2 files changed, 18 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index 17182b958ecb6..7258a5cc2d89e 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -1143,6 +1143,16 @@ public:
     return OptSize ? MaxStoresPerMemcpyOptSize : MaxStoresPerMemcpy;
   }
 
+  /// Get maximum # of load operations permitted for memcmp
+  ///
+  /// This function returns the maximum number of load operations permitted
+  /// to replace a call to memcmp. The value is set by the target at the
+  /// performance threshold for such a replacement. If OptSize is true,
+  /// return the limit for functions that have OptSize attribute.
+  unsigned getMaxExpandSizeMemcmp(bool OptSize) const {
+    return OptSize ? MaxLoadsPerMemcmpOptSize : MaxLoadsPerMemcmp;
+  }
+
   /// \brief Get maximum # of store operations permitted for llvm.memmove
   ///
   /// This function returns the maximum number of store operations permitted
@@ -2330,6 +2340,8 @@ protected:
   /// Maximum number of store operations that may be substituted for a call to
   /// memcpy, used for functions with OptSize attribute.
   unsigned MaxStoresPerMemcpyOptSize;
+  unsigned MaxLoadsPerMemcmp;
+  unsigned MaxLoadsPerMemcmpOptSize;
 
   /// \brief Specify maximum bytes of store instructions per memmove call.
   ///
diff --git a/include/llvm/Target/TargetMachine.h b/include/llvm/Target/TargetMachine.h
index 73ae2ad129881..ed390799cfc38 100644
--- a/include/llvm/Target/TargetMachine.h
+++ b/include/llvm/Target/TargetMachine.h
@@ -299,6 +299,12 @@ public:
   bool addPassesToEmitMC(PassManagerBase &PM, MCContext *&Ctx,
                          raw_pwrite_stream &OS,
                          bool DisableVerify = true) override;
+
+  /// Returns true if the target is expected to pass all machine verifier
+  /// checks. This is a stopgap measure to fix targets one by one. We will
+  /// remove this at some point and always enable the verifier when
+  /// EXPENSIVE_CHECKS is enabled.
+  virtual bool isMachineVerifierClean() const { return true; }
 };
 
 } // end namespace llvm