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87c77233df
Since r241097, `DIBuilder` has only created distinct `DICompileUnit`s.
The backend is liable to start relying on that (if it hasn't already),
so make uniquable `DICompileUnit`s illegal and automatically upgrade old
bitcode. This is a nice cleanup, since we can remove an unnecessary
`DenseSet` (and the associated uniquing info) from `LLVMContextImpl`.
Almost all the testcases were updated with this script:
git grep -e '= !DICompileUnit' -l -- test |
grep -v test/Bitcode |
xargs sed -i '' -e 's,= !DICompileUnit,= distinct !DICompileUnit,'
I imagine something similar should work for out-of-tree testcases.
llvm-svn: 243885
77 lines
3.3 KiB
LLVM
77 lines
3.3 KiB
LLVM
; RUN: llc -filetype=asm -O0 -mtriple=x86_64-linux-gnu < %s | FileCheck %s
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; RUN: llc -filetype=obj -O0 %s -mtriple=x86_64-linux-gnu -o %t
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; RUN: llvm-dwarfdump %t | FileCheck %s -check-prefix=CHECK-DWARF
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; RUN: llc -filetype=asm -O0 -mtriple=x86_64-apple-darwin < %s | FileCheck --check-prefix=DARWIN-ASM %s
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; RUN: llc -filetype=obj %s -mtriple=x86_64-apple-darwin -o %t2
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; RUN: llvm-dwarfdump %t2 | FileCheck %s -check-prefix=DARWIN-DWARF
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; Testing case generated from:
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; clang++ tu1.cpp tu2.cpp -g -emit-llvm -c
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; llvm-link tu1.bc tu2.bc -o tu12.ll -S
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; cat hdr.h
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; struct foo {
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; };
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; cat tu1.cpp
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; #include "hdr.h"
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; foo f;
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; cat tu2.cpp
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; #include "hdr.h"
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; foo g;
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; Make sure we use relocation for ref_addr on non-darwin platforms.
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; CHECK: DW_TAG_compile_unit
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; CHECK: DW_TAG_variable
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; CHECK: .long [[TYPE:.*]] # DW_AT_type
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; CHECK: DW_TAG_structure_type
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; CHECK: cu_begin1
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; CHECK: DW_TAG_compile_unit
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; CHECK-NOT: DW_TAG_structure_type
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; This variable's type is in the 1st CU.
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; CHECK: DW_TAG_variable
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; Make sure this is relocatable.
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; CHECK: .quad .Lsection_info+[[TYPE]] # DW_AT_type
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; CHECK-NOT: DW_TAG_structure_type
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; CHECK: .section
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; test that we don't create useless labels
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; DARWIN-ASM: .long [[TYPE:.*]] ## DW_AT_type
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; DARWIN-ASM: .quad [[TYPE]] ## DW_AT_type
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; CHECK-DWARF: DW_TAG_compile_unit
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; CHECK-DWARF: 0x[[ADDR:.*]]: DW_TAG_structure_type
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; CHECK-DWARF: DW_TAG_compile_unit
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; CHECK-DWARF: DW_TAG_variable
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; CHECK-DWARF: DW_AT_type [DW_FORM_ref_addr] {{.*}}[[ADDR]])
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; DARWIN-DWARF: DW_TAG_compile_unit
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; DARWIN-DWARF: 0x[[ADDR:.*]]: DW_TAG_structure_type
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; DARWIN-DWARF: DW_TAG_compile_unit
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; DARWIN-DWARF: DW_TAG_variable
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; DARWIN-DWARF: DW_AT_type [DW_FORM_ref_addr] {{.*}}[[ADDR]])
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%struct.foo = type { i8 }
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@f = global %struct.foo zeroinitializer, align 1
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@g = global %struct.foo zeroinitializer, align 1
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!llvm.dbg.cu = !{!0, !9}
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!llvm.module.flags = !{!14, !15}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 (trunk 191799)", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !3, subprograms: !2, globals: !6, imports: !2)
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!1 = !DIFile(filename: "tu1.cpp", directory: "/Users/manmanren/test-Nov/type_unique_air/ref_addr")
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!2 = !{}
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!3 = !{!4}
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!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", line: 1, size: 8, align: 8, file: !5, elements: !2, identifier: "_ZTS3foo")
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!5 = !DIFile(filename: "./hdr.h", directory: "/Users/manmanren/test-Nov/type_unique_air/ref_addr")
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!6 = !{!7}
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!7 = !DIGlobalVariable(name: "f", line: 2, isLocal: false, isDefinition: true, scope: null, file: !8, type: !4, variable: %struct.foo* @f)
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!8 = !DIFile(filename: "tu1.cpp", directory: "/Users/manmanren/test-Nov/type_unique_air/ref_addr")
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!9 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 (trunk 191799)", isOptimized: false, emissionKind: 0, file: !10, enums: !2, retainedTypes: !3, subprograms: !2, globals: !11, imports: !2)
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!10 = !DIFile(filename: "tu2.cpp", directory: "/Users/manmanren/test-Nov/type_unique_air/ref_addr")
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!11 = !{!12}
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!12 = !DIGlobalVariable(name: "g", line: 2, isLocal: false, isDefinition: true, scope: null, file: !13, type: !4, variable: %struct.foo* @g)
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!13 = !DIFile(filename: "tu2.cpp", directory: "/Users/manmanren/test-Nov/type_unique_air/ref_addr")
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!14 = !{i32 2, !"Dwarf Version", i32 2}
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!15 = !{i32 1, !"Debug Info Version", i32 3}
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