[llvm] [InstCombine] Retain debug information on store to null instruction (PR #86105)

[Abinaya Saravanan via llvm-commits]

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@@ -0,0 +1,30 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
+; Verify whether debug information is attached to the store to null/undef instruction
+; !dbg should be present at the end of "store to null" instruction
+; RUN: opt -S -passes='instcombine' < %s | FileCheck %s > /dev/null
+
+source_filename = "test.ll"
+target triple = "hexagon"
+
+define void @_Z3foov() {
+; CHECK-LABEL: define void @_Z3foov() {
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    store i1 true, ptr poison, align 1, !dbg
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quic-asaravan wrote:

@nikic I have updated the lit test. Can you please review it?

https://github.com/llvm/llvm-project/pull/86105