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7b72cc7782
This resolves the last of the PR14606 failures in the GDB 7.5 test suite by implementing an optional name field for DW_TAG_imported_modules/DIImportedEntities and using that to implement C++ namespace aliases (eg: "namespace X = Y;"). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182328 91177308-0d34-0410-b5e6-96231b3b80d8
251 lines
13 KiB
LLVM
251 lines
13 KiB
LLVM
; REQUIRES: object-emission
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; RUN: llc -O0 -filetype=obj < %s > %t
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; RUN: llvm-dwarfdump %t | FileCheck %s
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; CHECK: debug_info contents
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; CHECK: [[NS1:0x[0-9a-f]*]]:{{ *}}DW_TAG_namespace
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; CHECK-NEXT: DW_AT_name{{.*}} = "A"
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; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F1:[0-9]]])
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; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x03)
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; CHECK-NOT: NULL
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; CHECK: [[NS2:0x[0-9a-f]*]]:{{ *}}DW_TAG_namespace
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; CHECK-NEXT: DW_AT_name{{.*}} = "B"
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; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2:[0-9]]])
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; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x01)
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; CHECK-NOT: NULL
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; CHECK: [[I:0x[0-9a-f]*]]:{{ *}}DW_TAG_variable
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; CHECK-NEXT: DW_AT_name{{.*}}= "i"
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; CHECK-NOT: NULL
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; CHECK: DW_TAG_subprogram
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; CHECK-NEXT: DW_AT_MIPS_linkage_name
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; CHECK-NEXT: DW_AT_name{{.*}}= "f1"
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; CHECK: [[FUNC1:0x[0-9a-f]*]]:{{ *}}DW_TAG_subprogram
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; CHECK-NEXT: DW_AT_MIPS_linkage_name
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; CHECK-NEXT: DW_AT_name{{.*}}= "f1"
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; CHECK: NULL
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; CHECK-NOT: NULL
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; CHECK: [[FOO:0x[0-9a-f]*]]:{{ *}}DW_TAG_structure_type
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; CHECK-NEXT: DW_AT_name{{.*}}= "foo"
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; CHECK-NEXT: DW_AT_declaration
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; CHECK-NOT: NULL
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; CHECK: [[BAR:0x[0-9a-f]*]]:{{ *}}DW_TAG_structure_type
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; CHECK-NEXT: DW_AT_name{{.*}}= "bar"
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; CHECK: NULL
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; CHECK: NULL
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; CHECK: NULL
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; CHECK-NOT: NULL
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; CHECK: DW_TAG_imported_module
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; This is a bug, it should be in F2 but it inherits the file from its
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; enclosing scope
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; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F1]])
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; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x08)
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; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS2]]})
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; CHECK: NULL
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; CHECK-NOT: NULL
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; CHECK: DW_TAG_subprogram
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; CHECK-NEXT: DW_AT_MIPS_linkage_name
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; CHECK-NEXT: DW_AT_name{{.*}}= "func"
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; CHECK-NOT: NULL
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; CHECK: DW_TAG_imported_module
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; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
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; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x12)
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; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS1]]})
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; CHECK-NOT: NULL
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; CHECK: DW_TAG_imported_declaration
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; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
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; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x13)
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; CHECK-NEXT: DW_AT_import{{.*}}=> {[[FOO]]})
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; CHECK-NOT: NULL
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; CHECK: DW_TAG_imported_declaration
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; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
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; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x14)
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; CHECK-NEXT: DW_AT_import{{.*}}=> {[[BAR]]})
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; CHECK-NOT: NULL
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; CHECK: DW_TAG_imported_declaration
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; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
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; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x15)
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; CHECK-NEXT: DW_AT_import{{.*}}=> {[[FUNC1]]})
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; CHECK-NOT: NULL
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; CHECK: DW_TAG_imported_declaration
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; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
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; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x16)
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; CHECK-NEXT: DW_AT_import{{.*}}=> {[[I]]})
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; CHECK-NOT: NULL
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; CHECK: [[X:0x[0-9a-f]*]]:{{ *}}DW_TAG_imported_module
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; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
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; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x18)
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; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS1]]})
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; CHECK-NEXT: DW_AT_name{{.*}}"X"
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; CHECK-NOT: NULL
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; CHECK: DW_TAG_imported_module
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; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
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; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x19)
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; CHECK-NEXT: DW_AT_import{{.*}}=> {[[X]]})
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; CHECK-NEXT: DW_AT_name{{.*}}"Y"
