llvm/include/llvm/IR/ModuleSummaryIndex.h: 3 * Function parameter 'Flags' should be passed by const reference

[dcb314]

Static analyser cppcheck says:

trunk/llvm/include/llvm/IR/ModuleSummaryIndex.h:1153:28: performance: Function parameter 'Flags' should be passed by const reference. [passedByValue]
trunk/llvm/include/llvm/IR/ModuleSummaryIndex.h:628:24: performance: Function parameter 'Flags' should be passed by const reference. [passedByValue]
trunk/llvm/include/llvm/IR/ModuleSummaryIndex.h:900:27: performance: Function parameter 'Flags' should be passed by const reference. [passedByValue]

[dcb314]

More performance problems in the same file:

trunk/llvm/include/llvm/IR/ModuleSummaryIndex.h:595:11: performance: Function 'flags()' should return member 'Flags' by const reference. [returnByReference]
trunk/llvm/include/llvm/IR/ModuleSummaryIndex.h:971:10: performance: Function 'fflags()' should return member 'FunFlags' by const reference. [returnByReference]
trunk/llvm/include/llvm/IR/ModuleSummaryIndex.h:449:15: performance: Range variable 'Infos' should be declared as const reference. [iterateByValue]