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// RUN: %target-sil-opt -enable-sil-verify-all %s -move-cond-fail-to-preds | %FileCheck %s
import Builtin
import Swift
sil_stage canonical
// Make sure that we actually check all predecessors when we try to hoist
// cond_fails.
//
// CHECK-LABEL: sil @check_all_preds_when_hoisting_cond_fails : $@convention(thin) (Builtin.Int1) -> () {
sil @check_all_preds_when_hoisting_cond_fails : $@convention(thin) (Builtin.Int1) -> () {
bb0(%0 : $Builtin.Int1):
%1 = integer_literal $Builtin.Int1, 0
%2 = integer_literal $Builtin.Int64, 1
%3 = integer_literal $Builtin.Int64, 3
cond_br %0, bb3, bb2
// Make sure that the predecessor order here is not changed. This is necessary
// for the test to actually test that we are checking /all/ predecessors.
//
// CHECK: bb1({{.*}}): // Preds: bb2 bb1
bb1(%7 : $Builtin.Int64, %8 : $Builtin.Int64, %9 : $Builtin.Int1):
%10 = builtin "sadd_with_overflow_Int64"(%8 : $Builtin.Int64, %2 : $Builtin.Int64, %1 : $Builtin.Int1) : $(Builtin.Int64, Builtin.Int1)
%11 = tuple_extract %10 : $(Builtin.Int64, Builtin.Int1), 0
cond_fail %9 : $Builtin.Int1
%13 = builtin "sadd_with_overflow_Int64"(%7 : $Builtin.Int64, %2 : $Builtin.Int64, %1 : $Builtin.Int1) : $(Builtin.Int64, Builtin.Int1)
%14 = tuple_extract %13 : $(Builtin.Int64, Builtin.Int1), 0
%15 = tuple_extract %13 : $(Builtin.Int64, Builtin.Int1), 1
cond_fail %15 : $Builtin.Int1
%17 = builtin "cmp_eq_Int64"(%14 : $Builtin.Int64, %3 : $Builtin.Int64) : $Builtin.Int1
%18 = builtin "cmp_eq_Int64"(%11 : $Builtin.Int64, %3 : $Builtin.Int64) : $Builtin.Int1
cond_br %18, bb3, bb1(%14 : $Builtin.Int64, %11 : $Builtin.Int64, %17 : $Builtin.Int1)
// Make sure there can not be any cond_fail here.
// CHECK: bb2:
// CHECK-NEXT: br bb1
bb2:
br bb1(%2 : $Builtin.Int64, %2 : $Builtin.Int64, %1 : $Builtin.Int1)
// CHECK: bb3:
bb3:
%5 = tuple()
return %5 : $()
}
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