Update prebuilt Clang to r416183b from Android.
https://android.googlesource.com/platform/prebuilts/clang/host/
linux-x86/+/06a71ddac05c22edb2d10b590e1769b3f8619bef
clang 12.0.5 (based on r416183b) from build 7284624.
Change-Id: I277a316abcf47307562d8b748b84870f31a72866
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/linux-x64/clang/include/llvm/CodeGen/GlobalISel/LostDebugLocObserver.h b/linux-x64/clang/include/llvm/CodeGen/GlobalISel/LostDebugLocObserver.h
new file mode 100644
index 0000000..cd2a871
--- /dev/null
+++ b/linux-x64/clang/include/llvm/CodeGen/GlobalISel/LostDebugLocObserver.h
@@ -0,0 +1,50 @@
+//===----- llvm/CodeGen/GlobalISel/LostDebugLocObserver.h -------*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+/// Tracks DebugLocs between checkpoints and verifies that they are transferred.
+//
+//===----------------------------------------------------------------------===//
+#ifndef LLVM_CODEGEN_GLOBALISEL_LOSTDEBUGLOCOBSERVER_H
+#define LLVM_CODEGEN_GLOBALISEL_LOSTDEBUGLOCOBSERVER_H
+
+#include "llvm/ADT/SmallSet.h"
+#include "llvm/CodeGen/GlobalISel/GISelChangeObserver.h"
+
+namespace llvm {
+class LostDebugLocObserver : public GISelChangeObserver {
+ StringRef DebugType;
+ SmallSet<DebugLoc, 4> LostDebugLocs;
+ SmallPtrSet<MachineInstr *, 4> PotentialMIsForDebugLocs;
+ unsigned NumLostDebugLocs = 0;
+
+public:
+ LostDebugLocObserver(StringRef DebugType) : DebugType(DebugType) {}
+
+ unsigned getNumLostDebugLocs() const { return NumLostDebugLocs; }
+
+ /// Call this to indicate that it's a good point to assess whether locations
+ /// have been lost. Typically this will be when a logical change has been
+ /// completed such as the caller has finished replacing some instructions with
+ /// alternatives. When CheckDebugLocs is true, the locations will be checked
+ /// to see if any have been lost since the last checkpoint. When
+ /// CheckDebugLocs is false, it will just reset ready for the next checkpoint
+ /// without checking anything. This can be helpful to limit the detection to
+ /// easy-to-fix portions of an algorithm before allowing more difficult ones.
+ void checkpoint(bool CheckDebugLocs = true);
+
+ void createdInstr(MachineInstr &MI) override;
+ void erasingInstr(MachineInstr &MI) override;
+ void changingInstr(MachineInstr &MI) override;
+ void changedInstr(MachineInstr &MI) override;
+
+private:
+ void analyzeDebugLocations();
+};
+
+} // namespace llvm
+#endif // ifndef LLVM_CODEGEN_GLOBALISEL_LOSTDEBUGLOCOBSERVER_H