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3 Commits

Author SHA1 Message Date
Peter Collingbourne a705e0edef IR: Move NumElements field from {Array,Vector}Type to SequentialType. 
Now that PointerType is no longer a SequentialType, all SequentialTypes
have an associated number of elements, so we can move that information to
the base class, allowing for a number of simplifications.

Differential Revision: https://reviews.llvm.org/D27122

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288464 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-12-02 03:20:58 +00:00
Erik Eckstein eec5bf79c3 FunctionComparator: don't rely on argument evaluation order. 
This is a follow-up on the recent refactoring of the FunctionMerge pass.
It should fix a fail of the new FunctionComparator unittest whe compiling with MSVC.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286648 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-11-11 22:21:39 +00:00
Erik Eckstein 345d21cba1 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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286632 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-11-11 21:15:13 +00:00