| // RUN: %target-sil-opt -assume-parsing-unqualified-ownership-sil -sil-verify-without-invalidation -enable-sil-verify-all -simplify-cfg -closure-specialize %s |
| |
| // Test if the ClosureSpecializer correctly invalidates the dominator tree |
| // even if there are no functions specialized. |
| // The test just checks if the compiler does not crash. |
| // First running SimplifyCFG creates the dominator tree, which should then be |
| // invalidated by the ClosureSpecializer. |
| // If this is not done correctly the verification will complain that the |
| // dominator tree is not up to date. |
| |
| import Builtin |
| import Swift |
| |
| sil @closure : $@convention(thin) () -> () |
| |
| sil @use_closure : $@convention(thin) (@owned @callee_owned () -> ()) -> () |
| |
| sil hidden [noinline] @use_closure2 : $@convention(thin) (@owned @callee_owned () -> (), @owned @callee_owned () -> ()) -> () { |
| bb0(%0 : $@callee_owned () -> (), %1 : $@callee_owned () -> ()): |
| %2 = apply %0() : $@callee_owned () -> () |
| %3 = apply %1() : $@callee_owned () -> () |
| %4 = tuple () |
| return %3 : $() |
| } |
| |
| sil @insert_release_in_liferange_exit_block : $@convention(thin) () -> () { |
| bb0: |
| %2 = function_ref @closure : $@convention(thin) () -> () |
| %3 = partial_apply %2() : $@convention(thin) () -> () |
| %8 = function_ref @use_closure : $@convention(thin) (@owned @callee_owned () -> ()) -> () |
| %5 = partial_apply %8(%3) : $@convention(thin) (@owned @callee_owned () -> ()) -> () |
| |
| // There is a critical edge from bb0 to bb2 which is broken by ValueLifetimeAnalysis. |
| cond_br undef, bb2, bb1 |
| |
| bb1: |
| strong_retain %3 : $@callee_owned () -> () |
| strong_retain %3 : $@callee_owned () -> () |
| %10 = function_ref @use_closure2 : $@convention(thin) (@owned @callee_owned () -> (), @owned @callee_owned () -> ()) -> () |
| |
| // Passing two closures actually prevents closure specialization. |
| %17 = apply %10(%3, %3) : $@convention(thin) (@owned @callee_owned () -> (), @owned @callee_owned () -> ()) -> () |
| br bb2 |
| |
| bb2: |
| strong_release %5 : $@callee_owned () -> () |
| %11 = tuple () |
| return %11 : $() |
| } |