[OperandBundles] Fix a transform in simplifycfg

[reames]

LGTM

lib/Transforms/Utils/Local.cpp

while (BBI != BBE) {
     if (!BBI->use_empty())
       BBI->replaceAllUsesWith(UndefValue::get(BBI->getType()));
     BB->getInstList().erase(BBI++);
   }
 }
 
 /// changeToCall - Convert the specified invoke into a normal call.
 static void changeToCall(InvokeInst *II) {
-  SmallVector<Value*, 8> Args(II->op_begin(), II->op_end() - 3);
-  CallInst *NewCall = CallInst::Create(II->getCalledValue(), Args, "", II);
+  CallSite CS(II);
+  SmallVector<Value*, 8> Args(CS.arg_begin(), CS.arg_end());
+  SmallVector<OperandBundleDef, 1> OpBundles;
+  II->getOperandBundlesAsDefs(OpBundles);
+  CallInst *NewCall = CallInst::Create(II->getCalledValue(), Args, OpBundles,
+                                       "", II);
   NewCall->takeName(II);
   NewCall->setCallingConv(II->getCallingConv());
   NewCall->setAttributes(II->getAttributes());
   NewCall->setDebugLoc(II->getDebugLoc());
   II->replaceAllUsesWith(NewCall);
 
   // Follow the call by a branch to the normal destination.
   BranchInst::Create(II->getNormalDest(), II);

test/Transforms/SimplifyCFG/invoke_unwind.ll

; CHECK-NEXT: ret i32 0
                         to label %1 unwind label %Rethrow
         ret i32 0
 Rethrow:
         %exn = landingpad {i8*, i32}
                  catch i8* null
         resume { i8*, i32 } %exn
 }
 
+define i32 @test2() personality i32 (...)* @__gxx_personality_v0 {
+; CHECK-LABEL: @test2(
+; CHECK-NEXT: call void @bar() [ "foo"(i32 100) ]
+; CHECK-NEXT: ret i32 0
+        invoke void @bar( ) [ "foo"(i32 100) ]
+                        to label %1 unwind label %Rethrow
+        ret i32 0
+Rethrow:
+        %exn = landingpad {i8*, i32}
+                 catch i8* null
+        resume { i8*, i32 } %exn
+}
+
 declare i32 @__gxx_personality_v0(...)