/* Subroutines used for code generation on TI MSP430 processors.
- Copyright (C) 2012-2014 Free Software Foundation, Inc.
+ Copyright (C) 2012-2019 Free Software Foundation, Inc.
Contributed by Red Hat.
This file is part of GCC.
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
+#define IN_TARGET_CODE 1
+
#include "config.h"
#include "system.h"
#include "coretypes.h"
-#include "tm.h"
+#include "backend.h"
+#include "target.h"
+#include "rtl.h"
#include "tree.h"
+#include "stringpool.h"
+#include "attribs.h"
+#include "gimple-expr.h"
+#include "df.h"
+#include "memmodel.h"
+#include "tm_p.h"
+#include "regs.h"
+#include "emit-rtl.h"
+#include "diagnostic-core.h"
+#include "fold-const.h"
#include "stor-layout.h"
#include "calls.h"
-#include "rtl.h"
-#include "regs.h"
-#include "hard-reg-set.h"
-#include "insn-config.h"
-#include "conditions.h"
#include "output.h"
-#include "insn-attr.h"
-#include "flags.h"
-#include "function.h"
+#include "explow.h"
#include "expr.h"
-#include "optabs.h"
-#include "libfuncs.h"
-#include "recog.h"
-#include "diagnostic-core.h"
-#include "toplev.h"
-#include "reload.h"
-#include "df.h"
-#include "ggc.h"
-#include "tm_p.h"
-#include "debug.h"
-#include "target.h"
-#include "target-def.h"
#include "langhooks.h"
-#include "msp430-protos.h"
-#include "dumpfile.h"
-#include "opts.h"
+#include "builtins.h"
+#include "intl.h"
+
+/* This file should be included last. */
+#include "target-def.h"
\f
static void msp430_compute_frame_info (void);
{
struct machine_function *m;
- m = ggc_alloc_cleared_machine_function ();
+ m = ggc_cleared_alloc<machine_function> ();
return m;
}
#undef TARGET_OPTION_OVERRIDE
#define TARGET_OPTION_OVERRIDE msp430_option_override
-static const char * msp430_mcu_names [] =
-{
-"msp430afe221", "msp430afe222", "msp430afe223", "msp430afe231",
-"msp430afe232", "msp430afe233", "msp430afe251", "msp430afe252",
-"msp430afe253", "msp430c091", "msp430c092", "msp430c111",
-"msp430c1111", "msp430c112", "msp430c1121", "msp430c1331",
-"msp430c1351", "msp430c311s", "msp430c312", "msp430c313",
-"msp430c314", "msp430c315", "msp430c323", "msp430c325",
-"msp430c336", "msp430c337", "msp430c412", "msp430c413",
-"msp430e112", "msp430e313", "msp430e315", "msp430e325",
-"msp430e337", "msp430f110", "msp430f1101", "msp430f1101a",
-"msp430f1111", "msp430f1111a", "msp430f112", "msp430f1121",
-"msp430f1121a", "msp430f1122", "msp430f1132", "msp430f122",
-"msp430f1222", "msp430f123", "msp430f1232", "msp430f133",
-"msp430f135", "msp430f147", "msp430f1471", "msp430f148",
-"msp430f1481", "msp430f149", "msp430f1491", "msp430f155",
-"msp430f156", "msp430f157", "msp430f1610", "msp430f1611",
-"msp430f1612", "msp430f167", "msp430f168", "msp430f169",
-"msp430f2001", "msp430f2002", "msp430f2003", "msp430f2011",
-"msp430f2012", "msp430f2013", "msp430f2101", "msp430f2111",
-"msp430f2112", "msp430f2121", "msp430f2122", "msp430f2131",
-"msp430f2132", "msp430f2232", "msp430f2234", "msp430f2252",
-"msp430f2254", "msp430f2272", "msp430f2274", "msp430f233",
-"msp430f2330", "msp430f235", "msp430f2350", "msp430f2370",
-"msp430f2410", "msp430f247", "msp430f2471", "msp430f248",
-"msp430f2481", "msp430f249", "msp430f2491", "msp430f412",
-"msp430f413", "msp430f4132", "msp430f415", "msp430f4152",
-"msp430f417", "msp430f423", "msp430f423a", "msp430f425",
-"msp430f4250", "msp430f425a", "msp430f4260", "msp430f427",
-"msp430f4270", "msp430f427a", "msp430f435", "msp430f4351",
-"msp430f436", "msp430f4361", "msp430f437", "msp430f4371",
-"msp430f438", "msp430f439", "msp430f447", "msp430f448",
-"msp430f4481", "msp430f449", "msp430f4491", "msp430f477",
-"msp430f478", "msp430f4783", "msp430f4784", "msp430f479",
-"msp430f4793", "msp430f4794", "msp430fe423", "msp430fe4232",
-"msp430fe423a", "msp430fe4242", "msp430fe425", "msp430fe4252",
-"msp430fe425a", "msp430fe427", "msp430fe4272", "msp430fe427a",
-"msp430fg4250", "msp430fg4260", "msp430fg4270", "msp430fg437",
-"msp430fg438", "msp430fg439", "msp430fg477", "msp430fg478",
-"msp430fg479", "msp430fw423", "msp430fw425", "msp430fw427",
-"msp430fw428", "msp430fw429", "msp430g2001", "msp430g2101",
-"msp430g2102", "msp430g2111", "msp430g2112", "msp430g2113",
-"msp430g2121", "msp430g2131", "msp430g2132", "msp430g2152",
-"msp430g2153", "msp430g2201", "msp430g2202", "msp430g2203",
-"msp430g2210", "msp430g2211", "msp430g2212", "msp430g2213",
-"msp430g2221", "msp430g2230", "msp430g2231", "msp430g2232",
-"msp430g2233", "msp430g2252", "msp430g2253", "msp430g2302",
-"msp430g2303", "msp430g2312", "msp430g2313", "msp430g2332",
-"msp430g2333", "msp430g2352", "msp430g2353", "msp430g2402",
-"msp430g2403", "msp430g2412", "msp430g2413", "msp430g2432",
-"msp430g2433", "msp430g2444", "msp430g2452", "msp430g2453",
-"msp430g2513", "msp430g2533", "msp430g2544", "msp430g2553",
-"msp430g2744", "msp430g2755", "msp430g2855", "msp430g2955",
-"msp430i2020", "msp430i2021", "msp430i2030", "msp430i2031",
-"msp430i2040", "msp430i2041", "msp430l092", "msp430p112",
-"msp430p313", "msp430p315", "msp430p315s", "msp430p325",
-"msp430p337", "msp430tch5e"
-};
+/* This is a copy of the same data structure found in gas/config/tc-msp430.c
+ Also another (sort-of) copy can be found in gcc/config/msp430/t-msp430
+ Keep these three structures in sync.
