diff options
Diffstat (limited to 'include/llvm/Target/TargetLowering.h')
-rw-r--r-- | include/llvm/Target/TargetLowering.h | 12 |
1 files changed, 12 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. /// |