Reapply "[AMDGPU] Modify adjustInliningThreshold to also consider the cost of passing function arguments through the stack"

[JanekvO]

Summary

Reapplies 142c28ffa1323e9a8d53200a22c80d5d778e0d0f as part of D140242 which got reverted due to amdgpu openmp test failures.

This diff fixes said failures by eliding most of adjustInliningThresholdUsingCallee for indirect calls as the callee function is unavailable for indirect calls.

[arsenm]

llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp

1172

This also will fail for constexpr casts and aliases. You don’t need to give up on these cases. You should be going off the callee type you can get from the CallBase

[JanekvO]

llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp

1172

I couldn't get isArgPassedInSGPR working with only the CallBase. Do indirect calls always pass args through VGPR?

[arsenm]

llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp

1172

The calling convention is always the same and can’t be different for direct or indirect calls. The ABI is fully determined by the call type, the calling convention and the attribute set. Is there just a missing attribute wrapper for inreg that checks callee and callsite attributes?

[JanekvO]

llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp

1172

Ah, I thought isArgPassedInSGPR depended more on information on the Argument and its associated called Function. Seem it only really needs the inreg/byval attribute info of the arguments.

[scchan]

llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp

1172

If it's an indirect call, where's no inlining opportunity or am I missing something?

[JanekvO]

• Stop bailing out for unknown callees and consider args of indirect calls

[JanekvO]

llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp

1172

It can possibly still inline in specific cases (such as the one in the provided test). Moreover, the llvm::getInlineCost (CallBase &Call, Function *Callee, ... API that eventually calls this TTI hook may have calls (e.g., from LTO) where the CallBase &Call is for an indirect call without a known Called function but the user of the API provides a known Function *Callee (i.e., Call.getCalledFunction() != Callee).

[arsenm]

llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp

2484–2513

You should go through CallBase::paramHasAttr rather than directly inspecting the AttributeList

[JanekvO]

llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp

2484–2513

I tried to retain existing API for isArgPassedInSGPR(const Argument *A) which doesn't have access to any CallBase. I think I could force something with function_ref but not sure if that's the way to go.

[arsenm]

llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp

2484–2513

Do we really need to retain the Argument version?

[JanekvO]

llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp

2484–2513

Looking into it, there seems to be a only 2 uses of isArgPassedInSGPR(const Argument *A), however, I couldn't find a way to rewrite them to use a more CallBase friendly API.

[arsenm]

llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp

2484–2513

I'm not really sure what the policy is for mismatched call site and declaration ABI attributes policy is supposed to be. We don't have a verifier check for it. My current assumption is for inreg, it would be present on the declaration and never in the call site attributes which won't work here. If you were to only pick one, you would be better off going off the callee's attribute set.

The Argument and call case are also different. The Argument version is for incoming and CallBase for outgoing. You might just need to split the two

[JanekvO]

llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp

2484–2513

My current assumption is for inreg, it would be present on the declaration and never in the call site attributes which won't work here. If you were to only pick one, you would be better off going off the callee's attribute set.

This might be tough in the case of indirect calls since the CallBase is all that's provided to the TTI hook and CallBase::getCalledfunction will return nullptr. Perhaps adding the Callee function to the existing TTI or a new TTI hook to adjust cost/threshold where the Callee function can be accessed might be more appropriate?

[arsenm]

llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp

2484–2513

I think just two duplicate functions for the incoming and outgoing case is fine. One will use Argument and the other CallBase and parameter index

[JanekvO]

• Duplicate isArgPassedInSGPR

[arsenm]

llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp

2500

This is kind of meaningless but not really wrong for entry points

llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp

 // more precise answers to certain TTI queries, while letting the target
 // independent and default TTI implementations handle the rest.
 //
 //===----------------------------------------------------------------------===//
 
 #include "AMDGPUTargetTransformInfo.h"
 #include "AMDGPUTargetMachine.h"
 #include "MCTargetDesc/AMDGPUMCTargetDesc.h"
+#include "llvm/Analysis/InlineCost.h"
 #include "llvm/Analysis/LoopInfo.h"
 #include "llvm/Analysis/ValueTracking.h"
+#include "llvm/CodeGen/Analysis.h"
 #include "llvm/IR/IRBuilder.h"
 #include "llvm/IR/IntrinsicsAMDGPU.h"
 #include "llvm/IR/PatternMatch.h"
 #include "llvm/Support/KnownBits.h"
 #include <optional>
 
 using namespace llvm;
 
if (Callee->size() == 1)
       return true;
     size_t BBSize = Caller->size() + Callee->size() - 1;
     return BBSize <= InlineMaxBB;
   }
 
   return true;
 }
 
+static unsigned adjustInliningThresholdUsingCallee(const CallBase *CB,
+                                                   const SITargetLowering *TLI,
+                                                   const GCNTTIImpl *TTIImpl) {
+  const int NrOfSGPRUntilSpill = 26;
+  const int NrOfVGPRUntilSpill = 32;
+
+  const DataLayout &DL = TTIImpl->getDataLayout();
+
+  unsigned adjustThreshold = 0;
+  int SGPRsInUse = 0;
+  int VGPRsInUse = 0;
+  for (const Use &A : CB->args()) {
+    SmallVector<EVT, 4> ValueVTs;
+    ComputeValueVTs(*TLI, DL, A.get()->getType(), ValueVTs);
+    for (auto ArgVT : ValueVTs) {
+      unsigned CCRegNum = TLI->getNumRegistersForCallingConv(
+          CB->getContext(), CB->getCallingConv(), ArgVT);
+      if (AMDGPU::isArgPassedInSGPR(CB, CB->getArgOperandNo(&A)))
+        SGPRsInUse += CCRegNum;
+      else
+        VGPRsInUse += CCRegNum;
+    }
+  }
+
+  // The cost of passing function arguments through the stack:
+  //  1 instruction to put a function argument on the stack in the caller.
+  //  1 instruction to take a function argument from the stack in callee.
+  //  1 instruction is explicitly take care of data dependencies in callee
+  //  function.
+  InstructionCost ArgStackCost(1);
+  ArgStackCost += const_cast<GCNTTIImpl *>(TTIImpl)->getMemoryOpCost(
+      Instruction::Store, Type::getInt32Ty(CB->getContext()), Align(4),
+      AMDGPUAS::PRIVATE_ADDRESS, TTI::TCK_SizeAndLatency);
+  ArgStackCost += const_cast<GCNTTIImpl *>(TTIImpl)->getMemoryOpCost(
+      Instruction::Load, Type::getInt32Ty(CB->getContext()), Align(4),
+      AMDGPUAS::PRIVATE_ADDRESS, TTI::TCK_SizeAndLatency);
+
+  // The penalty cost is computed relative to the cost of instructions and does
+  // not model any storage costs.
+  adjustThreshold += std::max(0, SGPRsInUse - NrOfSGPRUntilSpill) *
+                     *ArgStackCost.getValue() * InlineConstants::getInstrCost();
+  adjustThreshold += std::max(0, VGPRsInUse - NrOfVGPRUntilSpill) *
+                     *ArgStackCost.getValue() * InlineConstants::getInstrCost();
+  return adjustThreshold;
+}
+
 unsigned GCNTTIImpl::adjustInliningThreshold(const CallBase *CB) const {
   // If we have a pointer to private array passed into a function
   // it will not be optimized out, leaving scratch usage.
   // Increase the inline threshold to allow inlining in this case.
+  unsigned adjustThreshold = 0;
   uint64_t AllocaSize = 0;
   SmallPtrSet<const AllocaInst *, 8> AIVisited;
   for (Value *PtrArg : CB->args()) {
     PointerType *Ty = dyn_cast<PointerType>(PtrArg->getType());
     if (!Ty || (Ty->getAddressSpace() != AMDGPUAS::PRIVATE_ADDRESS &&
                 Ty->getAddressSpace() != AMDGPUAS::FLAT_ADDRESS))
       continue;
 
     PtrArg = getUnderlyingObject(PtrArg);
     if (const AllocaInst *AI = dyn_cast<AllocaInst>(PtrArg)) {
       if (!AI->isStaticAlloca() || !AIVisited.insert(AI).second)
         continue;
       AllocaSize += DL.getTypeAllocSize(AI->getAllocatedType());
       // If the amount of stack memory is excessive we will not be able
       // to get rid of the scratch anyway, bail out.
       if (AllocaSize > ArgAllocaCutoff) {
         AllocaSize = 0;
         break;
       }
     }
   }
-  if (AllocaSize)
-    return ArgAllocaCost;
-  return 0;
+  adjustThreshold +=
+      adjustInliningThresholdUsingCallee(CB, TLI, this);
+  adjustThreshold += AllocaSize ? ArgAllocaCost : AllocaSize;
+  return adjustThreshold;
 }
 
 void GCNTTIImpl::getUnrollingPreferences(Loop *L, ScalarEvolution &SE,
                                          TTI::UnrollingPreferences &UP,
                                          OptimizationRemarkEmitter *ORE) {
   CommonTTI.getUnrollingPreferences(L, SE, UP, ORE);
 }
 

llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h

 //===- AMDGPUBaseInfo.h - Top level definitions for AMDGPU ------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_LIB_TARGET_AMDGPU_UTILS_AMDGPUBASEINFO_H
 #define LLVM_LIB_TARGET_AMDGPU_UTILS_AMDGPUBASEINFO_H
 
 #include "SIDefines.h"
 #include "llvm/ADT/FloatingPointMode.h"
 #include "llvm/IR/CallingConv.h"
+#include "llvm/IR/InstrTypes.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/Alignment.h"
 #include <array>
 #include <functional>
 #include <utility>
 
 struct amd_kernel_code_t;
 

 LLVM_READNONE
 bool isInlinableIntLiteralV216(int32_t Literal);
 
 LLVM_READNONE
 bool isFoldableLiteralV216(int32_t Literal, bool HasInv2Pi);
 
 bool isArgPassedInSGPR(const Argument *Arg);
 
