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c1be4794ba
This reverts commit r218918, effectively reapplying r218914 after fixing an Ocaml bindings test and an Asan crash. The root cause of the latter was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a PR to investigate who requires the loose check (and why). Original commit message follows. -- This patch addresses the first stage of PR17891 by folding constant arguments together into a single MDString. Integers are stringified and a `\0` character is used as a separator. Part of PR17891. Note: I've attached my testcases upgrade scripts to the PR. If I've just broken your out-of-tree testcases, they might help. llvm-svn: 219010
59 lines
3.7 KiB
LLVM
59 lines
3.7 KiB
LLVM
; RUN: opt -strip-dead-debug-info -verify %s -S | FileCheck %s
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; CHECK: ModuleID = '{{.*}}'
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; CHECK-NOT: bar
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; CHECK-NOT: abcd
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@xyz = global i32 2
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #0
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; Function Attrs: nounwind readnone ssp
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define i32 @fn() #1 {
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entry:
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ret i32 0, !dbg !18
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}
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; Function Attrs: nounwind readonly ssp
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define i32 @foo(i32 %i) #2 {
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entry:
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tail call void @llvm.dbg.value(metadata !{i32 %i}, i64 0, metadata !15, metadata !{}), !dbg !20
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%.0 = load i32* @xyz, align 4
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ret i32 %.0, !dbg !21
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}
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attributes #0 = { nounwind readnone }
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attributes #1 = { nounwind readnone ssp }
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attributes #2 = { nounwind readonly ssp }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!25}
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!0 = metadata !{metadata !"0x11\001\004.2.1 (Based on Apple Inc. build 5658) (LLVM build)\001\00\000\00\001", metadata !1, metadata !2, metadata !2, metadata !23, metadata !24, null} ; [ DW_TAG_compile_unit ] [/tmp//g.c] [DW_LANG_C89]
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!1 = metadata !{metadata !"g.c", metadata !"/tmp/"}
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!2 = metadata !{null}
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!3 = metadata !{metadata !"0x2e\00bar\00bar\00\005\001\001\000\006\000\001\000", metadata !1, null, metadata !4, null, null, null, null, null} ; [ DW_TAG_subprogram ] [line 5] [local] [def] [scope 0] [bar]
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!4 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !1, metadata !5, null, metadata !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/tmp//g.c]
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!6 = metadata !{metadata !"0x2e\00fn\00fn\00fn\006\000\001\000\006\000\001\000", metadata !1, null, metadata !7, null, i32 ()* @fn, null, null, null} ; [ DW_TAG_subprogram ] [line 6] [def] [scope 0] [fn]
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!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !1, metadata !5, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!8 = metadata !{metadata !9}
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!9 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", metadata !1, metadata !5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
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!10 = metadata !{metadata !"0x2e\00foo\00foo\00foo\007\000\001\000\006\000\001\000", metadata !1, null, metadata !11, null, i32 (i32)* @foo, null, null, null} ; [ DW_TAG_subprogram ] [line 7] [def] [scope 0] [foo]
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!11 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !1, metadata !5, null, metadata !12, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!12 = metadata !{metadata !9, metadata !9}
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!13 = metadata !{metadata !"0x100\00bb\005\000", metadata !14, metadata !5, metadata !9} ; [ DW_TAG_auto_variable ]
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!14 = metadata !{metadata !"0xb\005\000\000", metadata !1, metadata !3} ; [ DW_TAG_lexical_block ] [/tmp//g.c]
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!15 = metadata !{metadata !"0x101\00i\007\000", metadata !10, metadata !5, metadata !9} ; [ DW_TAG_arg_variable ]
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!16 = metadata !{metadata !"0x34\00abcd\00abcd\00\002\001\001", metadata !5, metadata !5, metadata !9, null, null} ; [ DW_TAG_variable ]
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!17 = metadata !{metadata !"0x34\00xyz\00xyz\00\003\000\001", metadata !5, metadata !5, metadata !9, i32* @xyz, null} ; [ DW_TAG_variable ]
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!18 = metadata !{i32 6, i32 0, metadata !19, null}
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!19 = metadata !{metadata !"0xb\006\000\000", metadata !1, metadata !6} ; [ DW_TAG_lexical_block ] [/tmp//g.c]
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!20 = metadata !{i32 7, i32 0, metadata !10, null}
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!21 = metadata !{i32 10, i32 0, metadata !22, null}
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!22 = metadata !{metadata !"0xb\007\000\000", metadata !1, metadata !10} ; [ DW_TAG_lexical_block ] [/tmp//g.c]
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!23 = metadata !{metadata !3, metadata !6, metadata !10}
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!24 = metadata !{metadata !16, metadata !17}
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!25 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
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