+ The data in this structure has been extracted from version 1.194 of the
+ devices.csv file released by TI in September 2016. */
+
+struct msp430_mcu_data
+{
+ const char * name;
+ unsigned int revision; /* 0=> MSP430, 1=>MSP430X, 2=> MSP430Xv2. */
+ unsigned int hwmpy; /* 0=>none, 1=>16-bit, 2=>16-bit w/sign extend, 4=>32-bit, 8=> 32-bit (5xx). */
+}
+msp430_mcu_data [] =
+{
+ { "cc430f5123",2,8 },
+ { "cc430f5125",2,8 },
+ { "cc430f5133",2,8 },
+ { "cc430f5135",2,8 },
+ { "cc430f5137",2,8 },
+ { "cc430f5143",2,8 },
+ { "cc430f5145",2,8 },
+ { "cc430f5147",2,8 },
+ { "cc430f6125",2,8 },
+ { "cc430f6126",2,8 },
+ { "cc430f6127",2,8 },
+ { "cc430f6135",2,8 },
+ { "cc430f6137",2,8 },
+ { "cc430f6143",2,8 },
+ { "cc430f6145",2,8 },
+ { "cc430f6147",2,8 },
+ { "msp430afe221",0,2 },
+ { "msp430afe222",0,2 },
+ { "msp430afe223",0,2 },
+ { "msp430afe231",0,2 },
+ { "msp430afe232",0,2 },
+ { "msp430afe233",0,2 },
+ { "msp430afe251",0,2 },
+ { "msp430afe252",0,2 },
+ { "msp430afe253",0,2 },
+ { "msp430bt5190",2,8 },
+ { "msp430c091",0,0 },
+ { "msp430c092",0,0 },
+ { "msp430c111",0,0 },
+ { "msp430c1111",0,0 },
+ { "msp430c112",0,0 },
+ { "msp430c1121",0,0 },
+ { "msp430c1331",0,0 },
+ { "msp430c1351",0,0 },
+ { "msp430c311s",0,0 },
+ { "msp430c312",0,0 },
+ { "msp430c313",0,0 },
+ { "msp430c314",0,0 },
+ { "msp430c315",0,0 },
+ { "msp430c323",0,0 },
+ { "msp430c325",0,0 },
+ { "msp430c336",0,1 },
+ { "msp430c337",0,1 },
+ { "msp430c412",0,0 },
+ { "msp430c413",0,0 },
+ { "msp430cg4616",1,1 },
+ { "msp430cg4617",1,1 },
+ { "msp430cg4618",1,1 },
+ { "msp430cg4619",1,1 },
+ { "msp430e112",0,0 },
+ { "msp430e313",0,0 },
+ { "msp430e315",0,0 },
+ { "msp430e325",0,0 },
+ { "msp430e337",0,1 },
+ { "msp430f110",0,0 },
+ { "msp430f1101",0,0 },
+ { "msp430f1101a",0,0 },
+ { "msp430f1111",0,0 },
+ { "msp430f1111a",0,0 },
+ { "msp430f112",0,0 },
+ { "msp430f1121",0,0 },
+ { "msp430f1121a",0,0 },
+ { "msp430f1122",0,0 },
+ { "msp430f1132",0,0 },
+ { "msp430f122",0,0 },
+ { "msp430f1222",0,0 },
+ { "msp430f123",0,0 },
+ { "msp430f1232",0,0 },
+ { "msp430f133",0,0 },
+ { "msp430f135",0,0 },
+ { "msp430f147",0,1 },
+ { "msp430f1471",0,1 },
+ { "msp430f148",0,1 },
+ { "msp430f1481",0,1 },
+ { "msp430f149",0,1 },
+ { "msp430f1491",0,1 },
+ { "msp430f155",0,0 },
+ { "msp430f156",0,0 },
+ { "msp430f157",0,0 },
+ { "msp430f1610",0,1 },
+ { "msp430f1611",0,1 },
+ { "msp430f1612",0,1 },
+ { "msp430f167",0,1 },
+ { "msp430f168",0,1 },
+ { "msp430f169",0,1 },
+ { "msp430f2001",0,0 },
+ { "msp430f2002",0,0 },
+ { "msp430f2003",0,0 },
+ { "msp430f2011",0,0 },
+ { "msp430f2012",0,0 },
+ { "msp430f2013",0,0 },
+ { "msp430f2101",0,0 },
+ { "msp430f2111",0,0 },
+ { "msp430f2112",0,0 },
+ { "msp430f2121",0,0 },
+ { "msp430f2122",0,0 },
+ { "msp430f2131",0,0 },
+ { "msp430f2132",0,0 },
+ { "msp430f2232",0,0 },
+ { "msp430f2234",0,0 },
+ { "msp430f2252",0,0 },
+ { "msp430f2254",0,0 },
+ { "msp430f2272",0,0 },
+ { "msp430f2274",0,0 },
+ { "msp430f233",0,2 },
+ { "msp430f2330",0,2 },
+ { "msp430f235",0,2 },
+ { "msp430f2350",0,2 },
+ { "msp430f2370",0,2 },
+ { "msp430f2410",0,2 },
+ { "msp430f2416",1,2 },
+ { "msp430f2417",1,2 },
+ { "msp430f2418",1,2 },
+ { "msp430f2419",1,2 },
+ { "msp430f247",0,2 },
+ { "msp430f2471",0,2 },
+ { "msp430f248",0,2 },
+ { "msp430f2481",0,2 },
+ { "msp430f249",0,2 },
+ { "msp430f2491",0,2 },
+ { "msp430f2616",1,2 },
+ { "msp430f2617",1,2 },
+ { "msp430f2618",1,2 },
+ { "msp430f2619",1,2 },
+ { "msp430f412",0,0 },
+ { "msp430f413",0,0 },
+ { "msp430f4132",0,0 },
+ { "msp430f415",0,0 },
+ { "msp430f4152",0,0 },
+ { "msp430f417",0,0 },
+ { "msp430f423",0,1 },
+ { "msp430f423a",0,1 },
+ { "msp430f425",0,1 },
+ { "msp430f4250",0,0 },
+ { "msp430f425a",0,1 },
+ { "msp430f4260",0,0 },
+ { "msp430f427",0,1 },
+ { "msp430f4270",0,0 },
+ { "msp430f427a",0,1 },
+ { "msp430f435",0,0 },
+ { "msp430f4351",0,0 },
+ { "msp430f436",0,0 },
+ { "msp430f4361",0,0 },
+ { "msp430f437",0,0 },
+ { "msp430f4371",0,0 },
+ { "msp430f438",0,0 },
+ { "msp430f439",0,0 },
+ { "msp430f447",0,1 },
+ { "msp430f448",0,1 },
+ { "msp430f4481",0,1 },
+ { "msp430f449",0,1 },
+ { "msp430f4491",0,1 },
+ { "msp430f4616",1,1 },
+ { "msp430f46161",1,1 },
+ { "msp430f4617",1,1 },
+ { "msp430f46171",1,1 },
+ { "msp430f4618",1,1 },
+ { "msp430f46181",1,1 },
+ { "msp430f4619",1,1 },
+ { "msp430f46191",1,1 },
+ { "msp430f47126",1,4 },
+ { "msp430f47127",1,4 },
+ { "msp430f47163",1,4 },
+ { "msp430f47166",1,4 },
