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39fa2f0228
Use the generic type lowering algorithm described in "docs/CallingConvention.rst#physical-lowering" to map from IRGen's explosion type to the type expected by the ABI. Change IRGen to use the swift calling convention (swiftcc) for native swift functions. Use the 'swiftself' attribute on self parameters and for closures contexts. Use the 'swifterror' parameter for swift error parameters. Change functions in the runtime that are called as native swift functions to use the swift calling convention. rdar://19978563
35 lines
1.1 KiB
Swift
35 lines
1.1 KiB
Swift
// RUN: %target-swift-frontend %s -emit-ir -g -o - | %FileCheck %s
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// REQUIRES: CPU=i386
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class Obj {}
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enum MyError : Error {
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case Simple
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case WithObj(Obj)
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}
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// i386 does not pass swifterror in a register. To support debugging of the
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// thrown error we create a shadow stack location holding the address of the
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// location that holds the pointer to the error instead.
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func simple(_ placeholder: Int64) throws -> () {
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// CHECK: define {{.*}}void @_TF6Errors6simpleFzVs5Int64T_(i64, %swift.refcounted* swiftself, %swift.error**)
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// CHECK: call void @llvm.dbg.declare
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// CHECK: call void @llvm.dbg.declare({{.*}}, metadata ![[ERROR:[0-9]+]], metadata ![[DEREF:[0-9]+]])
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// CHECK: ![[ERROR]] = !DILocalVariable(name: "$error", arg: 2,
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// CHECK-SAME: type: ![[ERRTY:.*]], flags: DIFlagArtificial)
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// CHECK: ![[ERRTY]] = !DICompositeType({{.*}}identifier: "_TtPs5Error_"
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// CHECK: ![[DEREF]] = !DIExpression(DW_OP_deref)
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throw MyError.Simple
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}
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func obj() throws -> () {
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throw MyError.WithObj(Obj())
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}
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public func foo() {
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do {
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try simple(1)
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try obj()
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}
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catch {}
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}
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