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|
// RUN: %target-sil-opt -copy-propagation -canonical-ossa-rewrite-borrows -enable-sil-verify-all -opt-mode=none %s | %FileCheck %s --check-prefixes=CHECK,CHECK-ONONE
class C {}
sil [ossa] @get : $@convention(thin) () -> @owned C
sil [ossa] @see : $@convention(thin) (@guaranteed C) -> ()
sil [ossa] @end : $@convention(thin) (@owned C) -> ()
sil [ossa] @other : $@convention(thin) () -> ()
// Standard -O copy-propagation behavior.
//
// CHECK-LABEL: sil [ossa] @diamond__consume_lb__use_r : {{.*}} {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: cond_br undef, [[LEFT:bb[0-9]+]], [[RIGHT:bb[0-9]+]]
// CHECK: [[LEFT]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[BOTTOM:bb[0-9]+]]
// CHECK: [[RIGHT]]:
// CHECK: [[COPY:%[^,]+]] = copy_value [[INSTANCE]] :
// CHECK: apply {{%[^,]+}}([[COPY]])
// CHECK: br [[BOTTOM]]
// CHECK: [[BOTTOM]]:
// CHECK: store [[INSTANCE]]
// CHECK-LABEL: } // end sil function 'diamond__consume_lb__use_r'
sil [ossa] @diamond__consume_lb__use_r : $@convention(thin) () -> @out C {
top(%addr : $*C):
%get = function_ref @get : $@convention(thin) () -> @owned C
%instance = apply %get() : $@convention(thin) () -> @owned C
%copy = copy_value %instance : $C
cond_br undef, left, right
left:
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
apply %see(%instance) : $@convention(thin) (@guaranteed C) -> ()
destroy_value %instance : $C
apply %see(%copy) : $@convention(thin) (@guaranteed C) -> ()
br bottom
right:
%end = function_ref @end : $@convention(thin) (@owned C) -> ()
apply %end(%instance) : $@convention(thin) (@owned C) -> ()
br bottom
bottom:
store %copy to [init] %addr : $*C
%retval = tuple ()
return %retval : $()
}
// There is a consuming use in right. So bottom is a consumed block. Liveness
// is retracted up to the consume in right and up to the bottom of left.
// CHECK-LABEL: sil [ossa] @diamond__consume_r__use_l__destroy_b : {{.*}} {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: cond_br undef, [[LEFT:bb[0-9]+]], [[RIGHT:bb[0-9]+]]
// CHECK: [[LEFT]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: destroy_value [[INSTANCE]] : $C
// CHECK: br [[BOTTOM:bb[0-9]+]]
// CHECK: [[RIGHT]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[BOTTOM]]
// CHECK: [[BOTTOM]]:
// CHECK-NOT: destroy_value [[INSTANCE]]
// CHECK-LABEL: } // end sil function 'diamond__consume_r__use_l__destroy_b'
sil [ossa] @diamond__consume_r__use_l__destroy_b : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%instance = apply %get() : $@convention(thin) () -> @owned C
%copy = copy_value %instance : $C
cond_br undef, left, right
left:
destroy_value %copy : $C
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
apply %see(%instance) : $@convention(thin) (@guaranteed C) -> ()
br bottom
right:
%end = function_ref @end : $@convention(thin) (@owned C) -> ()
apply %end(%copy) : $@convention(thin) (@owned C) -> ()
br bottom
bottom:
destroy_value %instance : $C
%retval = tuple ()
return %retval : $()
}
// Only the consuming in r2 counts as a consume, so only bottom is a consumed
// block.
