Displaying 6 results from an estimated 6 matches for "crc32be".
2018 Nov 06
4
Rather poor code optimisation of current clang/LLVM targeting Intel x86 (both -64 and -32)
..." machine instructions for this
expression, it fails to recognize other also common bit-twiddling
idioms/expressions.
The standard IEEE CRC-32 for "big endian" alias "network" byte order
(see <https://tools.ietf.org/html/rfc1952#section-8> for example):
unsigned int crc32be(unsigned char const *octets, unsigned int count)
{
unsigned int crc = 0L;
unsigned int i;
while (count--) {
crc ^= *octets++ << 24;
for (i = 8; i > 0; i--)
if (crc & 0x80000000L) // the code generated
crc <<= 1,...
2018 Nov 27
2
Rather poor code optimisation of current clang/LLVM targeting Intel x86 (both -64 and -32)
...fails to recognize other also common bit-twiddling
>> idioms/expressions.
>>
>> The standard IEEE CRC-32 for "big endian" alias "network" byte order
>> (see <https://tools.ietf.org/html/rfc1952#section-8> for example):
>>
>> unsigned int crc32be(unsigned char const *octets, unsigned int count)
>> {
>> unsigned int crc = 0L;
>> unsigned int i;
>>
>> while (count--) {
>> crc ^= *octets++ << 24;
>> for (i = 8; i > 0; i--)
>> if (crc & 0x800000...
2018 Nov 28
2
Rather poor code optimisation of current clang/LLVM targeting Intel x86 (both -64 and -32)
...;> >> idioms/expressions.
>> >>
>> >> The standard IEEE CRC-32 for "big endian" alias "network" byte order
>> >> (see <https://tools.ietf.org/html/rfc1952#section-8> for example):
>> >>
>> >> unsigned int crc32be(unsigned char const *octets, unsigned int count)
>> >> {
>> >> unsigned int crc = 0L;
>> >> unsigned int i;
>> >>
>> >> while (count--) {
>> >> crc ^= *octets++ << 24;
>> >> for (i...
2020 Feb 11
0
vhost changes (batched) in linux-next after 12/13 trigger random crashes in KVM guests after reboot
...9, 2097152 bytes, vmalloc)
[ 2.462534] UDP-Lite hash table entries: 65536 (order: 9, 2097152 bytes, vmalloc)
[ 2.463929] NET: Registered protocol family 1
[ 2.464136] Trying to unpack rootfs image as initramfs...
[ 3.031779] Freeing initrd memory: 43772K
[ 3.032996] alg: No test for crc32be (crc32be-vx)
[ 3.037140] Initialise system trusted keyrings
[ 3.037188] workingset: timestamp_bits=42 max_order=25 bucket_order=0
[ 3.038293] fuse: init (API version 7.31)
[ 3.038367] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled
[ 3.046520] Key type asymm...
2020 Feb 07
16
vhost changes (batched) in linux-next after 12/13 trigger random crashes in KVM guests after reboot
On Fri, Feb 07, 2020 at 08:47:14AM +0100, Christian Borntraeger wrote:
> Also adding Cornelia.
>
>
> On 06.02.20 23:17, Michael S. Tsirkin wrote:
> > On Thu, Feb 06, 2020 at 04:12:21PM +0100, Christian Borntraeger wrote:
> >>
> >>
> >> On 06.02.20 15:22, eperezma at redhat.com wrote:
> >>> Hi Christian.
> >>>
> >>>
2020 Feb 07
16
vhost changes (batched) in linux-next after 12/13 trigger random crashes in KVM guests after reboot
On Fri, Feb 07, 2020 at 08:47:14AM +0100, Christian Borntraeger wrote:
> Also adding Cornelia.
>
>
> On 06.02.20 23:17, Michael S. Tsirkin wrote:
> > On Thu, Feb 06, 2020 at 04:12:21PM +0100, Christian Borntraeger wrote:
> >>
> >>
> >> On 06.02.20 15:22, eperezma at redhat.com wrote:
> >>> Hi Christian.
> >>>
> >>>