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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
28 lines
1.2 KiB
LLVM
28 lines
1.2 KiB
LLVM
; RUN: llvm-as < %s | llvm-dis | grep " !dbg " | count 4
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define i32 @foo() nounwind ssp {
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entry:
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%retval = alloca i32 ; <i32*> [#uses=2]
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call void @llvm.dbg.func.start(metadata !0)
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store i32 42, i32* %retval, !dbg !3
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br label %0, !dbg !3
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; <label>:0 ; preds = %entry
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call void @llvm.dbg.region.end(metadata !0)
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%1 = load i32* %retval, !dbg !3 ; <i32> [#uses=1]
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ret i32 %1, !dbg !3
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}
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declare void @llvm.dbg.func.start(metadata) nounwind readnone
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declare void @llvm.dbg.region.end(metadata) nounwind readnone
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!llvm.module.flags = !{!6}
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!0 = metadata !{metadata !"0x2e\00foo\00foo\00foo\001\000\001\000\006\000\000\000", i32 0, metadata !1, metadata !2, null, null, null, null} ; [ DW_TAG_subprogram ]
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!1 = metadata !{metadata !"0x11\0012\00clang 1.0\001\00\000\00\000", metadata !4, metadata !5, metadata !5, metadata !4, null, null} ; [ DW_TAG_compile_unit ]
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!2 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, metadata !1} ; [ DW_TAG_base_type ]
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!3 = metadata !{i32 1, i32 13, metadata !1, metadata !1}
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!4 = metadata !{metadata !"foo.c", metadata !"/tmp"}
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!5 = metadata !{i32 0}
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!6 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
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