+bool isArgPassedInSGPR(const CallBase *CB, unsigned ArgNo);
+
 LLVM_READONLY
 bool isLegalSMRDEncodedUnsignedOffset(const MCSubtargetInfo &ST,
                                       int64_t EncodedOffset);
 
 LLVM_READONLY
 bool isLegalSMRDEncodedSignedOffset(const MCSubtargetInfo &ST,
                                     int64_t EncodedOffset,
                                     bool IsBuffer);

llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp

bool isArgPassedInSGPR(const Argument *A) {
   case CallingConv::AMDGPU_VS:
   case CallingConv::AMDGPU_LS:
   case CallingConv::AMDGPU_HS:
   case CallingConv::AMDGPU_ES:
   case CallingConv::AMDGPU_GS:
   case CallingConv::AMDGPU_PS:
   case CallingConv::AMDGPU_CS:
   case CallingConv::AMDGPU_Gfx:
-    // For non-compute shaders, SGPR inputs are marked with either inreg or byval.
-    // Everything else is in VGPRs.
-    return F->getAttributes().hasParamAttr(A->getArgNo(), Attribute::InReg) ||
-           F->getAttributes().hasParamAttr(A->getArgNo(), Attribute::ByVal);
+    // For non-compute shaders, SGPR inputs are marked with either inreg or
+    // byval. Everything else is in VGPRs.
+    return A->hasAttribute(Attribute::InReg) ||
+           A->hasAttribute(Attribute::ByVal);
+  default:
+    // TODO: Should calls support inreg for SGPR inputs?
+    return false;
+  }
+}
+
+bool isArgPassedInSGPR(const CallBase *CB, unsigned ArgNo) {
+  // Arguments to compute shaders are never a source of divergence.
+  CallingConv::ID CC = CB->getCallingConv();
+  switch (CC) {
+  case CallingConv::AMDGPU_KERNEL:
+  case CallingConv::SPIR_KERNEL:
+    return true;
+  case CallingConv::AMDGPU_VS:
+  case CallingConv::AMDGPU_LS:
+  case CallingConv::AMDGPU_HS:
+  case CallingConv::AMDGPU_ES:
+  case CallingConv::AMDGPU_GS:
+  case CallingConv::AMDGPU_PS:
+  case CallingConv::AMDGPU_CS:
+  case CallingConv::AMDGPU_Gfx:
+    // For non-compute shaders, SGPR inputs are marked with either inreg or
+    // byval. Everything else is in VGPRs.
+    return CB->paramHasAttr(ArgNo, Attribute::InReg) ||
+           CB->paramHasAttr(ArgNo, Attribute::ByVal);
   default:
     // TODO: Should calls support inreg for SGPR inputs?
     return false;
   }
 }
 
 static bool hasSMEMByteOffset(const MCSubtargetInfo &ST) {
   return isGCN3Encoding(ST) || isGFX10Plus(ST);
 }

llvm/test/Transforms/Inline/AMDGPU/amdgpu-inline-stack-argument-i64.ll

+; REQUIRES: asserts
+; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=inline -inline-cost-full=true -inline-threshold=0 -inline-instr-cost=5 -inline-call-penalty=0 -debug-only=inline < %s 2>&1 | FileCheck %s
+
+; CHECK:      NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %noinlinecall1 = call noundef i64 @non_inlining_call
+; CHECK:      NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %noinlinecall2 = call noundef i64 @non_inlining_call
+; CHECK-NOT:  NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %inlinecall1 = call noundef i64 @inlining_call
+; CHECK-NOT:  NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %inlinecall2 = call noundef i64 @inlining_call
+
+define noundef i64 @non_inlining_call(i64 noundef %a0, i64 noundef %b0, i64 noundef %c0, i64 noundef %d0, i64 noundef %e0, i64 noundef %f0, i64 noundef %g0, i64 noundef %h0, i64 noundef %i0, i64 noundef %j0, i64 noundef %k0, i64 noundef %l0, i64 noundef %m0, i64 noundef %n0, i64 noundef %o0, i64 noundef %p0) {
+entry:
+  %xor = xor i64 %a0, %b0
+  %xor1 = xor i64 %xor, %c0
+  %xor2 = xor i64 %xor1, %d0
+  %xor3 = xor i64 %xor2, %e0
+  %xor4 = xor i64 %xor3, %f0
+  %xor5 = xor i64 %xor4, %g0
+  %xor6 = xor i64 %xor5, %h0
+  %xor7 = xor i64 %xor6, %i0
+  %xor8 = xor i64 %xor7, %j0
+  %xor9 = xor i64 %xor8, %k0
+  %xor10 = xor i64 %xor9, %l0
+  %xor11 = xor i64 %xor10, %m0
+  %xor12 = xor i64 %xor11, %n0
+  %xor13 = xor i64 %xor12, %o0
+  %xor14 = xor i64 %xor13, %p0
+  %xor15 = xor i64 %xor14, 1
+  %xor16 = xor i64 %xor15, 2
+  ret i64 %xor16
+}
+
+define noundef i64 @inlining_call(i64 noundef %a0, i64 noundef %b0, i64 noundef %c0, i64 noundef %d0, i64 noundef %e0, i64 noundef %f0, i64 noundef %g0, i64 noundef %h0, i64 noundef %i0, i64 noundef %j0, i64 noundef %k0, i64 noundef %l0, i64 noundef %m0, i64 noundef %n0, i64 noundef %o0, i64 noundef %p0, i64 noundef %q0) {
+entry:
+  %xor = xor i64 %a0, %b0
+  %xor1 = xor i64 %xor, %c0
+  %xor2 = xor i64 %xor1, %d0
+  %xor3 = xor i64 %xor2, %e0
+  %xor4 = xor i64 %xor3, %f0
+  %xor5 = xor i64 %xor4, %g0
+  %xor6 = xor i64 %xor5, %h0
+  %xor7 = xor i64 %xor6, %i0
+  %xor8 = xor i64 %xor7, %j0
+  %xor9 = xor i64 %xor8, %k0
+  %xor10 = xor i64 %xor9, %l0
+  %xor11 = xor i64 %xor10, %m0
+  %xor12 = xor i64 %xor11, %n0
+  %xor13 = xor i64 %xor12, %o0
+  %xor14 = xor i64 %xor13, %p0
+  %xor15 = xor i64 %xor14, %q0
+  %xor16 = xor i64 %xor15, 1
+  %xor17 = xor i64 %xor16, 1
+  ret i64 %xor17
+}
+
+; Calling each (non-)inlining function twice to make sure they won't get the sole call inlining cost bonus. 
+define i64 @Caller(ptr noundef %in) {
+entry:
+  %arrayidx = getelementptr inbounds i64, ptr %in, i64 0
+  %a0 = load i64, ptr %arrayidx, align 4
+  %arrayidx1 = getelementptr inbounds i64, ptr %in, i64 1
+  %b0 = load i64, ptr %arrayidx1, align 4
+  %arrayidx2 = getelementptr inbounds i64, ptr %in, i64 2
+  %c0 = load i64, ptr %arrayidx2, align 4
+  %arrayidx3 = getelementptr inbounds i64, ptr %in, i64 3
+  %d0 = load i64, ptr %arrayidx3, align 4
+  %arrayidx4 = getelementptr inbounds i64, ptr %in, i64 4
+  %e0 = load i64, ptr %arrayidx4, align 4
+  %arrayidx5 = getelementptr inbounds i64, ptr %in, i64 5
+  %f0 = load i64, ptr %arrayidx5, align 4
+  %arrayidx6 = getelementptr inbounds i64, ptr %in, i64 6
+  %g0 = load i64, ptr %arrayidx6, align 4
+  %arrayidx7 = getelementptr inbounds i64, ptr %in, i64 7
+  %h0 = load i64, ptr %arrayidx7, align 4
+  %arrayidx8 = getelementptr inbounds i64, ptr %in, i64 8
+  %i0 = load i64, ptr %arrayidx8, align 4
+  %arrayidx9 = getelementptr inbounds i64, ptr %in, i64 9
+  %j0 = load i64, ptr %arrayidx9, align 4
+  %arrayidx10 = getelementptr inbounds i64, ptr %in, i64 10
+  %k0 = load i64, ptr %arrayidx10, align 4
+  %arrayidx11 = getelementptr inbounds i64, ptr %in, i64 11
+  %l0 = load i64, ptr %arrayidx11, align 4
+  %arrayidx12 = getelementptr inbounds i64, ptr %in, i64 12
+  %m0 = load i64, ptr %arrayidx12, align 4
+  %arrayidx13 = getelementptr inbounds i64, ptr %in, i64 13
+  %n0 = load i64, ptr %arrayidx13, align 4
+  %arrayidx14 = getelementptr inbounds i64, ptr %in, i64 14
+  %o0 = load i64, ptr %arrayidx14, align 4
+  %arrayidx15 = getelementptr inbounds i64, ptr %in, i64 15
+  %p0 = load i64, ptr %arrayidx15, align 4
+  %arrayidx16 = getelementptr inbounds i64, ptr %in, i64 16
+  %q0 = load i64, ptr %arrayidx16, align 4
+  %noinlinecall1 = call noundef i64 @non_inlining_call(i64 noundef %a0, i64 noundef %b0, i64 noundef %c0, i64 noundef %d0, i64 noundef %e0, i64 noundef %f0, i64 noundef %g0, i64 noundef %h0, i64 noundef %i0, i64 noundef %j0, i64 noundef %k0, i64 noundef %l0, i64 noundef %m0, i64 noundef %n0, i64 noundef %o0, i64 noundef %p0)
+  %add = add i64 0, %noinlinecall1
+  %noinlinecall2 = call noundef i64 @non_inlining_call(i64 noundef %a0, i64 noundef %b0, i64 noundef %c0, i64 noundef %d0, i64 noundef %e0, i64 noundef %f0, i64 noundef %g0, i64 noundef %h0, i64 noundef %i0, i64 noundef %j0, i64 noundef %k0, i64 noundef %l0, i64 noundef %m0, i64 noundef %n0, i64 noundef %o0, i64 noundef %p0)
+  %add2 = add i64 %add, %noinlinecall2
+  %inlinecall1 = call noundef i64 @inlining_call(i64 noundef %a0, i64 noundef %b0, i64 noundef %c0, i64 noundef %d0, i64 noundef %e0, i64 noundef %f0, i64 noundef %g0, i64 noundef %h0, i64 noundef %i0, i64 noundef %j0, i64 noundef %k0, i64 noundef %l0, i64 noundef %m0, i64 noundef %n0, i64 noundef %o0, i64 noundef %p0, i64 noundef %q0)
+  %add3 = add i64 %add2, %inlinecall1
+  %inlinecall2 = call noundef i64 @inlining_call(i64 noundef %a0, i64 noundef %b0, i64 noundef %c0, i64 noundef %d0, i64 noundef %e0, i64 noundef %f0, i64 noundef %g0, i64 noundef %h0, i64 noundef %i0, i64 noundef %j0, i64 noundef %k0, i64 noundef %l0, i64 noundef %m0, i64 noundef %n0, i64 noundef %o0, i64 noundef %p0, i64 noundef %q0)
+  %add4 = add i64 %add3, %inlinecall2
+  ret i64 %add4
+}

