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Implement unused pattern bindings, continued (#6518)

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Implementation of unused pattern bindings #2022, continued.

Whereas previous PR #6460 took care of parsing, and PR #6479 prepared
the stage by using _ in some test cases, this PR has the the actual
implementation, using a simple dataflow analysis.

---------

Co-authored-by: Burak Emir <bqe@google.com>
Co-authored-by: jonmeow <jperkins@google.com>
This commit is contained in:
Burak Emir
2026-02-19 23:33:36 +00:00
committed by GitHub
co-authored by Burak Emir jonmeow
parent bea24a8bee
commit fdb188ccfd
366 changed files with 8453 additions and 7996 deletions
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toolchain/check/testdata/interop/cpp/class/access.carbon
Vendored
+102 -102
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@@ -29,8 +29,8 @@ import Cpp library "non_function_member_public.h";
fn F(s: Cpp.S) {
//@dump-sem-ir-begin
let instance_data: i32 = s.instance_data;
let static_data: i32 = Cpp.S.static_data;
let unused instance_data: i32 = s.instance_data;
let unused static_data: i32 = Cpp.S.static_data;
//@dump-sem-ir-end
}
@@ -46,8 +46,8 @@ class Derived {
fn F(d: Derived) {
//@dump-sem-ir-begin
let instance_data: i32 = d.instance_data;
let static_data: i32 = Derived.static_data;
let unused instance_data: i32 = d.instance_data;
let unused static_data: i32 = Derived.static_data;
//@dump-sem-ir-end
}
@@ -70,23 +70,23 @@ library "[[@TEST_NAME]]";
import Cpp library "non_function_member_protected.h";
fn F(c: Cpp.C) {
// CHECK:STDERR: fail_import_non_function_member_protected.carbon:[[@LINE+8]]:28: error: cannot access protected member `instance_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let instance_data: i32 = c.instance_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_protected.carbon:[[@LINE+8]]:35: error: cannot access protected member `instance_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let unused instance_data: i32 = c.instance_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_protected.carbon:[[@LINE-6]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./non_function_member_protected.h:2:7: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: class C {
// CHECK:STDERR: ^
// CHECK:STDERR:
let instance_data: i32 = c.instance_data;
// CHECK:STDERR: fail_import_non_function_member_protected.carbon:[[@LINE+7]]:26: error: cannot access protected member `static_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let static_data: i32 = Cpp.C.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_protected.carbon:[[@LINE+4]]:26: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: let static_data: i32 = Cpp.C.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
let unused instance_data: i32 = c.instance_data;
// CHECK:STDERR: fail_import_non_function_member_protected.carbon:[[@LINE+7]]:33: error: cannot access protected member `static_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let unused static_data: i32 = Cpp.C.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_protected.carbon:[[@LINE+4]]:33: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: let unused static_data: i32 = Cpp.C.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
// CHECK:STDERR:
let static_data: i32 = Cpp.C.static_data;
let unused static_data: i32 = Cpp.C.static_data;
}
// --- fail_import_non_function_member_protected_extend.carbon
@@ -100,23 +100,23 @@ class Derived {
}
fn F(d: Derived) {
// CHECK:STDERR: fail_import_non_function_member_protected_extend.carbon:[[@LINE+8]]:28: error: cannot access protected member `instance_data` of type `Derived` [ClassInvalidMemberAccess]
// CHECK:STDERR: let instance_data: i32 = d.instance_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_protected_extend.carbon:[[@LINE+8]]:35: error: cannot access protected member `instance_data` of type `Derived` [ClassInvalidMemberAccess]
// CHECK:STDERR: let unused instance_data: i32 = d.instance_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_protected_extend.carbon:[[@LINE-10]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./non_function_member_protected.h:2:7: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: class C {
// CHECK:STDERR: ^
// CHECK:STDERR:
let instance_data: i32 = d.instance_data;
// CHECK:STDERR: fail_import_non_function_member_protected_extend.carbon:[[@LINE+7]]:26: error: cannot access protected member `static_data` of type `Derived` [ClassInvalidMemberAccess]
// CHECK:STDERR: let static_data: i32 = Derived.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_protected_extend.carbon:[[@LINE+4]]:26: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: let static_data: i32 = Derived.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~
let unused instance_data: i32 = d.instance_data;
// CHECK:STDERR: fail_import_non_function_member_protected_extend.carbon:[[@LINE+7]]:33: error: cannot access protected member `static_data` of type `Derived` [ClassInvalidMemberAccess]
// CHECK:STDERR: let unused static_data: i32 = Derived.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_protected_extend.carbon:[[@LINE+4]]:33: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: let unused static_data: i32 = Derived.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
let static_data: i32 = Derived.static_data;
let unused static_data: i32 = Derived.static_data;
}
// --- import_non_function_member_protected_extend_call_in_member.carbon
@@ -129,10 +129,10 @@ class Derived {
extend base: Cpp.C;
fn F[self: Self]() {
//@dump-sem-ir-begin
let instance_data: i32 = self.instance_data;
let unqualified_static_data: i32 = static_data;
let derived_static_data: i32 = Derived.static_data;
let base_static_data: i32 = Cpp.C.static_data;
let unused instance_data: i32 = self.instance_data;