// CHECK-LABEL: sil [ossa] @diamond_2r__consume_r1r2__use_l__destroy_b : {{.*}} {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: cond_br undef, [[LEFT:bb[0-9]+]], [[RIGHT1:bb[0-9]+]]
// CHECK: [[LEFT]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE:%[^,]+]]) : $@convention(thin) (@guaranteed C) -> ()
// CHECK: destroy_value [[INSTANCE:%[^,]+]] : $C
// CHECK: br [[BOTTOM:bb[0-9]+]]
// CHECK: [[RIGHT1]]:
// CHECK: [[COPY:%[^,]+]] = copy_value [[INSTANCE:%[^,]+]] : $C
// CHECK: apply {{%[^,]+}}([[COPY]])
// CHECK: br [[RIGHT2:bb[0-9]+]]
// CHECK: [[RIGHT2]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE:%[^,]+]])
// CHECK-NOT: destroy_value
// CHECK: br [[BOTTOM]]
// CHECK: [[BOTTOM]]:
// CHECK-NOT: destroy_value
// CHECK-LABEL: } // end sil function 'diamond_2r__consume_r1r2__use_l__destroy_b'
sil [ossa] @diamond_2r__consume_r1r2__use_l__destroy_b : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%instance = apply %get() : $@convention(thin) () -> @owned C
%copy = copy_value %instance : $C
%copy2 = copy_value %copy : $C
cond_br undef, left, right
left:
destroy_value %copy : $C
destroy_value %copy2 : $C
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
apply %see(%instance) : $@convention(thin) (@guaranteed C) -> ()
br bottom
right:
%end = function_ref @end : $@convention(thin) (@owned C) -> ()
apply %end(%copy) : $@convention(thin) (@owned C) -> ()
br right2
right2:
apply %end(%copy2) : $@convention(thin) (@owned C) -> ()
br bottom
bottom:
destroy_value %instance : $C
%retval = tuple ()
return %retval : $()
}
// There are no consuming uses, so avoiding copies doesn't entail shortening the
// lifetime.
// CHECK-LABEL: sil [ossa] @diamond__use_lr__destroy_b : {{.*}} {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: cond_br undef, [[LEFT:bb[0-9]+]], [[RIGHT:bb[0-9]+]]
// CHECK: [[LEFT]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[BOTTOM:bb[0-9]+]]
// CHECK: [[RIGHT]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[BOTTOM]]
// CHECK: [[BOTTOM]]:
// CHECK: destroy_value [[INSTANCE]]
// CHECK-LABEL: } // end sil function 'diamond__use_lr__destroy_b'
sil [ossa] @diamond__use_lr__destroy_b : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%instance = apply %get() : $@convention(thin) () -> @owned C
%copy = copy_value %instance : $C
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
cond_br undef, left, right
left:
apply %see(%instance) : $@convention(thin) (@guaranteed C) -> ()
br bottom
right:
apply %see(%copy) : $@convention(thin) (@guaranteed C) -> ()
br bottom
bottom:
destroy_value %instance : $C
destroy_value %copy : $C
%retval = tuple ()
return %retval : $()
}
// Don't shorten the lifetime if there's a single consuming use.
// CHECK-LABEL: sil [ossa] @line_3__use_m__destroy_b : {{.*}} {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: br [[MIDDLE:bb[0-9]+]]
// CHECK: [[MIDDLE]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[BOTTOM:bb[0-9]+]]
// CHECK: [[BOTTOM]]:
// CHECK: destroy_value [[INSTANCE]]
// CHECK-LABEL: } // end sil function 'line_3__use_m__destroy_b'
sil [ossa] @line_3__use_m__destroy_b : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%instance = apply %get() : $@convention(thin) () -> @owned C
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
br middle
middle:
apply %see(%instance) : $@convention(thin) (@guaranteed C) -> ()
br bottom
bottom:
destroy_value %instance : $C
%retval = tuple ()
return %retval : $()
}
// Don't shorten the unconsumed lifetime on the left side.
// CHECK-LABEL: sil [ossa] @diamond_2l_2r__consume_r1__use_l1__destroy_l2 : {{.*}} {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: cond_br undef, [[LEFT1:bb[0-9]+]], [[RIGHT1:bb[0-9]+]]
// CHECK: [[LEFT1]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[LEFT2:bb[0-9]+]]
// CHECK: [[LEFT2]]:
// CHECK: destroy_value [[INSTANCE]]
// CHECK: [[RIGHT1]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK-LABEL: } // end sil function 'diamond_2l_2r__consume_r1__use_l1__destroy_l2'
sil [ossa] @diamond_2l_2r__consume_r1__use_l1__destroy_l2 : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%instance = apply %get() : $@convention(thin) () -> @owned C
cond_br undef, left, right
left:
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
apply %see(%instance) : $@convention(thin) (@guaranteed C) -> ()
br left2
left2:
destroy_value %instance : $C
br bottom
right:
%end = function_ref @end : $@convention(thin) (@owned C) -> ()
apply %end(%instance) : $@convention(thin) (@owned C) -> ()
br right2
right2:
br bottom
bottom:
%retval = tuple ()
return %retval : $()
}
// Verify that lifetime is not shortened up to boundary block if destroy was
// previously in its unique successor.
