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Which consists of * removing redundant `address_to_pointer`-`pointer_to_address` pairs * optimize `index_raw_pointer` of a manually computed stride to `index_addr` * remove or increase the alignment based on a "assumeAlignment" builtin This is a big code cleanup but also has some functional differences for the `address_to_pointer`-`pointer_to_address` pair removal: * It's not done if the resulting SIL would result in a (detectable) use-after-dealloc_stack memory lifetime failure. * It's not done if `copy_value`s must be inserted or borrow-scopes must be extended to comply with ownership rules (this was the task of the OwnershipRAUWHelper). Inserting copies is bad anyway. Extending borrow-scopes would only be required if the original lifetime of the pointer extends a borrow scope - which shouldn't happen in save code. Therefore this is a very rare case which is not worth handling.
20 lines
506 B
Swift
20 lines
506 B
Swift
// RUN: %target-swift-frontend -import-objc-header %S/Inputs/enum-stack-protection.h %s -Onone -module-name=test -emit-sil | %FileCheck %s
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// Check that accessing an imported enum doesn't trigger stack protection.
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// CHECK-LABEL: sil @$s4test6testityyF : $@convention(thin) () -> () {
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// CHECK-NOT: stack_protection
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// CHECK: } // end sil function '$s4test6testityyF'
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public func testit() {
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var s = S()
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s.a = 1
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s.b = 2
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s.c = 3
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useit(s)
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}
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@inline(never)
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public func useit(_ s: S) {
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}
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