let unused unqualified_static_data: i32 = static_data;
let unused derived_static_data: i32 = Derived.static_data;
let unused base_static_data: i32 = Cpp.C.static_data;
//@dump-sem-ir-end
}
}
@@ -155,23 +155,23 @@ library "[[@TEST_NAME]]";
import Cpp library "non_function_member_private.h";
fn F(c: Cpp.C) {
// CHECK:STDERR: fail_import_non_function_member_private.carbon:[[@LINE+8]]:28: error: cannot access private member `instance_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let instance_data: i32 = c.instance_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private.carbon:[[@LINE+8]]:35: error: cannot access private member `instance_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let unused instance_data: i32 = c.instance_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private.carbon:[[@LINE-6]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./non_function_member_private.h:2:7: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: class C {
// CHECK:STDERR: ^
// CHECK:STDERR:
let instance_data: i32 = c.instance_data;
// CHECK:STDERR: fail_import_non_function_member_private.carbon:[[@LINE+7]]:26: error: cannot access private member `static_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let static_data: i32 = Cpp.C.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private.carbon:[[@LINE+4]]:26: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: let static_data: i32 = Cpp.C.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
let unused instance_data: i32 = c.instance_data;
// CHECK:STDERR: fail_import_non_function_member_private.carbon:[[@LINE+7]]:33: error: cannot access private member `static_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let unused static_data: i32 = Cpp.C.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private.carbon:[[@LINE+4]]:33: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: let unused static_data: i32 = Cpp.C.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
// CHECK:STDERR:
let static_data: i32 = Cpp.C.static_data;
let unused static_data: i32 = Cpp.C.static_data;
}
// --- fail_import_non_function_member_private_extend.carbon
@@ -183,44 +183,44 @@ import Cpp library "non_function_member_private.h";
class Derived {
extend base: Cpp.C;
fn F[self: Self]() {
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE+8]]:30: error: cannot access private member `instance_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let instance_data: i32 = self.instance_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE+8]]:37: error: cannot access private member `instance_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let unused instance_data: i32 = self.instance_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE-8]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./non_function_member_private.h:2:7: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: class C {
// CHECK:STDERR: ^
// CHECK:STDERR:
let instance_data: i32 = self.instance_data;
let unused instance_data: i32 = self.instance_data;
}
}
fn F(d: Derived) {
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE+8]]:28: error: cannot access private member `instance_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let instance_data: i32 = d.instance_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE+8]]:35: error: cannot access private member `instance_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let unused instance_data: i32 = d.instance_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE-21]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./non_function_member_private.h:2:7: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: class C {
// CHECK:STDERR: ^
// CHECK:STDERR:
let instance_data: i32 = d.instance_data;
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE+7]]:34: error: cannot access private member `static_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let derived_static_data: i32 = Derived.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE+4]]:34: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: let derived_static_data: i32 = Derived.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~
let unused instance_data: i32 = d.instance_data;
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE+7]]:41: error: cannot access private member `static_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let unused derived_static_data: i32 = Derived.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE+4]]:41: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: let unused derived_static_data: i32 = Derived.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
let derived_static_data: i32 = Derived.static_data;
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE+7]]:31: error: cannot access private member `static_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let base_static_data: i32 = Cpp.C.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE-4]]:34: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: let derived_static_data: i32 = Derived.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~
let unused derived_static_data: i32 = Derived.static_data;
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE+7]]:38: error: cannot access private member `static_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let unused base_static_data: i32 = Cpp.C.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private_extend.carbon:[[@LINE-4]]:41: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: let unused derived_static_data: i32 = Derived.static_data;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
let base_static_data: i32 = Cpp.C.static_data;
let unused base_static_data: i32 = Cpp.C.static_data;
}
// --- fail_import_non_function_member_private_extend_static_within_member_function.carbon
@@ -233,14 +233,14 @@ class Derived {
extend base: Cpp.C;
fn F() {
// TODO: `C.static_data` is private, so this should fail.
