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// RUN: %target-sil-opt -enable-sil-verify-all %s -jumpthread-simplify-cfg | %FileCheck %s
// Two select_enum instructions must not be considered as the same "condition",
// even if they have the same enum operand.
// This test checks that SimplifyCFG does not remove a dominated terminator with
// such a condition.
sil_stage canonical
import Builtin
import Swift
enum E {
case A
case B
case C
}
class Base { }
class Derived1 : Base { }
class Derived2 : Base { }
// CHECK-LABEL: sil @test_cond_br
// CHECK: select_enum
// CHECK: cond_br
// CHECK: integer_literal $Builtin.Int64, 1
// CHECK: select_enum
// CHECK: cond_br
// CHECK: integer_literal $Builtin.Int64, 2
// CHECK: integer_literal $Builtin.Int64, 3
// CHECK: return
sil @test_cond_br : $@convention(thin) (E, @owned Base, @owned Base, @owned Base, @owned Base) -> Builtin.Int64 {
bb0(%0 : $E, %1 : $Base, %2 : $Base, %3 : $Base, %4 : $Base):
%t1 = integer_literal $Builtin.Int1, -1
%f1 = integer_literal $Builtin.Int1, 0
%s1 = select_enum %0 : $E, case #E.A!enumelt: %t1, default %f1 : $Builtin.Int1
cond_br %s1, bb1, bb2
bb1:
%i1 = integer_literal $Builtin.Int64, 1
br bb5(%i1 : $Builtin.Int64)
bb2:
%s2 = select_enum %0 : $E, case #E.B!enumelt: %t1, default %f1 : $Builtin.Int1
cond_br %s2, bb3, bb4
bb3:
%i2 = integer_literal $Builtin.Int64, 2
br bb5(%i2 : $Builtin.Int64)
bb4:
%i3 = integer_literal $Builtin.Int64, 3
br bb5(%i3 : $Builtin.Int64)
bb5(%a3 : $Builtin.Int64):
return %a3 : $Builtin.Int64
}
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