OpenE2K
/
qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

target-i386: Inline bitops_flsl 

Use clz32 directly.  Which makes slightly more sense given
that the input is type "int" and not type "long".

Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2013-02-13 17:47:40 -08:00 committed by Blue Swirl
parent 0cfa6adc7f
commit 14e534265a
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
target-i386/topology.h
View File

@ -52,10 +52,8 @@ typedef uint32_t apic_id_t;
static unsigned apicid_bitwidth_for_count(unsigned count)
{
g_assert(count >= 1);
if (count == 1) {
return 0;
}
return bitops_flsl(count - 1) + 1;
count -= 1;
return count ? 32 - clz32(count) : 0;
}
/* Bit width of the SMT_ID (thread ID) field on the APIC ID