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benchmarks: prevent some functions from being cross-module optimized.

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Function bodies of `blackHole`, `identity`, etc. must not be visible in the benchmark modules.
Enabling CMO by default broke this. Since then we need to explicitly exclude those functions from cross-module-optimization.
This commit is contained in:
Erik Eckstein
2022-04-19 13:59:33 +02:00
parent fb65284995
commit 1fceeab71e
1 changed files with 5 additions and 0 deletions
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5
benchmark/utils/TestsUtils.swift
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@@ -324,11 +324,13 @@ public func someProtocolFactory() -> SomeProtocol { return MyStruct() }
// It's important that this function is in another module than the tests
// which are using it.
@inline(never)
@_semantics("optimize.no.crossmodule")
public func blackHole<T>(_ x: T) {
}
// Return the passed argument without letting the optimizer know that.
@inline(never)
@_semantics("optimize.no.crossmodule")
public func identity<T>(_ x: T) -> T {
return x
}
@@ -337,12 +339,15 @@ public func identity<T>(_ x: T) -> T {
// It's important that this function is in another module than the tests
// which are using it.
@inline(never)
@_semantics("optimize.no.crossmodule")
public func getInt(_ x: Int) -> Int { return x }
// The same for String.
@inline(never)
@_semantics("optimize.no.crossmodule")
public func getString(_ s: String) -> String { return s }
// The same for Substring.
@inline(never)
@_semantics("optimize.no.crossmodule")
public func getSubstring(_ s: Substring) -> Substring { return s }