[all-commits] [llvm/llvm-project] eb51dd: [Coroutine] [Debug] Insert dbg.declare to entry.re...

[Chuanqi Xu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: eb51dd719f34be09d21b1ef485edc4209fcf811b
      https://github.com/llvm/llvm-project/commit/eb51dd719f34be09d21b1ef485edc4209fcf811b
  Author: Chuanqi Xu <yedeng.yd at linux.alibaba.com>
  Date:   2021-03-31 (Wed, 31 Mar 2021)

  Changed paths:
    M llvm/include/llvm/Transforms/Coroutines.h
    M llvm/include/llvm/Transforms/Coroutines/CoroSplit.h
    M llvm/lib/Transforms/Coroutines/CoroFrame.cpp
    M llvm/lib/Transforms/Coroutines/CoroInternal.h
    M llvm/lib/Transforms/Coroutines/CoroSplit.cpp
    A llvm/test/Transforms/Coroutines/coro-debug-O2.ll

  Log Message:
  -----------
  [Coroutine] [Debug] Insert dbg.declare to entry.resume to print alloca in the coroutine frame under O2

Summary: Try to insert dbg.declare to entry.resume basic block in resume
function. In this way, we could print alloca such as __promise in
gdb/lldb under O2, which would be beneficial to debug coroutine program.

Test Plan: check-llvm

Reviewed by: aprantl

Differential Revision: https://reviews.llvm.org/D96938