Changed option name from inline-threshold to basic-inline-threshold because

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

diff --git a/lib/CodeGen/LiveInterval.cpp b/lib/CodeGen/LiveInterval.cpp
index 4392652438ce33c03fd7e98b17e1529f6b9f42fb..40f8cd4388d89bc65bc89358e06d8d74e4b481e0 100644 (file)
--- a/lib/CodeGen/LiveInterval.cpp
+++ b/lib/CodeGen/LiveInterval.cpp
@@ -244,6 +244,16 @@ LiveInterval::addRangeFrom(LiveRange LR, iterator From) {
   return ranges.insert(it, LR);
 }
 
+/// isInOneLiveRange - Return true if the range specified is entirely in the
+/// a single LiveRange of the live interval.
+bool LiveInterval::isInOneLiveRange(unsigned Start, unsigned End) {
+  Ranges::iterator I = std::upper_bound(ranges.begin(), ranges.end(), Start);
+  if (I == ranges.begin())
+    return false;
+  --I;
+  return I->contains(Start) && I->contains(End-1);
+}
+
 
 /// removeRange - Remove the specified range from this interval.  Note that
 /// the range must be in a single LiveRange in its entirety.
@@ -581,7 +591,7 @@ void LiveInterval::MergeInClobberRanges(const LiveInterval &Clobbers,
 /// are found to be equivalent.  This eliminates V1, replacing all
 /// LiveRanges with the V1 value number with the V2 value number.  This can
 /// cause merging of V1/V2 values numbers and compaction of the value space.
-void LiveInterval::MergeValueNumberInto(VNInfo *V1, VNInfo *V2) {
+VNInfo* LiveInterval::MergeValueNumberInto(VNInfo *V1, VNInfo *V2) {
   assert(V1 != V2 && "Identical value#'s are always equivalent!");
 
   // This code actually merges the (numerically) larger value number into the
@@ -642,6 +652,8 @@ void LiveInterval::MergeValueNumberInto(VNInfo *V1, VNInfo *V2) {
   } else {
     V1->def = ~1U;
   }
+  
+  return V2;
 }
 
 void LiveInterval::Copy(const LiveInterval &RHS,