base/asm-common.h: Prefer `nil' as the unspecified-argument sentinel.

diff --git a/base/asm-common.h b/base/asm-common.h
index 41d092fa0ebe545f6869a050cf447e79a145063c..3560ec55fd6fffd112e29fd4fe8a87ac9205c020 100644 (file)
--- a/base/asm-common.h
+++ b/base/asm-common.h
@@ -1113,8 +1113,8 @@ name:
          .cfi_adjust_cfa_offset -\n
 .endm
 
          .cfi_adjust_cfa_offset -\n
 .endm
 

-.macro pushreg x, y=
-  .ifeqs "\y", ""
+.macro pushreg x, y=nil
+  .ifeqs "\y", "nil"

        str     \x, [sp, #-16]!
          .cfi_adjust_cfa_offset +16
          .cfi_rel_offset \x, 0
        str     \x, [sp, #-16]!
          .cfi_adjust_cfa_offset +16
          .cfi_rel_offset \x, 0


@@ -1126,8 +1126,8 @@ name:
   .endif
 .endm
 
   .endif
 .endm
 

-.macro popreg  x, y=
-  .ifeqs "\y", ""
+.macro popreg  x, y=nil
+  .ifeqs "\y", "nil"

        ldr     \x, [sp], #16
          .cfi_restore \x
          .cfi_adjust_cfa_offset -16
        ldr     \x, [sp], #16
          .cfi_restore \x
          .cfi_adjust_cfa_offset -16


@@ -1139,9 +1139,9 @@ name:
   .endif
 .endm
 
   .endif
 .endm
 

-.macro savereg x, y, z=
-  .ifeqs "\z", ""
-       str     \x, [sp, #\y]
+.macro savereg x, y, z=nil
+  .ifeqs "\z", "nil"
+       str     \x, [sp, \y]

          .cfi_rel_offset \x, \y
   .else
        stp     \x, \y, [sp, #\z]
          .cfi_rel_offset \x, \y
   .else
        stp     \x, \y, [sp, #\z]


@@ -1150,9 +1150,9 @@ name:
   .endif
 .endm
 
   .endif
 .endm
 

-.macro rstrreg x, y, z=
-  .ifeqs "\z", ""
-       ldr     \x, [sp, #\y]
+.macro rstrreg x, y, z=nil
+  .ifeqs "\z", "nil"
+       ldr     \x, [sp, \y]

          .cfi_restore \x
   .else
        ldp     \x, \y, [sp, #\z]
          .cfi_restore \x
   .else
        ldp     \x, \y, [sp, #\z]