llvm/test/Transforms/Inline/AMDGPU/amdgpu-inline-stack-argument.ll

+; REQUIRES: asserts
+; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=inline -inline-cost-full=true -inline-threshold=0 -inline-instr-cost=5 -inline-call-penalty=0 -debug-only=inline < %s 2>&1 | FileCheck %s
+
+; CHECK:      NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %noinlinecall1 = call noundef i32 @non_inlining_call
+; CHECK:      NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %noinlinecall2 = call noundef i32 @non_inlining_call
+; CHECK-NOT:  NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %inlinecall1 = call noundef i32 @inlining_call
+; CHECK-NOT:  NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %inlinecall2 = call noundef i32 @inlining_call
+
+define noundef i32 @non_inlining_call(i32 noundef %a0, i32 noundef %b0, i32 noundef %c0, i32 noundef %d0, i32 noundef %e0, i32 noundef %f0, i32 noundef %g0, i32 noundef %h0, i32 noundef %i0, i32 noundef %j0, i32 noundef %k0, i32 noundef %l0, i32 noundef %m0, i32 noundef %n0, i32 noundef %o0, i32 noundef %p0, i32 noundef %q0, i32 noundef %r0, i32 noundef %s0, i32 noundef %t0, i32 noundef %u0, i32 noundef %v0, i32 noundef %w0, i32 noundef %x0, i32 noundef %y0, i32 noundef %z0, i32 noundef %a1, i32 noundef %b1, i32 noundef %c1, i32 noundef %d1, i32 noundef %e1, i32 noundef %f1) {
+entry:
+  %xor = xor i32 %a0, %b0
+  %xor1 = xor i32 %xor, %c0
+  %xor2 = xor i32 %xor1, %d0
+  %xor3 = xor i32 %xor2, %e0
+  %xor4 = xor i32 %xor3, %f0
+  %xor5 = xor i32 %xor4, %g0
+  %xor6 = xor i32 %xor5, %h0
+  %xor7 = xor i32 %xor6, %i0
+  %xor8 = xor i32 %xor7, %j0
+  %xor9 = xor i32 %xor8, %k0
+  %xor10 = xor i32 %xor9, %l0
+  %xor11 = xor i32 %xor10, %m0
+  %xor12 = xor i32 %xor11, %n0
+  %xor13 = xor i32 %xor12, %o0
+  %xor14 = xor i32 %xor13, %p0
+  %xor15 = xor i32 %xor14, %q0
+  %xor16 = xor i32 %xor15, %r0
+  %xor17 = xor i32 %xor16, %s0
+  %xor18 = xor i32 %xor17, %t0
+  %xor19 = xor i32 %xor18, %u0
+  %xor20 = xor i32 %xor19, %v0
+  %xor21 = xor i32 %xor20, %w0
+  %xor22 = xor i32 %xor21, %x0
+  %xor23 = xor i32 %xor22, %y0
+  %xor24 = xor i32 %xor23, %z0
+  %xor25 = xor i32 %xor24, %a1
+  %xor26 = xor i32 %xor25, %b1
+  %xor27 = xor i32 %xor26, %c1
+  %xor28 = xor i32 %xor27, %d1
+  %xor29 = xor i32 %xor28, %e1
+  %xor30 = xor i32 %xor29, %f1
+  %xor31 = xor i32 %xor30, 1
+  %xor32 = xor i32 %xor31, 2
+  ret i32 %xor32
+}
+
+define noundef i32 @inlining_call(i32 noundef %a0, i32 noundef %b0, i32 noundef %c0, i32 noundef %d0, i32 noundef %e0, i32 noundef %f0, i32 noundef %g0, i32 noundef %h0, i32 noundef %i0, i32 noundef %j0, i32 noundef %k0, i32 noundef %l0, i32 noundef %m0, i32 noundef %n0, i32 noundef %o0, i32 noundef %p0, i32 noundef %q0, i32 noundef %r0, i32 noundef %s0, i32 noundef %t0, i32 noundef %u0, i32 noundef %v0, i32 noundef %w0, i32 noundef %x0, i32 noundef %y0, i32 noundef %z0, i32 noundef %a1, i32 noundef %b1, i32 noundef %c1, i32 noundef %d1, i32 noundef %e1, i32 noundef %f1, i32 noundef %g1) {
+entry:
+  %xor = xor i32 %a0, %b0
+  %xor1 = xor i32 %xor, %c0
+  %xor2 = xor i32 %xor1, %d0
+  %xor3 = xor i32 %xor2, %e0
+  %xor4 = xor i32 %xor3, %f0
+  %xor5 = xor i32 %xor4, %g0
+  %xor6 = xor i32 %xor5, %h0
+  %xor7 = xor i32 %xor6, %i0
+  %xor8 = xor i32 %xor7, %j0
+  %xor9 = xor i32 %xor8, %k0
+  %xor10 = xor i32 %xor9, %l0
+  %xor11 = xor i32 %xor10, %m0
+  %xor12 = xor i32 %xor11, %n0
+  %xor13 = xor i32 %xor12, %o0
+  %xor14 = xor i32 %xor13, %p0
+  %xor15 = xor i32 %xor14, %q0
+  %xor16 = xor i32 %xor15, %r0
+  %xor17 = xor i32 %xor16, %s0
+  %xor18 = xor i32 %xor17, %t0
+  %xor19 = xor i32 %xor18, %u0
+  %xor20 = xor i32 %xor19, %v0
+  %xor21 = xor i32 %xor20, %w0
+  %xor22 = xor i32 %xor21, %x0
+  %xor23 = xor i32 %xor22, %y0
+  %xor24 = xor i32 %xor23, %z0
+  %xor25 = xor i32 %xor24, %a1
+  %xor26 = xor i32 %xor25, %b1
+  %xor27 = xor i32 %xor26, %c1
+  %xor28 = xor i32 %xor27, %d1
+  %xor29 = xor i32 %xor28, %e1
+  %xor30 = xor i32 %xor29, %f1
+  %xor31 = xor i32 %xor30, %g1
+  %xor32 = xor i32 %xor30, 1
+  %xor33 = xor i32 %xor31, 2
+  ret i32 %xor33
+}
+
+; Calling each (non-)inlining function twice to make sure they won't get the sole call inlining cost bonus. 
+define i32 @Caller(ptr noundef %in) {
+entry:
+  %arrayidx = getelementptr inbounds i32, ptr %in, i64 0
+  %a0 = load i32, ptr %arrayidx, align 4
+  %arrayidx1 = getelementptr inbounds i32, ptr %in, i64 1
+  %b0 = load i32, ptr %arrayidx1, align 4
+  %arrayidx2 = getelementptr inbounds i32, ptr %in, i64 2
+  %c0 = load i32, ptr %arrayidx2, align 4
+  %arrayidx3 = getelementptr inbounds i32, ptr %in, i64 3
+  %d0 = load i32, ptr %arrayidx3, align 4
+  %arrayidx4 = getelementptr inbounds i32, ptr %in, i64 4
+  %e0 = load i32, ptr %arrayidx4, align 4
+  %arrayidx5 = getelementptr inbounds i32, ptr %in, i64 5
+  %f0 = load i32, ptr %arrayidx5, align 4
+  %arrayidx6 = getelementptr inbounds i32, ptr %in, i64 6
+  %g0 = load i32, ptr %arrayidx6, align 4
+  %arrayidx7 = getelementptr inbounds i32, ptr %in, i64 7
+  %h0 = load i32, ptr %arrayidx7, align 4
+  %arrayidx8 = getelementptr inbounds i32, ptr %in, i64 8
