File: simplify_cond_br.sil

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// RUN: %target-sil-opt -enable-sil-verify-all %s -onone-simplification -simplify-instruction=cond_br | %FileCheck %s


// REQUIRES: swift_in_compiler

import Swift
import Builtin

// CHECK-LABEL: sil @constant_cond_br_true
// CHECK:       bb0(%0 : $Int, %1 : $Int):
// CHECK-NEXT:    br bb1(%0 : $Int)
// CHECK:       } // end sil function 'constant_cond_br_true'
sil @constant_cond_br_true : $@convention(thin) (Int, Int) -> Int {
bb0(%0 : $Int, %1 : $Int):
  %2 = integer_literal $Builtin.Int1, 1
  cond_br %2, bb1(%0 : $Int), bb2(%1 : $Int)

bb1(%4 : $Int):
  br bb3(%4 : $Int)

bb2(%6 : $Int):
  br bb3(%6 : $Int)

bb3(%8 : $Int):
  return %8 : $Int
}

// CHECK-LABEL: sil @constant_cond_br_false
// CHECK:       bb0(%0 : $Int, %1 : $Int):
// CHECK-NEXT:    br bb1(%1 : $Int)
// CHECK:       } // end sil function 'constant_cond_br_false'
sil @constant_cond_br_false : $@convention(thin) (Int, Int) -> Int {
bb0(%0 : $Int, %1 : $Int):
  %2 = integer_literal $Builtin.Int1, 0
  cond_br %2, bb1(%0 : $Int), bb2(%1 : $Int)

bb1(%4 : $Int):
  br bb3(%4 : $Int)

bb2(%6 : $Int):
  br bb3(%6 : $Int)

bb3(%8 : $Int):
  return %8 : $Int
}

// CHECK-LABEL: sil @non_constant_cond_br
// CHECK:       bb0(%0 : $Int, %1 : $Int, %2 : $Builtin.Int1):
// CHECK-NEXT:    cond_br %2
// CHECK:       } // end sil function 'non_constant_cond_br'
sil @non_constant_cond_br : $@convention(thin) (Int, Int, Builtin.Int1) -> Int {
bb0(%0 : $Int, %1 : $Int, %2 : $Builtin.Int1):
  cond_br %2, bb1(%0 : $Int), bb2(%1 : $Int)

bb1(%4 : $Int):
  br bb3(%4 : $Int)

bb2(%6 : $Int):
  br bb3(%6 : $Int)

bb3(%8 : $Int):
  return %8 : $Int
}