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|
// RUN: %target-sil-opt -module-name Swift -sil-ownership-verifier-enable-testing -ownership-verifier-textual-error-dumper -enable-sil-verify-all=0 %s -o /dev/null 2>&1 | %FileCheck %s
// REQUIRES: asserts
// This is a test that verifies ownership behavior around arguments that should
// be flagged as failures.
sil_stage canonical
import Builtin
//////////////////
// Declarations //
//////////////////
struct NativeObjectPair {
var obj1 : Builtin.NativeObject
var obj2 : Builtin.NativeObject
}
enum FakeOptional<T> {
case none
case some(T)
}
///////////
// Tests //
///////////
// CHECK-NOT: Function: 'no_end_borrow_error1'
sil [ossa] @no_end_borrow_error1 : $@convention(thin) (@guaranteed Builtin.NativeObject) -> () {
bb0(%0 : @guaranteed $Builtin.NativeObject):
br bb1(%0 : $Builtin.NativeObject)
bb1(%1 : @guaranteed $Builtin.NativeObject):
%9999 = tuple()
return %9999 : $()
}
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'no_end_borrow_error2'
// CHECK: Non trivial values, non address values, and non guaranteed function args must have at least one lifetime ending use?!
// CHECK: Value: %3 = argument of bb1 : $Builtin.NativeObject
// CHECK-LABEL: Error#: 0. End Error in Function: 'no_end_borrow_error2'
//
// CHECK-NOT: Error#: {{[0-9][0-9]*}}. End Error in Function: 'no_end_borrow_error2'
sil [ossa] @no_end_borrow_error2 : $@convention(thin) (@guaranteed Builtin.NativeObject) -> () {
bb0(%0 : @guaranteed $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
br bb1(%1 : $Builtin.NativeObject)
bb1(%2 : @guaranteed $Builtin.NativeObject):
%9999 = tuple()
return %9999 : $()
}
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'leak_along_path'
// CHECK: Error! Found a leak due to a consuming post-dominance failure!
// CHECK: Value: %3 = argument of bb1 : $Builtin.NativeObject
// CHECK: Post Dominating Failure Blocks:
// CHECK: bb3
// CHECK: Error#: 0. End Error in Function: 'leak_along_path'
//
// CHECK-NOT: Error#: {{[0-9][0-9]*}}. End Error in Function: 'leak_along_path'
sil [ossa] @leak_along_path : $@convention(thin) (@guaranteed Builtin.NativeObject) -> () {
bb0(%0 : @guaranteed $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
br bb1(%1 : $Builtin.NativeObject)
bb1(%2 : @guaranteed $Builtin.NativeObject):
cond_br undef, bb2, bb3
bb2:
end_borrow %2 : $Builtin.NativeObject
br bb4
bb3:
br bb4
bb4:
%9999 = tuple()
return %9999 : $()
}
// Make sure that we only flag the subargument leak and not the parent
// argument. Also check for over consuming due to phi nodes.
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'leak_along_subarg_path'
// CHECK: Error! Found a leak due to a consuming post-dominance failure!
