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61fd4b1431
@_semantics("constant_evaluable") annotation to denote constant
evaluable functions.
Add a test suite that uses the sil-opt pass ConstantEvaluableSubsetChecker.cpp
to check the constant evaluability of function in the OSLog
overlay.
23 lines
1.0 KiB
Swift
23 lines
1.0 KiB
Swift
// RUN: not %target-swift-frontend -enable-experimental-static-assert -emit-sil %s 2>&1 | %FileCheck %s
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// RUN: not %target-swift-frontend -enable-experimental-static-assert -enable-ownership-stripping-after-serialization -emit-sil %s 2>&1 | %FileCheck %s
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// This is a special FileCheck test for testing that we properly catch that we
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// are recursing here. The reason why this is separate from the other
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// pound_assert tests is that the "limit exceeded" here diagnostic can vary
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// depending on the codegen since we are using an arbitrary limit of 512. If the
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// codegen changes, the line where we stop evaluating can change meaning that
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// the note moves around lines. With FileCheck we have more flexibility to just
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// match what we actually want.
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// CHECK: error: #assert condition not constant
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// CHECK: note: exceeded instruction limit: {{.*}} when evaluating the expression at compile time
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// CHECK: limit exceeded here
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func recursive(a: Int) -> Int {
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return a == 0 ? 0 : recursive(a: a-1)
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}
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func test_recursive() {
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#assert(recursive(a: 20000) > 42)
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}
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