[DebugInfo][RemoveDIs] Remove a swathe of debug-intrinsic code (#144389)

Seeing how we can't generate any debug intrinsics any more: delete a
variety of codepaths where they're handled. For the most part these are
plain deletions, in others I've tweaked comments to remain coherent, or
added a type to (what was) type-generic-lambdas.

This isn't all the DbgInfoIntrinsic call sites but it's most of the
simple scenarios.

Co-authored-by: Nikita Popov <github@npopov.com>

1 files changed, 2 insertions, 7 deletions

diff --git a/llvm/lib/Transforms/Utils/InlineFunction.cpp b/llvm/lib/Transforms/Utils/InlineFunction.cpp
index f47c467..7df5e99 100644
--- a/llvm/lib/Transforms/Utils/InlineFunction.cpp
+++ b/llvm/lib/Transforms/Utils/InlineFunction.cpp
@@ -1927,16 +1927,11 @@ static void fixupLineNumbers(Function *Fn, Function::iterator FI,
       }
     }
 
-    // Remove debug info intrinsics if we're not keeping inline info.
+    // Remove debug info records if we're not keeping inline info.
     if (NoInlineLineTables) {
       BasicBlock::iterator BI = FI->begin();
       while (BI != FI->end()) {
-        if (isa<DbgInfoIntrinsic>(BI)) {
-          BI = BI->eraseFromParent();
-          continue;
-        } else {
-          BI->dropDbgRecords();
-        }
+        BI->dropDbgRecords();
         ++BI;
       }
     }