// CHECK: Value: %7 = argument of bb3 : $Builtin.NativeObject
// CHECK: Post Dominating Failure Blocks:
// CHECK: bb6
// CHECK: Error#: 0. End Error in Function: 'leak_along_subarg_path'
//
// CHECK-NOT: Error#: {{[0-9][0-9]*}}. End Error in Function: 'leak_along_subarg_path'
sil [ossa] @leak_along_subarg_path : $@convention(thin) (@guaranteed Builtin.NativeObject) -> () {
bb0(%0 : @guaranteed $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
br bb1(%1 : $Builtin.NativeObject)
bb1(%2 : @guaranteed $Builtin.NativeObject):
cond_br undef, bb2, bb5
bb2:
%2a = begin_borrow %2 : $Builtin.NativeObject
br bb3(%2a : $Builtin.NativeObject)
bb3(%3 : @guaranteed $Builtin.NativeObject):
cond_br undef, bb4, bb6
bb4:
end_borrow %3 : $Builtin.NativeObject
br bb7
bb5:
br bb7
bb6:
br bb7
bb7:
end_borrow %2 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
}
// CHECK-NOT: Function: 'good_order_1'
sil [ossa] @good_order_1 : $@convention(thin) (@owned Builtin.NativeObject) -> () {
bb0(%0 : @owned $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
cond_br undef, bb1, bb5
bb1:
br bb2(%1 : $Builtin.NativeObject)
bb2(%2 : @guaranteed $Builtin.NativeObject):
end_borrow %2 : $Builtin.NativeObject
cond_br undef, bb3, bb6
bb3:
br bb4
bb4:
destroy_value %0 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
bb5:
end_borrow %1 : $Builtin.NativeObject
br bb4
bb6:
br bb4
}
// CHECK-NOT: Function: 'good_order_2'
sil [ossa] @good_order_2 : $@convention(thin) (@owned Builtin.NativeObject) -> () {
bb0(%0 : @owned $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
cond_br undef, bb1, bb5
bb1:
%1a = begin_borrow %1 : $Builtin.NativeObject
br bb2(%1a : $Builtin.NativeObject)
bb2(%2 : @guaranteed $Builtin.NativeObject):
end_borrow %2 : $Builtin.NativeObject
end_borrow %1 : $Builtin.NativeObject
cond_br undef, bb3, bb6
bb3:
br bb4
bb4:
destroy_value %0 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
bb5:
end_borrow %1 : $Builtin.NativeObject
br bb4
bb6:
br bb4
}
// Make sure that we only flag the end_borrow "use after free" in bb2.
//
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'bad_order'
// CHECK: Found outside of lifetime use?!
// CHECK: Value: %1 = begin_borrow %0 : $Builtin.NativeObject
// CHECK: Consuming User: end_borrow %1 : $Builtin.NativeObject
// CHECK: Non Consuming User: end_borrow %5 : $Builtin.NativeObject
// CHECK: Block: bb2
// CHECK: Error#: 0. End Error in Function: 'bad_order'
//
// CHECK-NOT: Error#: {{[0-9][0-9]*}}. End Error in Function: 'bad_order'
sil [ossa] @bad_order : $@convention(thin) (@owned Builtin.NativeObject) -> () {
bb0(%0 : @owned $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
cond_br undef, bb1, bb5
bb1:
%1a = begin_borrow %1 : $Builtin.NativeObject
br bb2(%1a : $Builtin.NativeObject)
bb2(%2 : @guaranteed $Builtin.NativeObject):
end_borrow %1 : $Builtin.NativeObject
end_borrow %2 : $Builtin.NativeObject
cond_br undef, bb3, bb6
bb3:
br bb4
bb4:
destroy_value %0 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
bb5:
end_borrow %1 : $Builtin.NativeObject
br bb4
bb6:
br bb4
}
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'bad_order_add_a_level'
// CHECK: Found outside of lifetime use?!
// CHECK: Value: %1 = begin_borrow %0 : $Builtin.NativeObject // users: %19, %14, %6, %3
// CHECK: Consuming User: end_borrow %1 : $Builtin.NativeObject // id: %6
// CHECK: Non Consuming User: end_borrow %5 : $Builtin.NativeObject // id: %7
// CHECK: Block: bb2
// CHECK-LABEL: Error#: 0. End Error in Function: 'bad_order_add_a_level'
// CHECK-LABEL: Error#: 1. Begin Error in Function: 'bad_order_add_a_level'
// CHECK: Found over consume?!
// CHECK: Value: %1 = begin_borrow %0 : $Builtin.NativeObject // users: %19, %14, %6, %3
// CHECK: User: end_borrow %1 : $Builtin.NativeObject // id: %14
// CHECK: Block: bb2
// CHECK: Consuming Users:
// CHECK: end_borrow %1 : $Builtin.NativeObject // id: %19
// CHECK: end_borrow %1 : $Builtin.NativeObject // id: %14
// CHECK: end_borrow %1 : $Builtin.NativeObject // id: %6
// CHECK: Error#: 1. End Error in Function: 'bad_order_add_a_level'
//
// This block is reported as leaking block since given our partial-cfg:
//
// /---> BB3
// BB1 -> BB2 ------> BB5
//
// we create the borrow at BB1 and end its lifetime at BB2 and BB5. This causes
// us to walk up, identify they double consume at BB2 from BB5. Since we skipped
// BB3 that is identified as a leaking block appropriately.
