[all-commits] [llvm/llvm-project] fafc6e: [IRGen] Emit lifetime intrinsics around temporary ...

[Erik Pilkington via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: fafc6e4fdf3673dcf557d6c8ae0c0a4bb3184402
      https://github.com/llvm/llvm-project/commit/fafc6e4fdf3673dcf557d6c8ae0c0a4bb3184402
  Author: Erik Pilkington <erik.pilkington at gmail.com>
  Date:   2020-02-07 (Fri, 07 Feb 2020)

  Changed paths:
    M clang/lib/CodeGen/CGCall.cpp
    M clang/lib/CodeGen/CGCall.h
    A clang/test/CodeGen/lifetime-call-temp.c
    M clang/test/CodeGenCXX/stack-reuse-miscompile.cpp

  Log Message:
  -----------
  [IRGen] Emit lifetime intrinsics around temporary aggregate argument allocas

These temporaries are only used in the callee, and their memory can be reused
after the call is complete.

rdar://58552124

Differential revision: https://reviews.llvm.org/D74094