Author: Fangrui Song Date: 2024-06-20T23:26:15-07:00 New Revision: 12c0281f8c73bc1aa20d1517357e0e12c3f8bb4e
URL: https://github.com/llvm/llvm-project/commit/12c0281f8c73bc1aa20d1517357e0e12c3f8bb4e DIFF: https://github.com/llvm/llvm-project/commit/12c0281f8c73bc1aa20d1517357e0e12c3f8bb4e.diff LOG: [Lex] Replace hash_combine with a stable hash Added: Modified: clang/lib/Lex/HeaderSearch.cpp Removed: ################################################################################ diff --git a/clang/lib/Lex/HeaderSearch.cpp b/clang/lib/Lex/HeaderSearch.cpp index 3bd3aa447ff40..c3b3064cfbf28 100644 --- a/clang/lib/Lex/HeaderSearch.cpp +++ b/clang/lib/Lex/HeaderSearch.cpp @@ -25,11 +25,11 @@ #include "clang/Lex/Preprocessor.h" #include "llvm/ADT/APInt.h" #include "llvm/ADT/Hashing.h" +#include "llvm/ADT/STLExtras.h" #include "llvm/ADT/SmallString.h" #include "llvm/ADT/SmallVector.h" #include "llvm/ADT/Statistic.h" #include "llvm/ADT/StringRef.h" -#include "llvm/ADT/STLExtras.h" #include "llvm/Support/Allocator.h" #include "llvm/Support/Capacity.h" #include "llvm/Support/Errc.h" @@ -37,6 +37,7 @@ #include "llvm/Support/FileSystem.h" #include "llvm/Support/Path.h" #include "llvm/Support/VirtualFileSystem.h" +#include "llvm/Support/xxhash.h" #include <algorithm> #include <cassert> #include <cstddef> @@ -282,10 +283,10 @@ std::string HeaderSearch::getCachedModuleFileNameImpl(StringRef ModuleName, if (getModuleMap().canonicalizeModuleMapPath(CanonicalPath)) return {}; - llvm::hash_code Hash = llvm::hash_combine(CanonicalPath.str().lower()); + auto Hash = llvm::xxh3_64bits(CanonicalPath.str().lower()); SmallString<128> HashStr; - llvm::APInt(64, size_t(Hash)).toStringUnsigned(HashStr, /*Radix*/36); + llvm::APInt(64, Hash).toStringUnsigned(HashStr, /*Radix*/36); llvm::sys::path::append(Result, ModuleName + "-" + HashStr + ".pcm"); } return Result.str().str(); _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
