diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86InsertPrefetch.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86InsertPrefetch.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86InsertPrefetch.cpp b/llvm/lib/Target/X86/X86InsertPrefetch.cpp index 29ae05bf0c94..3c9738be547f 100644 --- a/llvm/lib/Target/X86/X86InsertPrefetch.cpp +++ b/llvm/lib/Target/X86/X86InsertPrefetch.cpp @@ -110,6 +110,11 @@ bool X86InsertPrefetch::findPrefetchInfo(const FunctionSamples *TopSamples, Prefetches &Prefetches) const { assert(Prefetches.empty() && "Expected caller passed empty PrefetchInfo vector."); + + // There is no point to match prefetch hints if the profile is using MD5. + if (FunctionSamples::UseMD5) + return false; + static constexpr std::pair<StringLiteral, unsigned> HintTypes[] = { {"_nta_", X86::PREFETCHNTA}, {"_t0_", X86::PREFETCHT0}, @@ -125,7 +130,7 @@ bool X86InsertPrefetch::findPrefetchInfo(const FunctionSamples *TopSamples, // Convert serialized prefetch hints into PrefetchInfo objects, and populate // the Prefetches vector. for (const auto &S_V : *T) { - StringRef Name = S_V.getKey(); + StringRef Name = S_V.first.stringRef(); if (Name.consume_front(SerializedPrefetchPrefix)) { int64_t D = static_cast<int64_t>(S_V.second); unsigned IID = 0; |