lifetime.ll

; RUN: llvm-as %s -o %t.bc
; RUN: llvm-spirv %t.bc -spirv-mem2reg=0 -o %t.spv
; RUN: llvm-spirv %t.spv -to-text -o %t.spt
; RUN: FileCheck < %t.spt %s --check-prefix=CHECK-SPIRV
; RUN: llvm-spirv -r %t.spv -o %t.spv.bc
; RUN: llvm-dis < %t.spv.bc | FileCheck %s --check-prefix=CHECK-LLVM

; CHECK-SPIRV-NOT: Bitcast
; CHECK-SPIRV: 3 LifetimeStart [[tmp:[0-9]+]] 0
; CHECK-SPIRV: 3 LifetimeStop [[tmp]] 0

; CHECK-LLVM: %[[tmp1:[0-9]+]] = bitcast i32* %{{[0-9]+}} to i8*
; CHECK-LLVM: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %[[tmp1]])
; CHECK-LLVM: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %[[tmp1]])
; CHECK-LLVM: declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
; CHECK-LLVM: declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)

; ModuleID = 'main'
target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024"
target triple = "spir64-unknown-unknown"

; Function Attrs: nounwind
define spir_kernel void @lifetime_simple(i32 addrspace(1)* nocapture %res, i32 addrspace(1)* nocapture %lhs, i32 addrspace(1)* nocapture %rhs) #0 {
  %1 = alloca i32
  %2 = call spir_func i64 @_Z13get_global_idj(i32 0) #1
  %3 = shl i64 %2, 32
  %4 = ashr exact i64 %3, 32
  %5 = getelementptr inbounds i32, i32 addrspace(1)* %lhs, i64 %4
  %6 = load i32, i32 addrspace(1)* %5, align 4
  %7 = getelementptr inbounds i32, i32 addrspace(1)* %rhs, i64 %4
  %8 = load i32, i32 addrspace(1)* %7, align 4
  %9 = sub i32 %6, %8
  %10 = bitcast i32* %1 to i8*
  call void @llvm.lifetime.start.p0i8(i64 -1, i8* %10)
  store i32 %9, i32* %1
  %11 = load i32, i32* %1
  call void @llvm.lifetime.end.p0i8(i64 -1, i8* %10)
  %12 = getelementptr inbounds i32, i32 addrspace(1)* %res, i64 %4
  store i32 %11, i32 addrspace(1)* %12, align 4
  ret void
}

; Function Attrs: nounwind
declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #0

; Function Attrs: nounwind
declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #0

; Function Attrs: nounwind readnone
declare spir_func i64 @_Z13get_global_idj(i32) #1

attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }

!opencl.kernels = !{!0}
!opencl.enable.FP_CONTRACT = !{}
!spirv.Source = !{!6}
!opencl.spir.version = !{!7}
!opencl.ocl.version = !{!7}
!opencl.used.extensions = !{!8}
!opencl.used.optional.core.features = !{!8}
!spirv.Generator = !{!9}

!0 = !{void (i32 addrspace(1)*, i32 addrspace(1)*, i32 addrspace(1)*)* @lifetime_simple, !1, !2, !3, !4, !5}
!1 = !{!"kernel_arg_addr_space", i32 1, i32 1, i32 1}
!2 = !{!"kernel_arg_access_qual", !"none", !"none", !"none"}
!3 = !{!"kernel_arg_type", !"int*", !"int*", !"int*"}
!4 = !{!"kernel_arg_type_qual", !"", !"", !""}
!5 = !{!"kernel_arg_base_type", !"int*", !"int*", !"int*"}
!6 = !{i32 3, i32 102000}
!7 = !{i32 1, i32 2}
!8 = !{}
!9 = !{i16 7, i16 0}