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6e7952b4ad
When a metadata pack is heap allocated, the pointer's LSB is set. But lldb is expecting a real pointer. So mask it off. Companion PR has a test: https://github.com/apple/llvm-project/pull/6961 rdar://110195273
24 lines
1.8 KiB
Swift
24 lines
1.8 KiB
Swift
// RUN: %target-swift-frontend -emit-ir %s -g -o - \
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// RUN: -parse-as-library -module-name a | %IRGenFileCheck %s
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public func foo<each T>(args: repeat each T) {
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// CHECK: define {{.*}} @"$s1a3foo4argsyxxQp_tRvzlF"
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// CHECK-SAME: %swift.type** %[[TYPE_PACK_ARG:.*]])
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// CHECK: %[[TYPE_PACK_ALLOCA:.*]] = alloca %swift.type**
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// CHECK: call void @llvm.dbg.declare(metadata %swift.type*** %[[TYPE_PACK_ALLOCA]], metadata ![[TYPE_PACK_VAR:[0-9]+]], metadata !DIExpression())
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// CHECK: %[[ARGS_ALLOCA:.*]] = alloca %swift.opaque**
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// CHECK-DAG: call void @llvm.dbg.declare(metadata %swift.opaque*** %[[ARGS_ALLOCA]], metadata ![[ARGS_VAR:[0-9]+]], metadata !DIExpression(DW_OP_deref))
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// CHECK-DAG: %[[TYPE_PACK_ARG_INT:[^,]+]] = ptrtoint %swift.type** %[[TYPE_PACK_ARG]] to [[INT]]
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// CHECK-DAG: %[[TYPE_PACK_ARG_MASKED_INT:[^,]+]] = and [[INT]] %[[TYPE_PACK_ARG_INT]], -2
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// CHECK-DAG: %[[TYPE_PACK_ARG_MASKED:[^,]+]] = inttoptr [[INT]] %[[TYPE_PACK_ARG_MASKED_INT]] to %swift.type**
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// CHECK-DAG: store %swift.type** %[[TYPE_PACK_ARG_MASKED]], %swift.type*** %[[TYPE_PACK_ALLOCA]]
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// CHECK-DAG: store %swift.opaque** %0, %swift.opaque*** %[[ARGS_ALLOCA]]
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// CHECK-DAG: ![[ARGS_VAR]] = !DILocalVariable(name: "args", arg: 1, {{.*}}line: [[@LINE-12]], type: ![[ARGS_LET_TY:[0-9]+]])
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// CHECK-DAG: ![[ARGS_LET_TY]] = !DIDerivedType(tag: DW_TAG_const_type, baseType: ![[ARGS_TY:[0-9]+]])
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// CHECK-DAG: ![[ARGS_TY]] = !DICompositeType({{.*}}identifier: "$sxxQp_QSiD")
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// CHECK-DAG: ![[TYPE_PACK_VAR]] = !DILocalVariable(name: "$\CF\84_0_0", {{.*}}type: ![[TYPE_PACK_TYD:[0-9]+]], flags: DIFlagArtificial)
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// CHECK-DAG: ![[TYPE_PACK_TYD]] = !DIDerivedType(tag: DW_TAG_typedef, name: "T", {{.*}}baseType: ![[TYPE_PACK_TY:[0-9]+]]
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// CHECK-DAG: ![[TYPE_PACK_TY]] = !DIDerivedType(tag: DW_TAG_pointer_type, name: "$sBpD"
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}
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