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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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219010 91177308-0d34-0410-b5e6-96231b3b80d8
43 lines
2.1 KiB
LLVM
43 lines
2.1 KiB
LLVM
; REQUIRES: object-emission
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; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t
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; RUN: llvm-dwarfdump %t | FileCheck %s
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; Also test that the null streamer doesn't crash with debug info.
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; RUN: %llc_dwarf -O0 -filetype=null < %s
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; generated from the following source compiled to bitcode with clang -g -O1
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; static int i;
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; int main() {
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; (void)&i;
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; }
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; CHECK: debug_info contents
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; CHECK: DW_TAG_variable
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; Function Attrs: nounwind readnone uwtable
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define i32 @main() #0 {
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entry:
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ret i32 0, !dbg !12
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}
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attributes #0 = { nounwind readnone uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!11, !13}
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!0 = metadata !{metadata !"0x11\004\00clang version 3.4 \001\00\000\00\000", metadata !1, metadata !2, metadata !2, metadata !3, metadata !9, metadata !2} ; [ DW_TAG_compile_unit ] [/tmp/global.cpp] [DW_LANG_C_plus_plus]
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!1 = metadata !{metadata !"global.cpp", metadata !"/tmp"}
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!2 = metadata !{}
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!3 = metadata !{metadata !4}
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!4 = metadata !{metadata !"0x2e\00main\00main\00\002\000\001\000\006\00256\001\002", metadata !1, metadata !5, metadata !6, null, i32 ()* @main, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 2] [def] [main]
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!5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/tmp/global.cpp]
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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 !{metadata !8}
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!8 = 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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!9 = metadata !{metadata !10}
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!10 = metadata !{metadata !"0x34\00i\00i\00_ZL1i\001\001\001", null, metadata !5, metadata !8, null, null} ; [ DW_TAG_variable ]
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!11 = metadata !{i32 2, metadata !"Dwarf Version", i32 3}
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!12 = metadata !{i32 4, i32 0, metadata !4, null}
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!13 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
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