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83902832de
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
65 lines
3.1 KiB
LLVM
65 lines
3.1 KiB
LLVM
; REQUIRES: object-emission
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; PR 19261
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; RUN: %llc_dwarf -fast-isel=false -O0 -filetype=obj %s -o %t
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; RUN: llvm-dwarfdump %t | FileCheck %s
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; CHECK: {{0x[0-9a-f]+}} 1 0 1 0 0 is_stmt
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; CHECK: {{0x[0-9a-f]+}} 2 0 1 0 0 is_stmt
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; CHECK: {{0x[0-9a-f]+}} 4 0 1 0 0 is_stmt
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; IR generated from clang -O0 -g with the following source:
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;void foo(int i){
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; switch(i){
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; default:
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; break;
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; }
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; return;
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;}
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; Function Attrs: nounwind
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define void @foo(i32 %i) #0 {
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entry:
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%i.addr = alloca i32, align 4
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store i32 %i, i32* %i.addr, align 4
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call void @llvm.dbg.declare(metadata !{i32* %i.addr}, metadata !12, metadata !{metadata !"0x102"}), !dbg !13
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%0 = load i32* %i.addr, align 4, !dbg !14
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switch i32 %0, label %sw.default [
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], !dbg !14
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sw.default: ; preds = %entry
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br label %sw.epilog, !dbg !15
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sw.epilog: ; preds = %sw.default
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ret void, !dbg !17
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!9, !10}
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!llvm.ident = !{!11}
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!0 = metadata !{metadata !"0x11\0012\00clang version 3.5.0 (204712)\000\00\000\00\001", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [D:\work\EPRs\396363/test.c] [DW_LANG_C99]
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!1 = metadata !{metadata !"test.c", metadata !"D:\5Cwork\5CEPRs\5C396363"}
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!2 = metadata !{}
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!3 = metadata !{metadata !4}
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!4 = metadata !{metadata !"0x2e\00foo\00foo\00\001\000\001\000\006\00256\000\001", metadata !1, metadata !5, metadata !6, null, void (i32)* @foo, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
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!5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [D:\work\EPRs\396363/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, 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 !{i32 2, metadata !"Dwarf Version", i32 4}
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!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
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!11 = metadata !{metadata !"clang version 3.5.0 (204712)"}
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!12 = metadata !{metadata !"0x101\00i\0016777217\000", metadata !4, metadata !5, metadata !8} ; [ DW_TAG_arg_variable ] [i] [line 1]
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!13 = metadata !{i32 1, i32 0, metadata !4, null}
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!14 = metadata !{i32 2, i32 0, metadata !4, null}
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!15 = metadata !{i32 4, i32 0, metadata !16, null}
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!16 = metadata !{metadata !"0xb\002\000\000", metadata !1, metadata !4} ; [ DW_TAG_lexical_block ] [D:\work\EPRs\396363/test.c]
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!17 = metadata !{i32 6, i32 0, metadata !4, null}
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