// CHECK:STDERR: fail_import_non_function_member_private_extend_static_within_member_function.carbon:[[@LINE+7]]:40: error: cannot access private member `static_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let unqualified_static_data: i32 = static_data;
// CHECK:STDERR: ^~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private_extend_static_within_member_function.carbon:[[@LINE+4]]:40: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: let unqualified_static_data: i32 = static_data;
// CHECK:STDERR: ^~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private_extend_static_within_member_function.carbon:[[@LINE+7]]:47: error: cannot access private member `static_data` of type `Cpp.C` [ClassInvalidMemberAccess]
// CHECK:STDERR: let unused unqualified_static_data: i32 = static_data;
// CHECK:STDERR: ^~~~~~~~~~~
// CHECK:STDERR: fail_import_non_function_member_private_extend_static_within_member_function.carbon:[[@LINE+4]]:47: note: declared here [ClassMemberDeclaration]
// CHECK:STDERR: let unused unqualified_static_data: i32 = static_data;
// CHECK:STDERR: ^~~~~~~~~~~
// CHECK:STDERR:
let unqualified_static_data: i32 = static_data;
let unused unqualified_static_data: i32 = static_data;
}
}
@@ -333,7 +333,7 @@ import Cpp library "function_member_protected.h";
class Derived {
extend base: Cpp.C;
fn F[self: Self]() {
fn F[unused self: Self]() {
//@dump-sem-ir-begin
static_fn();
Derived.static_fn();
@@ -1643,13 +1643,13 @@ fn Call(var instance: Cpp.PublicPrivate) {
// CHECK:STDOUT: }
// CHECK:STDOUT: %s.ref: %S = name_ref s, %s
// CHECK:STDOUT: %instance_data.ref: %S.elem = name_ref instance_data, @S.%.1 [concrete = @S.%.1]
// CHECK:STDOUT: %.loc8_29.1: ref %i32 = class_element_access %s.ref, element0
// CHECK:STDOUT: %.loc8_29.2: %i32 = acquire_value %.loc8_29.1
// CHECK:STDOUT: %.loc8_22: type = splice_block %i32.loc8 [concrete = constants.%i32] {
// CHECK:STDOUT: %.loc8_36.1: ref %i32 = class_element_access %s.ref, element0
// CHECK:STDOUT: %.loc8_36.2: %i32 = acquire_value %.loc8_36.1
// CHECK:STDOUT: %.loc8_29: type = splice_block %i32.loc8 [concrete = constants.%i32] {
// CHECK:STDOUT: %int_32.loc8: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc8: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %instance_data: %i32 = value_binding instance_data, %.loc8_29.2
// CHECK:STDOUT: %instance_data: %i32 = value_binding instance_data, %.loc8_36.2
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %static_data.patt: %pattern_type.7ce = value_binding_pattern static_data [concrete]
// CHECK:STDOUT: }
@@ -1657,12 +1657,12 @@ fn Call(var instance: Cpp.PublicPrivate) {
// CHECK:STDOUT: %S.ref.loc9: type = name_ref S, imports.%S.decl [concrete = constants.%S]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %static_data.ref: ref %i32 = name_ref static_data, imports.%static_data.var [concrete = imports.%static_data.var]
// CHECK:STDOUT: %.loc9_20: type = splice_block %i32.loc9 [concrete = constants.%i32] {
// CHECK:STDOUT: %.loc9_27: type = splice_block %i32.loc9 [concrete = constants.%i32] {
// CHECK:STDOUT: %int_32.loc9: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc9: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc9_31: %i32 = acquire_value %static_data.ref
// CHECK:STDOUT: %static_data: %i32 = value_binding static_data, %.loc9_31
// CHECK:STDOUT: %.loc9_38: %i32 = acquire_value %static_data.ref
// CHECK:STDOUT: %static_data: %i32 = value_binding static_data, %.loc9_38
