test/CodeGen/SPIRV/function/alloca-load-store.ll

; RUN: llc -O0 %s -o - | FileCheck %s

target triple = "spirv32-unknown-unknown"

; CHECK-DAG: OpName [[BAR:%.+]] "bar"
; CHECK-DAG: OpName [[FOO:%.+]] "foo"
; CHECK-DAG: OpName [[GOO:%.+]] "goo"

; CHECK: [[INT:%.+]] = OpTypeInt 32
; CHECK-DAG: [[STACK_PTR:%.+]] = OpTypePointer Function [[INT]]
; CHECK-DAG: [[GLOBAL_PTR:%.+]] = OpTypePointer CrossWorkgroup [[INT]]
; CHECK-DAG: [[FN1:%.+]] = OpTypeFunction [[INT]] [[INT]]
; CHECK-DAG: [[FN2:%.+]] = OpTypeFunction [[INT]] [[INT]] [[GLOBAL_PTR]]

define i32 @bar(i32 %a) {
  %p = alloca i32
  store i32 %a, i32* %p
  %b = load i32, i32* %p
  ret i32 %b
}

; CHECK: [[BAR]] = OpFunction [[INT]] None [[FN1]]
; CHECK: [[A:%.+]] = OpFunctionParameter [[INT]]
; CHECK: OpLabel
; CHECK: [[P:%.+]] = OpVariable [[STACK_PTR]] Function
; CHECK: OpStore [[P]] [[A]]
; CHECK: [[B:%.+]] = OpLoad [[INT]] [[P]]
; CHECK: OpReturnValue [[B]]
; CHECK: OpFunctionEnd


define i32 @foo(i32 %a) {
  %p = alloca i32
  store volatile i32 %a, i32* %p
  %b = load volatile i32, i32* %p
  ret i32 %b
}

; CHECK: [[FOO]] = OpFunction [[INT]] None [[FN1]]
; CHECK: [[A:%.+]] = OpFunctionParameter [[INT]]
; CHECK: OpLabel
; CHECK: [[P:%.+]] = OpVariable [[STACK_PTR]] Function
; CHECK: OpStore [[P]] [[A]] Volatile
; CHECK: [[B:%.+]] = OpLoad [[INT]] [[P]] Volatile
; CHECK: OpReturnValue [[B]]
; CHECK: OpFunctionEnd


; Test load and store in global address space.
define i32 @goo(i32 %a, i32 addrspace(1)* %p) {
  store i32 %a, i32 addrspace(1)* %p
  %b = load i32, i32 addrspace(1)* %p
  ret i32 %b
}

; CHECK: [[GOO]] = OpFunction [[INT]] None [[FN2]]
; CHECK: [[A:%.+]] = OpFunctionParameter [[INT]]
; CHECK: [[P:%.+]] = OpFunctionParameter [[GLOBAL_PTR]]
; CHECK: OpLabel
; CHECK: OpStore [[P]] [[A]]
; CHECK: [[B:%.+]] = OpLoad [[INT]] [[P]]
; CHECK: OpReturnValue [[B]]
; CHECK: OpFunctionEnd