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// RUN: %target-sil-opt -test-runner %s -o /dev/null 2>&1 | %FileCheck %s
class C {}
sil [ossa] @callee_owned : $@convention(thin) (@owned C) -> ()
// Fold apply when guaranteed lexical value used in one but not two branches
// and the lexical scope ends before the use on the non-lexical branch.
//
// CHECK-LABEL: sil [ossa] @nofold_two_parallel_owned_uses_one_lexical___scope_ends_before_use : {{.*}} {
// CHECK: {{bb[0-9]+}}([[INSTANCE:%[^,]+]] :
// CHECK: [[COPY:%[^,]+]] = copy_value [[INSTANCE]]
// CHECK: [[MOVE:%[^,]+]] = move_value [lexical] [[INSTANCE]]
// CHECK: [[CALLEE_OWNED:%[^,]+]] = function_ref @callee_owned
// CHECK: cond_br undef, [[LEFT:bb[0-9]+]], [[RIGHT:bb[0-9]+]]
// CHECK: [[LEFT]]:
// CHECK: apply [[CALLEE_OWNED]]([[MOVE]])
// CHECK: destroy_value [[COPY]]
// CHECK: br [[EXIT:bb[0-9]+]]
// CHECK: [[RIGHT]]:
// CHECK: destroy_value [[MOVE]]
// CHECK: apply [[CALLEE_OWNED]]([[COPY]])
// CHECK: br [[EXIT]]
// CHECK: [[EXIT]]:
// CHECK-LABEL: } // end sil function 'nofold_two_parallel_owned_uses_one_lexical___scope_ends_before_use'
sil [ossa] @nofold_two_parallel_owned_uses_one_lexical___scope_ends_before_use : $@convention(thin) (@owned C) -> () {
entry(%instance : @owned $C):
specify_test "lexical-destroy-folding @trace[0]"
%copy_2 = copy_value %instance : $C
%lifetime = begin_borrow [lexical] %instance : $C
debug_value [trace] %lifetime : $C
%callee_owned = function_ref @callee_owned : $@convention(thin) (@owned C) -> ()
cond_br undef, left, right
left:
%copy_1 = copy_value %lifetime : $C
apply %callee_owned(%copy_1) : $@convention(thin) (@owned C) -> ()
end_borrow %lifetime : $C
destroy_value %instance : $C
destroy_value %copy_2 : $C
br exit
right:
end_borrow %lifetime : $C
destroy_value %instance : $C
apply %callee_owned(%copy_2) : $@convention(thin) (@owned C) -> ()
br exit
exit:
%retval = tuple ()
return %retval : $()
}
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