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This allows the debugger to distinguish constant "let" values from mutable "var" variables. rdar://problem/16042546
32 lines
1.3 KiB
Swift
32 lines
1.3 KiB
Swift
// RUN: %target-swift-frontend %s -emit-ir -g -o - | %FileCheck %s
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func markUsed<T>(_ t: T) {}
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func use<T>(_ t: inout T) {}
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public protocol IGiveOutInts {
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func callMe() -> Int64
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}
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// CHECK: define {{.*}}@"$s11protocolarg16printSomeNumbersyyAA12IGiveOutInts_pF"
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// CHECK: @llvm.dbg.declare(metadata %T11protocolarg12IGiveOutIntsP** %
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// CHECK-SAME: metadata ![[ARG:[0-9]+]],
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// CHECK-SAME: metadata !DIExpression(DW_OP_deref))
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// CHECK: @llvm.dbg.declare(metadata %T11protocolarg12IGiveOutIntsP* %
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// CHECK-SAME: metadata ![[VAR:.*]], metadata !DIExpression())
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public func printSomeNumbers(_ gen: IGiveOutInts) {
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var gen = gen
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// FIXME: Should be DW_TAG_interface_type
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// CHECK: ![[PT:[0-9]+]] = !DICompositeType(tag: DW_TAG_structure_type, name: "IGiveOutInts"
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// CHECK: ![[ARG]] = !DILocalVariable(name: "gen", arg: 1,
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// CHECK-SAME: line: [[@LINE-5]],
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// CHECK-SAME: type: ![[LET_PT:[0-9]+]]
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// CHECK: ![[LET_PT]] = !DIDerivedType(tag: DW_TAG_const_type,
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// CHECK-SAME: baseType: ![[PT]])
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// CHECK: ![[VAR]] = !DILocalVariable(name: "gen", {{.*}} line: [[@LINE-8]],
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// CHECK-SAME: type: ![[PT]]
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markUsed(gen.callMe())
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use(&gen)
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}
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