llvm-6502/invalid-dilocalvariable-arg-negative.ll at testing - llvm-6502 - Applefritter: Git

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Duncan P. N. Exon Smith cbfbb3ee4c DI/Verifier: Fix argument bitrot in DILocalVariable

Add a verifier check that `DILocalVariable`s of tag
`DW_TAG_arg_variable` always have a non-zero 'arg:' field, and those of
tag `DW_TAG_auto_variable` always have a zero 'arg:' field.  These are
the only configurations that are properly understood by the backend.

(Also, fix the bad examples in LangRef and test/Assembler, and fix the
bug in Kaleidoscope Ch8.)

A large number of testcases seem to have bitrotted their way forward
from some ancient version of the debug info hierarchy that didn't have
`arg:` parameters.  If you have out-of-tree testcases that start failing
in the verifier and you don't care enough to get the `arg:` right, you
may have some luck just calling:

    sed -e 's/, arg: 0/, arg: 1/'

or some such, but I hand-updated the ones in tree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243183 91177308-0d34-0410-b5e6-96231b3b80d8

2015-07-24 23:59:25 +00:00

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 ; RUN: not llvm-as < %s 2>&1 | FileCheck %s
 !0 = !DILocalVariable(tag: DW_TAG_arg_variable, scope: !{}, arg: 1)
 !1 = !DILocalVariable(tag: DW_TAG_auto_variable, scope: !{}, arg: 0)
 ; CHECK: <stdin>:[[@LINE+1]]:66: error: expected unsigned integer
 !2 = !DILocalVariable(tag: DW_TAG_arg_variable, scope: !{}, arg: -1)