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e5d87f75a8
It is necessary for opaque values where for casts that will newly start out as checked_cast_brs and be lowered to checked_cast_addr_brs, since the latter has the source formal type, IRGen relies on being able to access it, and there's no way in general to obtain the source formal type from the source lowered type.
95 lines
2.5 KiB
Plaintext
95 lines
2.5 KiB
Plaintext
// RUN: %target-sil-opt -enable-sil-verify-all %s -jumpthread-simplify-cfg | %FileCheck %s
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// Two select_enum instructions must not be considered as the same "condition",
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// even if they have the same enum operand.
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// This test checks that SimplifyCFG does not remove a dominated terminator with
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// such a condition.
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sil_stage canonical
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import Builtin
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import Swift
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enum E {
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case A
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case B
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case C
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}
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class Base { }
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class Derived1 : Base { }
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class Derived2 : Base { }
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// CHECK-LABEL: sil @test_checked_cast_br
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// CHECK: select_enum
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// CHECK: checked_cast_br
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// CHECK: integer_literal $Builtin.Int64, 1
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// CHECK: select_enum
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// CHECK: checked_cast_br
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// CHECK: integer_literal $Builtin.Int64, 2
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// CHECK: integer_literal $Builtin.Int64, 3
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// CHECK: return
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sil @test_checked_cast_br : $@convention(thin) (E, @owned Base, @owned Base, @owned Base, @owned Base) -> Builtin.Int64 {
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bb0(%0 : $E, %1 : $Base, %2 : $Base, %3 : $Base, %4 : $Base):
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%s1 = select_enum %0 : $E, case #E.A!enumelt: %1, default %2 : $Base
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checked_cast_br Base in %s1 : $Base to Derived1, bb1, bb2
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bb1(%a1 : $Derived1):
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%i1 = integer_literal $Builtin.Int64, 1
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br bb5(%i1 : $Builtin.Int64)
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bb2:
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%s2 = select_enum %0 : $E, case #E.B!enumelt: %3, default %4 : $Base
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checked_cast_br Base in %s2 : $Base to Derived1, bb3, bb4
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bb3(%a2 : $Derived1):
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%i2 = integer_literal $Builtin.Int64, 2
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br bb5(%i2 : $Builtin.Int64)
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bb4:
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%i3 = integer_literal $Builtin.Int64, 3
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br bb5(%i3 : $Builtin.Int64)
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bb5(%a3 : $Builtin.Int64):
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return %a3 : $Builtin.Int64
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}
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// CHECK-LABEL: sil @test_cond_br
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// CHECK: select_enum
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// CHECK: cond_br
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// CHECK: integer_literal $Builtin.Int64, 1
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// CHECK: select_enum
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// CHECK: cond_br
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// CHECK: integer_literal $Builtin.Int64, 2
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// CHECK: integer_literal $Builtin.Int64, 3
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// CHECK: return
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sil @test_cond_br : $@convention(thin) (E, @owned Base, @owned Base, @owned Base, @owned Base) -> Builtin.Int64 {
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bb0(%0 : $E, %1 : $Base, %2 : $Base, %3 : $Base, %4 : $Base):
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%t1 = integer_literal $Builtin.Int1, -1
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%f1 = integer_literal $Builtin.Int1, 0
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%s1 = select_enum %0 : $E, case #E.A!enumelt: %t1, default %f1 : $Builtin.Int1
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cond_br %s1, bb1, bb2
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bb1:
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%i1 = integer_literal $Builtin.Int64, 1
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br bb5(%i1 : $Builtin.Int64)
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bb2:
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%s2 = select_enum %0 : $E, case #E.B!enumelt: %t1, default %f1 : $Builtin.Int1
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cond_br %s2, bb3, bb4
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bb3:
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%i2 = integer_literal $Builtin.Int64, 2
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br bb5(%i2 : $Builtin.Int64)
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bb4:
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%i3 = integer_literal $Builtin.Int64, 3
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br bb5(%i3 : $Builtin.Int64)
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bb5(%a3 : $Builtin.Int64):
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return %a3 : $Builtin.Int64
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}
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