Change weight into a float so that we can take into account the

nesting level when computing it. Right now the allocator uses:

    w = sum_over_defs_uses( 10 ^ nesting level );


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10569 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 2 deletions

diff --git a/lib/CodeGen/LiveIntervalAnalysis.h b/lib/CodeGen/LiveIntervalAnalysis.h
index 7ef2e78ea6..cecfbbadbd 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.h
+++ b/lib/CodeGen/LiveIntervalAnalysis.h
@@ -38,8 +38,9 @@ namespace llvm {
             typedef std::pair<unsigned, unsigned> Range;
             typedef std::vector<Range> Ranges;
             unsigned reg;   // the register of this interval
-            unsigned weight; // weight of this interval (number of uses)
-            Ranges ranges; // the ranges this register is valid
+            float weight;   // weight of this interval (number of uses
+                            // * 10^loopDepth)
+            Ranges ranges;  // the ranges this register is valid
 
             Interval(unsigned r);