[llvm] [InstrRef] Skip clobbered EntryValue register recovery (PR #142478)

[Jeremy Morse via llvm-commits]

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@@ -0,0 +1,50 @@
+# RUN: llc --run-pass=livedebugvalues -o - %s | FileCheck %s
+# REQUIRES: x86-registered-target
+
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jmorse wrote:

Could you add a comment indicating that this covers the scenario where a DBG_VALUE created prior to LiveDebugValues has an entry-value expression -- it's a subtle distinction, which we should highlight whenever it comes up. (Same with the other test below).

https://github.com/llvm/llvm-project/pull/142478