+ { "msp430f47167",1,4 },
+ { "msp430f47173",1,4 },
+ { "msp430f47176",1,4 },
+ { "msp430f47177",1,4 },
+ { "msp430f47183",1,4 },
+ { "msp430f47186",1,4 },
+ { "msp430f47187",1,4 },
+ { "msp430f47193",1,4 },
+ { "msp430f47196",1,4 },
+ { "msp430f47197",1,4 },
+ { "msp430f477",0,0 },
+ { "msp430f478",0,0 },
+ { "msp430f4783",0,4 },
+ { "msp430f4784",0,4 },
+ { "msp430f479",0,0 },
+ { "msp430f4793",0,4 },
+ { "msp430f4794",0,4 },
+ { "msp430f5131",2,8 },
+ { "msp430f5132",2,8 },
+ { "msp430f5151",2,8 },
+ { "msp430f5152",2,8 },
+ { "msp430f5171",2,8 },
+ { "msp430f5172",2,8 },
+ { "msp430f5212",2,8 },
+ { "msp430f5213",2,8 },
+ { "msp430f5214",2,8 },
+ { "msp430f5217",2,8 },
+ { "msp430f5218",2,8 },
+ { "msp430f5219",2,8 },
+ { "msp430f5222",2,8 },
+ { "msp430f5223",2,8 },
+ { "msp430f5224",2,8 },
+ { "msp430f5227",2,8 },
+ { "msp430f5228",2,8 },
+ { "msp430f5229",2,8 },
+ { "msp430f5232",2,8 },
+ { "msp430f5234",2,8 },
+ { "msp430f5237",2,8 },
+ { "msp430f5239",2,8 },
+ { "msp430f5242",2,8 },
+ { "msp430f5244",2,8 },
+ { "msp430f5247",2,8 },
+ { "msp430f5249",2,8 },
+ { "msp430f5252",2,8 },
+ { "msp430f5253",2,8 },
+ { "msp430f5254",2,8 },
+ { "msp430f5255",2,8 },
+ { "msp430f5256",2,8 },
+ { "msp430f5257",2,8 },
+ { "msp430f5258",2,8 },
+ { "msp430f5259",2,8 },
+ { "msp430f5304",2,8 },
+ { "msp430f5308",2,8 },
+ { "msp430f5309",2,8 },
+ { "msp430f5310",2,8 },
+ { "msp430f5324",2,8 },
+ { "msp430f5325",2,8 },
+ { "msp430f5326",2,8 },
+ { "msp430f5327",2,8 },
+ { "msp430f5328",2,8 },
+ { "msp430f5329",2,8 },
+ { "msp430f5333",2,8 },
+ { "msp430f5335",2,8 },
+ { "msp430f5336",2,8 },
+ { "msp430f5338",2,8 },
+ { "msp430f5340",2,8 },
+ { "msp430f5341",2,8 },
+ { "msp430f5342",2,8 },
+ { "msp430f5358",2,8 },
+ { "msp430f5359",2,8 },
+ { "msp430f5418",2,8 },
+ { "msp430f5418a",2,8 },
+ { "msp430f5419",2,8 },
+ { "msp430f5419a",2,8 },
+ { "msp430f5435",2,8 },
+ { "msp430f5435a",2,8 },
+ { "msp430f5436",2,8 },
+ { "msp430f5436a",2,8 },
+ { "msp430f5437",2,8 },
+ { "msp430f5437a",2,8 },
+ { "msp430f5438",2,8 },
+ { "msp430f5438a",2,8 },
+ { "msp430f5500",2,8 },
+ { "msp430f5501",2,8 },
+ { "msp430f5502",2,8 },
+ { "msp430f5503",2,8 },
+ { "msp430f5504",2,8 },
+ { "msp430f5505",2,8 },
+ { "msp430f5506",2,8 },
+ { "msp430f5507",2,8 },
+ { "msp430f5508",2,8 },
+ { "msp430f5509",2,8 },
+ { "msp430f5510",2,8 },
+ { "msp430f5513",2,8 },
+ { "msp430f5514",2,8 },
+ { "msp430f5515",2,8 },
+ { "msp430f5517",2,8 },
+ { "msp430f5519",2,8 },
+ { "msp430f5521",2,8 },
+ { "msp430f5522",2,8 },
+ { "msp430f5524",2,8 },
+ { "msp430f5525",2,8 },
+ { "msp430f5526",2,8 },
+ { "msp430f5527",2,8 },
+ { "msp430f5528",2,8 },
+ { "msp430f5529",2,8 },
+ { "msp430f5630",2,8 },
+ { "msp430f5631",2,8 },
+ { "msp430f5632",2,8 },
+ { "msp430f5633",2,8 },
+ { "msp430f5634",2,8 },
+ { "msp430f5635",2,8 },
+ { "msp430f5636",2,8 },
+ { "msp430f5637",2,8 },
+ { "msp430f5638",2,8 },
+ { "msp430f5658",2,8 },
+ { "msp430f5659",2,8 },
+ { "msp430f5xx_6xxgeneric",2,8 },
+ { "msp430f6433",2,8 },
+ { "msp430f6435",2,8 },
+ { "msp430f6436",2,8 },
+ { "msp430f6438",2,8 },
+ { "msp430f6458",2,8 },
+ { "msp430f6459",2,8 },
+ { "msp430f6630",2,8 },
+ { "msp430f6631",2,8 },
+ { "msp430f6632",2,8 },
+ { "msp430f6633",2,8 },
+ { "msp430f6634",2,8 },
+ { "msp430f6635",2,8 },
+ { "msp430f6636",2,8 },
+ { "msp430f6637",2,8 },
+ { "msp430f6638",2,8 },
+ { "msp430f6658",2,8 },
+ { "msp430f6659",2,8 },
+ { "msp430f6720",2,8 },
+ { "msp430f6720a",2,8 },
+ { "msp430f6721",2,8 },
+ { "msp430f6721a",2,8 },
+ { "msp430f6723",2,8 },
+ { "msp430f6723a",2,8 },
+ { "msp430f6724",2,8 },
+ { "msp430f6724a",2,8 },
+ { "msp430f6725",2,8 },
+ { "msp430f6725a",2,8 },
+ { "msp430f6726",2,8 },
+ { "msp430f6726a",2,8 },
+ { "msp430f6730",2,8 },
+ { "msp430f6730a",2,8 },
+ { "msp430f6731",2,8 },
+ { "msp430f6731a",2,8 },
+ { "msp430f6733",2,8 },
+ { "msp430f6733a",2,8 },
+ { "msp430f6734",2,8 },
+ { "msp430f6734a",2,8 },
+ { "msp430f6735",2,8 },
+ { "msp430f6735a",2,8 },
+ { "msp430f6736",2,8 },
+ { "msp430f6736a",2,8 },
+ { "msp430f6745",2,8 },
+ { "msp430f67451",2,8 },
+ { "msp430f67451a",2,8 },
+ { "msp430f6745a",2,8 },
+ { "msp430f6746",2,8 },
+ { "msp430f67461",2,8 },
+ { "msp430f67461a",2,8 },
+ { "msp430f6746a",2,8 },
+ { "msp430f6747",2,8 },
+ { "msp430f67471",2,8 },
+ { "msp430f67471a",2,8 },
+ { "msp430f6747a",2,8 },
+ { "msp430f6748",2,8 },
+ { "msp430f67481",2,8 },
+ { "msp430f67481a",2,8 },
+ { "msp430f6748a",2,8 },
+ { "msp430f6749",2,8 },
