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| author | Evan Cheng <evan.cheng@apple.com> | 2008-02-27 03:04:06 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-02-27 03:04:06 +0000 |
| commit | d36531249a9a9500e516148e7e72d4c0a7a4d0ee (patch) | |
| tree | 6989d7bcac7fd80359addc3fa13e899ff8961cfc /lib/CodeGen/LiveIntervalAnalysis.cpp | |
| parent | 1953ecb0a6fc8520b34b52fd04f7476a7eb4613f (diff) | |
Spiller now remove unused spill slots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47657 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index 716c370110..00ba2e770b 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -764,6 +764,9 @@ bool LiveIntervals::tryFoldMemoryOperand(MachineInstr* &MI, MachineInstr *fmi = isSS ? tii_->foldMemoryOperand(*mf_, MI, FoldOps, Slot) : tii_->foldMemoryOperand(*mf_, MI, FoldOps, DefMI); if (fmi) { + // Remember this instruction uses the spill slot. + if (isSS) vrm.addSpillSlotUse(Slot, fmi); + // Attempt to fold the memory reference into the instruction. If // we can do this, we don't need to insert spill code. if (lv_) |