Revert 101465, it broke internal OpenGL testing.

Probably the best way to know that all getOperand() calls have been handled
is to replace that API instead of updating.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101579 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 2693f9b..00cc083 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -9959,7 +9959,7 @@
 
   // Verify this is a simple bswap.
   if (CI->getNumOperands() != 2 ||
-      CI->getType() != CI->getOperand(0)->getType() ||
+      CI->getType() != CI->getOperand(1)->getType() ||
       !CI->getType()->isIntegerTy())
     return false;
 
@@ -9972,7 +9972,7 @@
   Module *M = CI->getParent()->getParent()->getParent();
   Constant *Int = Intrinsic::getDeclaration(M, Intrinsic::bswap, Tys, 1);
 
-  Value *Op = CI->getOperand(0);
+  Value *Op = CI->getOperand(1);
   Op = CallInst::Create(Int, Op, CI->getName(), CI);
 
   CI->replaceAllUsesWith(Op);