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1ae1c51022
Now that Swift decides whether or not we need stack protection we should force LLVM to emit stack protection when we request it.
26 lines
804 B
Swift
26 lines
804 B
Swift
// RUN: %target-swift-frontend -enable-stack-protector -Onone -emit-ir %s -o - | %FileCheck %s
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// RUN: %target-swift-frontend -enable-stack-protector -O -emit-ir %s -o - | %FileCheck %s
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// REQUIRES: swift_in_compiler
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@_silgen_name("escape")
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func f(_ arg: UnsafePointer<Int>)
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@_silgen_name("noescape")
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func g(_ arg: Int)
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// CHECK: define {{.*}}swiftcc void @"$s15stack_protector21requestStackProtectoryyF"() [[SSPATTRS:#[0-9]+]] {
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public func requestStackProtector() {
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var x: Int = 0
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f(&x)
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}
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// CHECK-NOT: define {{.*}}swiftcc void @"$s15stack_protector16noStackProtectoryyF"() [[SSPATTRS]] {
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public func noStackProtector() {
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var x: Int = 27
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g(x)
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g(x) // avoid function merging by calling `g` two times
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}
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// CHECK: [[SSPATTRS]] = { sspreq {{.*}}"stack-protector-buffer-size"="8"
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