//
// CHECK-LABEL: Error#: 2. Begin Error in Function: 'bad_order_add_a_level'
// CHECK: Error! Found a leak due to a consuming post-dominance failure!
// CHECK: Value: %1 = begin_borrow %0 : $Builtin.NativeObject // users: %19, %14, %6, %3
// CHECK: Post Dominating Failure Blocks:
// CHECK: bb3
// CHECK-LABEL: Error#: 2. End Error in Function: 'bad_order_add_a_level'
//
// CHECK-LABEL: Error#: 3. Begin Error in Function: 'bad_order_add_a_level'
// CHECK: Found outside of lifetime use!
// CHECK: Value: %1 = begin_borrow %0 : $Builtin.NativeObject // users: %19, %14, %6, %3
// CHECK: User: %9 = begin_borrow %5 : $Builtin.NativeObject // user: %10
// CHECK: Block: bb3
// CHECK-LABEL: Error#: 3. End Error in Function: 'bad_order_add_a_level'
//
// CHECK-LABEL: Error#: 6. Begin Error in Function: 'bad_order_add_a_level'
// CHECK: Found over consume?!
// CHECK: Value: %5 = argument of bb2 : $Builtin.NativeObject // users: %13, %9, %7
// CHECK: User: end_borrow %5 : $Builtin.NativeObject // id: %13
// CHECK: Block: bb2
// CHECK: Consuming Users:
// CHECK: end_borrow %5 : $Builtin.NativeObject // id: %13
// CHECK: end_borrow %5 : $Builtin.NativeObject // id: %7
// CHECK: Error#: 6. End Error in Function: 'bad_order_add_a_level'
//
// CHECK-LABEL: Error#: 7. Begin Error in Function: 'bad_order_add_a_level'
// CHECK: Error! Found a leak due to a consuming post-dominance failure!
// CHECK: Value: %5 = argument of bb2 : $Builtin.NativeObject // users: %13, %9, %7
// CHECK: Post Dominating Failure Blocks:
// CHECK: bb3
// CHECK: Error#: 7. End Error in Function: 'bad_order_add_a_level'
// CHECK: Error#: 9. Begin Error in Function: 'bad_order_add_a_level'
// CHECK: Error! Found a leak due to a consuming post-dominance failure!
// CHECK: Value: %5 = argument of bb2 : $Builtin.NativeObject // users: %13, %9, %7
// CHECK: Post Dominating Failure Blocks:
// CHECK: bb3
// CHECK-LABEL: Error#: 9. End Error in Function: 'bad_order_add_a_level'
//
// CHECK-LABEL: Error#: 10. Begin Error in Function: 'bad_order_add_a_level'
// CHECK: Found outside of lifetime use!
// CHECK: Value: %5 = argument of bb2 : $Builtin.NativeObject // users: %13, %9, %7
// CHECK: User: br bb4(%9 : $Builtin.NativeObject) // id: %10
// CHECK: Block: bb3
// CHECK-LABEL: Error#: 10. End Error in Function: 'bad_order_add_a_level'
//
// We found a use that we didn't visit. For our purposes, we consider this to be
// an outside lifetime use rather than use after freer to unite it with errors
// from uses that are not reachable from the definition of the value.
//
// CHECK-LABEL: Error#: 11. Begin Error in Function: 'bad_order_add_a_level'
// CHECK: Found outside of lifetime use!
// CHECK: Value: %5 = argument of bb2 : $Builtin.NativeObject // users: %13, %9, %7
// CHECK: User: %9 = begin_borrow %5 : $Builtin.NativeObject // user: %10
// CHECK: Block: bb3
// CHECK: Error#: 11. End Error in Function: 'bad_order_add_a_level'
//
// CHECK-LABEL: Error#: 12. Begin Error in Function: 'bad_order_add_a_level'
// CHECK: Non trivial values, non address values, and non guaranteed function args must have at least one lifetime ending use?!
