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da07ff577c
PrintAsClang is supposed to emit declarations in the same order regardless of the compiler’s internal state, but we have repeatedly found that our current criteria are inadequate, resulting in non-functionality-affecting changes to generated header content. Add a diagnostic that’s emitted when this happens soliciting a bug report. Since there *should* be no cases where the compiler fails to order declarations, this diagnostic is never actually emitted. Instead, we test this change by enabling `-verify` on nearly all PrintAsClang tests to make sure they are unaffected. This did demonstrate a missing criterion that only mattered in C++ mode: extensions that varied only in their generic signature were not sorted stably. Add a sort criterion for this.
34 lines
1.9 KiB
Swift
34 lines
1.9 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) %s -module-name Functions -clang-header-expose-decls=all-public -typecheck -verify -emit-clang-header-path %t/functions.h
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// RUN: %FileCheck %s < %t/functions.h
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// RUN: %check-interop-cxx-header-in-clang(%t/functions.h)
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// CHECK: SWIFT_INLINE_THUNK swift_double2 passThroughdouble2(swift_double2 x) noexcept SWIFT_SYMBOL({{.*}}) SWIFT_WARN_UNUSED_RESULT {
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// CHECK-NEXT: return Functions::_impl::$s9Functions18passThroughdouble2y4simd7double2VAEF(x);
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// CHECK-NEXT: }
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// CHECK: SWIFT_INLINE_THUNK swift_float3 passThroughfloat3(swift_float3 x) noexcept SWIFT_SYMBOL({{.*}}) SWIFT_WARN_UNUSED_RESULT {
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// CHECK-NEXT: return Functions::_impl::$s9Functions17passThroughfloat3y4simd6float3VAEF(x);
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// CHECK-NEXT: }
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// CHECK: SWIFT_INLINE_THUNK swift_float4 passThroughfloat4(swift_float4 x) noexcept SWIFT_SYMBOL({{.*}}) SWIFT_WARN_UNUSED_RESULT {
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// CHECK-NEXT: return Functions::_impl::$s9Functions17passThroughfloat4y4simd6float4VAEF(x);
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// CHECK-NEXT: }
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// CHECK: SWIFT_INLINE_THUNK swift_int3 passThroughint3(swift_int3 x) noexcept SWIFT_SYMBOL({{.*}}) SWIFT_WARN_UNUSED_RESULT {
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// CHECK-NEXT: return Functions::_impl::$s9Functions15passThroughint3y4simd4int3VAEF(x);
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// CHECK-NEXT: }
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// CHECK: SWIFT_INLINE_THUNK swift_uint4 passThroughuint4(swift_uint4 x) noexcept SWIFT_SYMBOL({{.*}}) SWIFT_WARN_UNUSED_RESULT {
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// CHECK-NEXT: return Functions::_impl::$s9Functions16passThroughuint4y4simd5uint4VAEF(x);
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// CHECK-NEXT: }
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import simd
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public func passThroughfloat3(_ x: float3) -> float3 { return x }
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public func passThroughfloat4(_ x: float4) -> float4 { return x }
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public func passThroughdouble2(_ x: double2) -> double2 { return x }
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public func passThroughint3(_ x: int3) -> int3 { return x }
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public func passThroughuint4(_ x: uint4) -> uint4 { return x }
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