[all-commits] [llvm/llvm-project] c5ea9b: [test][asan] Make the printf-5.c test case actuall...

[Patrick Walton via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c5ea9b8a51ddcd5121ec1bcad7b034c8aa692f52
      https://github.com/llvm/llvm-project/commit/c5ea9b8a51ddcd5121ec1bcad7b034c8aa692f52
  Author: Patrick Walton <pcwalton at fb.com>
  Date:   2022-10-30 (Sun, 30 Oct 2022)

  Changed paths:
    M compiler-rt/test/asan/TestCases/printf-5.c

  Log Message:
  -----------
  [test][asan] Make the printf-5.c test case actually emit a volatile memcpy.

The current test in printf-5.c appears to try to emit a volatile memcpy for the
format string, but it doesn't because the volatile qualifier is implicitly
casted away. Using a string literal instead preserves the volatile qualifier.

This is a follow-up to D137031 and is a prerequisite for D136822, which elides
memcpys in more instances and would otherwise break this test.

Differential Revision: https://reviews.llvm.org/D137042