[llvm] r296675 - LIU::Query: Remove always false member+getter; NFC

[Matthias Braun via llvm-commits]

Author: matze
Date: Wed Mar  1 15:02:52 2017
New Revision: 296675

URL: http://llvm.org/viewvc/llvm-project?rev=296675&view=rev
Log:
LIU::Query: Remove always false member+getter; NFC

Modified:
    llvm/trunk/include/llvm/CodeGen/LiveIntervalUnion.h
    llvm/trunk/lib/CodeGen/RegAllocBasic.cpp

Modified: llvm/trunk/include/llvm/CodeGen/LiveIntervalUnion.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/LiveIntervalUnion.h?rev=296675&r1=296674&r2=296675&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/LiveIntervalUnion.h (original)
+++ llvm/trunk/include/llvm/CodeGen/LiveIntervalUnion.h Wed Mar  1 15:02:52 2017
@@ -112,7 +112,6 @@ public:
     SmallVector<LiveInterval*,4> InterferingVRegs;
     bool CheckedFirstInterference = false;
     bool SeenAllInterferences = false;
-    bool SeenUnspillableVReg = false;
     unsigned Tag = 0;
     unsigned UserTag = 0;
 
@@ -129,7 +128,6 @@ public:
       InterferingVRegs.clear();
       CheckedFirstInterference = false;
       SeenAllInterferences = false;
-      SeenUnspillableVReg = false;
       Tag = 0;
       UserTag = 0;
     }
@@ -167,9 +165,6 @@ public:
     // Did collectInterferingVRegs collect all interferences?
     bool seenAllInterferences() const { return SeenAllInterferences; }
 
-    // Did collectInterferingVRegs encounter an unspillable vreg?
-    bool seenUnspillableVReg() const { return SeenUnspillableVReg; }
-
     // Vector generated by collectInterferingVRegs.
     const SmallVectorImpl<LiveInterval*> &interferingVRegs() const {
       return InterferingVRegs;

Modified: llvm/trunk/lib/CodeGen/RegAllocBasic.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/RegAllocBasic.cpp?rev=296675&r1=296674&r2=296675&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/RegAllocBasic.cpp (original)
+++ llvm/trunk/lib/CodeGen/RegAllocBasic.cpp Wed Mar  1 15:02:52 2017
@@ -176,8 +176,6 @@ bool RABasic::spillInterferences(LiveInt
   for (MCRegUnitIterator Units(PhysReg, TRI); Units.isValid(); ++Units) {
     LiveIntervalUnion::Query &Q = Matrix->query(VirtReg, *Units);
     Q.collectInterferingVRegs();
-    if (Q.seenUnspillableVReg())
-      return false;
     for (unsigned i = Q.interferingVRegs().size(); i; --i) {
       LiveInterval *Intf = Q.interferingVRegs()[i - 1];
       if (!Intf->isSpillable() || Intf->weight > VirtReg.weight)