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// RUN: %target-sil-opt -enable-sil-verify-all %s -simplify-bb-args -sroa-bb-args | %FileCheck %s
sil_stage canonical
import Builtin
import Swift
import SwiftShims
enum E {
case A
case B
}
// Check that we don't crash in simplifyToSelectValue (rdar://problem/20037686)
// CHECK-LABEL: @test
sil public @test : $@convention(thin) (Builtin.Int64, @inout E) -> () {
bb0(%0 : $Builtin.Int64, %x : $*E):
%1 = integer_literal $Builtin.Int64, 0
%2 = builtin "cmp_eq_Int64"(%0 : $Builtin.Int64, %1 : $Builtin.Int64) : $Builtin.Int1
cond_br %2, bb3, bb1
bb1:
%4 = enum $E, #E.A!enumelt
br bb2(%4 : $E)
bb2(%6 : $E):
store %6 to %x : $*E
br bb3
bb3:
%8 = tuple ()
return %8 : $()
}
// Verify that we do not crash in argument splitting (rdar://problem/25008398).
class C {
@_hasStorage let x: Builtin.Int32
init()
}
struct Pair {
@_hasStorage let first: C
@_hasStorage let second: C
}
// CHECK-LABEL: @simplify_args_crash
sil @simplify_args_crash : $@convention(thin) (Pair) -> () {
bb0(%1 : $Pair):
// CHECK: [[SECOND:%.*]] = struct_extract %0 : $Pair, #Pair.second
// CHECK: [[FIRST:%.*]] = struct_extract %0 : $Pair, #Pair.first
// CHECK: br bb1([[FIRST]] : $C, [[SECOND]] : $C)
br bb1(%1 : $Pair)
// CHECK: bb1([[FIRST2:%.*]] : $C, [[SECOND2:%.*]] : $C):
bb1(%2 : $Pair):
// CHECK: [[STRUCT:%.*]] = struct $Pair ([[FIRST2]] : $C, [[SECOND2]] : $C)
// CHECK: [[SECOND3:%.*]] = struct_extract [[STRUCT]] : $Pair, #Pair.second
// CHECK: [[FIRST3:%.*]] = struct_extract [[STRUCT]] : $Pair, #Pair.first
// CHECK: br bb1([[FIRST3]] : $C, [[SECOND3]] : $C)
br bb1(%2 : $Pair)
}
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