+ { "msp430f67491",2,8 },
+ { "msp430f67491a",2,8 },
+ { "msp430f6749a",2,8 },
+ { "msp430f67621",2,8 },
+ { "msp430f67621a",2,8 },
+ { "msp430f67641",2,8 },
+ { "msp430f67641a",2,8 },
+ { "msp430f6765",2,8 },
+ { "msp430f67651",2,8 },
+ { "msp430f67651a",2,8 },
+ { "msp430f6765a",2,8 },
+ { "msp430f6766",2,8 },
+ { "msp430f67661",2,8 },
+ { "msp430f67661a",2,8 },
+ { "msp430f6766a",2,8 },
+ { "msp430f6767",2,8 },
+ { "msp430f67671",2,8 },
+ { "msp430f67671a",2,8 },
+ { "msp430f6767a",2,8 },
+ { "msp430f6768",2,8 },
+ { "msp430f67681",2,8 },
+ { "msp430f67681a",2,8 },
+ { "msp430f6768a",2,8 },
+ { "msp430f6769",2,8 },
+ { "msp430f67691",2,8 },
+ { "msp430f67691a",2,8 },
+ { "msp430f6769a",2,8 },
+ { "msp430f6775",2,8 },
+ { "msp430f67751",2,8 },
+ { "msp430f67751a",2,8 },
+ { "msp430f6775a",2,8 },
+ { "msp430f6776",2,8 },
+ { "msp430f67761",2,8 },
+ { "msp430f67761a",2,8 },
+ { "msp430f6776a",2,8 },
+ { "msp430f6777",2,8 },
+ { "msp430f67771",2,8 },
+ { "msp430f67771a",2,8 },
+ { "msp430f6777a",2,8 },
+ { "msp430f6778",2,8 },
+ { "msp430f67781",2,8 },
+ { "msp430f67781a",2,8 },
+ { "msp430f6778a",2,8 },
+ { "msp430f6779",2,8 },
+ { "msp430f67791",2,8 },
+ { "msp430f67791a",2,8 },
+ { "msp430f6779a",2,8 },
+ { "msp430fe423",0,0 },
+ { "msp430fe4232",0,0 },
+ { "msp430fe423a",0,0 },
+ { "msp430fe4242",0,0 },
+ { "msp430fe425",0,0 },
+ { "msp430fe4252",0,0 },
+ { "msp430fe425a",0,0 },
+ { "msp430fe427",0,0 },
+ { "msp430fe4272",0,0 },
+ { "msp430fe427a",0,0 },
+ { "msp430fg4250",0,0 },
+ { "msp430fg4260",0,0 },
+ { "msp430fg4270",0,0 },
+ { "msp430fg437",0,0 },
+ { "msp430fg438",0,0 },
+ { "msp430fg439",0,0 },
+ { "msp430fg4616",1,1 },
+ { "msp430fg4617",1,1 },
+ { "msp430fg4618",1,1 },
+ { "msp430fg4619",1,1 },
+ { "msp430fg477",0,0 },
+ { "msp430fg478",0,0 },
+ { "msp430fg479",0,0 },
+ { "msp430fg6425",2,8 },
+ { "msp430fg6426",2,8 },
+ { "msp430fg6625",2,8 },
+ { "msp430fg6626",2,8 },
+ { "msp430fr2032",2,0 },
+ { "msp430fr2033",2,0 },
+ { "msp430fr2110",2,0 },
+ { "msp430fr2111",2,0 },
+ { "msp430fr2310",2,0 },
+ { "msp430fr2311",2,0 },
+ { "msp430fr2433",2,8 },
+ { "msp430fr2532",2,8 },
+ { "msp430fr2533",2,8 },
+ { "msp430fr2632",2,8 },
+ { "msp430fr2633",2,8 },
+ { "msp430fr2xx_4xxgeneric",2,8 },
+ { "msp430fr4131",2,0 },
+ { "msp430fr4132",2,0 },
+ { "msp430fr4133",2,0 },
+ { "msp430fr5720",2,8 },
+ { "msp430fr5721",2,8 },
+ { "msp430fr5722",2,8 },
+ { "msp430fr5723",2,8 },
+ { "msp430fr5724",2,8 },
+ { "msp430fr5725",2,8 },
+ { "msp430fr5726",2,8 },
+ { "msp430fr5727",2,8 },
+ { "msp430fr5728",2,8 },
+ { "msp430fr5729",2,8 },
+ { "msp430fr5730",2,8 },
+ { "msp430fr5731",2,8 },
+ { "msp430fr5732",2,8 },
+ { "msp430fr5733",2,8 },
+ { "msp430fr5734",2,8 },
+ { "msp430fr5735",2,8 },
+ { "msp430fr5736",2,8 },
+ { "msp430fr5737",2,8 },
+ { "msp430fr5738",2,8 },
+ { "msp430fr5739",2,8 },
+ { "msp430fr57xxgeneric",2,8 },
+ { "msp430fr5847",2,8 },
+ { "msp430fr58471",2,8 },
+ { "msp430fr5848",2,8 },
+ { "msp430fr5849",2,8 },
+ { "msp430fr5857",2,8 },
+ { "msp430fr5858",2,8 },
+ { "msp430fr5859",2,8 },
+ { "msp430fr5867",2,8 },
+ { "msp430fr58671",2,8 },
+ { "msp430fr5868",2,8 },
+ { "msp430fr5869",2,8 },
+ { "msp430fr5870",2,8 },
+ { "msp430fr5872",2,8 },
+ { "msp430fr58721",2,8 },
+ { "msp430fr5887",2,8 },
+ { "msp430fr5888",2,8 },
+ { "msp430fr5889",2,8 },
+ { "msp430fr58891",2,8 },
+ { "msp430fr5922",2,8 },
+ { "msp430fr59221",2,8 },
+ { "msp430fr5947",2,8 },
+ { "msp430fr59471",2,8 },
+ { "msp430fr5948",2,8 },
+ { "msp430fr5949",2,8 },
+ { "msp430fr5957",2,8 },
+ { "msp430fr5958",2,8 },
+ { "msp430fr5959",2,8 },
+ { "msp430fr5962",2,8 },
+ { "msp430fr5964",2,8 },
+ { "msp430fr5967",2,8 },
+ { "msp430fr5968",2,8 },
+ { "msp430fr5969",2,8 },
+ { "msp430fr59691",2,8 },
+ { "msp430fr5970",2,8 },
+ { "msp430fr5972",2,8 },
+ { "msp430fr59721",2,8 },
+ { "msp430fr5986",2,8 },
+ { "msp430fr5987",2,8 },
+ { "msp430fr5988",2,8 },
+ { "msp430fr5989",2,8 },
+ { "msp430fr59891",2,8 },
+ { "msp430fr5992",2,8 },
+ { "msp430fr5994",2,8 },
+ { "msp430fr59941",2,8 },
+ { "msp430fr5xx_6xxgeneric",2,8 },
+ { "msp430fr6820",2,8 },
+ { "msp430fr6822",2,8 },
+ { "msp430fr68221",2,8 },
+ { "msp430fr6870",2,8 },
+ { "msp430fr6872",2,8 },
+ { "msp430fr68721",2,8 },
+ { "msp430fr6877",2,8 },
+ { "msp430fr6879",2,8 },
+ { "msp430fr68791",2,8 },
+ { "msp430fr6887",2,8 },
+ { "msp430fr6888",2,8 },
+ { "msp430fr6889",2,8 },
+ { "msp430fr68891",2,8 },
+ { "msp430fr6920",2,8 },
