[lld] [LLD][COFF] Deduplicate common chunks when linking COFF files. (PR #162553)

[Martin Storsjö via llvm-commits]

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@@ -0,0 +1,38 @@
+; REQUIRES: x86
+; RUN: split-file %s %t.dir
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mstorsjo wrote:

Does `split-file` automatically make the output directory if it is missing? Wasn't aware of that.

Still, it may be good style to do a preemptive `rm -rf %t.dir` before this, in case there's incompatible leftover files from an earlier round.

https://github.com/llvm/llvm-project/pull/162553