Erik Eckstein 8bab9d126f Make the FunctionComparator of the MergeFunctions pass a stand-alone utility. ...

This is pure refactoring. NFC.

This change moves the FunctionComparator (together with the GlobalNumberState
utility) in to a separate file so that it can be used by other passes.
For example, the SwiftMergeFunctions pass in the Swift compiler:
https://github.com/apple/swift/blob/master/lib/LLVMPasses/LLVMMergeFunctions.cpp

Details of the change:

*) The big part is just moving code out of MergeFunctions.cpp into FunctionComparator.h/cpp
*) Make FunctionComparator member functions protected (instead of private)
   so that a derived comparator class can use them.

Following refactoring helps to share code between the base FunctionComparator
class and a derived class:

*) Add a beginCompare() function
*) Move some basic function property comparisons into a separate function compareSignature()
*) Do the GEP comparison inside cmpOperations() which now has a new
   needToCmpOperands reference parameter

https://reviews.llvm.org/D25385

llvm-svn: 286632

2016-11-11 21:15:13 +00:00

..

IPO

IR: New representation for CFI and virtual call optimization pass metadata.

2016-06-24 21:21:32 +00:00

Utils

Make the FunctionComparator of the MergeFunctions pass a stand-alone utility.

2016-11-11 21:15:13 +00:00

CMakeLists.txt

Introduce bitset metadata format and bitset lowering pass.

2015-02-20 20:30:47 +00:00