+ { "msp430fr6922",2,8 },
+ { "msp430fr69221",2,8 },
+ { "msp430fr6927",2,8 },
+ { "msp430fr69271",2,8 },
+ { "msp430fr6928",2,8 },
+ { "msp430fr6970",2,8 },
+ { "msp430fr6972",2,8 },
+ { "msp430fr69721",2,8 },
+ { "msp430fr6977",2,8 },
+ { "msp430fr6979",2,8 },
+ { "msp430fr69791",2,8 },
+ { "msp430fr6987",2,8 },
+ { "msp430fr6988",2,8 },
+ { "msp430fr6989",2,8 },
+ { "msp430fr69891",2,8 },
+ { "msp430fw423",0,0 },
+ { "msp430fw425",0,0 },
+ { "msp430fw427",0,0 },
+ { "msp430fw428",0,0 },
+ { "msp430fw429",0,0 },
+ { "msp430g2001",0,0 },
+ { "msp430g2101",0,0 },
+ { "msp430g2102",0,0 },
+ { "msp430g2111",0,0 },
+ { "msp430g2112",0,0 },
+ { "msp430g2113",0,0 },
+ { "msp430g2121",0,0 },
+ { "msp430g2131",0,0 },
+ { "msp430g2132",0,0 },
+ { "msp430g2152",0,0 },
+ { "msp430g2153",0,0 },
+ { "msp430g2201",0,0 },
+ { "msp430g2202",0,0 },
+ { "msp430g2203",0,0 },
+ { "msp430g2210",0,0 },
+ { "msp430g2211",0,0 },
+ { "msp430g2212",0,0 },
+ { "msp430g2213",0,0 },
+ { "msp430g2221",0,0 },
+ { "msp430g2230",0,0 },
+ { "msp430g2231",0,0 },
+ { "msp430g2232",0,0 },
+ { "msp430g2233",0,0 },
+ { "msp430g2252",0,0 },
+ { "msp430g2253",0,0 },
+ { "msp430g2302",0,0 },
+ { "msp430g2303",0,0 },
+ { "msp430g2312",0,0 },
+ { "msp430g2313",0,0 },
+ { "msp430g2332",0,0 },
+ { "msp430g2333",0,0 },
+ { "msp430g2352",0,0 },
+ { "msp430g2353",0,0 },
+ { "msp430g2402",0,0 },
+ { "msp430g2403",0,0 },
+ { "msp430g2412",0,0 },
+ { "msp430g2413",0,0 },
+ { "msp430g2432",0,0 },
+ { "msp430g2433",0,0 },
+ { "msp430g2444",0,0 },
+ { "msp430g2452",0,0 },
+ { "msp430g2453",0,0 },
+ { "msp430g2513",0,0 },
+ { "msp430g2533",0,0 },
+ { "msp430g2544",0,0 },
+ { "msp430g2553",0,0 },
+ { "msp430g2744",0,0 },
+ { "msp430g2755",0,0 },
+ { "msp430g2855",0,0 },
+ { "msp430g2955",0,0 },
+ { "msp430i2020",0,2 },
+ { "msp430i2021",0,2 },
+ { "msp430i2030",0,2 },
+ { "msp430i2031",0,2 },
+ { "msp430i2040",0,2 },
+ { "msp430i2041",0,2 },
+ { "msp430i2xxgeneric",0,2 },
+ { "msp430l092",0,0 },
+ { "msp430p112",0,0 },
+ { "msp430p313",0,0 },
+ { "msp430p315",0,0 },
+ { "msp430p315s",0,0 },
+ { "msp430p325",0,0 },
+ { "msp430p337",0,1 },
+ { "msp430sl5438a",2,8 },
+ { "msp430tch5e",0,0 },
+ { "msp430xgeneric",2,8 },
+ { "rf430f5144",2,8 },
+ { "rf430f5155",2,8 },
+ { "rf430f5175",2,8 },
+ { "rf430frl152h",0,0 },
+ { "rf430frl152h_rom",0,0 },
+ { "rf430frl153h",0,0 },
+ { "rf430frl153h_rom",0,0 },
+ { "rf430frl154h",0,0 },
+ { "rf430frl154h_rom",0,0 }
+};
/* Generate a C preprocessor symbol based upon the MCU selected by the user.
If a specific MCU has not been selected then return a generic symbol instead. */
if (target_mcu)
{
unsigned int i;
- static char mcu_name [64];
+ unsigned int start_upper;
+ unsigned int end_upper;
+ static char mcu_name[64];
- snprintf (mcu_name, sizeof (mcu_name) - 1, "__%s__", target_mcu);
- for (i = strlen (mcu_name); i--;)
+ /* The 'i' in the device name symbol for msp430i* devices must be lower
+ case, to match the expected symbol in msp430.h. */
+ if (strncmp (target_mcu, "msp430i", 7) == 0)
+ {
+ snprintf (mcu_name, sizeof (mcu_name) - 1, "__MSP430i%s__",
+ target_mcu + 7);
+ start_upper = 9;
+ }
+ else
+ {
+ snprintf (mcu_name, sizeof (mcu_name) - 1, "__%s__", target_mcu);
+ start_upper = 2;
+ }
+ end_upper = strlen (mcu_name) - 2;
+ for (i = start_upper; i < end_upper; i++)
mcu_name[i] = TOUPPER (mcu_name[i]);
return mcu_name;
}
return msp430x ? "__MSP430XGENERIC__" : "__MSP430GENERIC__";
}
+static const char *
+hwmult_name (unsigned int val)
+{
+ switch (val)
+ {
+ case 0: return "none";
+ case 1: return "16-bit";
+ case 2: return "16-bit";
+ case 4: return "32-bit";
+ case 8: return "32-bit (5xx)";
+ default: gcc_unreachable ();
+ }
+}
+
static void
msp430_option_override (void)
{
+ /* The MSP430 architecture can safely dereference a NULL pointer. In fact,
+ there are memory mapped registers there. */
+ flag_delete_null_pointer_checks = 0;
+
init_machine_status = msp430_init_machine_status;
if (target_cpu)
{
+ /* gcc/common/config/msp430-common.c will have
+ already canonicalised the string in target_cpu. */
if (strcasecmp (target_cpu, "msp430x") == 0)
msp430x = true;
else /* target_cpu == "msp430" - already handled by the front end. */
msp430x = false;
}
- /* Note - the front end has already ensured at most
- one of target_cpu and target_mcu will be set. */
- else if (target_mcu)
+
+ if (target_mcu)
{
int i;
- /* If we are given an MCU name, we assume that it supports 430X.
