File: hoist_destroy_addr_loop.sil

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// RUN: %target-sil-opt -opt-mode=none  -enable-sil-verify-all %s -destroy-addr-hoisting | %FileCheck %s --check-prefix=CHECK --check-prefix=CHECKDEB
// RUN: %target-sil-opt -opt-mode=speed -enable-sil-verify-all %s -destroy-addr-hoisting | %FileCheck %s --check-prefix=CHECK --check-prefix=CHECKOPT

sil_stage canonical

import Builtin

typealias AnyObject = Builtin.AnyObject

class X {
}

sil [ossa] @get_owned_X : $@convention(thin) () -> @owned X 

// Hoist the destroy_addr of an inout over a loop and over a deinit barrier to
// the top of the enclosing function.
//
// CHECK-LABEL: sil [ossa] @hoist_over_loop_inout : {{.*}} {
// CHECK:       {{bb[0-9]+}}([[ADDR:%[^,]+]] :
// CHECK-NEXT:    destroy_addr [[ADDR]]
// CHECK-LABEL: } // end sil function 'hoist_over_loop_inout'
sil [ossa] @hoist_over_loop_inout : $@convention(thin) (@inout X) -> () {
bb0(%0 : $*X):
 %1 = function_ref @get_owned_X : $@convention(thin) () -> @owned X 
 %14 = apply %1() : $@convention(thin) () -> @owned X 
 br bb1                        

bb1:   
 br bb2   

bb2:   
 cond_br undef, bb3, bb4   

bb3:   
 br bb1   

bb4:   
 destroy_addr %0 : $*X   
 store %14 to [init] %0 : $*X            
 %23 = tuple ()   
 return %23 : $()   
}

// CHECK-LABEL: sil [ossa] @nohoist_into_unrelated_access_scope_above_loop_lexical : {{.*}} {
// CHECK:       {{bb[0-9]+}}({{%[^,]+}} : @owned $X, [[REGISTER_1:%[^,]+]] : $*X):
// CHECK:         end_access
// CHECK-NEXT:    destroy_addr
// CHECK-LABEL: } // end sil function 'nohoist_into_unrelated_access_scope_above_loop_lexical'
sil [ossa] @nohoist_into_unrelated_access_scope_above_loop_lexical : $@convention(thin) (@owned X, @inout X) -> () {
bb0(%instance : @owned $X, %second: $*X):
 %addr = alloc_stack [lexical] $X
 store %instance to [init] %addr : $*X
 %scope = begin_access [modify] [static] %second : $*X
 %1 = function_ref @get_owned_X : $@convention(thin) () -> @owned X 
 %14 = apply %1() : $@convention(thin) () -> @owned X 
 destroy_value %14 : $X
 end_access %scope : $*X
 br bb1                        

bb1:   
 br bb2   

bb2:   
 cond_br undef, bb3, bb4   

bb3:   
 br bb1   

bb4:   
 destroy_addr %addr : $*X
 dealloc_stack %addr : $*X
 %23 = tuple ()   
 return %23 : $()   
}

// CHECK-LABEL: sil [ossa] @nohoist_into_unrelated_access_scope_above_loop_nonlexical : {{.*}} {
// CHECK:       {{bb[0-9]+}}({{%[^,]+}} : @owned $X, [[REGISTER_1:%[^,]+]] : $*X):
// CHECK:         destroy_addr
// CHECK:         begin_access
// CHECK-LABEL: } // end sil function 'nohoist_into_unrelated_access_scope_above_loop_nonlexical'
sil [ossa] @nohoist_into_unrelated_access_scope_above_loop_nonlexical : $@convention(thin) (@owned X, @inout X) -> () {
bb0(%instance : @owned $X, %second: $*X):
 %addr = alloc_stack $X
 store %instance to [init] %addr : $*X
 %scope = begin_access [modify] [static] %second : $*X
 %1 = function_ref @get_owned_X : $@convention(thin) () -> @owned X 
 %14 = apply %1() : $@convention(thin) () -> @owned X 
 destroy_value %14 : $X
 end_access %scope : $*X
 br bb1                        

bb1:   
 br bb2   

bb2:   
 cond_br undef, bb3, bb4   

bb3:   
 br bb1   

bb4:   
 destroy_addr %addr : $*X
 dealloc_stack %addr : $*X
 %23 = tuple ()   
 return %23 : $()   
}