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c11408ea2f
If the field address comes from a struct_element_addr which is a result of an optimized `MemoryLayout<S>.offset(of: \.field)` we cannot return undef. We have to be consistent with `offset(of:)`, which returns 0. Therefore we need to return the base address of the struct. rdar://117265274
46 lines
715 B
Swift
46 lines
715 B
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-build-swift -module-name=test %s -o %t/a.out
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// RUN: %target-codesign %t/a.out
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// RUN: %target-run %t/a.out | %FileCheck %s
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// RUN: %target-build-swift -module-name=test -O %s -o %t/a.out
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// RUN: %target-codesign %t/a.out
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// RUN: %target-run %t/a.out | %FileCheck %s
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// REQUIRES: executable_test
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enum E {
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case A
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}
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struct X {}
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struct S {
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let i: Int
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let e: E
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let x: X
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}
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var gg: Int? = 27
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@inline(never)
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func getOffsetE() {
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gg = MemoryLayout<S>.offset(of: \.e)
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}
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@inline(never)
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func getOffsetX() {
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gg = MemoryLayout<S>.offset(of: \.x)
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}
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getOffsetE()
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// CHECK: Optional(0)
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print(gg as Any)
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gg = 27
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getOffsetX()
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// CHECK: Optional(0)
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print(gg as Any)
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