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fd4828e40a
I am doing this separately from the actual change to eliminate the option to make it easier to review.
50 lines
1.9 KiB
Plaintext
50 lines
1.9 KiB
Plaintext
// RUN: %target-sil-opt -sil-verify-without-invalidation -enable-sil-verify-all -simplify-cfg -closure-specialize %s
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// Test if the ClosureSpecializer correctly invalidates the dominator tree
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// even if there are no functions specialized.
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// The test just checks if the compiler does not crash.
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// First running SimplifyCFG creates the dominator tree, which should then be
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// invalidated by the ClosureSpecializer.
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// If this is not done correctly the verification will complain that the
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// dominator tree is not up to date.
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import Builtin
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import Swift
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sil @closure : $@convention(thin) () -> ()
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sil @use_closure : $@convention(thin) (@owned @callee_owned () -> ()) -> ()
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sil hidden [noinline] @use_closure2 : $@convention(thin) (@owned @callee_owned () -> (), @owned @callee_owned () -> ()) -> () {
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bb0(%0 : $@callee_owned () -> (), %1 : $@callee_owned () -> ()):
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%2 = apply %0() : $@callee_owned () -> ()
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%3 = apply %1() : $@callee_owned () -> ()
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%4 = tuple ()
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return %3 : $()
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}
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sil @insert_release_in_liferange_exit_block : $@convention(thin) () -> () {
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bb0:
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%2 = function_ref @closure : $@convention(thin) () -> ()
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%3 = partial_apply %2() : $@convention(thin) () -> ()
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%8 = function_ref @use_closure : $@convention(thin) (@owned @callee_owned () -> ()) -> ()
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%5 = partial_apply %8(%3) : $@convention(thin) (@owned @callee_owned () -> ()) -> ()
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// There is a critical edge from bb0 to bb2 which is broken by ValueLifetimeAnalysis.
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cond_br undef, bb2, bb1
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bb1:
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strong_retain %3 : $@callee_owned () -> ()
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strong_retain %3 : $@callee_owned () -> ()
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%10 = function_ref @use_closure2 : $@convention(thin) (@owned @callee_owned () -> (), @owned @callee_owned () -> ()) -> ()
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// Passing two closures actually prevents closure specialization.
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%17 = apply %10(%3, %3) : $@convention(thin) (@owned @callee_owned () -> (), @owned @callee_owned () -> ()) -> ()
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br bb2
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bb2:
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strong_release %5 : $@callee_owned () -> ()
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%11 = tuple ()
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return %11 : $()
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}
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