test/Transforms/InferAddressSpaces/AMDGPU/phi-poison.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -S -passes=infer-address-spaces %s | FileCheck %s

define void @phi_poison(ptr addrspace(1) %arg, <2 x ptr addrspace(1)> %arg1) {
; CHECK-LABEL: @phi_poison(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[TMP0:%.*]] = call i1 @is_leader()
; CHECK-NEXT:    br i1 [[TMP0]], label [[LEADER:%.*]], label [[MERGE:%.*]]
; CHECK:       leader:
; CHECK-NEXT:    br label [[MERGE]]
; CHECK:       merge:
; CHECK-NEXT:    [[I:%.*]] = phi ptr addrspace(1) [ [[ARG:%.*]], [[LEADER]] ], [ poison, [[ENTRY:%.*]] ]
; CHECK-NEXT:    [[I2:%.*]] = phi <2 x ptr addrspace(1)> [ [[ARG1:%.*]], [[LEADER]] ], [ poison, [[ENTRY]] ]
; CHECK-NEXT:    [[J:%.*]] = icmp eq ptr addrspace(1) [[I]], addrspacecast (ptr null to ptr addrspace(1))
; CHECK-NEXT:    [[J1:%.*]] = icmp eq <2 x ptr addrspace(1)> [[I2]], <ptr addrspace(1) addrspacecast (ptr null to ptr addrspace(1)), ptr addrspace(1) addrspacecast (ptr null to ptr addrspace(1))>
; CHECK-NEXT:    ret void
;
entry:
  %is = call i1 @is_leader()
  br i1 %is, label %leader, label %merge

leader:
  %cast = addrspacecast ptr addrspace(1) %arg to ptr
  %cast1 = addrspacecast <2 x ptr addrspace(1)> %arg1 to <2 x ptr>
  br label %merge

merge:
  %i = phi ptr [%cast, %leader], [poison, %entry]
  %i1 = phi <2 x ptr> [%cast1, %leader], [poison, %entry]
  %j = icmp eq ptr %i, null
  %j1 = icmp eq <2 x ptr> %i1, zeroinitializer
  ret void
}

declare i1 @is_leader()