+  %i0 = load i32, ptr %arrayidx8, align 4
+  %arrayidx9 = getelementptr inbounds i32, ptr %in, i64 9
+  %j0 = load i32, ptr %arrayidx9, align 4
+  %arrayidx10 = getelementptr inbounds i32, ptr %in, i64 10
+  %k0 = load i32, ptr %arrayidx10, align 4
+  %arrayidx11 = getelementptr inbounds i32, ptr %in, i64 11
+  %l0 = load i32, ptr %arrayidx11, align 4
+  %arrayidx12 = getelementptr inbounds i32, ptr %in, i64 12
+  %m0 = load i32, ptr %arrayidx12, align 4
+  %arrayidx13 = getelementptr inbounds i32, ptr %in, i64 13
+  %n0 = load i32, ptr %arrayidx13, align 4
+  %arrayidx14 = getelementptr inbounds i32, ptr %in, i64 14
+  %o0 = load i32, ptr %arrayidx14, align 4
+  %arrayidx15 = getelementptr inbounds i32, ptr %in, i64 15
+  %p0 = load i32, ptr %arrayidx15, align 4
+  %arrayidx16 = getelementptr inbounds i32, ptr %in, i64 16
+  %q0 = load i32, ptr %arrayidx16, align 4
+  %arrayidx17 = getelementptr inbounds i32, ptr %in, i64 17
+  %r0 = load i32, ptr %arrayidx17, align 4
+  %arrayidx18 = getelementptr inbounds i32, ptr %in, i64 18
+  %s0 = load i32, ptr %arrayidx18, align 4
+  %arrayidx19 = getelementptr inbounds i32, ptr %in, i64 19
+  %t0 = load i32, ptr %arrayidx19, align 4
+  %arrayidx20 = getelementptr inbounds i32, ptr %in, i64 20
+  %u0 = load i32, ptr %arrayidx20, align 4
+  %arrayidx21 = getelementptr inbounds i32, ptr %in, i64 21
+  %v0 = load i32, ptr %arrayidx21, align 4
+  %arrayidx22 = getelementptr inbounds i32, ptr %in, i64 22
+  %w0 = load i32, ptr %arrayidx22, align 4
+  %arrayidx23 = getelementptr inbounds i32, ptr %in, i64 23
+  %x0 = load i32, ptr %arrayidx23, align 4
+  %arrayidx24 = getelementptr inbounds i32, ptr %in, i64 24
+  %y0 = load i32, ptr %arrayidx24, align 4
+  %arrayidx25 = getelementptr inbounds i32, ptr %in, i64 25
+  %z0 = load i32, ptr %arrayidx25, align 4
+  %arrayidx26 = getelementptr inbounds i32, ptr %in, i64 26
+  %a1 = load i32, ptr %arrayidx26, align 4
+  %arrayidx27 = getelementptr inbounds i32, ptr %in, i64 27
+  %b1 = load i32, ptr %arrayidx27, align 4
+  %arrayidx28 = getelementptr inbounds i32, ptr %in, i64 28
+  %c1 = load i32, ptr %arrayidx28, align 4
+  %arrayidx29 = getelementptr inbounds i32, ptr %in, i64 29
+  %d1 = load i32, ptr %arrayidx29, align 4
+  %arrayidx30 = getelementptr inbounds i32, ptr %in, i64 30
+  %e1 = load i32, ptr %arrayidx30, align 4
+  %arrayidx31 = getelementptr inbounds i32, ptr %in, i64 31
+  %f1 = load i32, ptr %arrayidx31, align 4
+  %arrayidx32 = getelementptr inbounds i32, ptr %in, i64 32
+  %g1 = load i32, ptr %arrayidx32, align 4
+  %noinlinecall1 = call noundef i32 @non_inlining_call(i32 noundef %a0, i32 noundef %b0, i32 noundef %c0, i32 noundef %d0, i32 noundef %e0, i32 noundef %f0, i32 noundef %g0, i32 noundef %h0, i32 noundef %i0, i32 noundef %j0, i32 noundef %k0, i32 noundef %l0, i32 noundef %m0, i32 noundef %n0, i32 noundef %o0, i32 noundef %p0, i32 noundef %q0, i32 noundef %r0, i32 noundef %s0, i32 noundef %t0, i32 noundef %u0, i32 noundef %v0, i32 noundef %w0, i32 noundef %x0, i32 noundef %y0, i32 noundef %z0, i32 noundef %a1, i32 noundef %b1, i32 noundef %c1, i32 noundef %d1, i32 noundef %e1, i32 noundef %f1)
+  %add = add i32 0, %noinlinecall1
+  %noinlinecall2 = call noundef i32 @non_inlining_call(i32 noundef %a0, i32 noundef %b0, i32 noundef %c0, i32 noundef %d0, i32 noundef %e0, i32 noundef %f0, i32 noundef %g0, i32 noundef %h0, i32 noundef %i0, i32 noundef %j0, i32 noundef %k0, i32 noundef %l0, i32 noundef %m0, i32 noundef %n0, i32 noundef %o0, i32 noundef %p0, i32 noundef %q0, i32 noundef %r0, i32 noundef %s0, i32 noundef %t0, i32 noundef %u0, i32 noundef %v0, i32 noundef %w0, i32 noundef %x0, i32 noundef %y0, i32 noundef %z0, i32 noundef %a1, i32 noundef %b1, i32 noundef %c1, i32 noundef %d1, i32 noundef %e1, i32 noundef %f1)
+  %add2 = add i32 %add, %noinlinecall2
+  %inlinecall1 = call noundef i32 @inlining_call(i32 noundef %a0, i32 noundef %b0, i32 noundef %c0, i32 noundef %d0, i32 noundef %e0, i32 noundef %f0, i32 noundef %g0, i32 noundef %h0, i32 noundef %i0, i32 noundef %j0, i32 noundef %k0, i32 noundef %l0, i32 noundef %m0, i32 noundef %n0, i32 noundef %o0, i32 noundef %p0, i32 noundef %q0, i32 noundef %r0, i32 noundef %s0, i32 noundef %t0, i32 noundef %u0, i32 noundef %v0, i32 noundef %w0, i32 noundef %x0, i32 noundef %y0, i32 noundef %z0, i32 noundef %a1, i32 noundef %b1, i32 noundef %c1, i32 noundef %d1, i32 noundef %e1, i32 noundef %f1, i32 noundef %g1)
+  %add3 = add i32 %add2, %inlinecall1
+  %inlinecall2 = call noundef i32 @inlining_call(i32 noundef %a0, i32 noundef %b0, i32 noundef %c0, i32 noundef %d0, i32 noundef %e0, i32 noundef %f0, i32 noundef %g0, i32 noundef %h0, i32 noundef %i0, i32 noundef %j0, i32 noundef %k0, i32 noundef %l0, i32 noundef %m0, i32 noundef %n0, i32 noundef %o0, i32 noundef %p0, i32 noundef %q0, i32 noundef %r0, i32 noundef %s0, i32 noundef %t0, i32 noundef %u0, i32 noundef %v0, i32 noundef %w0, i32 noundef %x0, i32 noundef %y0, i32 noundef %z0, i32 noundef %a1, i32 noundef %b1, i32 noundef %c1, i32 noundef %d1, i32 noundef %e1, i32 noundef %f1, i32 noundef %g1)
+  %add4 = add i32 %add3, %inlinecall2
+  ret i32 %add4
+}