// CHECK-LABEL: sil [ossa] @doublediamond_2d2l__consume_r11_r21__use_l11__destroy_l11_l22 : $@convention(thin) () -> () {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: cond_br undef, [[LEFT11:bb[0-9]+]], [[RIGHT11:bb[0-9]+]]
// CHECK: [[LEFT11]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]]) : $@convention(thin) (@guaranteed C) -> ()
// CHECK: br [[MIDDLE:bb[0-9]+]]
// CHECK: [[RIGHT11]]:
// CHECK: [[COPY:%[^,]+]] = copy_value [[INSTANCE]]
// CHECK: apply {{%[^,]+}}([[COPY]])
// CHECK: br [[MIDDLE]]
// CHECK: [[MIDDLE]]:
// CHECK: cond_br undef, [[LEFT21:bb[0-9]+]], [[RIGHT21:bb[0-9]+]]
// CHECK: [[LEFT21]]:
// CHECK: br [[LEFT22:bb[0-9]+]]
// CHECK: [[LEFT22]]:
// The main check: the destroy hasn't been hoisted.
// CHECK: destroy_value [[INSTANCE]]
// CHECK: br [[EXIT:bb[0-9]+]]
// CHECK: [[RIGHT21]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[EXIT]]
// CHECK-LABEL: } // end sil function 'doublediamond_2d2l__consume_r11_r21__use_l11__destroy_l11_l22'
sil [ossa] @doublediamond_2d2l__consume_r11_r21__use_l11__destroy_l11_l22 : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
%end = function_ref @end : $@convention(thin) (@owned C) -> ()
%instance = apply %get() : $@convention(thin) () -> @owned C
%copy = copy_value %instance : $C
cond_br undef, left11, right11
left11:
apply %see(%instance) : $@convention(thin) (@guaranteed C) -> ()
destroy_value %instance : $C
br middle
right11:
apply %end(%instance) : $@convention(thin) (@owned C) -> ()
br middle
middle:
cond_br undef, left21, right21
left21:
br left22
left22:
destroy_value %copy : $C
br bottom
right21:
apply %end(%copy) : $@convention(thin) (@owned C) -> ()
br bottom
bottom:
%retval = tuple ()
return %retval : $()
}
// Verify that we don't shrink the lifetime even when there was a destroy
// already in the barrier block (left21).
// CHECK-LABEL: sil [ossa] @doublediamond_2d2l__consume_r11_r21__use_l11__destroy_l11_l21_l22_r21 : {{.*}} {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: cond_br undef, [[LEFT11:bb[0-9]+]], [[RIGHT11:bb[0-9]+]]
// CHECK: [[LEFT11]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[MIDDLE:bb[0-9]+]]
// CHECK: [[RIGHT11]]:
// CHECK: [[COPY:%[^,]+]] = copy_value [[INSTANCE]]
// CHECK: apply {{%[^,]+}}([[COPY]])
// CHECK: br [[MIDDLE]]
// CHECK: [[MIDDLE]]:
// CHECK: cond_br undef, [[LEFT21:bb[0-9]+]], [[RIGHT21:bb[0-9]+]]
// CHECK: [[LEFT21]]:
// CHECK: br [[LEFT22:bb[0-9]+]]
// CHECK: [[LEFT22]]:
// CHECK: destroy_value [[INSTANCE]]
// CHECK: br [[EXIT:bb[0-9]+]]
// CHECK: [[RIGHT21]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[EXIT]]
// CHECK: [[EXIT]]:
// CHECK-LABEL: } // end sil function 'doublediamond_2d2l__consume_r11_r21__use_l11__destroy_l11_l21_l22_r21'
sil [ossa] @doublediamond_2d2l__consume_r11_r21__use_l11__destroy_l11_l21_l22_r21 : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
%end = function_ref @end : $@convention(thin) (@owned C) -> ()
%instance = apply %get() : $@convention(thin) () -> @owned C
%copy = copy_value %instance : $C
cond_br undef, left1, right1
left1:
apply %see(%instance) : $@convention(thin) (@guaranteed C) -> ()
destroy_value %instance : $C
br middle
right1:
apply %end(%instance) : $@convention(thin) (@owned C) -> ()
br middle
middle:
%copy2 = copy_value %copy : $C
cond_br undef, left21, right21
left21:
destroy_value %copy2 : $C
br left22
left22:
destroy_value %copy : $C
br bottom
right21:
destroy_value %copy2 : $C
apply %end(%copy) : $@convention(thin) (@owned C) -> ()
br bottom
bottom:
%retval = tuple ()
return %retval : $()
}
// Verify that lifetime ends in boundary block when there is an extra copy and
// both it and the original are destroyed in the boundary block.