- Then we check to see if it is one of the known MCUs that only
- supports 430. */
- msp430x = true;
-
- for (i = ARRAY_SIZE (msp430_mcu_names); i--;)
- if (strcasecmp (msp430_mcu_names[i], target_mcu) == 0)
+ /* FIXME: If the array were alpha sorted, we could use a binary search. */
+ for (i = ARRAY_SIZE (msp430_mcu_data); i--;)
+ if (strcasecmp (msp430_mcu_data[i].name, target_mcu) == 0)
{
- msp430x = false;
+ bool xisa = msp430_mcu_data[i].revision >= 1;
+
+ if (msp430_warn_mcu)
+ {
+ if (target_cpu&& msp430x != xisa)
+ warning (0, "MCU '%s' supports %s ISA but %<-mcpu%> option "
+ "is set to %s",
+ target_mcu, xisa ? "430X" : "430", msp430x ? "430X" : "430");
+
+ if (msp430_mcu_data[i].hwmpy == 0
+ && msp430_hwmult_type != MSP430_HWMULT_AUTO
+ && msp430_hwmult_type != MSP430_HWMULT_NONE)
+ warning (0, "MCU '%s' does not have hardware multiply "
+ "support, but %<-mhwmult%> is set to %s",
+ target_mcu,
+ msp430_hwmult_type == MSP430_HWMULT_SMALL ? "16-bit"
+ : msp430_hwmult_type == MSP430_HWMULT_LARGE ? "32-bit" : "f5series");
+ else if (msp430_hwmult_type == MSP430_HWMULT_SMALL
+ && msp430_mcu_data[i].hwmpy != 1
+ && msp430_mcu_data[i].hwmpy != 2 )
+ warning (0, "MCU '%s' supports %s hardware multiply, "
+ "but %<-mhwmult%> is set to 16-bit",
+ target_mcu, hwmult_name (msp430_mcu_data[i].hwmpy));
+ else if (msp430_hwmult_type == MSP430_HWMULT_LARGE && msp430_mcu_data[i].hwmpy != 4)
+ warning (0, "MCU '%s' supports %s hardware multiply, "
+ "but %<-mhwmult%> is set to 32-bit",
+ target_mcu, hwmult_name (msp430_mcu_data[i].hwmpy));
+ else if (msp430_hwmult_type == MSP430_HWMULT_F5SERIES && msp430_mcu_data[i].hwmpy != 8)
+ warning (0, "MCU '%s' supports %s hardware multiply, "
+ "but %<-mhwmult%> is set to f5series",
+ target_mcu, hwmult_name (msp430_mcu_data[i].hwmpy));
+ }
+
+ msp430x = xisa;
break;
}
- /* It is not an error if we do not match the MCU name. There are
- hundreds of them. */
+
+ if (i < 0)
+ {
+ if (msp430_hwmult_type == MSP430_HWMULT_AUTO)
+ {
+ if (msp430_warn_mcu)
+ {
+ if (target_cpu == NULL)
+ warning (0,
+ "Unrecognized MCU name '%s', assuming that it is "
+ "just a MSP430 with no hardware multiply.\n"
+ "Use the %<-mcpu%> and %<-mhwmult%> options to "
+ "set these explicitly.",
+ target_mcu);
+ else
+ warning (0,
+ "Unrecognized MCU name '%s', assuming that it "
+ "has no hardware multiply.\nUse the %<-mhwmult%> "
+ "option to set this explicitly.",
+ target_mcu);
+ }
+
+ msp430_hwmult_type = MSP430_HWMULT_NONE;
+ }
+ else if (target_cpu == NULL)
+ {
+ if (msp430_warn_mcu)
+ warning (0,
+ "Unrecognized MCU name '%s', assuming that it just "
+ "supports the MSP430 ISA.\nUse the %<-mcpu%> option "
+ "to set the ISA explicitly.",
+ target_mcu);
+
+ msp430x = false;
+ }
+ else if (msp430_warn_mcu)
+ warning (0, "Unrecognized MCU name '%s'.", target_mcu);
+ }
}
+ /* The F5 series are all able to support the 430X ISA. */
+ if (target_cpu == NULL && target_mcu == NULL && msp430_hwmult_type == MSP430_HWMULT_F5SERIES)
+ msp430x = true;
+
if (TARGET_LARGE && !msp430x)
- error ("-mlarge requires a 430X-compatible -mmcu=");
+ error ("%<-mlarge%> requires a 430X-compatible %<-mmcu=%>");
+
+ if (msp430_code_region == MSP430_REGION_UPPER && ! msp430x)
+ error ("%<-mcode-region=upper%> requires 430X-compatible cpu");
+ if (msp430_data_region == MSP430_REGION_UPPER && ! msp430x)
+ error ("%<-mdata-region=upper%> requires 430X-compatible cpu");
if (flag_exceptions || flag_non_call_exceptions
|| flag_unwind_tables || flag_asynchronous_unwind_tables)
optimize_size = 1;
}
+#undef TARGET_SCALAR_MODE_SUPPORTED_P
+#define TARGET_SCALAR_MODE_SUPPORTED_P msp430_scalar_mode_supported_p
+
+static bool
+msp430_scalar_mode_supported_p (scalar_mode m)
+{
+ if (m == PSImode && msp430x)
+ return true;
+#if 0
+ if (m == TImode)
+ return true;
+#endif
+ return default_scalar_mode_supported_p (m);
+}
+
\f
/* Storage Layout */
/* Register Usage */
-/* Implements HARD_REGNO_NREGS. MSP430X registers can hold a single
- PSImode value, but not an SImode value. */
+#undef TARGET_HARD_REGNO_NREGS
+#define TARGET_HARD_REGNO_NREGS msp430_hard_regno_nregs
+
+static unsigned int
+msp430_hard_regno_nregs (unsigned int, machine_mode mode)
+{
+ if (mode == PSImode && msp430x)
+ return 1;
+ if (mode == CPSImode && msp430x)
+ return 2;
+ return ((GET_MODE_SIZE (mode) + UNITS_PER_WORD - 1)
+ / UNITS_PER_WORD);
+}
+
+/* Implements HARD_REGNO_NREGS_HAS_PADDING. */
int
-msp430_hard_regno_nregs (int regno ATTRIBUTE_UNUSED,
- enum machine_mode mode)
+msp430_hard_regno_nregs_has_padding (int regno ATTRIBUTE_UNUSED,
+ machine_mode mode)
{
if (mode == PSImode && msp430x)
return 1;
/ UNITS_PER_WORD);
}
-/* Implements HARD_REGNO_MODE_OK. */
+/* Implements HARD_REGNO_NREGS_WITH_PADDING. */
int
-msp430_hard_regno_mode_ok (int regno ATTRIBUTE_UNUSED,
- enum machine_mode mode)
+msp430_hard_regno_nregs_with_padding (int regno ATTRIBUTE_UNUSED,
+ machine_mode mode)
{
- return regno <= (ARG_POINTER_REGNUM - msp430_hard_regno_nregs (regno, mode));
+ if (mode == PSImode)
+ return 2;
+ if (mode == CPSImode)
+ return 4;
