{-# OPTIONS_GHC -fno-ignore-interface-pragmas #-} -- This test breaks the linear register allocator when compiled the -- flags -fnew-codegen, -fPIC and -dynamic, running out of stack -- slots. You actually don't need 500 elements; 32-bit fails -- with only about 260 or so. Works for stage1 too! It's a bit touchy -- about optimization flags; if you specify -O or -O0 in OPTIONS_GHC -- the bug goes away. Shows up in GHC 7.0.3. -- -- The -fno-ignore-interface-pragmas flag is pretty important! (Though I -- don't quite know why yet.) Gigantic arrays like this show up in -- generated code, in particular Parser.hs from Happy in GHC. module MassiveArray where import Data.Array f = array (0, 499) $ [ (0, 0), (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6), (7, 7), (8, 8), (9, 9), (10, 10), (11, 11), (12, 12), (13, 13), (14, 14), (15, 15), (16, 16), (17, 17), (18, 18), (19, 19), (20, 20), (21, 21), (22, 22), (23, 23), (24, 24), (25, 25), (26, 26), (27, 27), (28, 28), (29, 29), (30, 30), (31, 31), (32, 32), (33, 33), (34, 34), (35, 35), (36, 36), (37, 37), (38, 38), (39, 39), (40, 40), (41, 41), (42, 42), (43, 43), (44, 44), (45, 45), (46, 46), (47, 47), (48, 48), (49, 49), (50, 50), (51, 51), (52, 52), (53, 53), (54, 54), (55, 55), (56, 56), (57, 57), (58, 58), (59, 59), (60, 60), (61, 61), (62, 62), (63, 63), (64, 64), (65, 65), (66, 66), (67, 67), (68, 68), (69, 69), (70, 70), (71, 71), (72, 72), (73, 73), (74, 74), (75, 75), (76, 76), (77, 77), (78, 78), (79, 79), (80, 80), (81, 81), (82, 82), (83, 83), (84, 84), (85, 85), (86, 86), (87, 87), (88, 88), (89, 89), (90, 90), (91, 91), (92, 92), (93, 93), (94, 94), (95, 95), (96, 96), (97, 97), (98, 98), (99, 99), (100, 100), (101, 101), (102, 102), (103, 103), (104, 104), (105, 105), (106, 106), (107, 107), (108, 108), (109, 109), (110, 110), (111, 111), (112, 112), (113, 113), (114, 114), (115, 115), (116, 116), (117, 117), (118, 118), (119, 119), (120, 120), (121, 121), (122, 122), (123, 123), (124, 124), (125, 125), (126, 126), (127, 127), (128, 128), (129, 129), (130, 130), (131, 131), (132, 132), (133, 133), (134, 134), (135, 135), (136, 136), (137, 137), (138, 138), (139, 139), (140, 140), (141, 141), (142, 142), (143, 143), (144, 144), (145, 145), (146, 146), (147, 147), (148, 148), (149, 149), (150, 150), (151, 151), (152, 152), (153, 153), (154, 154), (155, 155), (156, 156), (157, 157), (158, 158), (159, 159), (160, 160), (161, 161), (162, 162), (163, 163), (164, 164), (165, 165), (166, 166), (167, 167), (168, 168), (169, 169), (170, 170), (171, 171), (172, 172), (173, 173), (174, 174), (175, 175), (176, 176), (177, 177), (178, 178), (179, 179), (180, 180), (181, 181), (182, 182), (183, 183), (184, 184), (185, 185), (186, 186), (187, 187), (188, 188), (189, 189), (190, 190), (191, 191), (192, 192), (193, 193), (194, 194), (195, 195), (196, 196), (197, 197), (198, 198), (199, 199), (200, 200), (201, 201), (202, 202), (203, 203), (204, 204), (205, 205), (206, 206), (207, 207), (208, 208), (209, 209), (210, 210), (211, 211), (212, 212), (213, 213), (214, 214), (215, 215), (216, 216), (217, 217), (218, 218), (219, 219), (220, 220), (221, 221), (222, 222), (223, 223), (224, 224), (225, 225), (226, 226), (227, 227), (228, 228), (229, 