//
// CHECK-LABEL: sil [ossa] @doublediamond__consume_r11_r21__use_l11__destroy_l11_l21_r21 : {{.*}} {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: cond_br undef, [[LEFT11:bb[0-9]+]], [[RIGHT11:bb[0-9]+]]
// CHECK: [[LEFT11]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[MIDDLE:bb[0-9]+]]
// CHECK: [[RIGHT11]]:
// CHECK: [[COPY:%[^,]+]] = copy_value [[INSTANCE]]
// CHECK: apply {{%[^,]+}}([[COPY]])
// CHECK: br [[MIDDLE]]
// CHECK: [[MIDDLE]]:
// CHECK: cond_br undef, [[LEFT21:bb[0-9]+]], [[RIGHT21:bb[0-9]+]]
// CHECK: [[LEFT21]]:
// CHECK: destroy_value [[INSTANCE]]
// CHECK: br [[EXIT:bb[0-9]+]]
// CHECK: [[RIGHT21]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[EXIT]]
// CHECK-LABEL: } // end sil function 'doublediamond__consume_r11_r21__use_l11__destroy_l11_l21_r21'
sil [ossa] @doublediamond__consume_r11_r21__use_l11__destroy_l11_l21_r21 : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
%end = function_ref @end : $@convention(thin) (@owned C) -> ()
%instance = apply %get() : $@convention(thin) () -> @owned C
%copy = copy_value %instance : $C
cond_br undef, left11, right11
left11:
apply %see(%instance) : $@convention(thin) (@guaranteed C) -> ()
destroy_value %instance : $C
br middle
right11:
apply %end(%instance) : $@convention(thin) (@owned C) -> ()
br middle
middle:
%copy2 = copy_value %copy : $C
cond_br undef, left21, right21
left21:
destroy_value %copy2 : $C
destroy_value %copy : $C
br bottom
right21:
destroy_value %copy2 : $C
apply %end(%copy) : $@convention(thin) (@owned C) -> ()
br bottom
bottom:
%retval = tuple ()
return %retval : $()
}
// Verify that we don't hoist destroys up to a dead arg.
// CHECK-LABEL: sil [ossa] @line_2__def_arg_b__destroy_b : $@convention(thin) () -> () {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: br [[BOTTOM:bb[0-9]+]]([[INSTANCE]] :
// CHECK: [[BOTTOM]]([[PHI:%[^,]+]] :
// CHECK: apply
// CHECK: apply
// CHECK: destroy_value [[PHI]]
// CHECK-LABEL: } // end sil function 'line_2__def_arg_b__destroy_b'
sil [ossa] @line_2__def_arg_b__destroy_b : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
%end = function_ref @end : $@convention(thin) (@owned C) -> ()
%other = function_ref @other : $@convention(thin) () -> ()
%instance = apply %get() : $@convention(thin) () -> @owned C
br bottom(%instance : $C)
bottom(%phi : @owned $C):
apply %other() : $@convention(thin) () -> ()
apply %other() : $@convention(thin) () -> ()
destroy_value %phi : $C
%retval = tuple ()
return %retval : $()
}
// Verify that when original liveness extends to the bottom of a control-flow
// merge block, if there is no subsequent consume, it continues to extend there.
