[clang] [lld] [llvm] [Windows] Add support for emitting PGO/LTO magic strings in the Windows PE debug directory (PR #114260)

[Tobias Hieta via cfe-commits]

================
@@ -0,0 +1,13 @@
+// This test checks if Window PE file compiled with -flto option contains a magic 
+// string "LTCG" to indicate LTO compilation.
+
+// REQUIRES: system-windows
+
+// RUN: %clang --target=x86_64-pc-windows-msvc -flto -fuse-ld=lld %s -o %t.exe
----------------
tru wrote:

llvm-test-suite is the right place for that. And I think it should be in use, just not as much as the normal test suite. 

https://github.com/llvm/llvm-project/pull/114260