diff options
Diffstat (limited to 'clang/lib/CodeGen/CodeGenPGO.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CodeGenPGO.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/clang/lib/CodeGen/CodeGenPGO.cpp b/clang/lib/CodeGen/CodeGenPGO.cpp index 8f09564..06d7380 100644 --- a/clang/lib/CodeGen/CodeGenPGO.cpp +++ b/clang/lib/CodeGen/CodeGenPGO.cpp @@ -58,9 +58,10 @@ enum PGOHashVersion : unsigned { PGO_HASH_V1, PGO_HASH_V2, PGO_HASH_V3, + PGO_HASH_V4, // Keep this set to the latest hash version. - PGO_HASH_LATEST = PGO_HASH_V3 + PGO_HASH_LATEST = PGO_HASH_V4 }; namespace { @@ -152,7 +153,9 @@ static PGOHashVersion getPGOHashVersion(llvm::IndexedInstrProfReader *PGOReader, return PGO_HASH_V1; if (PGOReader->getVersion() <= 5) return PGO_HASH_V2; - return PGO_HASH_V3; + if (PGOReader->getVersion() <= 12) + return PGO_HASH_V3; + return PGO_HASH_V4; } /// A RecursiveASTVisitor that fills a map of statements to PGO counters. @@ -1099,6 +1102,8 @@ void CodeGenPGO::mapRegionCounters(const Decl *D) { assert(Walker.NextCounter > 0 && "no entry counter mapped for decl"); NumRegionCounters = Walker.NextCounter; FunctionHash = Walker.Hash.finalize(); + if (HashVersion >= PGO_HASH_V4) + FunctionHash &= llvm::NamedInstrProfRecord::FUNC_HASH_MASK; } bool CodeGenPGO::skipRegionMappingForDecl(const Decl *D) { |