Revert "Have InstCombine call SipmlifyCall when handling calls. Test case included."

This reverts commit 3854a5d90fee52af1065edbed34521fff6cdc18d.

This causes a clang unit test to hang: vtable-available-externally.cpp.

llvm-svn: 174692

1 files changed, 0 insertions, 6 deletions

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
index cb9ba44600a..64cd1bd2789 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
@@ -13,7 +13,6 @@
 
 #include "InstCombine.h"
 #include "llvm/ADT/Statistic.h"
-#include "llvm/Analysis/InstructionSimplify.h"
 #include "llvm/Analysis/MemoryBuiltins.h"
 #include "llvm/IR/DataLayout.h"
 #include "llvm/Support/CallSite.h"
@@ -211,11 +210,6 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) {
     return &CI;
   }
 
-  CallSite CS(&CI);
-  if (Value *V = SimplifyCall(CS.getCalledValue(), CS.arg_begin(), CS.arg_end(),
-                              TD))
-    return ReplaceInstUsesWith(CI, V);
-
   IntrinsicInst *II = dyn_cast<IntrinsicInst>(&CI);
   if (!II) return visitCallSite(&CI);