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
@@ -1690,27 +1690,27 @@ fn Call(var instance: Cpp.PublicPrivate) {
// CHECK:STDOUT: }
// CHECK:STDOUT: %d.ref: %Derived = name_ref d, %d
// CHECK:STDOUT: %instance_data.ref: %S.elem = name_ref instance_data, @S.%.1 [concrete = @S.%.1]
// CHECK:STDOUT: %.loc12_29.1: ref %S = class_element_access %d.ref, element0
// CHECK:STDOUT: %.loc12_29.2: ref %S = converted %d.ref, %.loc12_29.1
// CHECK:STDOUT: %.loc12_29.3: ref %i32 = class_element_access %.loc12_29.2, element0
// CHECK:STDOUT: %.loc12_22: type = splice_block %i32.loc12 [concrete = constants.%i32] {
// CHECK:STDOUT: %.loc12_36.1: ref %S = class_element_access %d.ref, element0
// CHECK:STDOUT: %.loc12_36.2: ref %S = converted %d.ref, %.loc12_36.1
// CHECK:STDOUT: %.loc12_36.3: ref %i32 = class_element_access %.loc12_36.2, element0
// CHECK:STDOUT: %.loc12_29: type = splice_block %i32.loc12 [concrete = constants.%i32] {
// CHECK:STDOUT: %int_32.loc12: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc12: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc12_29.4: %i32 = acquire_value %.loc12_29.3
// CHECK:STDOUT: %instance_data: %i32 = value_binding instance_data, %.loc12_29.4
// CHECK:STDOUT: %.loc12_36.4: %i32 = acquire_value %.loc12_36.3
// CHECK:STDOUT: %instance_data: %i32 = value_binding instance_data, %.loc12_36.4
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %static_data.patt: %pattern_type.7ce = value_binding_pattern static_data [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Derived.ref.loc13: type = name_ref Derived, file.%Derived.decl [concrete = constants.%Derived]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %static_data.ref: ref %i32 = name_ref static_data, imports.%static_data.var [concrete = imports.%static_data.var]
// CHECK:STDOUT: %.loc13_20: type = splice_block %i32.loc13 [concrete = constants.%i32] {
// CHECK:STDOUT: %.loc13_27: type = splice_block %i32.loc13 [concrete = constants.%i32] {
// CHECK:STDOUT: %int_32.loc13: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc13: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc13_33: %i32 = acquire_value %static_data.ref
// CHECK:STDOUT: %static_data: %i32 = value_binding static_data, %.loc13_33
// CHECK:STDOUT: %.loc13_40: %i32 = acquire_value %static_data.ref
// CHECK:STDOUT: %static_data: %i32 = value_binding static_data, %.loc13_40
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
@@ -1757,49 +1757,49 @@ fn Call(var instance: Cpp.PublicPrivate) {
// CHECK:STDOUT: }
// CHECK:STDOUT: %self.ref: %Derived = name_ref self, %self
// CHECK:STDOUT: %instance_data.ref: %C.elem = name_ref instance_data, @C.%.1 [concrete = @C.%.1]
// CHECK:STDOUT: %.loc10_34.1: ref %C = class_element_access %self.ref, element0
// CHECK:STDOUT: %.loc10_34.2: ref %C = converted %self.ref, %.loc10_34.1
// CHECK:STDOUT: %.loc10_34.3: ref %i32 = class_element_access %.loc10_34.2, element0
// CHECK:STDOUT: %.loc10_24: type = splice_block %i32.loc10 [concrete = constants.%i32] {
// CHECK:STDOUT: %.loc10_41.1: ref %C = class_element_access %self.ref, element0
// CHECK:STDOUT: %.loc10_41.2: ref %C = converted %self.ref, %.loc10_41.1
// CHECK:STDOUT: %.loc10_41.3: ref %i32 = class_element_access %.loc10_41.2, element0
// CHECK:STDOUT: %.loc10_31: type = splice_block %i32.loc10 [concrete = constants.%i32] {