// CHECK: Value: %11 = argument of bb4 : $Builtin.NativeObject
// CHECK: Error#: 12. End Error in Function: 'bad_order_add_a_level'
sil [ossa] @bad_order_add_a_level : $@convention(thin) (@owned Builtin.NativeObject) -> () {
bb0(%0 : @owned $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
cond_br undef, bb1, bb7
bb1:
%2 = begin_borrow %1 : $Builtin.NativeObject
br bb2(%2 : $Builtin.NativeObject)
bb2(%4 : @guaranteed $Builtin.NativeObject):
end_borrow %1 : $Builtin.NativeObject
end_borrow %4 : $Builtin.NativeObject
cond_br undef, bb3, bb5
bb3:
%4a = begin_borrow %4 : $Builtin.NativeObject
br bb4(%4a : $Builtin.NativeObject)
bb4(%9 : @guaranteed $Builtin.NativeObject):
br bb6
bb5:
end_borrow %4 : $Builtin.NativeObject
end_borrow %1 : $Builtin.NativeObject
br bb6
bb6:
destroy_value %0 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
bb7:
end_borrow %1 : $Builtin.NativeObject
br bb6
}
// Check that we only add an argument to the use set of its parent argument.
// This ensures that when checking we do not waste a bunch of compile time by
// propagating up end_borrows through many arguments. Also make sure that we do
// properly visit terminators so that we do not erroneously flag them as
// improper uses.
//
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'bad_order_add_a_level_2'
// CHECK: Found outside of lifetime use?!
// CHECK: Value: %1 = begin_borrow %0 : $Builtin.NativeObject // users: %22, %16, %12, %6, %3
// CHECK: Consuming User: end_borrow %1 : $Builtin.NativeObject // id: %16
// CHECK: Non Consuming User: end_borrow %5 : $Builtin.NativeObject // id: %17
// CHECK: Block: bb5
// CHECK-LABEL: Error#: 0. End Error in Function: 'bad_order_add_a_level_2'
//
// CHECK-LABEL: Error#: 1. Begin Error in Function: 'bad_order_add_a_level_2'
// CHECK: Found outside of lifetime use?!
// CHECK: Value: %1 = begin_borrow %0 : $Builtin.NativeObject // users: %22, %16, %12, %6, %3
// CHECK: Consuming User: end_borrow %1 : $Builtin.NativeObject // id: %12
// CHECK: Non Consuming User: end_borrow %5 : $Builtin.NativeObject // id: %13
// CHECK: Block: bb4
// CHECK-LABEL:Error#: 1. End Error in Function: 'bad_order_add_a_level_2'
// CHECK-LABEL: Error#: 2. Begin Error in Function: 'bad_order_add_a_level_2'
// CHECK: Found outside of lifetime use?!
// CHECK: Value: %1 = begin_borrow %0 : $Builtin.NativeObject // users: %22, %16, %12, %6, %3
// CHECK: Consuming User: end_borrow %1 : $Builtin.NativeObject // id: %6
// CHECK: Non Consuming User: end_borrow %5 : $Builtin.NativeObject // id: %7
// CHECK: Block: bb2
// CHECK-LABEL: Error#: 2. End Error in Function: 'bad_order_add_a_level_2'
//
// CHECK-LABEL: Error#: 3. Begin Error in Function: 'bad_order_add_a_level_2'
// CHECK: Found over consume?!
// CHECK: Value: %1 = begin_borrow %0 : $Builtin.NativeObject // users: %22, %16, %12, %6, %3
// CHECK: User: end_borrow %1 : $Builtin.NativeObject // id: %16
// CHECK: Block: bb2
// CHECK: Consuming Users:
// CHECK: end_borrow %1 : $Builtin.NativeObject // id: %22
// CHECK: end_borrow %1 : $Builtin.NativeObject // id: %16
// CHECK: end_borrow %1 : $Builtin.NativeObject // id: %12
// CHECK: end_borrow %1 : $Builtin.NativeObject // id: %6
// CHECK-LABEL: Error#: 3. End Error in Function: 'bad_order_add_a_level_2'
//
// CHECK-LABEL: Error#: 7. Begin Error in Function: 'bad_order_add_a_level_2'
// CHECK: Found outside of lifetime use?!