llvm/test/Transforms/Inline/AMDGPU/amdgpu-inline-stack-array-ptr-argument.ll

+; REQUIRES: asserts
+; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=inline -inline-cost-full=true -inline-threshold=0 -inline-instr-cost=5 -inline-call-penalty=0 -debug-only=inline < %s 2>&1 | FileCheck %s
+
+; CHECK:      NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %noinlinecall1 = call noundef i64 @non_inlining_call
+; CHECK:      NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %noinlinecall2 = call noundef i64 @non_inlining_call
+; CHECK-NOT:  NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %inlinecall1 = call noundef i64 @inlining_call
+; CHECK-NOT:  NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %inlinecall2 = call noundef i64 @inlining_call
+
+define noundef i64 @non_inlining_call([2 x ptr] noundef %ptrarr, ptr noundef %ptrc0, ptr noundef %ptrd0, ptr noundef %ptre0, ptr noundef %ptrf0, ptr noundef %ptrg0, ptr noundef %ptrh0, ptr noundef %ptri0, ptr noundef %ptrj0, ptr noundef %ptrk0, ptr noundef %ptrl0, ptr noundef %ptrm0, ptr noundef %ptrn0, ptr noundef %ptro0, ptr noundef %ptrp0) {
+entry:
+  %ptra0 = extractvalue [2 x ptr] %ptrarr, 0
+  %ptrb0 = extractvalue [2 x ptr] %ptrarr, 1
+  %a0 = load i64, ptr %ptra0, align 8
+  %b0 = load i64, ptr %ptrb0, align 8
+  %c0 = load i64, ptr %ptrc0, align 8
+  %d0 = load i64, ptr %ptrd0, align 8
+  %e0 = load i64, ptr %ptre0, align 8
+  %f0 = load i64, ptr %ptrf0, align 8
+  %g0 = load i64, ptr %ptrg0, align 8
+  %h0 = load i64, ptr %ptrh0, align 8
+  %i0 = load i64, ptr %ptri0, align 8
+  %j0 = load i64, ptr %ptrj0, align 8
+  %k0 = load i64, ptr %ptrk0, align 8
+  %l0 = load i64, ptr %ptrl0, align 8
+  %m0 = load i64, ptr %ptrm0, align 8
+  %n0 = load i64, ptr %ptrn0, align 8
+  %o0 = load i64, ptr %ptro0, align 8
+  %p0 = load i64, ptr %ptrp0, align 8
+  %xor = xor i64 %a0, %b0
+  %xor1 = xor i64 %xor, %c0
+  %xor2 = xor i64 %xor1, %d0
+  %xor3 = xor i64 %xor2, %e0
+  %xor4 = xor i64 %xor3, %f0
+  %xor5 = xor i64 %xor4, %g0
+  %xor6 = xor i64 %xor5, %h0
+  %xor7 = xor i64 %xor6, %i0
+  %xor8 = xor i64 %xor7, %j0
+  %xor9 = xor i64 %xor8, %k0
+  %xor10 = xor i64 %xor9, %l0
+  %xor11 = xor i64 %xor10, %m0
+  %xor12 = xor i64 %xor11, %n0
+  %xor13 = xor i64 %xor12, %o0
+  %xor14 = xor i64 %xor13, %p0
+  ret i64 %xor14
+}
+
+define noundef i64 @inlining_call([2 x ptr] noundef %ptrarr, ptr noundef %ptrc0, ptr noundef %ptrd0, ptr noundef %ptre0, ptr noundef %ptrf0, ptr noundef %ptrg0, ptr noundef %ptrh0, ptr noundef %ptri0, ptr noundef %ptrj0, ptr noundef %ptrk0, ptr noundef %ptrl0, ptr noundef %ptrm0, ptr noundef %ptrn0, ptr noundef %ptro0, ptr noundef %ptrp0, ptr noundef %ptrq0) {
+entry:
+  %ptra0 = extractvalue [2 x ptr] %ptrarr, 0
+  %ptrb0 = extractvalue [2 x ptr] %ptrarr, 1
+  %a0 = load i64, ptr %ptra0, align 8
+  %b0 = load i64, ptr %ptrb0, align 8
+  %c0 = load i64, ptr %ptrc0, align 8
+  %d0 = load i64, ptr %ptrd0, align 8
+  %e0 = load i64, ptr %ptre0, align 8
+  %f0 = load i64, ptr %ptrf0, align 8
+  %g0 = load i64, ptr %ptrg0, align 8
+  %h0 = load i64, ptr %ptrh0, align 8
+  %i0 = load i64, ptr %ptri0, align 8
+  %j0 = load i64, ptr %ptrj0, align 8
+  %k0 = load i64, ptr %ptrk0, align 8
+  %l0 = load i64, ptr %ptrl0, align 8
+  %m0 = load i64, ptr %ptrm0, align 8
+  %n0 = load i64, ptr %ptrn0, align 8
+  %o0 = load i64, ptr %ptro0, align 8
+  %p0 = load i64, ptr %ptrp0, align 8
+  %q0 = load i64, ptr %ptrq0, align 8
+  %xor = xor i64 %a0, %b0
+  %xor1 = xor i64 %xor, %c0
+  %xor2 = xor i64 %xor1, %d0
+  %xor3 = xor i64 %xor2, %e0
+  %xor4 = xor i64 %xor3, %f0
+  %xor5 = xor i64 %xor4, %g0
+  %xor6 = xor i64 %xor5, %h0
+  %xor7 = xor i64 %xor6, %i0
+  %xor8 = xor i64 %xor7, %j0
+  %xor9 = xor i64 %xor8, %k0
+  %xor10 = xor i64 %xor9, %l0
+  %xor11 = xor i64 %xor10, %m0
+  %xor12 = xor i64 %xor11, %n0
+  %xor13 = xor i64 %xor12, %o0
+  %xor14 = xor i64 %xor13, %p0
+  %xor15 = xor i64 %xor14, %q0
+  ret i64 %xor15
+}
+
+; Calling each (non-)inlining function twice to make sure they won't get the sole call inlining cost bonus. 
+define i64 @Caller(ptr noundef %in) {
+entry:
+  %a0 = getelementptr inbounds i64, ptr %in, i64 0
+  %b0 = getelementptr inbounds i64, ptr %in, i64 1
+  %arr0 = insertvalue [2 x ptr] undef, ptr %a0, 0
+  %arr1 = insertvalue [2 x ptr] %arr0, ptr %b0, 1
+  %c0 = getelementptr inbounds i64, ptr %in, i64 2
+  %d0 = getelementptr inbounds i64, ptr %in, i64 3
+  %e0 = getelementptr inbounds i64, ptr %in, i64 4
+  %f0 = getelementptr inbounds i64, ptr %in, i64 5
+  %g0 = getelementptr inbounds i64, ptr %in, i64 6
+  %h0 = getelementptr inbounds i64, ptr %in, i64 7
+  %i0 = getelementptr inbounds i64, ptr %in, i64 8
+  %j0 = getelementptr inbounds i64, ptr %in, i64 9
+  %k0 = getelementptr inbounds i64, ptr %in, i64 10
+  %l0 = getelementptr inbounds i64, ptr %in, i64 11
+  %m0 = getelementptr inbounds i64, ptr %in, i64 12
+  %n0 = getelementptr inbounds i64, ptr %in, i64 13
+  %o0 = getelementptr inbounds i64, ptr %in, i64 14
+  %p0 = getelementptr inbounds i64, ptr %in, i64 15
+  %q0 = getelementptr inbounds i64, ptr %in, i64 16
+  %noinlinecall1 = call noundef i64 @non_inlining_call([2 x ptr] noundef %arr1, ptr noundef %c0, ptr noundef %d0, ptr noundef %e0, ptr noundef %f0, ptr noundef %g0, ptr noundef %h0, ptr noundef %i0, ptr noundef %j0, ptr noundef %k0, ptr noundef %l0, ptr noundef %m0, ptr noundef %n0, ptr noundef %o0, ptr noundef %p0)
+  %add = add i64 0, %noinlinecall1
+  %noinlinecall2 = call noundef i64 @non_inlining_call([2 x ptr] noundef %arr1, ptr noundef %c0, ptr noundef %d0, ptr noundef %e0, ptr noundef %f0, ptr noundef %g0, ptr noundef %h0, ptr noundef %i0, ptr noundef %j0, ptr noundef %k0, ptr noundef %l0, ptr noundef %m0, ptr noundef %n0, ptr noundef %o0, ptr noundef %p0)
+  %add2 = add i64 %add, %noinlinecall2
+  %inlinecall1 = call noundef i64 @inlining_call([2 x ptr] noundef %arr1, ptr noundef %c0, ptr noundef %d0, ptr noundef %e0, ptr noundef %f0, ptr noundef %g0, ptr noundef %h0, ptr noundef %i0, ptr noundef %j0, ptr noundef %k0, ptr noundef %l0, ptr noundef %m0, ptr noundef %n0, ptr noundef %o0, ptr noundef %p0, ptr noundef %q0)
+  %add3 = add i64 %add2, %inlinecall1
+  %inlinecall2 = call noundef i64 @inlining_call([2 x ptr] noundef %arr1, ptr noundef %c0, ptr noundef %d0, ptr noundef %e0, ptr noundef %f0, ptr noundef %g0, ptr noundef %h0, ptr noundef %i0, ptr noundef %j0, ptr noundef %k0, ptr noundef %l0, ptr noundef %m0, ptr noundef %n0, ptr noundef %o0, ptr noundef %p0, ptr noundef %q0)
+  %add4 = add i64 %add3, %inlinecall2
+  ret i64 %add4
+}

llvm/test/Transforms/Inline/AMDGPU/amdgpu-inline-stack-indirect-call-argument.ll

+; REQUIRES: asserts
+; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=inline -inline-cost-full=true -inline-threshold=0 -inline-instr-cost=5 -inline-call-penalty=0 -debug-only=inline < %s 2>&1 | FileCheck %s
+
+; CHECK:      Inlining (cost={{-+[0-9]+}}, threshold=330), Call:   call void @Dummy
+
+define void @Wrapper(ptr nocapture nofree noundef readonly %func, i64 noundef %a0, i64 noundef %b0, i64 noundef %c0, i64 noundef %d0, i64 noundef %e0, i64 noundef %f0, i64 noundef %g0, i64 noundef %h0, i64 noundef %i0, i64 noundef %j0, i64 noundef %k0, i64 noundef %l0, i64 noundef %m0, i64 noundef %n0, i64 noundef %o0, i64 noundef %p0, i64 noundef %q0) {
+entry:
+  call void %func(i64 noundef %a0, i64 noundef %b0, i64 noundef %c0, i64 noundef %d0, i64 noundef %e0, i64 noundef %f0, i64 noundef %g0, i64 noundef %h0, i64 noundef %i0, i64 noundef %j0, i64 noundef %k0, i64 noundef %l0, i64 noundef %m0, i64 noundef %n0, i64 noundef %o0, i64 noundef %p0, i64 noundef %q0)
+  ret void
+}
+
+define internal void @Dummy(i64 noundef %a0, i64 noundef %b0, i64 noundef %c0, i64 noundef %d0, i64 noundef %e0, i64 noundef %f0, i64 noundef %g0, i64 noundef %h0, i64 noundef %i0, i64 noundef %j0, i64 noundef %k0, i64 noundef %l0, i64 noundef %m0, i64 noundef %n0, i64 noundef %o0, i64 noundef %p0, i64 noundef %q0) {
+entry:
+  ret void
+}
+
+define void @Caller(i64 noundef %a0, i64 noundef %b0, i64 noundef %c0, i64 noundef %d0, i64 noundef %e0, i64 noundef %f0, i64 noundef %g0, i64 noundef %h0, i64 noundef %i0, i64 noundef %j0, i64 noundef %k0, i64 noundef %l0, i64 noundef %m0, i64 noundef %n0, i64 noundef %o0, i64 noundef %p0, i64 noundef %q0) minsize {
+entry:
+  call void @Wrapper(ptr noundef @Dummy, i64 noundef %a0, i64 noundef %b0, i64 noundef %c0, i64 noundef %d0, i64 noundef %e0, i64 noundef %f0, i64 noundef %g0, i64 noundef %h0, i64 noundef %i0, i64 noundef %j0, i64 noundef %k0, i64 noundef %l0, i64 noundef %m0, i64 noundef %n0, i64 noundef %o0, i64 noundef %p0, i64 noundef %q0)
+  ret void
+}

