llvm/test/Transforms/InstCombine/inttoptr-nullptr.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt -S -passes=instcombine < %s | FileCheck %s

target datalayout = "e-po3:16:16-pz4:16:16"

define i1 @inttoptr_cmp_null_nonzero(i16 %x) {
; CHECK-LABEL: define i1 @inttoptr_cmp_null_nonzero(
; CHECK-SAME: i16 [[X:%.*]]) {
; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i16 [[X]], -1
; CHECK-NEXT:    ret i1 [[CMP]]
;
  %p = inttoptr i16 %x to ptr addrspace(3)
  %cmp = icmp eq ptr addrspace(3) %p, null
  ret i1 %cmp
}

define i1 @inttoptr_cmp_null_zero(i16 %x) {
; CHECK-LABEL: define i1 @inttoptr_cmp_null_zero(
; CHECK-SAME: i16 [[X:%.*]]) {
; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i16 [[X]], 0
; CHECK-NEXT:    ret i1 [[CMP]]
;
  %p = inttoptr i16 %x to ptr addrspace(4)
  %cmp = icmp eq ptr addrspace(4) %p, null
  ret i1 %cmp
}

define <2 x i1> @inttoptr_cmp_null_nonzero_vector(<2 x i16> %x) {
; CHECK-LABEL: define <2 x i1> @inttoptr_cmp_null_nonzero_vector(
; CHECK-SAME: <2 x i16> [[X:%.*]]) {
; CHECK-NEXT:    [[CMP:%.*]] = icmp eq <2 x i16> [[X]], splat (i16 -1)
; CHECK-NEXT:    ret <2 x i1> [[CMP]]
;
  %p = inttoptr <2 x i16> %x to <2 x ptr addrspace(3)>
  %cmp = icmp eq <2 x ptr addrspace(3)> %p, splat (ptr addrspace(3) null)
  ret <2 x i1> %cmp
}

define <2 x i1> @inttoptr_cmp_null_zero_vector(<2 x i16> %x) {
; CHECK-LABEL: define <2 x i1> @inttoptr_cmp_null_zero_vector(
; CHECK-SAME: <2 x i16> [[X:%.*]]) {
; CHECK-NEXT:    [[CMP:%.*]] = icmp eq <2 x i16> [[X]], zeroinitializer
; CHECK-NEXT:    ret <2 x i1> [[CMP]]
;
  %p = inttoptr <2 x i16> %x to <2 x ptr addrspace(4)>
  %cmp = icmp eq <2 x ptr addrspace(4)> %p, splat (ptr addrspace(4) null)
  ret <2 x i1> %cmp
}