// CHECK: Value: %5 = argument of bb2 : $Builtin.NativeObject // users: %17, %13, %9, %7
// CHECK: Consuming User: end_borrow %5 : $Builtin.NativeObject // id: %13
// CHECK: Non Consuming User: end_borrow %11 : $Builtin.NativeObject // id: %14
// CHECK: Block: bb4
// CHECK-LABEL: Error#: 7. End Error in Function: 'bad_order_add_a_level_2'
// CHECK-LABEL: Error#: 8. Begin Error in Function: 'bad_order_add_a_level_2'
// CHECK: Found over consume?!
// CHECK: Value: %5 = argument of bb2 : $Builtin.NativeObject // users: %17, %13, %9, %7
// CHECK: User: end_borrow %5 : $Builtin.NativeObject // id: %17
// CHECK: Block: bb2
// CHECK: Consuming Users:
// CHECK: end_borrow %5 : $Builtin.NativeObject // id: %17
// CHECK: end_borrow %5 : $Builtin.NativeObject // id: %13
// CHECK: end_borrow %5 : $Builtin.NativeObject // id: %7
// CHECK-LABEL: Error#: 8. End Error in Function: 'bad_order_add_a_level_2'
//
// NOTE: There are 2-3 errors here we are not pattern matching. We should add
// patterns for them so we track if they are changed.
sil [ossa] @bad_order_add_a_level_2 : $@convention(thin) (@owned Builtin.NativeObject) -> () {
bb0(%0 : @owned $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
cond_br undef, bb1, bb7
bb1:
%1a = begin_borrow %1 : $Builtin.NativeObject
br bb2(%1a : $Builtin.NativeObject)
bb2(%4 : @guaranteed $Builtin.NativeObject):
end_borrow %1 : $Builtin.NativeObject
end_borrow %4 : $Builtin.NativeObject
cond_br undef, bb3, bb5
bb3:
%4a = begin_borrow %4 : $Builtin.NativeObject
br bb4(%4a : $Builtin.NativeObject)
bb4(%9 : @guaranteed $Builtin.NativeObject):
end_borrow %1 : $Builtin.NativeObject
end_borrow %4 : $Builtin.NativeObject
end_borrow %9 : $Builtin.NativeObject
br bb6
bb5:
end_borrow %1 : $Builtin.NativeObject
end_borrow %4 : $Builtin.NativeObject
br bb6
bb6:
destroy_value %0 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
bb7:
end_borrow %1 : $Builtin.NativeObject
br bb6
}
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'owned_argument_overuse_br1'
// CHECK-NEXT: Found over consume?!
// CHECK-NEXT: Value: %0 = argument of bb0 : $Builtin.NativeObject
// CHECK-NEXT: User: destroy_value %0 : $Builtin.NativeObject
// CHECK-NEXT: Block: bb0
// CHECK: Error#: 0. End Error in Function: 'owned_argument_overuse_br1'
//
// CHECK-LABEL: Error#: 1. Begin Error in Function: 'owned_argument_overuse_br1'
// CHECK-NEXT: Error! Found a leaked owned value that was never consumed.
// CHECK-NEXT: Value: %3 = argument of bb1 : $Builtin.NativeObject
// CHECK-NOT: Block
// CHECK: Error#: 1. End Error in Function: 'owned_argument_overuse_br1'
//
// CHECK-NOT: Error#: {{[0-9][0-9]*}}. End Error in Function: 'owned_argument_overuse_br1'
sil [ossa] @owned_argument_overuse_br1 : $@convention(thin) (@owned Builtin.NativeObject) -> () {
bb0(%0 : @owned $Builtin.NativeObject):
destroy_value %0 : $Builtin.NativeObject
br bb1(%0 : $Builtin.NativeObject)
bb1(%1 : @owned $Builtin.NativeObject):
%9999 = tuple()
return %9999 : $()
}
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'owned_argument_overuse_br2'
// CHECK-NEXT: Found over consume?!
