Index: llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
===================================================================
--- llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
+++ llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
@@ -198,6 +198,11 @@
     cl::desc("Enable workarounds for the StructurizeCFG pass"), cl::init(true),
     cl::Hidden);
 
+static cl::opt<bool> EnableInstructionSink(
+    "amdgpu-enable-instruction-sink",
+    cl::desc("Enable instruction sink pass"), cl::init(true),
+    cl::Hidden);
+
 extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeAMDGPUTarget() {
   // Register the target
   RegisterTargetMachine<R600TargetMachine> X(getTheAMDGPUTarget());
@@ -889,7 +894,8 @@
     }
     addPass(createStructurizeCFGPass(false)); // true -> SkipUniformRegions
   }
-  addPass(createSinkingPass());
+  if (EnableInstructionSink)
+    addPass(createSinkingPass());
   addPass(createAMDGPUAnnotateUniformValues());
   if (!LateCFGStructurize) {
     addPass(createSIAnnotateControlFlowPass());