[llvm] [DebugInfo][InstrRef] Treat ORRWrr as a copy instr (PR #123102)

[Adrian Prantl via llvm-commits]

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@@ -0,0 +1,102 @@
+; RUN: llc -O2 -experimental-debug-variable-locations %s -stop-after=livedebugvalues -mtriple=arm64-apple-macosx15.0.0 -o - | FileCheck %s
+
+; CHECK: $w{{[0-9]+}} = ORRWrs $wzr, killed $w{{[0-9]+}}, 0
+; CHECK-NEXT: DBG_INSTR_REF !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(3, 0), debug-location !{{[0-9]+}}
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adrian-prantl wrote:

hardcoding the `3` here looks potentially fragile

https://github.com/llvm/llvm-project/pull/123102