[llvm] [DebugInfo] Only create DIEs of concrete functions (PR #90523)

[David Blaikie via llvm-commits]

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+; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump -debug-info - | FileCheck --implicit-check-not "{{DW_TAG|NULL}}" %s
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+; RUN: %llc_dwarf --try-experimental-debuginfo-iterators -O0 -filetype=obj < %s | llvm-dwarfdump -debug-info - | FileCheck --implicit-check-not "{{DW_TAG|NULL}}" %s
+
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dwblaikie wrote:

some instructions on how to reproduce the IR would be good - just the clang command line or whatever (which optimizations, etc)

https://github.com/llvm/llvm-project/pull/90523