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DebugInfo: Demonstrate that we're not currently uniquing address table entries in fission
Since I just discovered this while poking at other things, here's the test case so I have it to come back to later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201267 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -13,7 +13,7 @@
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; FISSION: .section .debug_info.dwo,
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; 3 bytes of data in this DW_FORM_block1 representation of the location of 'tls'
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; FISSION: .byte 3{{ *}}# DW_AT_location
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; DW_OP_const_index (0xfx == 252) to refer to the debug_addr table
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; DW_OP_GNU_const_index (0xfx == 252) to refer to the debug_addr table
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; FISSION-NEXT: .byte 252
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; an index of zero into the debug_addr table
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; FISSION-NEXT: .byte 0
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@ -33,21 +33,72 @@
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; DW_OP_GNU_push_tls_address
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; CHECK-NEXT: .byte 224
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; FISSION: DW_TAG_variable
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; FISSION: .byte 2 # DW_AT_location
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; DW_OP_GNU_addr_index
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; FISSION-NEXT: .byte 251
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; FISSION-NEXT: .byte 1
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; FISSION: DW_TAG_template_value_parameter
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; FISSION: .byte 3 # DW_AT_location
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; DW_OP_GNU_addr_index
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; FISSION-NEXT: .byte 251
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; FIXME: This should be '1' to share the address table entry with the variable location above
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; FISSION-NEXT: .byte 2
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; DW_OP_stack_value
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; FISSION-NEXT: .byte 159
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; check that the expected TLS address description is the first thing in the debug_addr section
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; FISSION: .section .debug_addr
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; FISSION-NEXT: .quad tls@DTPOFF
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; FISSION-NEXT: .quad glbl
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; FIXME: Deduplicate the debug_addr list
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; FISSION-NEXT: .quad glbl
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; Generated from:
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; __thread int tls;
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; int glbl;
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;
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; template <int *I>
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; int func() {
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; return 0;
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; }
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;
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; template int func<&glbl>(); // create a second reference to 'glbl'
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@tls = thread_local global i32 0, align 4
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@glbl = global i32 0, align 4
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; Function Attrs: nounwind uwtable
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define weak_odr i32 @_Z4funcIXadL_Z4glblEEEiv() #0 {
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entry:
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ret i32 0, !dbg !18
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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" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!7, !8}
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!llvm.module.flags = !{!15, !16}
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!llvm.ident = !{!17}
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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 !2, metadata !3, metadata !2, metadata !"tls.dwo"} ; [ DW_TAG_compile_unit ] [/tmp/tls.cpp] [DW_LANG_C_plus_plus]
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!1 = metadata !{metadata !"tls.cpp", metadata !"/tmp"}
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!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !12, metadata !2, metadata !"-.dwo"} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/tls.cpp] [DW_LANG_C_plus_plus]
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!1 = metadata !{metadata !"tls.cpp", metadata !"/tmp/dbginfo"}
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!2 = metadata !{}
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!3 = metadata !{metadata !4}
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!4 = metadata !{i32 786484, i32 0, null, metadata !"tls", metadata !"tls", metadata !"", metadata !5, i32 1, metadata !6, i32 0, i32 1, i32* @tls, null} ; [ DW_TAG_variable ] [tls] [line 1] [def]
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!5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/tmp/tls.cpp]
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!6 = 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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!7 = metadata !{i32 2, metadata !"Dwarf Version", i32 3}
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!8 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
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!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"func<&glbl>", metadata !"func<&glbl>", metadata !"_Z4funcIXadL_Z4glblEEEiv", i32 5, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @_Z4funcIXadL_Z4glblEEEiv, metadata !9, null, metadata !2, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [func<&glbl>]
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!5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/tls.cpp]
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!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = metadata !{metadata !8}
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!8 = 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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!9 = metadata !{metadata !10}
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!10 = metadata !{i32 786480, null, metadata !"I", metadata !11, i32* @glbl, null, i32 0, i32 0} ; [ DW_TAG_template_value_parameter ]
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!11 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !8} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from int]
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!12 = metadata !{metadata !13, metadata !14}
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!13 = metadata !{i32 786484, i32 0, null, metadata !"tls", metadata !"tls", metadata !"", metadata !5, i32 1, metadata !8, i32 0, i32 1, i32* @tls, null} ; [ DW_TAG_variable ] [tls] [line 1] [def]
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!14 = metadata !{i32 786484, i32 0, null, metadata !"glbl", metadata !"glbl", metadata !"", metadata !5, i32 2, metadata !8, i32 0, i32 1, i32* @glbl, null} ; [ DW_TAG_variable ] [glbl] [line 2] [def]
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!15 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
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!16 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
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!17 = metadata !{metadata !"clang version 3.5 "}
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!18 = metadata !{i32 6, i32 0, metadata !4, null}
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