4 files changed, 9 insertions, 9 deletions
diff --git a/lld/COFF/ICF.cpp b/lld/COFF/ICF.cpp
index 629720901ab..7feb3c4e0b0 100644
--- a/lld/COFF/ICF.cpp
+++ b/lld/COFF/ICF.cpp
@@ -27,6 +27,7 @@
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/Parallel.h"
 #include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/xxhash.h"
 #include <algorithm>
 #include <atomic>
 #include <vector>
@@ -65,13 +66,6 @@ private:
   std::atomic<bool> Repeat = {false};
 };
 
-// Returns a hash value for S.
-uint32_t ICF::getHash(SectionChunk *C) {
-  return hash_combine(C->getOutputCharacteristics(), C->SectionName,
-                      C->Relocs.size(), uint32_t(C->Header->SizeOfRawData),
-                      C->Checksum, C->getContents());
-}
-
 // Returns true if section S is subject of ICF.
 //
 // Microsoft's documentation
@@ -265,7 +259,7 @@ void ICF::run(ArrayRef<Chunk *> Vec) {
   // Initially, we use hash values to partition sections.
   for_each(parallel::par, Chunks.begin(), Chunks.end(), [&](SectionChunk *SC) {
     // Set MSB to 1 to avoid collisions with non-hash classs.
-    SC->Class[0] = getHash(SC) | (1 << 31);
+    SC->Class[0] = xxHash64(SC->getContents()) | (1 << 31);
   });
 
   // From now on, sections in Chunks are ordered so that sections in
diff --git a/lld/ELF/ICF.cpp b/lld/ELF/ICF.cpp
index 53569c27544..075938bd16b 100644
--- a/lld/ELF/ICF.cpp
+++ b/lld/ELF/ICF.cpp
@@ -436,7 +436,7 @@ template <class ELFT> void ICF<ELFT>::run() {
   // Initially, we use hash values to partition sections.
   parallelForEach(Sections, [&](InputSection *S) {
     // Set MSB to 1 to avoid collisions with non-hash IDs.
-    S->Class[0] = xxHash64(toStringRef(S->Data)) | (1U << 31);
+    S->Class[0] = xxHash64(S->Data) | (1U << 31);
   });
 
   // From now on, sections in Sections vector are ordered so that sections
diff --git a/llvm/include/llvm/Support/xxhash.h b/llvm/include/llvm/Support/xxhash.h
index f7ca460188a..6fd67ff9ce1 100644
--- a/llvm/include/llvm/Support/xxhash.h
+++ b/llvm/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/llvm/lib/Support/xxhash.cpp b/llvm/lib/Support/xxhash.cpp
index df643f9bd63..e9dceed2c4a 100644
--- a/llvm/lib/Support/xxhash.cpp
+++ b/llvm/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()});
+}