Fix a pasto.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58102 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/PreAllocSplitting.cpp b/lib/CodeGen/PreAllocSplitting.cpp
index 37d0df1..18cac07 100644
--- a/lib/CodeGen/PreAllocSplitting.cpp
+++ b/lib/CodeGen/PreAllocSplitting.cpp
@@ -214,7 +214,7 @@
     do {
       --MII;
       unsigned Index = LIs->getInstructionIndex(MII);
-      unsigned Gap = LIs->hasGapBeforeInstr(Index);
+      unsigned Gap = LIs->findGapBeforeInstr(Index);
       if (Gap) {
         Pt = MII;
         RestoreIndex = Gap;