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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: bb0
// CHECK-NEXT: br bb1
br bb1(%1 : $Pair)
bb1(%2 : $Pair):
br bb1(%2 : $Pair)
}
// CHECK-LABEL: sil [ossa] @redundant_phi_unreachable : $@convention(thin) () -> () {
// CHECK: bb1({{.*}}):
// CHECK-LABEL: } // end sil function 'redundant_phi_unreachable'
sil [ossa] @redundant_phi_unreachable : $@convention(thin) () -> () {
bb0:
%1 = integer_literal $Builtin.Int32, 37
br bb3
bb1(%3 : $Builtin.Int32):
cond_br undef, bb2, bb4
bb2:
br bb1(%3 : $Builtin.Int32)
bb4:
br bb3
bb3:
%r = tuple()
return %r : $()
}
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