[NFC][RemoveDIs] Use iterators over inst-pointers when using IRBuilder

This patch adds a two-argument SetInsertPoint method to IRBuilder that
takes a block/iterator instead of an instruction, and updates many call
sites to use it. The motivating reason for doing this is given here [0],
we'd like to pass around more information about the position of debug-info
in the iterator object. That necessitates passing iterators around most of
the time.

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

Differential Revision: https://reviews.llvm.org/D152468

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Transforms/Utils/InlineFunction.cpp b/llvm/lib/Transforms/Utils/InlineFunction.cpp
index 744766b..56bc90a 100644
--- a/llvm/lib/Transforms/Utils/InlineFunction.cpp
+++ b/llvm/lib/Transforms/Utils/InlineFunction.cpp
@@ -2439,7 +2439,7 @@ llvm::InlineResult llvm::InlineFunction(CallBase &CB, InlineFunctionInfo &IFI,
   // `Caller->isPresplitCoroutine()` would affect AlwaysInliner at O0 only.
   if ((InsertLifetime || Caller->isPresplitCoroutine()) &&
       !IFI.StaticAllocas.empty()) {
-    IRBuilder<> builder(&FirstNewBlock->front());
+    IRBuilder<> builder(&*FirstNewBlock, FirstNewBlock->begin());
     for (unsigned ai = 0, ae = IFI.StaticAllocas.size(); ai != ae; ++ai) {
       AllocaInst *AI = IFI.StaticAllocas[ai];
       // Don't mark swifterror allocas. They can't have bitcast uses.