2020-04-15 19:24:18 +00:00
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# Constantine
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# Copyright (c) 2018-2019 Status Research & Development GmbH
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# Copyright (c) 2020-Present Mamy André-Ratsimbazafy
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at http://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at http://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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2020-10-11 19:33:59 +00:00
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when defined(amd64): # TODO defined(i386) but it seems like RDTSC call is misconfigured
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2020-04-15 19:24:18 +00:00
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import platforms/x86
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export getTicks, cpuName
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const SupportsCPUName* = true
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const SupportsGetTicks* = true
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else:
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const SupportsCPUName* = false
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const SupportsGetTicks* = false
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# Prevent compiler optimizing benchmark away
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# -----------------------------------------------
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# This doesn't always work unfortunately ...
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proc volatilize(x: ptr byte) {.codegenDecl: "$# $#(char const volatile *x)", inline.} =
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discard
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template preventOptimAway*[T](x: var T) =
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volatilize(cast[ptr byte](unsafeAddr x))
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template preventOptimAway*[T](x: T) =
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volatilize(cast[ptr byte](x))
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