[src/trunk]: src/sys/arch/aarch64/aarch64 fix build error with LLVM.

[ryo <ryo%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/63ea13d388c6
branches:  trunk
changeset: 936097:63ea13d388c6
user:      ryo <ryo%NetBSD.org@localhost>
date:      Sun Jul 19 07:18:07 2020 +0000

description:
fix build error with LLVM.

diffstat:

 sys/arch/aarch64/aarch64/cpufunc_asm_armv8.S |  12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diffs (41 lines):

diff -r 44b9d8c9efe2 -r 63ea13d388c6 sys/arch/aarch64/aarch64/cpufunc_asm_armv8.S
--- a/sys/arch/aarch64/aarch64/cpufunc_asm_armv8.S      Sun Jul 19 07:08:09 2020 +0000
+++ b/sys/arch/aarch64/aarch64/cpufunc_asm_armv8.S      Sun Jul 19 07:18:07 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cpufunc_asm_armv8.S,v 1.6 2020/07/01 07:59:16 ryo Exp $        */
+/*     $NetBSD: cpufunc_asm_armv8.S,v 1.7 2020/07/19 07:18:07 ryo Exp $        */
 
 /*-
  * Copyright (c) 2014 Robin Randhawa
@@ -43,18 +43,18 @@
  * Macro to handle the cache. This takes the start address in x0, length
  * in x1. It will corrupt x2-x5.
  */
-.macro cache_handle_range dcop = 0, icop = 0
+.macro cache_handle_range dcop = "", icop = ""
        mrs     x3, ctr_el0
        mov     x4, #4                  /* size of word */
-.if \dcop != 0
+.ifnb \dcop
        ubfx    x2, x3, #16, #4         /* x2 = D cache shift */
        lsl     x2, x4, x2              /* x2 = D cache line size */
 .endif
-.if \icop != 0
+.ifnb \icop
        and     x3, x3, #15             /* x3 = I cache shift */
        lsl     x3, x4, x3              /* x3 = I cache line size */
 .endif
-.if \dcop != 0
+.ifnb \dcop
        sub     x4, x2, #1              /* Get the address mask */
        and     x4, x0, x4              /* Get the low bits of the address */
        add     x5, x1, x4              /* Add these to the size */
@@ -66,7 +66,7 @@
        b.hi    1b                      /* Check if we are done */
        dsb     ish
 .endif
-.if \icop != 0
+.ifnb \icop
        sub     x4, x3, #1              /* Get the address mask */
        and     x4, x0, x4              /* Get the low bits of the address */
        add     x5, x1, x4              /* Add these to the size */