diff options
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-11-13 22:42:13 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-11-13 22:42:13 +0000 |
| commit | 1f81e316b042c02c841801a71e7439e166ffa2a0 (patch) | |
| tree | e698a28b4eea5d8fd561f93f877188aea5242dc9 /lib/CodeGen/LiveIntervalAnalysis.cpp | |
| parent | f9fd29ea34d841df7d43807e386c48c08bf83f13 (diff) | |
Terminate all dead defs at the dead slot instead of the 'next' slot.
This makes no difference for normal defs, but early clobber dead defs
now look like:
[Slot_EarlyClobber; Slot_Dead)
instead of:
[Slot_EarlyClobber; Slot_Register).
Live ranges for normal dead defs look like:
[Slot_Register; Slot_Dead)
as before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144512 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index 1346487a66..7baa5fbdf5 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -686,7 +686,7 @@ bool LiveIntervals::shrinkToUses(LiveInterval *li, VNInfo *VNI = *I; if (VNI->isUnused()) continue; - NewLI.addRange(LiveRange(VNI->def, VNI->def.getNextSlot(), VNI)); + NewLI.addRange(LiveRange(VNI->def, VNI->def.getDeadSlot(), VNI)); // A use tied to an early-clobber def ends at the load slot and isn't caught // above. Catch it here instead. This probably only ever happens for inline @@ -751,7 +751,7 @@ bool LiveIntervals::shrinkToUses(LiveInterval *li, continue; LiveInterval::iterator LII = NewLI.FindLiveRangeContaining(VNI->def); assert(LII != NewLI.end() && "Missing live range for PHI"); - if (LII->end != VNI->def.getNextSlot()) + if (LII->end != VNI->def.getDeadSlot()) continue; if (VNI->isPHIDef()) { // This is a dead PHI. Remove it. |