llvm/test/Transforms/Inline/AMDGPU/amdgpu-inline-stack-ptr-argument.ll

+; REQUIRES: asserts
+; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=inline -inline-cost-full=true -inline-threshold=0 -inline-instr-cost=5 -inline-call-penalty=0 -debug-only=inline < %s 2>&1 | FileCheck %s
+
+; CHECK:      NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %noinlinecall1 = call noundef i64 @non_inlining_call
+; CHECK:      NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %noinlinecall2 = call noundef i64 @non_inlining_call
+; CHECK-NOT:  NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %inlinecall1 = call noundef i64 @inlining_call
+; CHECK-NOT:  NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %inlinecall2 = call noundef i64 @inlining_call
+
+define noundef i64 @non_inlining_call(ptr noundef %ptra0, ptr noundef %ptrb0, ptr noundef %ptrc0, ptr noundef %ptrd0, ptr noundef %ptre0, ptr noundef %ptrf0, ptr noundef %ptrg0, ptr noundef %ptrh0, ptr noundef %ptri0, ptr noundef %ptrj0, ptr noundef %ptrk0, ptr noundef %ptrl0, ptr noundef %ptrm0, ptr noundef %ptrn0, ptr noundef %ptro0, ptr noundef %ptrp0) {
+entry:
+  %a0 = load i64, ptr %ptra0, align 8
+  %b0 = load i64, ptr %ptrb0, align 8
+  %c0 = load i64, ptr %ptrc0, align 8
+  %d0 = load i64, ptr %ptrd0, align 8
+  %e0 = load i64, ptr %ptre0, align 8
+  %f0 = load i64, ptr %ptrf0, align 8
+  %g0 = load i64, ptr %ptrg0, align 8
+  %h0 = load i64, ptr %ptrh0, align 8
+  %i0 = load i64, ptr %ptri0, align 8
+  %j0 = load i64, ptr %ptrj0, align 8
+  %k0 = load i64, ptr %ptrk0, align 8
+  %l0 = load i64, ptr %ptrl0, align 8
+  %m0 = load i64, ptr %ptrm0, align 8
+  %n0 = load i64, ptr %ptrn0, align 8
+  %o0 = load i64, ptr %ptro0, align 8
+  %p0 = load i64, ptr %ptrp0, align 8
+  %xor = xor i64 %a0, %b0
+  %xor1 = xor i64 %xor, %c0
+  %xor2 = xor i64 %xor1, %d0
+  %xor3 = xor i64 %xor2, %e0
+  %xor4 = xor i64 %xor3, %f0
+  %xor5 = xor i64 %xor4, %g0
+  %xor6 = xor i64 %xor5, %h0
+  %xor7 = xor i64 %xor6, %i0
+  %xor8 = xor i64 %xor7, %j0
+  %xor9 = xor i64 %xor8, %k0
+  %xor10 = xor i64 %xor9, %l0
+  %xor11 = xor i64 %xor10, %m0
+  %xor12 = xor i64 %xor11, %n0
+  %xor13 = xor i64 %xor12, %o0
+  %xor14 = xor i64 %xor13, %p0
+  ret i64 %xor14
+}
+
+define noundef i64 @inlining_call(ptr noundef %ptra0, ptr noundef %ptrb0, ptr noundef %ptrc0, ptr noundef %ptrd0, ptr noundef %ptre0, ptr noundef %ptrf0, ptr noundef %ptrg0, ptr noundef %ptrh0, ptr noundef %ptri0, ptr noundef %ptrj0, ptr noundef %ptrk0, ptr noundef %ptrl0, ptr noundef %ptrm0, ptr noundef %ptrn0, ptr noundef %ptro0, ptr noundef %ptrp0, ptr noundef %ptrq0) {
+entry:
+  %a0 = load i64, ptr %ptra0, align 8
+  %b0 = load i64, ptr %ptrb0, align 8
+  %c0 = load i64, ptr %ptrc0, align 8
+  %d0 = load i64, ptr %ptrd0, align 8
+  %e0 = load i64, ptr %ptre0, align 8
+  %f0 = load i64, ptr %ptrf0, align 8
+  %g0 = load i64, ptr %ptrg0, align 8
+  %h0 = load i64, ptr %ptrh0, align 8
+  %i0 = load i64, ptr %ptri0, align 8
+  %j0 = load i64, ptr %ptrj0, align 8
+  %k0 = load i64, ptr %ptrk0, align 8
+  %l0 = load i64, ptr %ptrl0, align 8
+  %m0 = load i64, ptr %ptrm0, align 8
+  %n0 = load i64, ptr %ptrn0, align 8
+  %o0 = load i64, ptr %ptro0, align 8
+  %p0 = load i64, ptr %ptrp0, align 8
+  %q0 = load i64, ptr %ptrq0, align 8
+  %xor = xor i64 %a0, %b0
+  %xor1 = xor i64 %xor, %c0
+  %xor2 = xor i64 %xor1, %d0
+  %xor3 = xor i64 %xor2, %e0
+  %xor4 = xor i64 %xor3, %f0
+  %xor5 = xor i64 %xor4, %g0
+  %xor6 = xor i64 %xor5, %h0
+  %xor7 = xor i64 %xor6, %i0
+  %xor8 = xor i64 %xor7, %j0
+  %xor9 = xor i64 %xor8, %k0
+  %xor10 = xor i64 %xor9, %l0
+  %xor11 = xor i64 %xor10, %m0
+  %xor12 = xor i64 %xor11, %n0
+  %xor13 = xor i64 %xor12, %o0
+  %xor14 = xor i64 %xor13, %p0
+  %xor15 = xor i64 %xor14, %q0
+  ret i64 %xor15
+}
+
+; Calling each (non-)inlining function twice to make sure they won't get the sole call inlining cost bonus. 
+define i64 @Caller(ptr noundef %in) {
+entry:
+  %a0 = getelementptr inbounds i64, ptr %in, i64 0
+  %b0 = getelementptr inbounds i64, ptr %in, i64 1
+  %c0 = getelementptr inbounds i64, ptr %in, i64 2
+  %d0 = getelementptr inbounds i64, ptr %in, i64 3
+  %e0 = getelementptr inbounds i64, ptr %in, i64 4
+  %f0 = getelementptr inbounds i64, ptr %in, i64 5
+  %g0 = getelementptr inbounds i64, ptr %in, i64 6
+  %h0 = getelementptr inbounds i64, ptr %in, i64 7
+  %i0 = getelementptr inbounds i64, ptr %in, i64 8
+  %j0 = getelementptr inbounds i64, ptr %in, i64 9
+  %k0 = getelementptr inbounds i64, ptr %in, i64 10
+  %l0 = getelementptr inbounds i64, ptr %in, i64 11
+  %m0 = getelementptr inbounds i64, ptr %in, i64 12
+  %n0 = getelementptr inbounds i64, ptr %in, i64 13
+  %o0 = getelementptr inbounds i64, ptr %in, i64 14
+  %p0 = getelementptr inbounds i64, ptr %in, i64 15
+  %q0 = getelementptr inbounds i64, ptr %in, i64 16
+  %noinlinecall1 = call noundef i64 @non_inlining_call(ptr noundef %a0, ptr noundef %b0, ptr noundef %c0, ptr noundef %d0, ptr noundef %e0, ptr noundef %f0, ptr noundef %g0, ptr noundef %h0, ptr noundef %i0, ptr noundef %j0, ptr noundef %k0, ptr noundef %l0, ptr noundef %m0, ptr noundef %n0, ptr noundef %o0, ptr noundef %p0)
+  %add = add i64 0, %noinlinecall1
+  %noinlinecall2 = call noundef i64 @non_inlining_call(ptr noundef %a0, ptr noundef %b0, ptr noundef %c0, ptr noundef %d0, ptr noundef %e0, ptr noundef %f0, ptr noundef %g0, ptr noundef %h0, ptr noundef %i0, ptr noundef %j0, ptr noundef %k0, ptr noundef %l0, ptr noundef %m0, ptr noundef %n0, ptr noundef %o0, ptr noundef %p0)
+  %add2 = add i64 %add, %noinlinecall2
+  %inlinecall1 = call noundef i64 @inlining_call(ptr noundef %a0, ptr noundef %b0, ptr noundef %c0, ptr noundef %d0, ptr noundef %e0, ptr noundef %f0, ptr noundef %g0, ptr noundef %h0, ptr noundef %i0, ptr noundef %j0, ptr noundef %k0, ptr noundef %l0, ptr noundef %m0, ptr noundef %n0, ptr noundef %o0, ptr noundef %p0, ptr noundef %q0)
+  %add3 = add i64 %add2, %inlinecall1
+  %inlinecall2 = call noundef i64 @inlining_call(ptr noundef %a0, ptr noundef %b0, ptr noundef %c0, ptr noundef %d0, ptr noundef %e0, ptr noundef %f0, ptr noundef %g0, ptr noundef %h0, ptr noundef %i0, ptr noundef %j0, ptr noundef %k0, ptr noundef %l0, ptr noundef %m0, ptr noundef %n0, ptr noundef %o0, ptr noundef %p0, ptr noundef %q0)
+  %add4 = add i64 %add3, %inlinecall2
+  ret i64 %add4
+}

