[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, 0 insertions, 5 deletions

diff --git a/llvm/lib/IR/DebugInfo.cpp b/llvm/lib/IR/DebugInfo.cpp
index e6b1f76..196fe294 100644
--- a/llvm/lib/IR/DebugInfo.cpp
+++ b/llvm/lib/IR/DebugInfo.cpp
@@ -586,11 +586,6 @@ bool llvm::stripDebugInfo(Function &F) {
   DenseMap<MDNode *, MDNode *> LoopIDsMap;
   for (BasicBlock &BB : F) {
     for (Instruction &I : llvm::make_early_inc_range(BB)) {
-      if (isa<DbgInfoIntrinsic>(&I)) {
-        I.eraseFromParent();
-        Changed = true;
-        continue;
-      }
       if (I.getDebugLoc()) {
         Changed = true;
         I.setDebugLoc(DebugLoc());