// CHECK-NEXT: Value: %0 = argument of bb0 : $Builtin.NativeObject
// CHECK-NEXT: User: destroy_value %0 : $Builtin.NativeObject
// CHECK-NEXT: Block: bb0
// CHECK-NOT: Block
// CHECK: Error#: 0. End Error in Function: 'owned_argument_overuse_br2'
//
// CHECK-NOT: Error#: {{[0-9][0-9]*}}. End Error in Function: 'owned_argument_overuse_br2'
sil [ossa] @owned_argument_overuse_br2 : $@convention(thin) (@owned Builtin.NativeObject) -> () {
bb0(%0 : @owned $Builtin.NativeObject):
destroy_value %0 : $Builtin.NativeObject
br bb1(%0 : $Builtin.NativeObject)
bb1(%1 : @owned $Builtin.NativeObject):
destroy_value %1 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
}
/////////////////////////////////////////
// Movable Guaranteed Scope Test Cases //
/////////////////////////////////////////
//
// CHECK-NOT: Error#: {{[0-9][0-9]*}}. End Error in Function: 'simple_non_postdominating_diamond_with_forwarding_uses'
sil [ossa] @simple_non_postdominating_diamond_with_forwarding_uses : $@convention(thin) (@in_guaranteed NativeObjectPair, @guaranteed NativeObjectPair) -> () {
bb0(%0 : $*NativeObjectPair, %1 : @guaranteed $NativeObjectPair):
cond_br undef, bb1, bb2
bb1:
%3 = load_borrow %0 : $*NativeObjectPair
%4 = struct_extract %3 : $NativeObjectPair, #NativeObjectPair.obj1
br bb3(%4 : $Builtin.NativeObject, %3 : $NativeObjectPair)
bb2:
%5 = begin_borrow %1 : $NativeObjectPair
%6 = struct_extract %5 : $NativeObjectPair, #NativeObjectPair.obj1
br bb3(%6 : $Builtin.NativeObject, %5 : $NativeObjectPair)
bb3(%7 : @guaranteed $Builtin.NativeObject, %8 : @guaranteed $NativeObjectPair):
end_borrow %8 : $NativeObjectPair
%9999 = tuple()
return %9999 : $()
}
sil [ossa] @simple_loop_carry_borrow_owned_arg : $@convention(thin) (@owned Builtin.NativeObject) -> () {
bb0(%0 : @owned $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
br bb1(%1 : $Builtin.NativeObject)
bb1(%2 : @guaranteed $Builtin.NativeObject):
cond_br undef, bb2, bb3
bb2:
br bb2a
bb2a:
br bb1(%2 : $Builtin.NativeObject)
bb3:
// Should error b/c destroy_value before end_borrow.
destroy_value %0 : $Builtin.NativeObject
end_borrow %2 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
}
sil [ossa] @simple_loop_carry_implicitregularusers_do_not_loop_carry : $@convention(thin) (@guaranteed Builtin.NativeObject) -> () {
bb0(%0 : @guaranteed $Builtin.NativeObject):
%1a = begin_borrow %0 : $Builtin.NativeObject
%1b = copy_value %0 : $Builtin.NativeObject
br bb1(%1a : $Builtin.NativeObject, %1b : $Builtin.NativeObject)
bb1(%2a : @guaranteed $Builtin.NativeObject, %2b : @owned $Builtin.NativeObject):
cond_br undef, bb2, bb3
bb2:
br bb2a
bb2a:
%3 = copy_value %2a : $Builtin.NativeObject
%3a = begin_borrow %3 : $Builtin.NativeObject
end_borrow %2a : $Builtin.NativeObject
destroy_value %2b : $Builtin.NativeObject
br bb1(%3a : $Builtin.NativeObject, %3 : $Builtin.NativeObject)
bb3:
end_borrow %2a : $Builtin.NativeObject
destroy_value %2b : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
}
// We should identify bb0a as consuming the value twice.
//
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'simple_loop_carry_over_consume'
// CHECK-NEXT: Found over consume?!