+ return msp430_hard_regno_nregs (regno, mode);
}
-/* Implements MODES_TIEABLE_P. */
-bool
-msp430_modes_tieable_p (enum machine_mode mode1, enum machine_mode mode2)
+#undef TARGET_HARD_REGNO_MODE_OK
+#define TARGET_HARD_REGNO_MODE_OK msp430_hard_regno_mode_ok
+
+static bool
+msp430_hard_regno_mode_ok (unsigned int regno, machine_mode mode)
+{
+ return regno <= (ARG_POINTER_REGNUM
+ - (unsigned int) msp430_hard_regno_nregs (regno, mode));
+}
+
+#undef TARGET_MODES_TIEABLE_P
+#define TARGET_MODES_TIEABLE_P msp430_modes_tieable_p
+
+static bool
+msp430_modes_tieable_p (machine_mode mode1, machine_mode mode2)
{
if ((mode1 == PSImode || mode2 == SImode)
|| (mode1 == SImode || mode2 == PSImode))
#undef TARGET_ADDR_SPACE_ADDRESS_MODE
#define TARGET_ADDR_SPACE_ADDRESS_MODE msp430_addr_space_pointer_mode
-static enum machine_mode
+static scalar_int_mode
msp430_addr_space_pointer_mode (addr_space_t addrspace)
{
switch (addrspace)
#undef TARGET_UNWIND_WORD_MODE
#define TARGET_UNWIND_WORD_MODE msp430_unwind_word_mode
-static enum machine_mode
+static scalar_int_mode
msp430_unwind_word_mode (void)
{
- return TARGET_LARGE ? SImode : HImode;
+ /* This needs to match msp430_init_dwarf_reg_sizes_extra (below). */
+ return msp430x ? PSImode : HImode;
}
/* Determine if one named address space is a subset of another. */
#define TARGET_LIBCALL_VALUE msp430_libcall_value
rtx
-msp430_libcall_value (enum machine_mode mode, const_rtx fun ATTRIBUTE_UNUSED)
+msp430_libcall_value (machine_mode mode, const_rtx fun ATTRIBUTE_UNUSED)
{
return gen_rtx_REG (mode, 12);
}
code that determines where an argument will be passed. */
static void
msp430_evaluate_arg (cumulative_args_t cap,
- enum machine_mode mode,
+ machine_mode mode,
const_tree type ATTRIBUTE_UNUSED,
bool named)
{
rtx
msp430_function_arg (cumulative_args_t cap,
- enum machine_mode mode,
+ machine_mode mode,
const_tree type,
bool named)
{
int
msp430_arg_partial_bytes (cumulative_args_t cap,
- enum machine_mode mode,
+ machine_mode mode,
tree type,
bool named)
{
static bool
msp430_pass_by_reference (cumulative_args_t cap ATTRIBUTE_UNUSED,
- enum machine_mode mode,
+ machine_mode mode,
const_tree type,
bool named ATTRIBUTE_UNUSED)
{
static bool
msp430_callee_copies (cumulative_args_t cap ATTRIBUTE_UNUSED,
- enum machine_mode mode ATTRIBUTE_UNUSED,
+ machine_mode mode ATTRIBUTE_UNUSED,
const_tree type ATTRIBUTE_UNUSED,
bool named ATTRIBUTE_UNUSED)
{
void
msp430_function_arg_advance (cumulative_args_t cap,
- enum machine_mode mode,
+ machine_mode mode,
const_tree type,
bool named)
{
#define TARGET_FUNCTION_ARG_BOUNDARY msp430_function_arg_boundary
static unsigned int
-msp430_function_arg_boundary (enum machine_mode mode, const_tree type)
+msp430_function_arg_boundary (machine_mode mode, const_tree type)
{
if (mode == BLKmode
&& int_size_in_bytes (type) > 1)
static bool
msp430_return_in_memory (const_tree ret_type, const_tree fntype ATTRIBUTE_UNUSED)
{
- enum machine_mode mode = TYPE_MODE (ret_type);
+ machine_mode mode = TYPE_MODE (ret_type);
if (mode == BLKmode
|| (fntype && TREE_CODE (TREE_TYPE (fntype)) == RECORD_TYPE)
#undef TARGET_GET_RAW_ARG_MODE
#define TARGET_GET_RAW_ARG_MODE msp430_get_raw_arg_mode
-static enum machine_mode
+static fixed_size_mode
msp430_get_raw_arg_mode (int regno)
{
- return (regno == ARG_POINTER_REGNUM) ? VOIDmode : Pmode;
+ return as_a <fixed_size_mode> (regno == ARG_POINTER_REGNUM
+ ? VOIDmode : Pmode);
}
#undef TARGET_GET_RAW_RESULT_MODE
#define TARGET_GET_RAW_RESULT_MODE msp430_get_raw_result_mode
-static enum machine_mode
+static fixed_size_mode
msp430_get_raw_result_mode (int regno ATTRIBUTE_UNUSED)
{
return Pmode;
}
+
+#undef TARGET_GIMPLIFY_VA_ARG_EXPR
+#define TARGET_GIMPLIFY_VA_ARG_EXPR msp430_gimplify_va_arg_expr
+
+#include "gimplify.h"
+
+static tree
+msp430_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p,
+ gimple_seq *post_p)
+{
+ tree addr, t, type_size, rounded_size, valist_tmp;
+ unsigned HOST_WIDE_INT align, boundary;
+ bool indirect;
+
+ indirect = pass_by_reference (NULL, TYPE_MODE (type), type, false);
+ if (indirect)
+ type = build_pointer_type (type);
+
+ align = PARM_BOUNDARY / BITS_PER_UNIT;
+ boundary = targetm.calls.function_arg_boundary (TYPE_MODE (type), type);
+
+ /* When we align parameter on stack for caller, if the parameter
+ alignment is beyond MAX_SUPPORTED_STACK_ALIGNMENT, it will be
+ aligned at MAX_SUPPORTED_STACK_ALIGNMENT. We will match callee
+ here with caller. */
+ if (boundary > MAX_SUPPORTED_STACK_ALIGNMENT)
+ boundary = MAX_SUPPORTED_STACK_ALIGNMENT;
+
+ boundary /= BITS_PER_UNIT;
+
+ /* Hoist the valist value into a temporary for the moment. */
+ valist_tmp = get_initialized_tmp_var (valist, pre_p, NULL);
+
+ /* va_list pointer is aligned to PARM_BOUNDARY. If argument actually
+ requires greater alignment, we must perform dynamic alignment. */
+ if (boundary > align
+ && !integer_zerop (TYPE_SIZE (type)))
+ {
+ /* FIXME: This is where this function diverts from targhooks.c:
+ std_gimplify_va_arg_expr(). It works, but I do not know why... */
+ if (! POINTER_TYPE_P (type))
