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Remove the experimental (and unused) pre-ra splitting pass. Greedy regalloc can split live ranges.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133962 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2011-06-27 23:40:45 +00:00
parent 156d460c75
commit f10711fb8c
14 changed files with 0 additions and 1777 deletions
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9
lib/CodeGen/RegAllocLinearScan.cpp
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@ -57,11 +57,6 @@ NewHeuristic("new-spilling-heuristic",
cl::desc("Use new spilling heuristic"),
cl::init(false), cl::Hidden);
static cl::opt<bool>
PreSplitIntervals("pre-alloc-split",
cl::desc("Pre-register allocation live interval splitting"),
cl::init(false), cl::Hidden);
static cl::opt<bool>
TrivCoalesceEnds("trivial-coalesce-ends",
cl::desc("Attempt trivial coalescing of interval ends"),
@ -104,7 +99,6 @@ namespace {
initializeRegisterCoalescerPass(
*PassRegistry::getPassRegistry());
initializeCalculateSpillWeightsPass(*PassRegistry::getPassRegistry());
initializePreAllocSplittingPass(*PassRegistry::getPassRegistry());
initializeLiveStacksPass(*PassRegistry::getPassRegistry());
initializeMachineDominatorTreePass(*PassRegistry::getPassRegistry());
initializeMachineLoopInfoPass(*PassRegistry::getPassRegistry());
@ -217,8 +211,6 @@ namespace {
// to coalescing and which analyses coalescing invalidates.
AU.addRequiredTransitive<RegisterCoalescer>();
AU.addRequired<CalculateSpillWeights>();
if (PreSplitIntervals)
AU.addRequiredID(PreAllocSplittingID);
AU.addRequiredID(LiveStacksID);
AU.addPreservedID(LiveStacksID);
AU.addRequired<MachineLoopInfo>();
@ -401,7 +393,6 @@ INITIALIZE_PASS_BEGIN(RALinScan, "linearscan-regalloc",
INITIALIZE_PASS_DEPENDENCY(LiveIntervals)
INITIALIZE_PASS_DEPENDENCY(StrongPHIElimination)
INITIALIZE_PASS_DEPENDENCY(CalculateSpillWeights)
INITIALIZE_PASS_DEPENDENCY(PreAllocSplitting)
INITIALIZE_PASS_DEPENDENCY(LiveStacks)
INITIALIZE_PASS_DEPENDENCY(MachineLoopInfo)
INITIALIZE_PASS_DEPENDENCY(VirtRegMap)