When a thunk is generated with a call to the original adjusted function,
the thunk appears in the debugger call stack. We want the backend to perform
tail-call optimization on the call, to make it invisible to the debugger.
This fixes PR24235
Patch by: amjad.aboud@intel.com
Differential Revision: http://reviews.llvm.org/D11476
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@244207
91177308-0d34-0410-b5e6-
96231b3b80d8
// Consider return adjustment if we have ThunkInfo.
if (Thunk && !Thunk->Return.isEmpty())
RV = PerformReturnAdjustment(*this, ResultType, RV, *Thunk);
+ else if (llvm::CallInst* Call = dyn_cast<llvm::CallInst>(CallOrInvoke))
+ Call->setTailCallKind(llvm::CallInst::TCK_Tail);
// Emit return.
if (!ResultType->isVoidType() && Slot.isNull())
// Do an adjustment from B* to C*.
// DTORS2: getelementptr i8, i8* %{{.*}}, i32 -4
// DTORS2: bitcast i8* %{{.*}} to %"struct.dtor_in_second_nvbase::C"*
-// DTORS2: %[[CALL:.*]] = call x86_thiscallcc i8* @"\01??_GC@dtor_in_second_nvbase@@UAEPAXI@Z"
+// DTORS2: %[[CALL:.*]] = tail call x86_thiscallcc i8* @"\01??_GC@dtor_in_second_nvbase@@UAEPAXI@Z"
// DTORS2: ret i8* %[[CALL]]
}