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07f632acaa
Add README files explaining the differentiable programming test suite. Add lit.local.cfg files so individual tests do not need to add `REQUIRES: asserts` in these directories: - test/AutoDiff/compiler_crashers - test/AutoDiff/compiler_crashers_fixed Motivation: it is important for compiler crasher tests to require assertions enabled, because many of these tests crash on compiler assertions.
27 lines
734 B
Swift
27 lines
734 B
Swift
// RUN: %target-swift-frontend -emit-sil %s
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// TF-1315: Pullback subset thunk generation crash due to unmapped parameter
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// index for `inout` differentiability parameters.
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import _Differentiation
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func foo(_ x: Int, _ y: Float, _ z: inout Float) {}
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@derivative(of: foo, wrt: (y, z))
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func vjpFoo(_ x: Int, _ y: Float, _ z: inout Float) -> (
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value: Void, pullback: (inout Float) -> Float
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) {
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fatalError()
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}
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@differentiable
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func TF_1315(_ x: Float) -> Float {
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var x = x
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// The call to `foo` below triggers pullback subset parameter thunk generation.
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// `foo` original function type: `(Int, Float, inout Float) -> ()`
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// Actual parameter indices: 1, 2
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// Desired parameter indices: 2
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foo(1, 2, &x)
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return x
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}
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