// CHECK:STDOUT: %int_32.loc10: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc10: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc10_34.4: %i32 = acquire_value %.loc10_34.3
// CHECK:STDOUT: %instance_data: %i32 = value_binding instance_data, %.loc10_34.4
// CHECK:STDOUT: %.loc10_41.4: %i32 = acquire_value %.loc10_41.3
// CHECK:STDOUT: %instance_data: %i32 = value_binding instance_data, %.loc10_41.4
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %unqualified_static_data.patt: %pattern_type.7ce = value_binding_pattern unqualified_static_data [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %static_data.ref.loc11: ref %i32 = name_ref static_data, imports.%static_data.var [concrete = imports.%static_data.var]
// CHECK:STDOUT: %.loc11_34: type = splice_block %i32.loc11 [concrete = constants.%i32] {
// CHECK:STDOUT: %.loc11_41: type = splice_block %i32.loc11 [concrete = constants.%i32] {
// CHECK:STDOUT: %int_32.loc11: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc11: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc11_40: %i32 = acquire_value %static_data.ref.loc11
// CHECK:STDOUT: %unqualified_static_data: %i32 = value_binding unqualified_static_data, %.loc11_40
// CHECK:STDOUT: %.loc11_47: %i32 = acquire_value %static_data.ref.loc11
// CHECK:STDOUT: %unqualified_static_data: %i32 = value_binding unqualified_static_data, %.loc11_47
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %derived_static_data.patt: %pattern_type.7ce = value_binding_pattern derived_static_data [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Derived.ref: type = name_ref Derived, file.%Derived.decl [concrete = constants.%Derived]
// CHECK:STDOUT: %static_data.ref.loc12: ref %i32 = name_ref static_data, imports.%static_data.var [concrete = imports.%static_data.var]
// CHECK:STDOUT: %.loc12_30: type = splice_block %i32.loc12 [concrete = constants.%i32] {
// CHECK:STDOUT: %.loc12_37: type = splice_block %i32.loc12 [concrete = constants.%i32] {
// CHECK:STDOUT: %int_32.loc12: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc12: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc12_43: %i32 = acquire_value %static_data.ref.loc12
// CHECK:STDOUT: %derived_static_data: %i32 = value_binding derived_static_data, %.loc12_43
// CHECK:STDOUT: %.loc12_50: %i32 = acquire_value %static_data.ref.loc12
// CHECK:STDOUT: %derived_static_data: %i32 = value_binding derived_static_data, %.loc12_50
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %base_static_data.patt: %pattern_type.7ce = value_binding_pattern base_static_data [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %C.ref: type = name_ref C, imports.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %static_data.ref.loc13: ref %i32 = name_ref static_data, imports.%static_data.var [concrete = imports.%static_data.var]
// CHECK:STDOUT: %.loc13_27: type = splice_block %i32.loc13 [concrete = constants.%i32] {
// CHECK:STDOUT: %.loc13_34: type = splice_block %i32.loc13 [concrete = constants.%i32] {
// CHECK:STDOUT: %int_32.loc13: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc13: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc13_38: %i32 = acquire_value %static_data.ref.loc13
// CHECK:STDOUT: %base_static_data: %i32 = value_binding base_static_data, %.loc13_38
// CHECK:STDOUT: %.loc13_45: %i32 = acquire_value %static_data.ref.loc13
// CHECK:STDOUT: %base_static_data: %i32 = value_binding base_static_data, %.loc13_45
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: