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| author | Mark Salter <msalter@redhat.com> | 2010-01-08 14:43:16 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-01-11 09:34:10 -0800 |
| commit | d6bb7a1ad326f56f0793353c59348554f84b513c (patch) | |
| tree | 803f006ee2cd924f73b6b4c92b040f9f1db95834 /arch/mn10300/mm | |
| parent | b0641e86fbc722906e323b2c2a069e65f44ff484 (diff) | |
| download | linux-d6bb7a1ad326f56f0793353c59348554f84b513c.tar.gz linux-d6bb7a1ad326f56f0793353c59348554f84b513c.tar.bz2 linux-d6bb7a1ad326f56f0793353c59348554f84b513c.zip | |
mn10300: add cc clobbers to asm statements
gcc 4.2.1 for MN10300 is more agressive than the older gcc in
reordering/moving other insns between an insn that sets flags and an insn
that uses those flags. This leads to trouble with asm statements which
are missing an explicit "cc" clobber. This patch adds the explicit "cc"
clobber to asm statements which do indeed clobber the condition flags.
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/mn10300/mm')
| -rw-r--r-- | arch/mn10300/mm/misalignment.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/mn10300/mm/misalignment.c b/arch/mn10300/mm/misalignment.c index 30016251f658..6dffbf97ac26 100644 --- a/arch/mn10300/mm/misalignment.c +++ b/arch/mn10300/mm/misalignment.c @@ -633,13 +633,13 @@ static int misalignment_addr(unsigned long *registers, unsigned long sp, goto displace_or_inc; case SD24: tmp = disp << 8; - asm("asr 8,%0" : "=r"(tmp) : "0"(tmp)); + asm("asr 8,%0" : "=r"(tmp) : "0"(tmp) : "cc"); disp = (long) tmp; goto displace_or_inc; case SIMM4_2: tmp = opcode >> 4 & 0x0f; tmp <<= 28; - asm("asr 28,%0" : "=r"(tmp) : "0"(tmp)); + asm("asr 28,%0" : "=r"(tmp) : "0"(tmp) : "cc"); disp = (long) tmp; goto displace_or_inc; case IMM8: |