llvm-6502/test/CodeGen/Generic/dbg_value.ll
Duncan P. N. Exon Smith 83902832de Revert "Revert "DI: Fold constant arguments into a single MDString""
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
2014-10-03 20:01:09 +00:00

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453 B
LLVM

; RUN: llc < %s
; rdar://7759395
%0 = type { i32, i32 }
define void @t(%0*, i32, i32, i32, i32) nounwind {
tail call void @llvm.dbg.value(metadata !{%0* %0}, i64 0, metadata !0, metadata !{metadata !"0x102"})
unreachable
}
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
; !0 should conform to the format of DIVariable.
!0 = metadata !{metadata !"0x101\00a\000\000", null, null, null} ; [ DW_TAG_arg_variable ]