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; CHECK-NOT: NULL
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; CHECK: DW_TAG_lexical_block
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; CHECK-NOT: NULL
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; CHECK: DW_TAG_imported_module
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; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
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; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x0f)
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; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS2]]})
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; CHECK: NULL
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; CHECK: NULL
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; CHECK-NOT: NULL
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; CHECK: DW_TAG_imported_module
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; Same bug as above, this should be F2, not F1
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; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F1]])
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; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x0b)
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; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS1]]})
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; CHECK: file_names[ [[F1]]]{{.*}}debug-info-namespace.cpp
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; CHECK: file_names[ [[F2]]]{{.*}}foo.cpp
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; IR generated from clang/test/CodeGenCXX/debug-info-namespace.cpp, file paths
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; changed to protect the guilty. The C++ source code is:
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; namespace A {
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; #line 1 "foo.cpp"
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; namespace B {
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; int i;
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; void f1() { }
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; void f1(int) { }
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; struct foo;
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; struct bar { };
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; }
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; using namespace B;
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; }
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;
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; using namespace A;
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;
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; int func(bool b) {
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; if (b) {
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; using namespace A::B;
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; return i;
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; }
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; using namespace A;
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; using B::foo;
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; using B::bar;
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; using B::f1;
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; using B::i;
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; bar x;
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; namespace X = A;
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; namespace Y = X;
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; return i + X::B::i + Y::B::i;
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; }
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%"struct.A::B::bar" = type { i8 }
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@_ZN1A1B1iE = global i32 0, align 4
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; Function Attrs: nounwind uwtable
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define void @_ZN1A1B2f1Ev() #0 {
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entry:
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ret void, !dbg !41
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}
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; Function Attrs: nounwind uwtable
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define void @_ZN1A1B2f1Ei(i32) #0 {
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entry:
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%.addr = alloca i32, align 4
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store i32 %0, i32* %.addr, align 4
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call void @llvm.dbg.declare(metadata !{i32* %.addr}, metadata !42), !dbg !43
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ret void, !dbg !43
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata) #1
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; Function Attrs: nounwind uwtable
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define i32 @_Z4funcb(i1 zeroext %b) #0 {
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entry:
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%retval = alloca i32, align 4
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%b.addr = alloca i8, align 1
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%x = alloca %"struct.A::B::bar", align 1
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%frombool = zext i1 %b to i8
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store i8 %frombool, i8* %b.addr, align 1
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call void @llvm.dbg.declare(metadata !{i8* %b.addr}, metadata !44), !dbg !45
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%0 = load i8* %b.addr, align 1, !dbg !46
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%tobool = trunc i8 %0 to i1, !dbg !46
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br i1 %tobool, label %if.then, label %if.end, !dbg !46
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if.then: ; preds = %entry
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%1 = load i32* @_ZN1A1B1iE, align 4, !dbg !47
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store i32 %1, i32* %retval, !dbg !47
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br label %return, !dbg !47
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if.end: ; preds = %entry
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call void @llvm.dbg.declare(metadata !{%"struct.A::B::bar"* %x}, metadata !48), !dbg !49
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%2 = load i32* @_ZN1A1B1iE, align 4, !dbg !50
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%3 = load i32* @_ZN1A1B1iE, align 4, !dbg !50
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%add = add nsw i32 %2, %3, !dbg !50
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%4 = load i32* @_ZN1A1B1iE, align 4, !dbg !50
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%add1 = add nsw i32 %add, %4, !dbg !50
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store i32 %add1, i32* %retval, !dbg !50
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br label %return, !dbg !50
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return: ; preds = %if.end, %if.then
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%5 = load i32* %retval, !dbg !51
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ret i32 %5, !dbg !51
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}
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attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !19, metadata !21, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/blaikie/dev/llvm/build/clang/debug//usr/local/google/home/blaikie/dev/llvm/src/tools/clang/test/CodeGenCXX/debug-info-namespace.cpp] [DW_LANG_C_plus_plus]
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!1 = metadata !{metadata !"/usr/local/google/home/blaikie/dev/llvm/src/tools/clang/test/CodeGenCXX/debug-info-namespace.cpp", metadata !"/usr/local/google/home/blaikie/dev/llvm/build/clang/debug"}