llvm/test/Transforms/Inline/AMDGPU/amdgpu-inline-stack-struct-argument.ll

+; REQUIRES: asserts
+; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=inline -inline-cost-full=true -inline-threshold=0 -inline-instr-cost=5 -inline-call-penalty=0 -debug-only=inline < %s 2>&1 | FileCheck %s
+
+; CHECK:      NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %noinlinecall1 = call noundef i64 @non_inlining_call
+; CHECK:      NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %noinlinecall2 = call noundef i64 @non_inlining_call
+; CHECK-NOT:  NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %inlinecall1 = call noundef i64 @inlining_call
+; CHECK-NOT:  NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %inlinecall2 = call noundef i64 @inlining_call
+
+%noinlineT =  type {{ptr, ptr}, ptr, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64}
+%inlineT =    type {{ptr, ptr}, ptr, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64}
+
+define noundef i64 @non_inlining_call(%noinlineT noundef %struc) {
+entry:
+  %ptra0 = extractvalue %noinlineT %struc, 0, 0
+  %ptrb0 = extractvalue %noinlineT %struc, 0, 1
+  %ptrc0 = extractvalue %noinlineT %struc, 1
+  %a0 = load i64, ptr %ptra0, align 8
+  %b0 = load i64, ptr %ptrb0, align 8
+  %c0 = load i64, ptr %ptrc0, align 8
+  %d0 = extractvalue %noinlineT %struc, 2
+  %e0 = extractvalue %noinlineT %struc, 3
+  %f0 = extractvalue %noinlineT %struc, 4
+  %g0 = extractvalue %noinlineT %struc, 5
+  %h0 = extractvalue %noinlineT %struc, 6
+  %i0 = extractvalue %noinlineT %struc, 7
+  %j0 = extractvalue %noinlineT %struc, 8
+  %k0 = extractvalue %noinlineT %struc, 9
+  %l0 = extractvalue %noinlineT %struc, 10
+  %m0 = extractvalue %noinlineT %struc, 11
+  %n0 = extractvalue %noinlineT %struc, 12
+  %o0 = extractvalue %noinlineT %struc, 13
+  %p0 = extractvalue %noinlineT %struc, 14
+  %xor = xor i64 %a0, %b0
+  %xor1 = xor i64 %xor, %c0
+  %xor2 = xor i64 %xor1, %d0
+  %xor3 = xor i64 %xor2, %e0
+  %xor4 = xor i64 %xor3, %f0
+  %xor5 = xor i64 %xor4, %g0
+  %xor6 = xor i64 %xor5, %h0
+  %xor7 = xor i64 %xor6, %i0
+  %xor8 = xor i64 %xor7, %j0
+  %xor9 = xor i64 %xor8, %k0
+  %xor10 = xor i64 %xor9, %l0
+  %xor11 = xor i64 %xor10, %m0
+  %xor12 = xor i64 %xor11, %n0
+  %xor13 = xor i64 %xor12, %o0
+  %xor14 = xor i64 %xor13, %p0
+  ret i64 %xor14
+}
+
+define noundef i64 @inlining_call(%inlineT noundef %struc) {
+entry:
+  %ptra0 = extractvalue %inlineT %struc, 0, 0
+  %ptrb0 = extractvalue %inlineT %struc, 0, 1
+  %ptrc0 = extractvalue %inlineT %struc, 1
+  %a0 = load i64, ptr %ptra0, align 8
+  %b0 = load i64, ptr %ptrb0, align 8
+  %c0 = load i64, ptr %ptrc0, align 8
+  %d0 = extractvalue %inlineT %struc, 2
+  %e0 = extractvalue %inlineT %struc, 3
+  %f0 = extractvalue %inlineT %struc, 4
+  %g0 = extractvalue %inlineT %struc, 5
+  %h0 = extractvalue %inlineT %struc, 6
+  %i0 = extractvalue %inlineT %struc, 7
+  %j0 = extractvalue %inlineT %struc, 8
+  %k0 = extractvalue %inlineT %struc, 9
+  %l0 = extractvalue %inlineT %struc, 10
+  %m0 = extractvalue %inlineT %struc, 11
+  %n0 = extractvalue %inlineT %struc, 12
+  %o0 = extractvalue %inlineT %struc, 13
+  %p0 = extractvalue %inlineT %struc, 14
+  %q0 = extractvalue %inlineT %struc, 15
+  %xor = xor i64 %a0, %b0
+  %xor1 = xor i64 %xor, %c0
+  %xor2 = xor i64 %xor1, %d0
+  %xor3 = xor i64 %xor2, %e0
+  %xor4 = xor i64 %xor3, %f0
+  %xor5 = xor i64 %xor4, %g0
+  %xor6 = xor i64 %xor5, %h0
+  %xor7 = xor i64 %xor6, %i0
+  %xor8 = xor i64 %xor7, %j0
+  %xor9 = xor i64 %xor8, %k0
+  %xor10 = xor i64 %xor9, %l0
+  %xor11 = xor i64 %xor10, %m0
+  %xor12 = xor i64 %xor11, %n0
+  %xor13 = xor i64 %xor12, %o0
+  %xor14 = xor i64 %xor13, %p0
+  %xor15 = xor i64 %xor14, %q0
+  ret i64 %xor15
+}
+
+; Calling each (non-)inlining function twice to make sure they won't get the sole call inlining cost bonus. 
+define i64 @Caller(ptr noundef %in) {
+entry:
+  %ptra0 = getelementptr inbounds i64, ptr %in, i64 0
+  %ptrb0 = getelementptr inbounds i64, ptr %in, i64 1
+  %ptrc0 = getelementptr inbounds i64, ptr %in, i64 2
+  %ptrd0 = getelementptr inbounds i64, ptr %in, i64 3
+  %ptre0 = getelementptr inbounds i64, ptr %in, i64 4
+  %ptrf0 = getelementptr inbounds i64, ptr %in, i64 5
+  %ptrg0 = getelementptr inbounds i64, ptr %in, i64 6
+  %ptrh0 = getelementptr inbounds i64, ptr %in, i64 7
+  %ptri0 = getelementptr inbounds i64, ptr %in, i64 8
+  %ptrj0 = getelementptr inbounds i64, ptr %in, i64 9
+  %ptrk0 = getelementptr inbounds i64, ptr %in, i64 10
+  %ptrl0 = getelementptr inbounds i64, ptr %in, i64 11
+  %ptrm0 = getelementptr inbounds i64, ptr %in, i64 12
+  %ptrn0 = getelementptr inbounds i64, ptr %in, i64 13
+  %ptro0 = getelementptr inbounds i64, ptr %in, i64 14
+  %ptrp0 = getelementptr inbounds i64, ptr %in, i64 15
+  %ptrq0 = getelementptr inbounds i64, ptr %in, i64 16
+  %a0 = load i64, ptr %ptra0, align 8
+  %b0 = load i64, ptr %ptrb0, align 8
+  %c0 = load i64, ptr %ptrc0, align 8
+  %d0 = load i64, ptr %ptrd0, align 8
+  %e0 = load i64, ptr %ptre0, align 8
+  %f0 = load i64, ptr %ptrf0, align 8
+  %g0 = load i64, ptr %ptrg0, align 8
+  %h0 = load i64, ptr %ptrh0, align 8
+  %i0 = load i64, ptr %ptri0, align 8
+  %j0 = load i64, ptr %ptrj0, align 8
+  %k0 = load i64, ptr %ptrk0, align 8
+  %l0 = load i64, ptr %ptrl0, align 8
+  %m0 = load i64, ptr %ptrm0, align 8
+  %n0 = load i64, ptr %ptrn0, align 8
+  %o0 = load i64, ptr %ptro0, align 8
+  %p0 = load i64, ptr %ptrp0, align 8
+  %q0 = load i64, ptr %ptrq0, align 8
+  %noinlinestruc1 = insertvalue %noinlineT undef, ptr %ptra0, 0, 0
+  %noinlinestruc2 = insertvalue %noinlineT %noinlinestruc1, ptr %ptrb0, 0, 1
+  %noinlinestruc3 = insertvalue %noinlineT %noinlinestruc2, ptr %ptrc0, 1
+  %noinlinestruc4 = insertvalue %noinlineT %noinlinestruc3, i64 %d0, 2
+  %noinlinestruc5 = insertvalue %noinlineT %noinlinestruc4, i64 %e0, 3
+  %noinlinestruc6 = insertvalue %noinlineT %noinlinestruc5, i64 %f0, 4
+  %noinlinestruc7 = insertvalue %noinlineT %noinlinestruc6, i64 %g0, 5
+  %noinlinestruc8 = insertvalue %noinlineT %noinlinestruc7, i64 %h0, 6
+  %noinlinestruc9 = insertvalue %noinlineT %noinlinestruc8, i64 %i0, 7
+  %noinlinestruc10 = insertvalue %noinlineT %noinlinestruc9, i64 %j0, 8
+  %noinlinestruc11 = insertvalue %noinlineT %noinlinestruc10, i64 %k0, 9
+  %noinlinestruc12 = insertvalue %noinlineT %noinlinestruc11, i64 %l0, 10
+  %noinlinestruc13 = insertvalue %noinlineT %noinlinestruc12, i64 %m0, 11
+  %noinlinestruc14 = insertvalue %noinlineT %noinlinestruc13, i64 %n0, 12
+  %noinlinestruc15 = insertvalue %noinlineT %noinlinestruc14, i64 %o0, 13
+  %noinlinestruc16 = insertvalue %noinlineT %noinlinestruc15, i64 %p0, 14
+  %inlinestruc1 = insertvalue %inlineT undef, ptr %ptra0, 0, 0
+  %inlinestruc2 = insertvalue %inlineT %inlinestruc1, ptr %ptrb0, 0, 1
+  %inlinestruc3 = insertvalue %inlineT %inlinestruc2, ptr %ptrc0, 1
+  %inlinestruc4 = insertvalue %inlineT %inlinestruc3, i64 %d0, 2
+  %inlinestruc5 = insertvalue %inlineT %inlinestruc4, i64 %e0, 3
+  %inlinestruc6 = insertvalue %inlineT %inlinestruc5, i64 %f0, 4
+  %inlinestruc7 = insertvalue %inlineT %inlinestruc6, i64 %g0, 5
+  %inlinestruc8 = insertvalue %inlineT %inlinestruc7, i64 %h0, 6
+  %inlinestruc9 = insertvalue %inlineT %inlinestruc8, i64 %i0, 7
+  %inlinestruc10 = insertvalue %inlineT %inlinestruc9, i64 %j0, 8
+  %inlinestruc11 = insertvalue %inlineT %inlinestruc10, i64 %k0, 9
+  %inlinestruc12 = insertvalue %inlineT %inlinestruc11, i64 %l0, 10
+  %inlinestruc13 = insertvalue %inlineT %inlinestruc12, i64 %m0, 11
+  %inlinestruc14 = insertvalue %inlineT %inlinestruc13, i64 %n0, 12
+  %inlinestruc15 = insertvalue %inlineT %inlinestruc14, i64 %o0, 13
+  %inlinestruc16 = insertvalue %inlineT %inlinestruc15, i64 %p0, 14
+  %inlinestruc17 = insertvalue %inlineT %inlinestruc16, i64 %q0, 15
+  %noinlinecall1 = call noundef i64 @non_inlining_call(%noinlineT noundef %noinlinestruc16)
+  %add = add i64 0, %noinlinecall1
+  %noinlinecall2 = call noundef i64 @non_inlining_call(%noinlineT noundef %noinlinestruc16)
+  %add2 = add i64 %add, %noinlinecall2
+  %inlinecall1 = call noundef i64 @inlining_call(%inlineT noundef %inlinestruc17)
+  %add3 = add i64 %add2, %inlinecall1
+  %inlinecall2 = call noundef i64 @inlining_call(%inlineT noundef %inlinestruc17)
+  %add4 = add i64 %add3, %inlinecall2
+  ret i64 %add4
+}

