third_party/llvm-7.0/llvm/test/CodeGen/AMDGPU/kernarg-stack-alignment.ll

; RUN: llc -O0 -march=amdgcn -verify-machineinstrs < %s | FileCheck %s

; Test that the alignment of kernel arguments does not impact the
; alignment of the stack

; CHECK-LABEL: {{^}}no_args:
; CHECK: ScratchSize: 5{{$}}
define amdgpu_kernel void @no_args() {
  %alloca = alloca i8, addrspace(5)
  store volatile i8 0, i8 addrspace(5)* %alloca
  ret void
}

; CHECK-LABEL: {{^}}force_align32:
; CHECK: ScratchSize: 5{{$}}
define amdgpu_kernel void @force_align32(<8 x i32>) {
  %alloca = alloca i8, addrspace(5)
  store volatile i8 0, i8 addrspace(5)* %alloca
  ret void
}

; CHECK-LABEL: {{^}}force_align64:
; CHECK: ScratchSize: 5{{$}}
define amdgpu_kernel void @force_align64(<16 x i32>) {
  %alloca = alloca i8, addrspace(5)
  store volatile i8 0, i8 addrspace(5)* %alloca
  ret void
}

; CHECK-LABEL: {{^}}force_align128:
; CHECK: ScratchSize: 5{{$}}
define amdgpu_kernel void @force_align128(<32 x i32>) {
  %alloca = alloca i8, addrspace(5)
  store volatile i8 0, i8 addrspace(5)* %alloca
  ret void
}

; CHECK-LABEL: {{^}}force_align256:
; CHECK: ScratchSize: 5{{$}}
define amdgpu_kernel void @force_align256(<64 x i32>) {
  %alloca = alloca i8, addrspace(5)
  store volatile i8 0, i8 addrspace(5)* %alloca
  ret void
}