diff options
Diffstat (limited to 'src/Module.zig')
| -rw-r--r-- | src/Module.zig | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/Module.zig b/src/Module.zig index 7c18f8f65a..bc6d0d4a6c 100644 --- a/src/Module.zig +++ b/src/Module.zig @@ -1198,6 +1198,30 @@ pub const Scope = struct { gz.astgen.extra.appendSliceAssumeCapacity(gz.instructions.items); } + /// Same as `setBlockBody` except we don't copy instructions which are + /// `store_to_block_ptr` instructions with lhs set to .none. + pub fn setBlockBodyEliding(gz: GenZir, inst: Zir.Inst.Index) !void { + const gpa = gz.astgen.gpa; + try gz.astgen.extra.ensureCapacity(gpa, gz.astgen.extra.items.len + + @typeInfo(Zir.Inst.Block).Struct.fields.len + gz.instructions.items.len); + const zir_datas = gz.astgen.instructions.items(.data); + const zir_tags = gz.astgen.instructions.items(.tag); + const block_pl_index = gz.astgen.addExtraAssumeCapacity(Zir.Inst.Block{ + .body_len = @intCast(u32, gz.instructions.items.len), + }); + zir_datas[inst].pl_node.payload_index = block_pl_index; + for (gz.instructions.items) |sub_inst| { + if (zir_tags[sub_inst] == .store_to_block_ptr and + zir_datas[sub_inst].bin.lhs == .none) + { + // Decrement `body_len`. + gz.astgen.extra.items[block_pl_index] -= 1; + continue; + } + gz.astgen.extra.appendAssumeCapacity(sub_inst); + } + } + pub fn identAsString(gz: *GenZir, ident_token: ast.TokenIndex) !u32 { const astgen = gz.astgen; const gpa = astgen.gpa; @@ -1445,6 +1469,30 @@ pub const Scope = struct { return gz.indexToRef(new_index); } + pub fn addExtendedPayload( + gz: *GenZir, + opcode: Zir.Inst.Extended, + extra: anytype, + ) !Zir.Inst.Ref { + const gpa = gz.astgen.gpa; + + try gz.instructions.ensureCapacity(gpa, gz.instructions.items.len + 1); + try gz.astgen.instructions.ensureCapacity(gpa, gz.astgen.instructions.len + 1); + + const payload_index = try gz.astgen.addExtra(extra); + const new_index = @intCast(Zir.Inst.Index, gz.astgen.instructions.len); + gz.astgen.instructions.appendAssumeCapacity(.{ + .tag = .extended, + .data = .{ .extended = .{ + .opcode = opcode, + .small = undefined, + .operand = payload_index, + } }, + }); + gz.instructions.appendAssumeCapacity(new_index); + return gz.indexToRef(new_index); + } + pub fn addArrayTypeSentinel( gz: *GenZir, len: Zir.Inst.Ref, |