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!2 = metadata !{i32 0}
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!3 = metadata !{metadata !4, metadata !10, metadata !14}
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!4 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"f1", metadata !"f1", metadata !"_ZN1A1B2f1Ev", i32 3, metadata !8, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @_ZN1A1B2f1Ev, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [f1]
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!5 = metadata !{metadata !"foo.cpp", metadata !"/usr/local/google/home/blaikie/dev/llvm/build/clang/debug"}
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!6 = metadata !{i32 786489, metadata !5, metadata !7, metadata !"B", i32 1} ; [ DW_TAG_namespace ] [B] [line 1]
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!7 = metadata !{i32 786489, metadata !1, null, metadata !"A", i32 3} ; [ DW_TAG_namespace ] [A] [line 3]
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!8 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !9, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!9 = metadata !{null}
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!10 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"f1", metadata !"f1", metadata !"_ZN1A1B2f1Ei", i32 4, metadata !11, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (i32)* @_ZN1A1B2f1Ei, null, null, metadata !2, i32 4} ; [ DW_TAG_subprogram ] [line 4] [def] [f1]
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!11 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !12, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!12 = metadata !{null, metadata !13}
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!13 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
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!14 = metadata !{i32 786478, metadata !5, metadata !15, metadata !"func", metadata !"func", metadata !"_Z4funcb", i32 13, metadata !16, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i1)* @_Z4funcb, null, null, metadata !2, i32 13} ; [ DW_TAG_subprogram ] [line 13] [def] [func]
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!15 = metadata !{i32 786473, metadata !5} ; [ DW_TAG_file_type ] [/usr/local/google/home/blaikie/dev/llvm/build/clang/debug/foo.cpp]
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!16 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !17, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!17 = metadata !{metadata !13, metadata !18}
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!18 = metadata !{i32 786468, null, null, metadata !"bool", i32 0, i64 8, i64 8, i64 0, i32 0, i32 2} ; [ DW_TAG_base_type ] [bool] [line 0, size 8, align 8, offset 0, enc DW_ATE_boolean]
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!19 = metadata !{metadata !20}
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!20 = metadata !{i32 786484, i32 0, metadata !6, metadata !"i", metadata !"i", metadata !"_ZN1A1B1iE", metadata !15, i32 2, metadata !13, i32 0, i32 1, i32* @_ZN1A1B1iE, null} ; [ DW_TAG_variable ] [i] [line 2] [def]
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!21 = metadata !{metadata !22, metadata !23, metadata !24, metadata !26, metadata !27, metadata !29, metadata !37, metadata !38, metadata !39, metadata !40}
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!22 = metadata !{i32 786490, metadata !7, metadata !6, i32 8} ; [ DW_TAG_imported_module ]
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!23 = metadata !{i32 786490, metadata !0, metadata !7, i32 11} ; [ DW_TAG_imported_module ]
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!24 = metadata !{i32 786490, metadata !25, metadata !6, i32 15} ; [ DW_TAG_imported_module ]
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!25 = metadata !{i32 786443, metadata !5, metadata !14, i32 14, i32 0, i32 0} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/blaikie/dev/llvm/build/clang/debug/foo.cpp]
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!26 = metadata !{i32 786490, metadata !14, metadata !7, i32 18} ; [ DW_TAG_imported_module ]
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!27 = metadata !{i32 786440, metadata !14, metadata !28, i32 19} ; [ DW_TAG_imported_declaration ]
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!28 = metadata !{i32 786451, metadata !5, metadata !6, metadata !"foo", i32 5, i64 0, i64 0, i32 0, i32 4, null, null, i32 0} ; [ DW_TAG_structure_type ] [foo] [line 5, size 0, align 0, offset 0] [fwd] [from ]
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!29 = metadata !{i32 786440, metadata !14, metadata !30, i32 20} ; [ DW_TAG_imported_declaration ]
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!30 = metadata !{i32 786451, metadata !5, metadata !6, metadata !"bar", i32 6, i64 8, i64 8, i32 0, i32 0, null, metadata !31, i32 0, null, null} ; [ DW_TAG_structure_type ] [bar] [line 6, size 8, align 8, offset 0] [from ]
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!31 = metadata !{metadata !32}
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!32 = metadata !{i32 786478, metadata !5, metadata !30, metadata !"bar", metadata !"bar", metadata !"", i32 6, metadata !33, i1 false, i1 false, i32 0, i32 0, null, i32 320, i1 false, null, null, i32 0, metadata !36, i32 6} ; [ DW_TAG_subprogram ] [line 6] [bar]
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!33 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !34, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!34 = metadata !{null, metadata !35}
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!35 = metadata !{i32 786447, i32 0, i32 0, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !30} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from bar]
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!36 = metadata !{i32 786468}
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!37 = metadata !{i32 786440, metadata !14, metadata !10, i32 21} ; [ DW_TAG_imported_declaration ]
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!38 = metadata !{i32 786440, metadata !14, metadata !20, i32 22} ; [ DW_TAG_imported_declaration ]
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!39 = metadata !{i32 786490, metadata !14, metadata !7, i32 24, metadata !"X"} ; [ DW_TAG_imported_module ]
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!40 = metadata !{i32 786490, metadata !14, metadata !39, i32 25, metadata !"Y"} ; [ DW_TAG_imported_module ]
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!41 = metadata !{i32 3, i32 0, metadata !4, null}
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!42 = metadata !{i32 786689, metadata !10, metadata !"", metadata !15, i32 16777220, metadata !13, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [line 4]
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!43 = metadata !{i32 4, i32 0, metadata !10, null}
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!44 = metadata !{i32 786689, metadata !14, metadata !"b", metadata !15, i32 16777229, metadata !18, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [b] [line 13]
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!45 = metadata !{i32 13, i32 0, metadata !14, null}
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!46 = metadata !{i32 14, i32 0, metadata !14, null}
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!47 = metadata !{i32 16, i32 0, metadata !25, null}
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!48 = metadata !{i32 786688, metadata !14, metadata !"x", metadata !15, i32 23, metadata !30, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [x] [line 23]
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!49 = metadata !{i32 23, i32 0, metadata !14, null}
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!50 = metadata !{i32 26, i32 0, metadata !14, null}
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!51 = metadata !{i32 27, i32 0, metadata !14, null}
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