qiurui
/
glibc
mirror of git://sourceware.org/git/glibc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

(__bswap_32): Add cast to avoid invalid asm.

This commit is contained in:
Andreas Schwab 2001-01-17 15:54:57 +00:00
parent d26253b410
commit 76aaa35294
1 changed files with 10 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
sysdeps/m68k/bits/byteswap.h
View File

@ -34,16 +34,16 @@
#if defined __GNUC__ && __GNUC__ >= 2 #if defined __GNUC__ && __GNUC__ >= 2
# define __bswap_32(x) \ # define __bswap_32(x) \
__extension__ \ __extension__ \
({ unsigned int __bswap_32_v; \ ({ unsigned int __bswap_32_v; \
if (__builtin_constant_p (x)) \ if (__builtin_constant_p (x)) \
__bswap_32_v = __bswap_constant_32 (x); \ __bswap_32_v = __bswap_constant_32 (x); \
else \ else \
__asm__ __volatile__ ("ror%.w %#8, %0;" \ __asm__ __volatile__ ("ror%.w %#8, %0;" \
"swap %0;" \ "swap %0;" \
"ror%.w %#8, %0" \ "ror%.w %#8, %0" \
: "=d" (__bswap_32_v) \ : "=d" (__bswap_32_v) \
: "0" (x)); \ : "0" ((unsigned int) (x))); \
__bswap_32_v; }) __bswap_32_v; })
#else #else
# define __bswap_32(x) __bswap_constant_32 (x) # define __bswap_32(x) __bswap_constant_32 (x)