mirror of
https://github.com/status-im/status-go.git
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eeca435064
Update vendor Integrate rendezvous into status node Add a test with failover using rendezvous Use multiple servers in client Use discovery V5 by default and test that node can be started with rendezvous discovet Fix linter Update rendezvous client to one with instrumented stream Address feedback Fix test with updated topic limits Apply several suggestions Change log to debug for request errors because we continue execution Remove web3js after rebase Update rendezvous package
61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
// +build 386,!gccgo amd64,!gccgo
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// Copyright 2016 Frank Wessels <fwessels@xs4all.nl>
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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package blake2b
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func cpuid(op uint32) (eax, ebx, ecx, edx uint32)
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func cpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32)
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func xgetbv(index uint32) (eax, edx uint32)
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// True when SIMD instructions are available.
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var avx2 = haveAVX2()
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var avx = haveAVX()
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var ssse3 = haveSSSE3()
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// haveAVX returns true when there is AVX support
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func haveAVX() bool {
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_, _, c, _ := cpuid(1)
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// Check XGETBV, OXSAVE and AVX bits
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if c&(1<<26) != 0 && c&(1<<27) != 0 && c&(1<<28) != 0 {
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// Check for OS support
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eax, _ := xgetbv(0)
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return (eax & 0x6) == 0x6
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}
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return false
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}
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// haveAVX2 returns true when there is AVX2 support
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func haveAVX2() bool {
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mfi, _, _, _ := cpuid(0)
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// Check AVX2, AVX2 requires OS support, but BMI1/2 don't.
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if mfi >= 7 && haveAVX() {
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_, ebx, _, _ := cpuidex(7, 0)
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return (ebx & 0x00000020) != 0
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}
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return false
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}
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// haveSSSE3 returns true when there is SSSE3 support
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func haveSSSE3() bool {
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_, _, c, _ := cpuid(1)
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return (c & 0x00000200) != 0
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}
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