[clangd] Remove ignored Preamble::CanReuse call from completion

Summary:
Now that the clients who relied on stats for files from preamble are
gone.

Reviewers: ioeric, sammccall

Reviewed By: ioeric

Subscribers: klimek, MaskRay, jkorous, cfe-commits

Differential Revision: https://reviews.llvm.org/D47066

llvm-svn: 332976

1 files changed, 2 insertions, 12 deletions

diff --git a/clang-tools-extra/clangd/CodeComplete.cpp b/clang-tools-extra/clangd/CodeComplete.cpp
index 1b1020a9888..af220f220d4 100644
--- a/clang-tools-extra/clangd/CodeComplete.cpp
+++ b/clang-tools-extra/clangd/CodeComplete.cpp
@@ -654,21 +654,11 @@ bool semaCodeComplete(std::unique_ptr<CodeCompleteConsumer> Consumer,
   std::unique_ptr<llvm::MemoryBuffer> ContentsBuffer =
       llvm::MemoryBuffer::getMemBufferCopy(Input.Contents, Input.FileName);
 
+  // The diagnostic options must be set before creating a CompilerInstance.
+  CI->getDiagnosticOpts().IgnoreWarnings = true;
   // We reuse the preamble whether it's valid or not. This is a
   // correctness/performance tradeoff: building without a preamble is slow, and
   // completion is latency-sensitive.
-  if (Input.Preamble) {
-    auto Bounds =
-        ComputePreambleBounds(*CI->getLangOpts(), ContentsBuffer.get(), 0);
-    // FIXME(ibiryukov): Remove this call to CanReuse() after we'll fix
-    // clients relying on getting stats for preamble files during code
-    // completion.
-    // Note that results of CanReuse() are ignored, see the comment above.
-    Input.Preamble->CanReuse(*CI, ContentsBuffer.get(), Bounds,
-                             Input.VFS.get());
-  }
-  // The diagnostic options must be set before creating a CompilerInstance.
-  CI->getDiagnosticOpts().IgnoreWarnings = true;
   auto Clang = prepareCompilerInstance(
       std::move(CI), Input.Preamble, std::move(ContentsBuffer),
       std::move(Input.PCHs), std::move(Input.VFS), DummyDiagsConsumer);