diff options
author | Lang Hames <lhames@gmail.com> | 2009-11-19 04:15:33 +0000 |
---|---|---|
committer | Lang Hames <lhames@gmail.com> | 2009-11-19 04:15:33 +0000 |
commit | 835ca07991c1b8ec47240b15417e1b2732480094 (patch) | |
tree | 798d9727b01e463498f682b5987b1aee13f3fea9 /lib/CodeGen/RegAllocLinearScan.cpp | |
parent | 2b5e6b1c9c9c3c3f0d07098020f9eb4527515374 (diff) | |
download | external_llvm-835ca07991c1b8ec47240b15417e1b2732480094.zip external_llvm-835ca07991c1b8ec47240b15417e1b2732480094.tar.gz external_llvm-835ca07991c1b8ec47240b15417e1b2732480094.tar.bz2 |
Added a new Spiller implementation which wraps LiveIntervals::addIntervalsForSpills.
All spiller calls in RegAllocLinearScan now go through the new Spiller interface.
The "-new-spill-framework" command line option has been removed. To use the trivial in-place spiller you should now pass "-spiller=trivial -rewriter=trivial".
(Note the trivial spiller/rewriter are only meant to serve as examples of the new in-place modification work. Enabling them will yield terrible, though hopefully functional, code).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89311 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocLinearScan.cpp')
-rw-r--r-- | lib/CodeGen/RegAllocLinearScan.cpp | 21 |
1 files changed, 3 insertions, 18 deletions
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp index 6930abf..fff50da 100644 --- a/lib/CodeGen/RegAllocLinearScan.cpp +++ b/lib/CodeGen/RegAllocLinearScan.cpp @@ -59,11 +59,6 @@ PreSplitIntervals("pre-alloc-split", cl::desc("Pre-register allocation live interval splitting"), cl::init(false), cl::Hidden); -static cl::opt<bool> -NewSpillFramework("new-spill-framework", - cl::desc("New spilling framework"), - cl::init(false), cl::Hidden); - static RegisterRegAlloc linearscanRegAlloc("linearscan", "linear scan register allocator", createLinearScanRegisterAllocator); @@ -441,9 +436,7 @@ bool RALinScan::runOnMachineFunction(MachineFunction &fn) { vrm_ = &getAnalysis<VirtRegMap>(); if (!rewriter_.get()) rewriter_.reset(createVirtRegRewriter()); - if (NewSpillFramework) { - spiller_.reset(createSpiller(mf_, li_, ls_, vrm_)); - } + spiller_.reset(createSpiller(mf_, li_, ls_, loopInfo, vrm_)); initIntervalSets(); @@ -1157,11 +1150,7 @@ void RALinScan::assignRegOrStackSlotAtInterval(LiveInterval* cur) { SmallVector<LiveInterval*, 8> spillIs; std::vector<LiveInterval*> added; - if (!NewSpillFramework) { - added = li_->addIntervalsForSpills(*cur, spillIs, loopInfo, *vrm_); - } else { - added = spiller_->spill(cur); - } + added = spiller_->spill(cur, spillIs); std::sort(added.begin(), added.end(), LISorter()); addStackInterval(cur, ls_, li_, mri_, *vrm_); @@ -1241,11 +1230,7 @@ void RALinScan::assignRegOrStackSlotAtInterval(LiveInterval* cur) { earliestStartInterval : sli; std::vector<LiveInterval*> newIs; - if (!NewSpillFramework) { - newIs = li_->addIntervalsForSpills(*sli, spillIs, loopInfo, *vrm_); - } else { - newIs = spiller_->spill(sli); - } + newIs = spiller_->spill(sli, spillIs); addStackInterval(sli, ls_, li_, mri_, *vrm_); std::copy(newIs.begin(), newIs.end(), std::back_inserter(added)); spilled.insert(sli->reg); |