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1961be8845
Previously, both swift-frontend and sil-opt put lexical lifetimes behind a flag named -enable-experimental-lexical-lifetimes. That's redundant. Here, the experimental portion of the name is dropped.
58 lines
1.5 KiB
Plaintext
58 lines
1.5 KiB
Plaintext
// RUN: %target-sil-opt -enable-sil-verify-all -enable-lexical-lifetimes %s -mem2reg | %FileCheck %s
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import Builtin
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import Swift
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class C {}
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sil [ossa] @_Ts5printFT3valSi_T_ : $@convention(thin) (@guaranteed C) -> ()
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// CHECK-LABEL: sil [ossa] @liveness0 :
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// CHECK-NOT: alloc_stack
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sil [ossa] @liveness0 : $@convention(thin) (@owned C, @owned C, @owned C, @owned C) -> () {
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bb0(%instance_1 : @owned $C, %instance_2 : @owned $C, %instance_3 : @owned $C, %instance_4 : @owned $C):
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%addr_x = alloc_stack [lexical] $C
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store %instance_1 to [init] %addr_x : $*C
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cond_br undef, bb1, bb5
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bb1:
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%addr_y = alloc_stack [lexical] $C
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store %instance_2 to [init] %addr_y : $*C
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cond_br undef, bb2, bb3
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bb2:
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destroy_value %instance_4 : $C
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store %instance_3 to [assign] %addr_y : $*C
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br bb4
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bb3:
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destroy_value %instance_3 : $C
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store %instance_4 to [assign] %addr_y : $*C
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br bb4
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bb4:
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// function_ref
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%print = function_ref @_Ts5printFT3valSi_T_ : $@convention(thin) (@guaranteed C) -> ()
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%26 = load [take] %addr_y : $*C
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%36 = apply %print(%26) : $@convention(thin) (@guaranteed C) -> ()
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destroy_value %26 : $C
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dealloc_stack %addr_y : $*C
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br bb6
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bb5:
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destroy_value %instance_2 : $C
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destroy_value %instance_3 : $C
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destroy_value %instance_4 : $C
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br bb6
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// We don't need a PHI node here because the value is dead!
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// CHECK: bb5:
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bb6:
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destroy_addr %addr_x : $*C
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dealloc_stack %addr_x : $*C
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%40 = tuple ()
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return %40 : $()
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}
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// CHECK-LABEL: } // end sil function 'liveness0'
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