From: Rui Ueyama <ruiu@google.com>
Date: Tue, 31 Jul 2018 18:04:58 +0000 (+0000)
Subject: Make ICF log output order deterministic.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2c3c78e685eeaed179014d9d5fc6e279ca28b70a;p=llvm

Make ICF log output order deterministic.

This patch does the same thing as r338153 for COFF.
Note that this patch affects only the order of log messages.
The output file is already deterministic.

Differential Revision: https://reviews.llvm.org/D50023

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@338406 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Support/xxhash.h b/include/llvm/Support/xxhash.h
index f7ca460188a..6fd67ff9ce1 100644
--- a/include/llvm/Support/xxhash.h
+++ b/include/llvm/Support/xxhash.h
@@ -38,10 +38,12 @@
 #ifndef LLVM_SUPPORT_XXHASH_H
 #define LLVM_SUPPORT_XXHASH_H
 
+#include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/StringRef.h"
 
 namespace llvm {
 uint64_t xxHash64(llvm::StringRef Data);
+uint64_t xxHash64(llvm::ArrayRef<uint8_t> Data);
 }
 
 #endif
diff --git a/lib/Support/xxhash.cpp b/lib/Support/xxhash.cpp
index df643f9bd63..e9dceed2c4a 100644
--- a/lib/Support/xxhash.cpp
+++ b/lib/Support/xxhash.cpp
@@ -132,3 +132,7 @@ uint64_t llvm::xxHash64(StringRef Data) {
 
   return H64;
 }
+
+uint64_t llvm::xxHash64(ArrayRef<uint8_t> Data) {
+  return xxHash64({(const char *)Data.data(), Data.size()});
+}