LiveRegUnits: Rename accumulateBackward()->accumulate()

Contrary to the stepForward()/stepBackward() method accumulate() doesn't
have a direction as defs, uses and clobbers all have the same effect.

Also improve the documentation comment.

llvm-svn: 307351

3 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/LiveRegUnits.cpp b/llvm/lib/CodeGen/LiveRegUnits.cpp
index 3746b74e052..f9ba4ffa652 100644
--- a/llvm/lib/CodeGen/LiveRegUnits.cpp
+++ b/llvm/lib/CodeGen/LiveRegUnits.cpp
@@ -67,7 +67,7 @@ void LiveRegUnits::stepBackward(const MachineInstr &MI) {
   }
 }
 
-void LiveRegUnits::accumulateBackward(const MachineInstr &MI) {
+void LiveRegUnits::accumulate(const MachineInstr &MI) {
   // Add defs, uses and regmask clobbers to the set.
   for (ConstMIBundleOperands O(MI); O.isValid(); ++O) {
     if (O->isReg()) {
diff --git a/llvm/lib/CodeGen/RegisterScavenging.cpp b/llvm/lib/CodeGen/RegisterScavenging.cpp
index 83d65a56fec..7856eaa0a36 100644
--- a/llvm/lib/CodeGen/RegisterScavenging.cpp
+++ b/llvm/lib/CodeGen/RegisterScavenging.cpp
@@ -388,7 +388,7 @@ findSurvivorBackwards(const MachineRegisterInfo &MRI,
   for (MachineBasicBlock::iterator I = From;; --I) {
     const MachineInstr &MI = *I;
 
-    Used.accumulateBackward(MI);
+    Used.accumulate(MI);
 
     if (I == To) {
       // See if one of the registers in RC wasn't used so far.
diff --git a/llvm/lib/Target/AArch64/AArch64A57FPLoadBalancing.cpp b/llvm/lib/Target/AArch64/AArch64A57FPLoadBalancing.cpp
index 4a7e0b2b803..db1fbe069f4 100644
--- a/llvm/lib/Target/AArch64/AArch64A57FPLoadBalancing.cpp
+++ b/llvm/lib/Target/AArch64/AArch64A57FPLoadBalancing.cpp
@@ -509,7 +509,7 @@ int AArch64A57FPLoadBalancing::scavengeRegister(Chain *G, Color C,
   assert(ChainBegin != ChainEnd && "Chain should contain instructions");
   do {
     --I;
-    Units.accumulateBackward(*I);
+    Units.accumulate(*I);
   } while (I != ChainBegin);
 
   // Make sure we allocate in-order, to get the cheapest registers first.