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9f52f307c2
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()`).
llvm-svn: 232296
17 lines
501 B
LLVM
17 lines
501 B
LLVM
; RUN: not llvm-as -disable-output <%s 2>&1 | FileCheck %s
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; CHECK: invalid llvm.dbg.value intrinsic expression
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; CHECK-NEXT: call void @llvm.dbg.value({{.*}})
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; CHECK-NEXT: !""
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define void @foo(i32 %a) {
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entry:
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%s = alloca i32
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call void @llvm.dbg.value(metadata i32* %s, i64 0, metadata !MDLocalVariable(tag: DW_TAG_arg_variable), metadata !"")
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ret void
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}
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
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!llvm.module.flags = !{!0}
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!0 = !{i32 2, !"Debug Info Version", i32 3}
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