llvm-mirror/bug_null_debuginfo.ll at 2f4773263daf4f9580a8ed63dbaa4b54828485ae - llvm-mirror - Git.je (Gitea)

RPCS3/llvm-mirror

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Duncan P. N. Exon Smith c1be4794ba 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.

llvm-svn: 219010

2014-10-03 20:01:09 +00:00

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 ; RUN: llc < %s
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!2}
 !0 = metadata !{metadata !"0x11\0012\00\000\00\000\00\000", metadata !1, null, null, null,  null, null} ; [ DW_TAG_compile_unit ]
 !1 = metadata !{metadata !"t", metadata !""}
 !2 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}