//
// CHECK-LABEL: sil [ossa] @consumedAtEntry_predecessor_is_control_flow_merge : {{.*}} {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: cond_br undef, [[LEFT_TOP:bb[0-9]+]], [[RIGHT:bb[0-9]+]]
// CHECK: [[LEFT_TOP]]:
// CHECK: cond_br undef, [[LEFT_LEFT:bb[0-9]+]], [[LEFT_RIGHT:bb[0-9]+]]
// CHECK: [[LEFT_LEFT]]:
// CHECK: br [[LEFT_BOTTOM:bb[0-9]+]]
// CHECK: [[LEFT_RIGHT]]:
// CHECK: br [[LEFT_BOTTOM]]
// CHECK: [[LEFT_BOTTOM]]:
// CHECK: destroy_value [[INSTANCE]]
// CHECK: br [[EXIT:bb[0-9]+]]
// CHECK: [[RIGHT]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[EXIT]]
// CHECK: [[EXIT]]:
// CHECK-LABEL: } // end sil function 'consumedAtEntry_predecessor_is_control_flow_merge'
sil [ossa] @consumedAtEntry_predecessor_is_control_flow_merge : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
%end = function_ref @end : $@convention(thin) (@owned C) -> ()
%instance = apply %get() : $@convention(thin) () -> @owned C
%copy = copy_value %instance : $C
cond_br undef, left_top, right
left_top:
cond_br undef, left_left, left_right
left_left:
br left_bottom
left_right:
br left_bottom
left_bottom:
destroy_value %copy : $C
br exit
right:
apply %end(%copy) : $@convention(thin) (@owned C) -> ()
br exit
exit:
destroy_value %instance : $C
%retval = tuple ()
return %retval : $()
}
// Verify that multiple live terminators only result in a single extension into
// the destination block edge.
//
// CHECK-LABEL: sil [ossa] @consumedAtEntry_predecessor_is_control_flow_merge__multiple_terminators_live : {{.*}} {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: cond_br undef, [[LEFT_TOP:bb[0-9]+]], [[RIGHT:bb[0-9]+]]
// CHECK: [[LEFT_TOP]]:
// CHECK: cond_br undef, [[LEFT_LEFT:bb[0-9]+]], [[LEFT_RIGHT:bb[0-9]+]]
// CHECK: [[LEFT_LEFT]]:
// CHECK: br [[LEFT_BOTTOM:bb[0-9]+]]
// CHECK: [[LEFT_RIGHT]]:
// CHECK: br [[LEFT_BOTTOM]]
// CHECK: [[LEFT_BOTTOM]]:
// CHECK: destroy_value [[INSTANCE]]
// CHECK: br [[EXIT:bb[0-9]+]]
// CHECK: [[RIGHT]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[EXIT]]
// CHECK-LABEL: } // end sil function 'consumedAtEntry_predecessor_is_control_flow_merge__multiple_terminators_live'
sil [ossa] @consumedAtEntry_predecessor_is_control_flow_merge__multiple_terminators_live : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
%end = function_ref @end : $@convention(thin) (@owned C) -> ()
%instance = apply %get() : $@convention(thin) () -> @owned C
%copy = copy_value %instance : $C
cond_br undef, left_top, right
left_top:
cond_br undef, left_left, left_right
left_left:
destroy_value %copy : $C
br left_bottom
left_right:
destroy_value %copy : $C
br left_bottom
left_bottom:
br exit
right:
apply %end(%copy) : $@convention(thin) (@owned C) -> ()
br exit
exit:
destroy_value %instance : $C
%retval = tuple ()
return %retval : $()
}
// Verify that a control-flow branch "grand predecessor" gets destroys in the
// right places in its successors.
// CHECK-LABEL: sil [ossa] @consumedAtEntry_predecessor_is_control_flow_branch : {{.*}} {
// CHECK: [[REGISTER_3:%[^,]+]] = apply
// CHECK: cond_br undef, [[LEFT_TOP:bb[0-9]+]], [[RIGHT:bb[0-9]+]]
// CHECK: [[LEFT_TOP]]:
// CHECK: cond_br undef, [[LEFT_LEFT:bb[0-9]+]], [[LEFT_RIGHT:bb[0-9]+]]
// CHECK: [[LEFT_LEFT]]:
// CHECK: destroy_value [[REGISTER_3]]
// CHECK: br [[EXIT:bb[0-9]+]]
// CHECK: [[LEFT_RIGHT]]:
// CHECK: destroy_value [[REGISTER_3]]
// CHECK: br [[EXIT]]
// CHECK: [[RIGHT]]:
// CHECK: apply {{%[^,]+}}([[REGISTER_3]])
// CHECK: br [[EXIT]]
// CHECK-LABEL: } // end sil function 'consumedAtEntry_predecessor_is_control_flow_branch'
sil [ossa] @consumedAtEntry_predecessor_is_control_flow_branch : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
%end = function_ref @end : $@convention(thin) (@owned C) -> ()
%instance = apply %get() : $@convention(thin) () -> @owned C
%copy = copy_value %instance : $C
cond_br undef, left_top, right
left_top:
destroy_value %copy : $C
cond_br undef, left_left, left_right
left_left:
br exit
left_right:
br exit
right:
apply %end(%copy) : $@convention(thin) (@owned C) -> ()
br exit
exit:
destroy_value %instance : $C
%retval = tuple ()
return %retval : $()
}
// Verify that a control-flow branch "grand predecessor" gets destroys in the
// right places in its successors. When one branch has a destroy.
