[PATCH] D141381: [codegen] Store address of indirect arguments on the stack

[Felipe de Azevedo Piovezan via Phabricator via cfe-commits]

fdeazeve added a comment.

In hindsight, this should have been obvious.
While SROA will not touch this:

  define @foo(ptr %arg) {
     call void @llvm.dbg.declare(%arg, [...], metadata !DIExpression())

It completely destroys the debug information provided by:

  define @foo(ptr %arg) {
     %ptr_storage = alloca ptr
     store ptr %arg, ptr %ptr_storage
     call void @llvm.dbg.declare(%ptr_storage, [...], metadata !DIExpression(DW_OP_deref))


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D141381/new/

https://reviews.llvm.org/D141381