229), (230, 230), (231, 231), (232, 232), (233, 233), (234, 234), (235, 235), (236, 236), (237, 237), (238, 238), (239, 239), (240, 240), (241, 241), (242, 242), (243, 243), (244, 244), (245, 245), (246, 246), (247, 247), (248, 248), (249, 249), (250, 250), (251, 251), (252, 252), (253, 253), (254, 254), (255, 255), (256, 256), (257, 257), (258, 258), (259, 259), (260, 260), (261, 261), (262, 262), (263, 263), (264, 264), (265, 265), (266, 266), (267, 267), (268, 268), (269, 269), (270, 270), (271, 271), (272, 272), (273, 273), (274, 274), (275, 275), (276, 276), (277, 277), (278, 278), (279, 279), (280, 280), (281, 281), (282, 282), (283, 283), (284, 284), (285, 285), (286, 286), (287, 287), (288, 288), (289, 289), (290, 290), (291, 291), (292, 292), (293, 293), (294, 294), (295, 295), (296, 296), (297, 297), (298, 298), (299, 299), (300, 300), (301, 301), (302, 302), (303, 303), (304, 304), (305, 305), (306, 306), (307, 307), (308, 308), (309, 309), (310, 310), (311, 311), (312, 312), (313, 313), (314, 314), (315, 315), (316, 316), (317, 317), (318, 318), (319, 319), (320, 320), (321, 321), (322, 322), (323, 323), (324, 324), (325, 325), (326, 326), (327, 327), (328, 328), (329, 329), (330, 330), (331, 331), (332, 332), (333, 333), (334, 334), (335, 335), (336, 336), (337, 337), (338, 338), (339, 339), (340, 340), (341, 341), (342, 342), (343, 343), (344, 344), (345, 345), (346, 346), (347, 347), (348, 348), (349, 349), (350, 350), (351, 351), (352, 352), (353, 353), (354, 354), (355, 355), (356, 356), (357, 357), (358, 358), (359, 359), (360, 360), (361, 361), (362, 362), (363, 363), (364, 364), (365, 365), (366, 366), (367, 367), (368, 368), (369, 369), (370, 370), (371, 371), (372, 372), (373, 373), (374, 374), (375, 375), (376, 376), (377, 377), (378, 378), (379, 379), (380, 380), (381, 381), (382, 382), (383, 383), (384, 384), (385, 385), (386, 386), (387, 387), (388, 388), (389, 389), (390, 390), (391, 391), (392, 392), (393, 393), (394, 394), (395, 395), (396, 396), (397, 397), (398, 398), (399, 399), (400, 400), (401, 401), (402, 402), (403, 403), (404, 404), (405, 405), (406, 406), (407, 407), (408, 408), (409, 409), (410, 410), (411, 411), (412, 412), (413, 413), (414, 414), (415, 415), (416, 416), (417, 417), (418, 418), (419, 419), (420, 420), (421, 421), (422, 422), (423, 423), (424, 424), (425, 425), (426, 426), (427, 427), (428, 428), (429, 429), (430, 430), (431, 431), (432, 432), (433, 433), (434, 434), (435, 435), (436, 436), (437, 437), (438, 438), (439, 439), (440, 440), (441, 441), (442, 442), (443, 443), (444, 444), (445, 445), (446, 446), (447, 447), (448, 448), (449, 449), (450, 450), (451, 451), (452, 452), (453, 453), (454, 454), (455, 455), (456, 456), (457, 457), (458, 458), (459, 459), (460, 460), (461, 461), (462, 462), (463, 463), (464, 464), (465, 465), (466, 466), (467, 467), (468, 468), (469, 469), (470, 470), (471, 471), (472, 472), (473, 473), (474, 474), (475, 475), (476, 476), (477, 477), (478, 478), (479, 479), (480, 480), (481, 481), (482, 482), (483, 483), (484, 484), (485, 485), (486, 486), (487, 487), (488, 488), (489, 489), (490, 490), (491, 491), (492, 492), (493, 493), (494, 494), (495, 495), (496, 496), (497, 497), (498, 498), (499, 499) ]