| ... | ... | @@ -1279,6 +1279,66 @@ pub const DeclGen = struct { |
| 1279 | 1279 | } |
| 1280 | 1280 | return llvm_union_ty.constNamedStruct(&fields, fields.len); |
| 1281 | 1281 | }, |
| 1282 | .Vector => switch (tv.val.tag()) { |
| 1283 | .bytes => { |
| 1284 | // Note, sentinel is not stored even if the type has a sentinel. |
| 1285 | const bytes = tv.val.castTag(.bytes).?.data; |
| 1286 | const vector_len = tv.ty.arrayLen(); |
| 1287 | assert(vector_len == bytes.len or vector_len + 1 == bytes.len); |
| 1288 | |
| 1289 | const elem_ty = tv.ty.elemType(); |
| 1290 | const llvm_elems = try self.gpa.alloc(*const llvm.Value, vector_len); |
| 1291 | defer self.gpa.free(llvm_elems); |
| 1292 | for (llvm_elems) |*elem, i| { |
| 1293 | var byte_payload: Value.Payload.U64 = .{ |
| 1294 | .base = .{ .tag = .int_u64 }, |
| 1295 | .data = bytes[i], |
| 1296 | }; |
| 1297 | |
| 1298 | elem.* = try self.genTypedValue(.{ |
| 1299 | .ty = elem_ty, |
| 1300 | .val = Value.initPayload(&byte_payload.base), |
| 1301 | }); |
| 1302 | } |
| 1303 | return llvm.constVector( |
| 1304 | llvm_elems.ptr, |
| 1305 | @intCast(c_uint, llvm_elems.len), |
| 1306 | ); |
| 1307 | }, |
| 1308 | .array => { |
| 1309 | // Note, sentinel is not stored even if the type has a sentinel. |
| 1310 | // The value includes the sentinel in those cases. |
| 1311 | const elem_vals = tv.val.castTag(.array).?.data; |
| 1312 | const vector_len = tv.ty.arrayLen(); |
| 1313 | assert(vector_len == elem_vals.len or vector_len + 1 == elem_vals.len); |
| 1314 | const elem_ty = tv.ty.elemType(); |
| 1315 | const llvm_elems = try self.gpa.alloc(*const llvm.Value, vector_len); |
| 1316 | defer self.gpa.free(llvm_elems); |
| 1317 | for (llvm_elems) |*elem, i| { |
| 1318 | elem.* = try self.genTypedValue(.{ .ty = elem_ty, .val = elem_vals[i] }); |
| 1319 | } |
| 1320 | return llvm.constVector( |
| 1321 | llvm_elems.ptr, |
| 1322 | @intCast(c_uint, llvm_elems.len), |
| 1323 | ); |
| 1324 | }, |
| 1325 | .repeated => { |
| 1326 | // Note, sentinel is not stored even if the type has a sentinel. |
| 1327 | const val = tv.val.castTag(.repeated).?.data; |
| 1328 | const elem_ty = tv.ty.elemType(); |
| 1329 | const len = tv.ty.arrayLen(); |
| 1330 | const llvm_elems = try self.gpa.alloc(*const llvm.Value, len); |
| 1331 | defer self.gpa.free(llvm_elems); |
| 1332 | for (llvm_elems) |*elem| { |
| 1333 | elem.* = try self.genTypedValue(.{ .ty = elem_ty, .val = val }); |
| 1334 | } |
| 1335 | return llvm.constVector( |
| 1336 | llvm_elems.ptr, |
| 1337 | @intCast(c_uint, llvm_elems.len), |
| 1338 | ); |
| 1339 | }, |
| 1340 | else => unreachable, |
| 1341 | }, |
| 1282 | 1342 | |
| 1283 | 1343 | .ComptimeInt => unreachable, |
| 1284 | 1344 | .ComptimeFloat => unreachable, |
| ... | ... | @@ -1293,7 +1353,6 @@ pub const DeclGen = struct { |
| 1293 | 1353 | |
| 1294 | 1354 | .Frame, |
| 1295 | 1355 | .AnyFrame, |
| 1296 | | .Vector, |
| 1297 | 1356 | => return self.todo("implement const of type '{}'", .{tv.ty}), |
| 1298 | 1357 | } |
| 1299 | 1358 | } |
Robin Voetter <robin@voetter.nl> 2021-10-16 19:51:39+02:00