// CHECK-NEXT: Value: %1 = begin_borrow %0 : $Builtin.NativeObject // users: %3, %3
// CHECK-NEXT: User: br bb2(%1 : $Builtin.NativeObject, %1 : $Builtin.NativeObject) // id: %3
// CHECK-NEXT: Block: bb1
// CHECK-NEXT: Consuming Users:
// CHECK-NEXT: br bb2(%1 : $Builtin.NativeObject, %1 : $Builtin.NativeObject) // id: %3
// CHECK-NEXT: br bb2(%1 : $Builtin.NativeObject, %1 : $Builtin.NativeObject) // id: %3
// CHECK: Error#: 0. End Error in Function: 'simple_loop_carry_over_consume'
//
// CHECK-LABEL: Error#: 1. Begin Error in Function: 'simple_loop_carry_over_consume'
// CHECK: Found outside of lifetime use?!
// CHECK: Value: %4 = argument of bb2 : $Builtin.NativeObject
// CHECK: Consuming User: end_borrow %4 : $Builtin.NativeObject
// CHECK: Non Consuming User: br bb2(%5 : $Builtin.NativeObject, %8 : $Builtin.NativeObject)
// CHECK: Block: bb4
// CHECK-LABEL: Error#: 1. End Error in Function: 'simple_loop_carry_over_consume'
// Some more errors are emitted
sil [ossa] @simple_loop_carry_over_consume : $@convention(thin) (@guaranteed Builtin.NativeObject) -> () {
bb0(%0 : @guaranteed $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
br bb0a
bb0a:
br bb1(%1 : $Builtin.NativeObject, %1 : $Builtin.NativeObject)
bb1(%2 : @guaranteed $Builtin.NativeObject, %2a : @guaranteed $Builtin.NativeObject):
cond_br undef, bb2, bb3
bb2:
br bb2a
bb2a:
%3 = begin_borrow %2a : $Builtin.NativeObject
end_borrow %2 : $Builtin.NativeObject
br bb1(%2a : $Builtin.NativeObject, %3 : $Builtin.NativeObject)
bb3:
end_borrow %2a : $Builtin.NativeObject
end_borrow %2 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
}
// CHECK-NOT: Function: 'simple_loop_carry_cycle'
sil [ossa] @simple_loop_carry_cycle : $@convention(thin) (@guaranteed Builtin.NativeObject) -> () {
bb0(%0 : @guaranteed $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
br bb1(%1 : $Builtin.NativeObject)
bb1(%2 : @guaranteed $Builtin.NativeObject):
cond_br undef, bb2, bb3
bb2:
br bb2a
bb2a:
br bb1(%2 : $Builtin.NativeObject)
bb3:
end_borrow %2 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
}
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'simple_loop_carry_borrows_do_not_loop_carry'
// CHECK: Found outside of lifetime use?!
// CHECK: Value: %4 = argument of bb1 : $Builtin.NativeObject
// CHECK: Consuming User: end_borrow %4 : $Builtin.NativeObject
// CHECK: Non Consuming User: br bb1(%5 : $Builtin.NativeObject, %8 : $Builtin.NativeObject)
// CHECK: Block: bb3
// CHECK-LABEL: Error#: 0. End Error in Function: 'simple_loop_carry_borrows_do_not_loop_carry'
sil [ossa] @simple_loop_carry_borrows_do_not_loop_carry : $@convention(thin) (@guaranteed Builtin.NativeObject) -> () {
bb0(%0 : @guaranteed $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
%1a = begin_borrow %0 : $Builtin.NativeObject
br bb1(%1 : $Builtin.NativeObject, %1a : $Builtin.NativeObject)
bb1(%2 : @guaranteed $Builtin.NativeObject, %2a : @guaranteed $Builtin.NativeObject):
cond_br undef, bb2, bb3
bb2:
br bb2a
bb2a:
%3 = begin_borrow %2a : $Builtin.NativeObject
end_borrow %2 : $Builtin.NativeObject
br bb1(%2a : $Builtin.NativeObject, %3 : $Builtin.NativeObject)
bb3:
end_borrow %2a : $Builtin.NativeObject
end_borrow %2 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
}
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'simple_loop_carry_borrows_do_not_loop_carry2'
// CHECK: Found outside of lifetime use?!
