Update prebuilt Clang to match Android kernel.
Bug: 132428451
Change-Id: I8f6e2cb23f381fc0c02ddea99b867e58e925e5be
diff --git a/linux-x64/clang/include/llvm/Analysis/LoopInfo.h b/linux-x64/clang/include/llvm/Analysis/LoopInfo.h
index 30b29d6..0899630 100644
--- a/linux-x64/clang/include/llvm/Analysis/LoopInfo.h
+++ b/linux-x64/clang/include/llvm/Analysis/LoopInfo.h
@@ -1,9 +1,8 @@
//===- llvm/Analysis/LoopInfo.h - Natural Loop Calculator -------*- C++ -*-===//
//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@@ -408,6 +407,12 @@
/// Verify loop structure of this loop and all nested loops.
void verifyLoopNest(DenseSet<const LoopT *> *Loops) const;
+ /// Returns true if the loop is annotated parallel.
+ ///
+ /// Derived classes can override this method using static template
+ /// polymorphism.
+ bool isAnnotatedParallel() const { return false; }
+
/// Print loop with all the BBs inside it.
void print(raw_ostream &OS, unsigned Depth = 0, bool Verbose = false) const;
@@ -989,6 +994,46 @@
/// Function to print a loop's contents as LLVM's text IR assembly.
void printLoop(Loop &L, raw_ostream &OS, const std::string &Banner = "");
+/// Find and return the loop attribute node for the attribute @p Name in
+/// @p LoopID. Return nullptr if there is no such attribute.
+MDNode *findOptionMDForLoopID(MDNode *LoopID, StringRef Name);
+
+/// Find string metadata for a loop.
+///
+/// Returns the MDNode where the first operand is the metadata's name. The
+/// following operands are the metadata's values. If no metadata with @p Name is
+/// found, return nullptr.
+MDNode *findOptionMDForLoop(const Loop *TheLoop, StringRef Name);
+
+/// Return whether an MDNode might represent an access group.
+///
+/// Access group metadata nodes have to be distinct and empty. Being
+/// always-empty ensures that it never needs to be changed (which -- because
+/// MDNodes are designed immutable -- would require creating a new MDNode). Note
+/// that this is not a sufficient condition: not every distinct and empty NDNode
+/// is representing an access group.
+bool isValidAsAccessGroup(MDNode *AccGroup);
+
+/// Create a new LoopID after the loop has been transformed.
+///
+/// This can be used when no follow-up loop attributes are defined
+/// (llvm::makeFollowupLoopID returning None) to stop transformations to be
+/// applied again.
+///
+/// @param Context The LLVMContext in which to create the new LoopID.
+/// @param OrigLoopID The original LoopID; can be nullptr if the original
+/// loop has no LoopID.
+/// @param RemovePrefixes Remove all loop attributes that have these prefixes.
+/// Use to remove metadata of the transformation that has
+/// been applied.
+/// @param AddAttrs Add these loop attributes to the new LoopID.
+///
+/// @return A new LoopID that can be applied using Loop::setLoopID().
+llvm::MDNode *
+makePostTransformationMetadata(llvm::LLVMContext &Context, MDNode *OrigLoopID,
+ llvm::ArrayRef<llvm::StringRef> RemovePrefixes,
+ llvm::ArrayRef<llvm::MDNode *> AddAttrs);
+
} // End llvm namespace
#endif