Track new virtual registers by register number.
Track new virtual registers by register number, rather than by the live
interval created for them. This is the first step in separating the
creation of new virtual registers and new live intervals. Eventually
live intervals will be created and populated on demand after the virtual
registers have been created and used in instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188434 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocBasic.cpp b/lib/CodeGen/RegAllocBasic.cpp
index d6a7d6f..0c958df 100644
--- a/lib/CodeGen/RegAllocBasic.cpp
+++ b/lib/CodeGen/RegAllocBasic.cpp
@@ -102,7 +102,7 @@
}
virtual unsigned selectOrSplit(LiveInterval &VirtReg,
- SmallVectorImpl<LiveInterval*> &SplitVRegs);
+ SmallVectorImpl<unsigned> &SplitVRegs);
/// Perform register allocation.
virtual bool runOnMachineFunction(MachineFunction &mf);
@@ -111,7 +111,7 @@
// that interfere with the most recently queried lvr. Return true if spilling
// was successful, and append any new spilled/split intervals to splitLVRs.
bool spillInterferences(LiveInterval &VirtReg, unsigned PhysReg,
- SmallVectorImpl<LiveInterval*> &SplitVRegs);
+ SmallVectorImpl<unsigned> &SplitVRegs);
static char ID;
};
@@ -168,7 +168,7 @@
// that interfere with VirtReg. The newly spilled or split live intervals are
// returned by appending them to SplitVRegs.
bool RABasic::spillInterferences(LiveInterval &VirtReg, unsigned PhysReg,
- SmallVectorImpl<LiveInterval*> &SplitVRegs) {
+ SmallVectorImpl<unsigned> &SplitVRegs) {
// Record each interference and determine if all are spillable before mutating
// either the union or live intervals.
SmallVector<LiveInterval*, 8> Intfs;
@@ -222,7 +222,7 @@
// minimal, there is no value in caching them outside the scope of
// selectOrSplit().
unsigned RABasic::selectOrSplit(LiveInterval &VirtReg,
- SmallVectorImpl<LiveInterval*> &SplitVRegs) {
+ SmallVectorImpl<unsigned> &SplitVRegs) {
// Populate a list of physical register spill candidates.
SmallVector<unsigned, 8> PhysRegSpillCands;