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This allows the debugger to distinguish constant "let" values from mutable "var" variables. rdar://problem/16042546
24 lines
1.1 KiB
Swift
24 lines
1.1 KiB
Swift
// RUN: %target-swift-frontend %s -emit-ir -g -o - | %FileCheck %s
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import StdlibUnittest
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func foo<T>(_ x: T) -> () {
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// CHECK: define {{.*}} @"$s11generic_arg3fooyyxlF"
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// CHECK: %[[T:.*]] = alloca %swift.type*
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// CHECK: call void @llvm.dbg.declare(metadata %swift.type** %[[T]],
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// CHECK-SAME: metadata ![[T1:.*]], metadata !DIExpression())
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// CHECK: %[[X:.*]] = alloca %swift.opaque*
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// CHECK: call void @llvm.dbg.declare(metadata %swift.opaque** %[[X]],
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// CHECK-SAME: metadata ![[X1:.*]], metadata !DIExpression(DW_OP_deref))
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// CHECK: store %swift.type* %T, %swift.type** %[[T]],
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// CHECK: store %swift.opaque* %0, %swift.opaque** %[[X]],
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// CHECK: ![[TY2:[0-9]+]] = !DICompositeType({{.*}}identifier: "$sxD")
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// CHECK: ![[T1]] = !DILocalVariable(name: "$\CF\84_0_0",
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// CHECK-SAME: flags: DIFlagArtificial)
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// CHECK: ![[X1]] = !DILocalVariable(name: "x", arg: 1,
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// CHECK-SAME: line: 3, type: ![[LET_TY2:[0-9]+]])
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// CHECK: ![[LET_TY2]] = !DIDerivedType(tag: DW_TAG_const_type,
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// CHECK-SAME: baseType: ![[TY2]])
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_blackHole(x)
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}
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foo(42)
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