// CHECK-LABEL: sil [ossa] @consumedAtEntry_predecessor_is_control_flow_branch__2 : {{.*}} {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: cond_br undef, [[LEFT_TOP:bb[0-9]+]], [[RIGHT:bb[0-9]+]]
// CHECK: [[LEFT_TOP]]:
// CHECK: cond_br undef, [[LEFT_LEFT:bb[0-9]+]], [[LEFT_RIGHT:bb[0-9]+]]
// CHECK: [[LEFT_LEFT]]:
// CHECK: destroy_value [[INSTANCE]]
// CHECK: br [[EXIT:bb[0-9]+]]
// CHECK: [[LEFT_RIGHT]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[EXIT]]
// CHECK: [[RIGHT]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[EXIT]]
// CHECK-LABEL: } // end sil function 'consumedAtEntry_predecessor_is_control_flow_branch__2'
sil [ossa] @consumedAtEntry_predecessor_is_control_flow_branch__2 : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
%end = function_ref @end : $@convention(thin) (@owned C) -> ()
%instance = apply %get() : $@convention(thin) () -> @owned C
%copy = copy_value %instance : $C
cond_br undef, left_top, right
left_top:
cond_br undef, left_left, left_right
left_left:
destroy_value %copy : $C
br exit
left_right:
apply %end(%copy) : $@convention(thin) (@owned C) -> ()
br exit
right:
apply %end(%copy) : $@convention(thin) (@owned C) -> ()
br exit
exit:
destroy_value %instance : $C
%retval = tuple ()
return %retval : $()
}
// Verify that a control-flow branch "grand predecessor" gets destroys in the
// right places in its successors. When one branch has a destroy the boundary
// can be extended to.
// CHECK-LABEL: sil [ossa] @consumedAtEntry_predecessor_is_control_flow_branch__3 : {{.*}} {
// CHECK: [[INSTANCE:%[^,]+]] = apply
// CHECK: cond_br undef, [[LEFT_TOP:bb[0-9]+]], [[RIGHT:bb[0-9]+]]
// CHECK: [[LEFT_TOP]]:
// CHECK: cond_br undef, [[LEFT_LEFT:bb[0-9]+]], [[LEFT_RIGHT:bb[0-9]+]]
// CHECK: [[LEFT_LEFT]]:
// CHECK: apply
// CHECK: destroy_value [[INSTANCE]]
// CHECK: br [[EXIT:bb[0-9]+]]
// CHECK: [[LEFT_RIGHT]]:
// CHECK: destroy_value [[INSTANCE]]
// CHECK: br [[EXIT]]
// CHECK: [[RIGHT]]:
// CHECK: apply {{%[^,]+}}([[INSTANCE]])
// CHECK: br [[EXIT]]
// CHECK-LABEL: } // end sil function 'consumedAtEntry_predecessor_is_control_flow_branch__3'
sil [ossa] @consumedAtEntry_predecessor_is_control_flow_branch__3 : $@convention(thin) () -> () {
top:
%get = function_ref @get : $@convention(thin) () -> @owned C
%see = function_ref @see : $@convention(thin) (@guaranteed C) -> ()
%end = function_ref @end : $@convention(thin) (@owned C) -> ()
%instance = apply %get() : $@convention(thin) () -> @owned C
%copy = copy_value %instance : $C
cond_br undef, left_top, right
left_top:
cond_br undef, left_left, left_right
left_left:
%other = function_ref @other : $@convention(thin) () -> ()
apply %other() : $@convention(thin) () -> ()
destroy_value %copy : $C
br exit
left_right:
destroy_value %copy : $C
br exit
right:
apply %end(%copy) : $@convention(thin) (@owned C) -> ()
br exit
exit:
destroy_value %instance : $C
%retval = tuple ()
return %retval : $()
}
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