Undo spill weight tweak. Need to investigate the performance regressions.

[oota-llvm.git] / lib / CodeGen / LiveIntervalAnalysis.cpp

diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 5bb3cfa4596fbaa61c280949553418f7dee8dc3e..83df4d174a4cb0b0b5129fd8fa0dac2c1085a577 100644 (file)
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -365,14 +365,11 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock *mbb,
     // live interval.
     for (unsigned i = 0, e = vi.AliveBlocks.size(); i != e; ++i) {
       if (vi.AliveBlocks[i]) {
-        MachineBasicBlock *MBB = mf_->getBlockNumbered(i);
-        if (!MBB->empty()) {
-          LiveRange LR(getMBBStartIdx(i),
-                       getInstructionIndex(&MBB->back()) + InstrSlots::NUM,
-                       ValNo);
-          interval.addRange(LR);
-          DOUT << " +" << LR;
-        }
+        LiveRange LR(getMBBStartIdx(i),
+                     getMBBEndIdx(i)+1,  // MBB ends at -1.
+                     ValNo);
+        interval.addRange(LR);
+        DOUT << " +" << LR;
       }
     }