[llvm] [PGO] Add option to always instrumenting loop entries (PR #116789)

[Ellis Hoag via llvm-commits]

================
@@ -0,0 +1,62 @@
+; RUN: opt %s -passes=pgo-instr-gen -pgo-instrument-loop-entries=false -S | FileCheck %s --check-prefixes=GEN,NOTLOOPENTRIES
----------------
ellishg wrote:

Can you also add a test that we can consume these profiles with loop entries?

https://github.com/llvm/llvm-project/pull/116789