Fix PR1800 by correcting mistaken logic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44188 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index efcd8e3..e8cd867 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -3577,8 +3577,7 @@
           case ICmpInst::ICMP_SGT:
             switch (RHSCC) {
             default: assert(0 && "Unknown integer condition code!");
-            case ICmpInst::ICMP_EQ:         // (X s> 13 & X == 15) -> X s> 13
-              return ReplaceInstUsesWith(I, LHS);
+            case ICmpInst::ICMP_EQ:         // (X s> 13 & X == 15) -> X == 15
             case ICmpInst::ICMP_SGT:        // (X s> 13 & X s> 15) -> X s> 15
               return ReplaceInstUsesWith(I, RHS);
             case ICmpInst::ICMP_UGT:        // (X s> 13 & X u> 15) -> no change