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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
44 lines
2.2 KiB
LLVM
44 lines
2.2 KiB
LLVM
; RUN: llc %s -mtriple=x86_64-pc-linux-gnu -O0 -filetype=obj -o %t
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; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
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; If stack is realigned, we shouldn't describe locations of local
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; variables by giving offset from the frame pointer (%rbp):
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; push %rpb
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; mov %rsp,%rbp
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; and ALIGNMENT,%rsp ; (%rsp and %rbp are different now)
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; It's better to use offset from %rsp instead.
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; DW_AT_location of variable "x" shouldn't be equal to
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; (DW_OP_fbreg: .*): DW_OP_fbreg has code 0x91
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; CHECK: {{0x.* DW_TAG_variable}}
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; CHECK-NOT: {{DW_AT_location.*DW_FORM_block1.*0x.*91}}
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; CHECK: NULL
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define void @_Z3runv() nounwind uwtable {
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entry:
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%x = alloca i32, align 32
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call void @llvm.dbg.declare(metadata !{i32* %x}, metadata !9, metadata !{metadata !"0x102"}), !dbg !12
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ret void, !dbg !13
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!15}
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!0 = metadata !{metadata !"0x11\004\00clang version 3.2 (trunk 155696:155697) (llvm/trunk 155696)\000\00\000\00\000", metadata !14, metadata !1, metadata !1, metadata !3, metadata !1, metadata !1} ; [ DW_TAG_compile_unit ]
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!1 = metadata !{}
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!3 = metadata !{metadata !5}
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!5 = metadata !{metadata !"0x2e\00run\00run\00_Z3runv\001\000\001\000\006\00256\000\001", metadata !14, metadata !6, metadata !7, null, void ()* @_Z3runv, null, null, metadata !1} ; [ DW_TAG_subprogram ]
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!6 = metadata !{metadata !"0x29", metadata !14} ; [ DW_TAG_file_type ]
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!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, 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 !{null}
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!9 = metadata !{metadata !"0x100\00x\002\000", metadata !10, metadata !6, metadata !11} ; [ DW_TAG_auto_variable ]
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!10 = metadata !{metadata !"0xb\001\0012\000", metadata !14, metadata !5} ; [ DW_TAG_lexical_block ]
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!11 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
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!12 = metadata !{i32 2, i32 7, metadata !10, null}
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!13 = metadata !{i32 3, i32 1, metadata !10, null}
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!14 = metadata !{metadata !"test.cc", metadata !"/home/samsonov/debuginfo"}
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!15 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
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