[llvm] a93a4ec - Reapply "[DebugInfo][RemoveDIs] Turn on non-instrinsic debug-info by default"

[Orlando Cazalet-Hyams via llvm-commits]

Author: Orlando Cazalet-Hyams
Date: 2024-02-14T16:15:38Z
New Revision: a93a4ec7dd205b965ee5597314bb376520cd736c

URL: https://github.com/llvm/llvm-project/commit/a93a4ec7dd205b965ee5597314bb376520cd736c
DIFF: https://github.com/llvm/llvm-project/commit/a93a4ec7dd205b965ee5597314bb376520cd736c.diff

LOG: Reapply "[DebugInfo][RemoveDIs] Turn on non-instrinsic debug-info by default"

This reapplies commit bdde5f9 by undoing the revert fd3a0c185f17.

The previous reapplication d759618df763 was reverted due to a crash
(reproducer in comments for d759618df763) which was fixed in #81737.

As noted in the original commit, this commit may break downstream tests.
If this commit is breaking your downstream tests, please see comment 12 in
[0], which documents the kind of variation in tests we'd expect to see from
this change and what to do about it.

[0] https://discourse.llvm.org/t/rfc-instruction-api-changes-needed-to-eliminate-debug-intrinsics-from-ir/68939

Added: 
    

Modified: 
    llvm/lib/IR/BasicBlock.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/IR/BasicBlock.cpp b/llvm/lib/IR/BasicBlock.cpp
index fe9d0d08c5fe97..bf02eba9fb448d 100644
--- a/llvm/lib/IR/BasicBlock.cpp
+++ b/llvm/lib/IR/BasicBlock.cpp
@@ -34,7 +34,7 @@ cl::opt<bool>
     UseNewDbgInfoFormat("experimental-debuginfo-iterators",
                         cl::desc("Enable communicating debuginfo positions "
                                  "through iterators, eliminating intrinsics"),
-                        cl::init(false));
+                        cl::init(true));
 
 DPMarker *BasicBlock::createMarker(Instruction *I) {
   assert(IsNewDbgInfoFormat &&