmm0" should become:
+ * XMM_CLOBBERS_ONLY("xmm0")
+ */
+#if HAVE_XMM_CLOBBERS
+# define XMM_CLOBBERS(...) __VA_ARGS__
+# define XMM_CLOBBERS_ONLY(...) : __VA_ARGS__
+#else
+# define XMM_CLOBBERS(...)
+# define XMM_CLOBBERS_ONLY(...)
+#endif
+
#endif /* AVUTIL_X86_CPU_H */