llvm/test/Transforms/Inline/AMDGPU/amdgpu-inline-stack-vector-ptr-argument.ll

+; REQUIRES: asserts
+; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=inline -inline-cost-full=true -inline-threshold=0 -inline-instr-cost=5 -inline-call-penalty=0 -debug-only=inline < %s 2>&1 | FileCheck %s
+
+; CHECK:      NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %noinlinecall1 = call noundef i64 @non_inlining_call
+; CHECK:      NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %noinlinecall2 = call noundef i64 @non_inlining_call
+; CHECK-NOT:  NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %inlinecall1 = call noundef i64 @inlining_call
+; CHECK-NOT:  NOT Inlining (cost={{[0-9]+}}, threshold={{[0-9]+}}), Call:   %inlinecall2 = call noundef i64 @inlining_call
+
+define noundef i64 @non_inlining_call(<2 x ptr> noundef %ptrvec, ptr noundef %ptrc0, ptr noundef %ptrd0, ptr noundef %ptre0, ptr noundef %ptrf0, ptr noundef %ptrg0, ptr noundef %ptrh0, ptr noundef %ptri0, ptr noundef %ptrj0, ptr noundef %ptrk0, ptr noundef %ptrl0, ptr noundef %ptrm0, ptr noundef %ptrn0, ptr noundef %ptro0, ptr noundef %ptrp0) {
+entry:
+  %ptra0 = extractelement <2 x ptr> %ptrvec, i32 0
+  %ptrb0 = extractelement <2 x ptr> %ptrvec, i32 1
+  %a0 = load i64, ptr %ptra0, align 8
+  %b0 = load i64, ptr %ptrb0, align 8
+  %c0 = load i64, ptr %ptrc0, align 8
+  %d0 = load i64, ptr %ptrd0, align 8
+  %e0 = load i64, ptr %ptre0, align 8
+  %f0 = load i64, ptr %ptrf0, align 8
+  %g0 = load i64, ptr %ptrg0, align 8
+  %h0 = load i64, ptr %ptrh0, align 8
+  %i0 = load i64, ptr %ptri0, align 8
+  %j0 = load i64, ptr %ptrj0, align 8
+  %k0 = load i64, ptr %ptrk0, align 8
+  %l0 = load i64, ptr %ptrl0, align 8
+  %m0 = load i64, ptr %ptrm0, align 8
+  %n0 = load i64, ptr %ptrn0, align 8
+  %o0 = load i64, ptr %ptro0, align 8
+  %p0 = load i64, ptr %ptrp0, align 8
+  %xor = xor i64 %a0, %b0
+  %xor1 = xor i64 %xor, %c0
+  %xor2 = xor i64 %xor1, %d0
+  %xor3 = xor i64 %xor2, %e0
+  %xor4 = xor i64 %xor3, %f0
+  %xor5 = xor i64 %xor4, %g0
+  %xor6 = xor i64 %xor5, %h0
+  %xor7 = xor i64 %xor6, %i0
+  %xor8 = xor i64 %xor7, %j0
+  %xor9 = xor i64 %xor8, %k0
+  %xor10 = xor i64 %xor9, %l0
+  %xor11 = xor i64 %xor10, %m0
+  %xor12 = xor i64 %xor11, %n0
+  %xor13 = xor i64 %xor12, %o0
+  %xor14 = xor i64 %xor13, %p0
+  ret i64 %xor14
+}
+
+define noundef i64 @inlining_call(<2 x ptr> noundef %ptrvec, ptr noundef %ptrc0, ptr noundef %ptrd0, ptr noundef %ptre0, ptr noundef %ptrf0, ptr noundef %ptrg0, ptr noundef %ptrh0, ptr noundef %ptri0, ptr noundef %ptrj0, ptr noundef %ptrk0, ptr noundef %ptrl0, ptr noundef %ptrm0, ptr noundef %ptrn0, ptr noundef %ptro0, ptr noundef %ptrp0, ptr noundef %ptrq0) {
+entry:
+  %ptra0 = extractelement <2 x ptr> %ptrvec, i32 0
+  %ptrb0 = extractelement <2 x ptr> %ptrvec, i32 1
+  %a0 = load i64, ptr %ptra0, align 8
+  %b0 = load i64, ptr %ptrb0, align 8
+  %c0 = load i64, ptr %ptrc0, align 8
+  %d0 = load i64, ptr %ptrd0, align 8
+  %e0 = load i64, ptr %ptre0, align 8
+  %f0 = load i64, ptr %ptrf0, align 8
+  %g0 = load i64, ptr %ptrg0, align 8
+  %h0 = load i64, ptr %ptrh0, align 8
+  %i0 = load i64, ptr %ptri0, align 8
+  %j0 = load i64, ptr %ptrj0, align 8
+  %k0 = load i64, ptr %ptrk0, align 8
+  %l0 = load i64, ptr %ptrl0, align 8
+  %m0 = load i64, ptr %ptrm0, align 8
+  %n0 = load i64, ptr %ptrn0, align 8
+  %o0 = load i64, ptr %ptro0, align 8
+  %p0 = load i64, ptr %ptrp0, align 8
+  %q0 = load i64, ptr %ptrq0, align 8
+  %xor = xor i64 %a0, %b0
+  %xor1 = xor i64 %xor, %c0
+  %xor2 = xor i64 %xor1, %d0
+  %xor3 = xor i64 %xor2, %e0
+  %xor4 = xor i64 %xor3, %f0
+  %xor5 = xor i64 %xor4, %g0
+  %xor6 = xor i64 %xor5, %h0
+  %xor7 = xor i64 %xor6, %i0
+  %xor8 = xor i64 %xor7, %j0
+  %xor9 = xor i64 %xor8, %k0
+  %xor10 = xor i64 %xor9, %l0
+  %xor11 = xor i64 %xor10, %m0
+  %xor12 = xor i64 %xor11, %n0
+  %xor13 = xor i64 %xor12, %o0
+  %xor14 = xor i64 %xor13, %p0
+  %xor15 = xor i64 %xor14, %q0
+  ret i64 %xor15
+}
+
+; Calling each (non-)inlining function twice to make sure they won't get the sole call inlining cost bonus. 
+define i64 @Caller(ptr noundef %in) {
+entry:
+  %a0 = getelementptr inbounds i64, ptr %in, i64 0
+  %b0 = getelementptr inbounds i64, ptr %in, i64 1
+  %vec0 = insertelement <2 x ptr> undef, ptr %a0, i32 0
+  %vec1 = insertelement <2 x ptr> %vec0, ptr %b0, i32 0
+  %c0 = getelementptr inbounds i64, ptr %in, i64 2
+  %d0 = getelementptr inbounds i64, ptr %in, i64 3
+  %e0 = getelementptr inbounds i64, ptr %in, i64 4
+  %f0 = getelementptr inbounds i64, ptr %in, i64 5
+  %g0 = getelementptr inbounds i64, ptr %in, i64 6
+  %h0 = getelementptr inbounds i64, ptr %in, i64 7
+  %i0 = getelementptr inbounds i64, ptr %in, i64 8
+  %j0 = getelementptr inbounds i64, ptr %in, i64 9
+  %k0 = getelementptr inbounds i64, ptr %in, i64 10
+  %l0 = getelementptr inbounds i64, ptr %in, i64 11
+  %m0 = getelementptr inbounds i64, ptr %in, i64 12
+  %n0 = getelementptr inbounds i64, ptr %in, i64 13
+  %o0 = getelementptr inbounds i64, ptr %in, i64 14
+  %p0 = getelementptr inbounds i64, ptr %in, i64 15
+  %q0 = getelementptr inbounds i64, ptr %in, i64 16
+  %noinlinecall1 = call noundef i64 @non_inlining_call(<2 x ptr> noundef %vec1, ptr noundef %c0, ptr noundef %d0, ptr noundef %e0, ptr noundef %f0, ptr noundef %g0, ptr noundef %h0, ptr noundef %i0, ptr noundef %j0, ptr noundef %k0, ptr noundef %l0, ptr noundef %m0, ptr noundef %n0, ptr noundef %o0, ptr noundef %p0)
+  %add = add i64 0, %noinlinecall1
+  %noinlinecall2 = call noundef i64 @non_inlining_call(<2 x ptr> noundef %vec1, ptr noundef %c0, ptr noundef %d0, ptr noundef %e0, ptr noundef %f0, ptr noundef %g0, ptr noundef %h0, ptr noundef %i0, ptr noundef %j0, ptr noundef %k0, ptr noundef %l0, ptr noundef %m0, ptr noundef %n0, ptr noundef %o0, ptr noundef %p0)
+  %add2 = add i64 %add, %noinlinecall2
+  %inlinecall1 = call noundef i64 @inlining_call(<2 x ptr> noundef %vec1, ptr noundef %c0, ptr noundef %d0, ptr noundef %e0, ptr noundef %f0, ptr noundef %g0, ptr noundef %h0, ptr noundef %i0, ptr noundef %j0, ptr noundef %k0, ptr noundef %l0, ptr noundef %m0, ptr noundef %n0, ptr noundef %o0, ptr noundef %p0, ptr noundef %q0)
+  %add3 = add i64 %add2, %inlinecall1
+  %inlinecall2 = call noundef i64 @inlining_call(<2 x ptr> noundef %vec1, ptr noundef %c0, ptr noundef %d0, ptr noundef %e0, ptr noundef %f0, ptr noundef %g0, ptr noundef %h0, ptr noundef %i0, ptr noundef %j0, ptr noundef %k0, ptr noundef %l0, ptr noundef %m0, ptr noundef %n0, ptr noundef %o0, ptr noundef %p0, ptr noundef %q0)
+  %add4 = add i64 %add3, %inlinecall2
+  ret i64 %add4
+}