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08e687e684
Verify that debug info intrinsic arguments are valid. (These checks
will not recurse through the full debug info graph, so they don't need
to be cordoned of in `DebugInfoVerifier`.)
With those checks in place, changing the `DbgIntrinsicInst` accessors to
downcast to `MDLocalVariable` and `MDExpression` is natural (added isa
specializations in `Metadata.h` to support this).
Added tests to `test/Verifier` for the new -verify checks, and fixed the
debug info in all the in-tree tests.
If you have out-of-tree testcases that have started to fail to -verify,
hopefully the verify checks are helpful. The most likely problem is
that the expression argument is `!{}` (instead of `!MDExpression()`).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232296 91177308-0d34-0410-b5e6-96231b3b80d8
20 lines
819 B
LLVM
20 lines
819 B
LLVM
; RUN: opt < %s -verify -S | FileCheck %s
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; CHECK: DW_LANG_Mips_Assembler
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define void @Foo(i32 %a, i32 %b) {
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entry:
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call void @llvm.dbg.declare(metadata i32* null, metadata !1, metadata !MDExpression())
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ret void
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}
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!5}
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!2 = !MDCompileUnit(language: DW_LANG_Mips_Assembler, producer: "clang version 3.3 ", isOptimized: false, emissionKind: 1, file: !4, enums: !3, retainedTypes: !3, subprograms: !3, globals: !3, imports: !3)
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!3 = !{}
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!0 = !MDLocation(line: 662302, column: 26, scope: !1)
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!1 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "foo")
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!4 = !MDFile(filename: "scratch.cpp", directory: "/usr/local/google/home/blaikie/dev/scratch")
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declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
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!5 = !{i32 1, !"Debug Info Version", i32 3}
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