// CHECK: Value: %4 = argument of bb1 : $Builtin.NativeObject // users: %11, %9
// CHECK: Consuming User: end_borrow %4 : $Builtin.NativeObject // id: %11
// CHECK: Non Consuming User: end_borrow %5 : $Builtin.NativeObject // id: %12
// CHECK: Block: bb4
// CHECK: Error#: 0. End Error in Function: 'simple_loop_carry_borrows_do_not_loop_carry2'
sil [ossa] @simple_loop_carry_borrows_do_not_loop_carry2 : $@convention(thin) (@guaranteed Builtin.NativeObject) -> () {
bb0(%0 : @guaranteed $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
%1a = begin_borrow %0 : $Builtin.NativeObject
br bb1(%1 : $Builtin.NativeObject, %1a : $Builtin.NativeObject)
bb1(%2 : @guaranteed $Builtin.NativeObject, %2a : @guaranteed $Builtin.NativeObject):
cond_br undef, bb2, bb3
bb2:
br bb2a
bb2a:
%3 = begin_borrow %2a : $Builtin.NativeObject
end_borrow %2 : $Builtin.NativeObject
br bb1(%2a : $Builtin.NativeObject, %3 : $Builtin.NativeObject)
bb3:
end_borrow %2 : $Builtin.NativeObject
end_borrow %2a : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
}
// CHECK-NOT: Function: 'simple_validate_enclosing_borrow_around_loop'
sil [ossa] @simple_validate_enclosing_borrow_around_loop : $@convention(thin) (@guaranteed Builtin.NativeObject) -> () {
bb0(%0 : @guaranteed $Builtin.NativeObject):
%1 = begin_borrow %0 : $Builtin.NativeObject
%2 = begin_borrow %1 : $Builtin.NativeObject
%3 = begin_borrow %1 : $Builtin.NativeObject
br bb1(%2 : $Builtin.NativeObject, %3 : $Builtin.NativeObject)
bb1(%4 : @guaranteed $Builtin.NativeObject, %5 : @guaranteed $Builtin.NativeObject):
cond_br undef, bb2, bb3
bb2:
br bb2a
bb2a:
br bb1(%5 : $Builtin.NativeObject, %4 : $Builtin.NativeObject)
bb3:
end_borrow %4 : $Builtin.NativeObject
end_borrow %5 : $Builtin.NativeObject
end_borrow %1 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
}
// CHECK-NOT: Function: 'simple_validate_enclosing_borrow_around_loop_2'
sil [ossa] @simple_validate_enclosing_borrow_around_loop_2 : $@convention(thin) (@guaranteed Builtin.NativeObject) -> () {
bb0(%0 : @guaranteed $Builtin.NativeObject):
%2 = begin_borrow %0 : $Builtin.NativeObject
%3 = begin_borrow %0 : $Builtin.NativeObject
br bb1(%2 : $Builtin.NativeObject, %3 : $Builtin.NativeObject)
bb1(%4 : @guaranteed $Builtin.NativeObject, %5 : @guaranteed $Builtin.NativeObject):
cond_br undef, bb2, bb3
bb2:
br bb2a
bb2a:
br bb1(%5 : $Builtin.NativeObject, %4 : $Builtin.NativeObject)
bb3:
end_borrow %4 : $Builtin.NativeObject
end_borrow %5 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
}
// CHECK-NOT: Function: 'simple_validate_enclosing_borrow_around_loop_3'
sil [ossa] @simple_validate_enclosing_borrow_around_loop_3 : $@convention(thin) (@owned Builtin.NativeObject) -> () {
bb0(%0 : @owned $Builtin.NativeObject):
%2 = begin_borrow %0 : $Builtin.NativeObject
%3 = begin_borrow %0 : $Builtin.NativeObject
br bb1(%2 : $Builtin.NativeObject, %3 : $Builtin.NativeObject)
bb1(%4 : @guaranteed $Builtin.NativeObject, %5 : @guaranteed $Builtin.NativeObject):
cond_br undef, bb2, bb3
bb2:
br bb2a
bb2a:
br bb1(%5 : $Builtin.NativeObject, %4 : $Builtin.NativeObject)
bb3:
end_borrow %4 : $Builtin.NativeObject
end_borrow %5 : $Builtin.NativeObject
destroy_value %0 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
}
|
