[all-commits] [llvm/llvm-project] cee4a1: Improve support of GNU mempcpy

[serge-sans-paille via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: cee4a1c957426e9477c8579ff960c8c2bd4af9e2
      https://github.com/llvm/llvm-project/commit/cee4a1c957426e9477c8579ff960c8c2bd4af9e2
  Author: serge-sans-paille <sguelton at redhat.com>
  Date:   2020-01-09 (Thu, 09 Jan 2020)

  Changed paths:
    M clang/include/clang/Basic/Builtins.def
    M clang/lib/AST/Decl.cpp
    M clang/lib/CodeGen/CGBuiltin.cpp
    M clang/lib/Sema/SemaChecking.cpp
    M clang/test/Analysis/bstring.c
    A clang/test/CodeGen/mempcpy-libcall.c

  Log Message:
  -----------
  Improve support of GNU mempcpy

- Lower to the memcpy intrinsic
- Raise warnings when size/bounds are known

Differential Revision: https://reviews.llvm.org/D71374