File: phi-expansion.sil

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// RUN: %target-sil-opt %s -phi-expansion | %FileCheck %s

sil_stage canonical

import Swift

struct Mystruct {
  var i: Int
  var j: Int
}

// CHECK-LABEL: sil @test_simple
// CHECK:   br bb3(%{{[0-9]*}} : $Int)
// CHECK: bb3(%[[PHI:[0-9]*]] : $Int):
// CHECK:   debug_value %[[PHI]] : $Int, let, name "pos", type $Mystruct, expr op_fragment:#Mystruct.i
// CHECK: } // end sil function 'test_simple'

sil @test_simple : $@convention(thin) (Mystruct, Mystruct) -> Int {
bb0(%0 : $Mystruct, %1 : $Mystruct):
  cond_br undef, bb1, bb2

bb1:
  br bb3(%0 : $Mystruct)

bb2:
  br bb3(%1 : $Mystruct)

bb3(%5 : $Mystruct):
  debug_value %5 : $Mystruct, let, name "pos"
  %6 = struct_extract %5 : $Mystruct, #Mystruct.i
  return %6 : $Int
}