Merge "Switch to clang-3688880." am: d12816b100 am: 627565d961 am: 0341eb0a7c
am: 635dfdc07a

Change-Id: Ib7e62abfa67188ab881580502c67016493512132
diff --git a/core/clang/versions.mk b/core/clang/versions.mk
index 711e5a4..abed69b 100644
--- a/core/clang/versions.mk
+++ b/core/clang/versions.mk
@@ -1,4 +1,4 @@
 ## Clang/LLVM release versions.
 
-LLVM_PREBUILTS_VERSION ?= clang-3289846
+LLVM_PREBUILTS_VERSION ?= clang-3688880
 LLVM_PREBUILTS_BASE ?= prebuilts/clang/host