; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv-unknown-vulkan1.3-pixel %s -o - | FileCheck %s
; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-vulkan1.3-pixel %s -o - -filetype=obj | spirv-val --target-env vulkan1.3 %}

; Check that interface variables (Input, Output, PushConstant) do not get
; Import linkage even when declared as external hidden.

; CHECK-NOT: OpCapability Linkage
; CHECK-NOT: LinkageAttributes

%struct.PC = type <{ float }>

@input_var = external hidden addrspace(7) global <4 x float>, !spirv.Decorations !0
@output_var = external hidden addrspace(8) global <4 x float>, !spirv.Decorations !2
@push_const = external hidden addrspace(13) externally_initialized global %struct.PC, align 1

; CHECK-DAG: %[[#INPUT_TYPE:]] = OpTypePointer Input %[[#FLOAT4:]]
; CHECK-DAG: %[[#OUTPUT_TYPE:]] = OpTypePointer Output %[[#FLOAT4]]
; CHECK-DAG: %[[#INPUT_VAR:]] = OpVariable %[[#INPUT_TYPE]] Input
; CHECK-DAG: %[[#OUTPUT_VAR:]] = OpVariable %[[#OUTPUT_TYPE]] Output
; CHECK-DAG: %[[#PC_VAR:]] = OpVariable %[[#]] PushConstant

define void @main() #0 {
entry:
  %val = load <4 x float>, ptr addrspace(7) @input_var
  %pc = load float, ptr addrspace(13) @push_const
  %ins = insertelement <4 x float> %val, float %pc, i32 0
  store <4 x float> %ins, ptr addrspace(8) @output_var
  ret void
}

attributes #0 = { "hlsl.shader"="pixel" }

!0 = !{!1}
!1 = !{i32 30, i32 0}   ; Location 0
!2 = !{!3}
!3 = !{i32 30, i32 1}   ; Location 1