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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
85 lines
3.7 KiB
LLVM
85 lines
3.7 KiB
LLVM
; RUN: llc -generate-arange-section < %s | FileCheck %s
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; -- header --
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; CHECK: .short 2 # DWARF Arange version number
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; CHECK-NEXT: .long .L.debug_info_begin0
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; CHECK-NEXT: .byte 8 # Address Size (in bytes)
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; CHECK-NEXT: .byte 0 # Segment Size (in bytes)
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; -- alignment --
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; CHECK-NEXT: .zero 4,255
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; <common symbols> - it should have made one span for each symbol.
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; CHECK-NEXT: .quad some_bss
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; CHECK-NEXT: .quad 4
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; <data section> - it should have made one span covering all vars in this CU.
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; CHECK-NEXT: .quad some_data
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; CHECK-NEXT: [[R1:\.[A-Za-z0-9]*]] = .Ldebug_end1-some_data
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; CHECK-NEXT: .quad [[R1]]
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; <text section> - it should have made one span covering all functions in this CU.
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; CHECK-NEXT: .quad .Lfunc_begin0
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; CHECK-NEXT: [[R2:\.[A-Za-z0-9]*]] = .Ldebug_end2-.Lfunc_begin0
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; CHECK-NEXT: .quad [[R2]]
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; <other sections> - it should have made one span covering all vars in this CU.
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; CHECK-NEXT: .quad some_other
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; CHECK-NEXT: [[R3:\.[A-Za-z0-9]*]] = .Ldebug_end3-some_other
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; CHECK-NEXT: .quad [[R3]]
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; -- finish --
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; CHECK-NEXT: # ARange terminator
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; -- source code --
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; Generated from: "clang -c -g -emit-llvm"
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;
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; int some_data = 4;
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; int some_bss;
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; int some_other __attribute__ ((section ("strange+section"))) = 5;
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;
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; void some_code()
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; {
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; some_bss += some_data + some_other;
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; }
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target triple = "x86_64-unknown-linux-gnu"
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@some_data = global i32 4, align 4
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@some_other = global i32 5, section "strange+section", align 4
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@some_bss = common global i32 0, align 4
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define void @some_code() {
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entry:
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%0 = load i32* @some_data, align 4, !dbg !14
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%1 = load i32* @some_other, align 4, !dbg !14
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%add = add nsw i32 %0, %1, !dbg !14
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%2 = load i32* @some_bss, align 4, !dbg !14
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%add1 = add nsw i32 %2, %add, !dbg !14
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store i32 %add1, i32* @some_bss, align 4, !dbg !14
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ret void, !dbg !15
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!13, !16}
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!0 = metadata !{metadata !"0x11\0012\00clang version 3.4 \000\00\000\00\000", metadata !1, metadata !2, metadata !2, metadata !3, metadata !8, metadata !2} ; [ DW_TAG_compile_unit ] [/home/kayamon/test.c] [DW_LANG_C99]
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!1 = metadata !{metadata !"test.c", metadata !"/home/kayamon"}
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!2 = metadata !{}
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!3 = metadata !{metadata !4}
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!4 = metadata !{metadata !"0x2e\00some_code\00some_code\00\005\000\001\000\006\000\000\006", metadata !1, metadata !5, metadata !6, null, void ()* @some_code, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 5] [def] [scope 6] [some_code]
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!5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/home/kayamon/test.c]
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!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = metadata !{null}
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!8 = metadata !{metadata !9, metadata !11, metadata !12}
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!9 = metadata !{metadata !"0x34\00some_data\00some_data\00\001\000\001", null, metadata !5, metadata !10, i32* @some_data, null} ; [ DW_TAG_variable ] [some_data] [line 1] [def]
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!10 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
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!11 = metadata !{metadata !"0x34\00some_other\00some_other\00\003\000\001", null, metadata !5, metadata !10, i32* @some_other, null} ; [ DW_TAG_variable ] [some_other] [line 3] [def]
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!12 = metadata !{metadata !"0x34\00some_bss\00some_bss\00\002\000\001", null, metadata !5, metadata !10, i32* @some_bss, null} ; [ DW_TAG_variable ] [some_bss] [line 2] [def]
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!13 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
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!14 = metadata !{i32 7, i32 0, metadata !4, null}
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!15 = metadata !{i32 8, i32 0, metadata !4, null}
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!16 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
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