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Lower CppOverloadSetValue (#6101)

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Following up on comments from
[#5891](https://github.com/carbon-language/carbon-lang/pull/5891) ([
1](https://github.com/carbon-language/carbon-lang/pull/5891#discussion_r2317244981),
[2](https://github.com/carbon-language/carbon-lang/pull/5891#discussion_r2317266756)).

Lowering `CppOverloadSetValue` as an empty struct value, using
`context.GetLiteralAsValue()`. Also changed its constant kind to
`InstConstantKind::Always`.

Part of https://github.com/carbon-language/carbon-lang/issues/5915
This commit is contained in:
Ivana Ivanovska
2025-10-01 16:25:05 +00:00
committed by GitHub
parent 4a6376cf59
commit a24598f069
40 changed files with 838 additions and 698 deletions
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toolchain/check/testdata/interop/cpp/enum/anonymous.carbon
Vendored
+9 -9
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@@ -44,7 +44,7 @@ fn G() {
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT: %.557: type = cpp_overload_set_type @C.C [concrete]
// CHECK:STDOUT: %empty_struct.56a: %.557 = struct_value () [concrete]
// CHECK:STDOUT: %.4a9: %.557 = cpp_overload_set_value @C.C [concrete]
// CHECK:STDOUT: %.4f0: type = class_type @.1 [concrete]
// CHECK:STDOUT: %int_1.81a: %.4f0 = int_value 1 [concrete]
// CHECK:STDOUT: %ptr.793: type = ptr_type %.4f0 [concrete]
@@ -52,12 +52,12 @@ fn G() {
// CHECK:STDOUT: %F__carbon_thunk.0cd6a8.1: %F__carbon_thunk.type.eda1ac.1 = struct_value () [concrete]
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: %.d40: type = cpp_overload_set_type @C__carbon_thunk [concrete]
// CHECK:STDOUT: %empty_struct.e73: %.d40 = struct_value () [concrete]
// CHECK:STDOUT: %.40b: %.d40 = cpp_overload_set_value @C__carbon_thunk [concrete]
// CHECK:STDOUT: %ptr.d9e: type = ptr_type %C [concrete]
// CHECK:STDOUT: %C__carbon_thunk.type: type = fn_type @C__carbon_thunk [concrete]
// CHECK:STDOUT: %C__carbon_thunk: %C__carbon_thunk.type = struct_value () [concrete]
// CHECK:STDOUT: %.9a3: type = cpp_overload_set_type @C.F [concrete]
// CHECK:STDOUT: %empty_struct.acc: %.9a3 = struct_value () [concrete]
// CHECK:STDOUT: %.951: %.9a3 = cpp_overload_set_value @C.F [concrete]
// CHECK:STDOUT: %.bb7: type = class_type @.2 [concrete]
// CHECK:STDOUT: %int_1.1d6: %.bb7 = int_value 1 [concrete]
// CHECK:STDOUT: %ptr.73d: type = ptr_type %.bb7 [concrete]
@@ -82,7 +82,7 @@ fn G() {
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %.4a9: %.557 = cpp_overload_set_value @C.C [concrete = constants.%empty_struct.56a]
// CHECK:STDOUT: %.4a9: %.557 = cpp_overload_set_value @C.C [concrete = constants.%.4a9]
// CHECK:STDOUT: %int_1.81a: %.4f0 = int_value 1 [concrete = constants.%int_1.81a]
// CHECK:STDOUT: %F__carbon_thunk.decl.e1b8ec.1: %F__carbon_thunk.type.eda1ac.1 = fn_decl @F__carbon_thunk.1 [concrete = constants.%F__carbon_thunk.0cd6a8.1] {
// CHECK:STDOUT: <elided>
@@ -90,13 +90,13 @@ fn G() {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT: %.40b: %.d40 = cpp_overload_set_value @C__carbon_thunk [concrete = constants.%empty_struct.e73]
// CHECK:STDOUT: %.40b: %.d40 = cpp_overload_set_value @C__carbon_thunk [concrete = constants.%.40b]
// CHECK:STDOUT: %C__carbon_thunk.decl: %C__carbon_thunk.type = fn_decl @C__carbon_thunk [concrete = constants.%C__carbon_thunk] {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: } {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: %.951: %.9a3 = cpp_overload_set_value @C.F [concrete = constants.%empty_struct.acc]
// CHECK:STDOUT: %.951: %.9a3 = cpp_overload_set_value @C.F [concrete = constants.%.951]
// CHECK:STDOUT: %int_1.1d6: %.bb7 = int_value 1 [concrete = constants.%int_1.1d6]
// CHECK:STDOUT: %F__carbon_thunk.decl.e1b8ec.2: %F__carbon_thunk.type.eda1ac.2 = fn_decl @F__carbon_thunk.2 [concrete = constants.%F__carbon_thunk.0cd6a8.2] {
// CHECK:STDOUT: <elided>
@@ -112,7 +112,7 @@ fn G() {
// CHECK:STDOUT: fn @G() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Cpp.ref.loc8_3: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %F.ref.loc8: %.557 = name_ref F, imports.%.4a9 [concrete = constants.%empty_struct.56a]
// CHECK:STDOUT: %F.ref.loc8: %.557 = name_ref F, imports.%.4a9 [concrete = constants.%.4a9]
// CHECK:STDOUT: %Cpp.ref.loc8_9: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %b.ref: %.4f0 = name_ref b, imports.%int_1.81a [concrete = constants.%int_1.81a]
// CHECK:STDOUT: %.loc8_12.1: ref %.4f0 = temporary_storage
@@ -121,13 +121,13 @@ fn G() {
// CHECK:STDOUT: %F__carbon_thunk.call.loc8: init %empty_tuple.type = call imports.%F__carbon_thunk.decl.e1b8ec.1(%addr.loc8_14)
// CHECK:STDOUT: %Cpp.ref.loc10_3: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %C.ref.loc10_6: type = name_ref C, imports.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %C.ref.loc10_8: %.d40 = name_ref C, imports.%.40b [concrete = constants.%empty_struct.e73]
// CHECK:STDOUT: %C.ref.loc10_8: %.d40 = name_ref C, imports.%.40b [concrete = constants.%.40b]
// CHECK:STDOUT: %.loc10_11.1: ref %C = temporary_storage
// CHECK:STDOUT: %addr.loc10_11.1: %ptr.d9e = addr_of %.loc10_11.1
// CHECK:STDOUT: %C__carbon_thunk.call: init %empty_tuple.type = call imports.%C__carbon_thunk.decl(%addr.loc10_11.1)
// CHECK:STDOUT: %.loc10_11.2: init %C = in_place_init %C__carbon_thunk.call, %.loc10_11.1
// CHECK:STDOUT: %.loc10_11.3: ref %C = temporary %.loc10_11.1, %.loc10_11.2
// CHECK:STDOUT: %F.ref.loc10: %.9a3 = name_ref F, imports.%.951 [concrete = constants.%empty_struct.acc]
// CHECK:STDOUT: %F.ref.loc10: %.9a3 = name_ref F, imports.%.951 [concrete = constants.%.951]
// CHECK:STDOUT: %bound_method.loc10_12: <bound method> = bound_method %.loc10_11.3, %F.ref.loc10
// CHECK:STDOUT: %Cpp.ref.loc10_15: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %C.ref.loc10_18: type = name_ref C, imports.%C.decl [concrete = constants.%C]