Merge pull request #17215 from kcbanner/read_from_memory_union

sema: add support for unions in readFromMemory and writeToMemory
This commit is contained in:
Veikka Tuominen
2023-09-26 11:16:03 +03:00
committed by GitHub
9 changed files with 256 additions and 81 deletions

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@@ -5825,7 +5825,7 @@ pub fn markReferencedDeclsAlive(mod: *Module, val: Value) Allocator.Error!void {
.aggregate => |aggregate| for (aggregate.storage.values()) |elem|
try mod.markReferencedDeclsAlive(elem.toValue()),
.un => |un| {
try mod.markReferencedDeclsAlive(un.tag.toValue());
if (un.tag != .none) try mod.markReferencedDeclsAlive(un.tag.toValue());
try mod.markReferencedDeclsAlive(un.val.toValue());
},
else => {},
@@ -6609,6 +6609,7 @@ pub fn unionFieldNormalAlignment(mod: *Module, u: InternPool.UnionType, field_in
pub fn unionTagFieldIndex(mod: *Module, u: InternPool.UnionType, enum_tag: Value) ?u32 {
const ip = &mod.intern_pool;
if (enum_tag.toIntern() == .none) return null;
assert(ip.typeOf(enum_tag.toIntern()) == u.enum_tag_ty);
const enum_type = ip.indexToKey(u.enum_tag_ty).enum_type;
return enum_type.tagValueIndex(ip, enum_tag.toIntern());