+ {
+ t = build2 (MODIFY_EXPR, TREE_TYPE (valist), valist_tmp,
+ fold_build_pointer_plus_hwi (valist_tmp, boundary - 1));
+ gimplify_and_add (t, pre_p);
+
+ t = build2 (MODIFY_EXPR, TREE_TYPE (valist), valist_tmp,
+ fold_build2 (BIT_AND_EXPR, TREE_TYPE (valist),
+ valist_tmp,
+ build_int_cst (TREE_TYPE (valist), -boundary)));
+ gimplify_and_add (t, pre_p);
+ }
+ }
+ else
+ boundary = align;
+
+ /* If the actual alignment is less than the alignment of the type,
+ adjust the type accordingly so that we don't assume strict alignment
+ when dereferencing the pointer. */
+ boundary *= BITS_PER_UNIT;
+ if (boundary < TYPE_ALIGN (type))
+ {
+ type = build_variant_type_copy (type);
+ SET_TYPE_ALIGN (type, boundary);
+ }
+
+ /* Compute the rounded size of the type. */
+ type_size = size_in_bytes (type);
+ rounded_size = round_up (type_size, align);
+
+ /* Reduce rounded_size so it's sharable with the postqueue. */
+ gimplify_expr (&rounded_size, pre_p, post_p, is_gimple_val, fb_rvalue);
+
+ /* Get AP. */
+ addr = valist_tmp;
+
+ /* Compute new value for AP. */
+ t = fold_build_pointer_plus (valist_tmp, rounded_size);
+ t = build2 (MODIFY_EXPR, TREE_TYPE (valist), valist, t);
+ gimplify_and_add (t, pre_p);
+
+ addr = fold_convert (build_pointer_type (type), addr);
+
+ if (indirect)
+ addr = build_va_arg_indirect_ref (addr);
+
+ addr = build_va_arg_indirect_ref (addr);
+
+ return addr;
+}
\f
+#undef TARGET_LRA_P
+#define TARGET_LRA_P hook_bool_void_false
+
/* Addressing Modes */
#undef TARGET_LEGITIMATE_ADDRESS_P
}
bool
-msp430_legitimate_address_p (enum machine_mode mode ATTRIBUTE_UNUSED,
+msp430_legitimate_address_p (machine_mode mode ATTRIBUTE_UNUSED,
rtx x ATTRIBUTE_UNUSED,
bool strict ATTRIBUTE_UNUSED)
{
case REG:
if (!reg_ok_for_addr (x, strict))
return false;
- /* else... */
+ /* FALLTHRU */
case CONST:
case SYMBOL_REF:
case CONST_INT:
}
}
+#undef TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P
+#define TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P msp430_addr_space_legitimate_address_p
+
+bool
+msp430_addr_space_legitimate_address_p (machine_mode mode,
+ rtx x,
+ bool strict,
+ addr_space_t as ATTRIBUTE_UNUSED)
+{
+ return msp430_legitimate_address_p (mode, x, strict);
+}
+
+#undef TARGET_ASM_INTEGER
+#define TARGET_ASM_INTEGER msp430_asm_integer
+static bool
+msp430_asm_integer (rtx x, unsigned int size, int aligned_p)
+{
+ int c = GET_CODE (x);
+
+ if (size == 3 && GET_MODE (x) == PSImode)
+ size = 4;
+
+ switch (size)
+ {
+ case 4:
+ if (c == SYMBOL_REF || c == CONST || c == LABEL_REF || c == CONST_INT
+ || c == PLUS || c == MINUS)
+ {
+ fprintf (asm_out_file, "\t.long\t");
+ output_addr_const (asm_out_file, x);
+ fputc ('\n', asm_out_file);
+ return true;
+ }
+ break;
+ }
+ return default_assemble_integer (x, size, aligned_p);
+}
+
+#undef TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA
+#define TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA msp430_asm_output_addr_const_extra
+static bool
+msp430_asm_output_addr_const_extra (FILE *file ATTRIBUTE_UNUSED, rtx x)
+{
+ debug_rtx(x);
+ return false;
+}
+
#undef TARGET_LEGITIMATE_CONSTANT_P
#define TARGET_LEGITIMATE_CONSTANT_P msp430_legitimate_constant
static bool
-msp430_legitimate_constant (enum machine_mode mode, rtx x)
+msp430_legitimate_constant (machine_mode mode, rtx x)
{
return ! CONST_INT_P (x)
|| mode != PSImode
/* GCC does not know the width of the PSImode, so make
sure that it does not try to use a constant value that
is out of range. */
- || (INTVAL (x) < (1 << 20) && INTVAL (x) >= (-1 << 20));
+ || (INTVAL (x) < (1 << 20) && INTVAL (x) >= (HOST_WIDE_INT)(HOST_WIDE_INT_M1U << 20));
}
\f
#undef TARGET_RTX_COSTS
#define TARGET_RTX_COSTS msp430_rtx_costs
-static bool msp430_rtx_costs (rtx x ATTRIBUTE_UNUSED,
- int code,
- int outer_code ATTRIBUTE_UNUSED,
- int opno ATTRIBUTE_UNUSED,
- int * total,
- bool speed ATTRIBUTE_UNUSED)
+static bool msp430_rtx_costs (rtx x ATTRIBUTE_UNUSED,
+ machine_mode mode,
+ int outer_code ATTRIBUTE_UNUSED,
+ int opno ATTRIBUTE_UNUSED,
+ int * total,
+ bool speed ATTRIBUTE_UNUSED)
{
+ int code = GET_CODE (x);
+
switch (code)
{
case SIGN_EXTEND:
- if (GET_MODE (x) == SImode && outer_code == SET)
+ if (mode == SImode && outer_code == SET)
{
*total = COSTS_N_INSNS (4);
return true;
+ cfun->machine->framesize_outgoing);
}
+/* Attribute Handling. */
+
+const char * const ATTR_INTR = "interrupt";
+const char * const ATTR_WAKEUP = "wakeup";
+const char * const ATTR_NAKED = "naked";
+const char * const ATTR_REENT = "reentrant";
+const char * const ATTR_CRIT = "critical";
+const char * const ATTR_LOWER = "lower";
+const char * const ATTR_UPPER = "upper";
+const char * const ATTR_EITHER = "either";
+const char * const ATTR_NOINIT = "noinit";
+const char * const ATTR_PERSIST = "persistent";
+
static inline bool
-is_attr_func (const char * attr)
+has_attr (const char * attr, tree decl)
+{
+ if (decl == NULL_TREE)
+ return false;
+ return lookup_attribute (attr, DECL_ATTRIBUTES (decl)) != NULL_TREE;
+}
+
+static bool
+is_interrupt_func (tree decl = current_function_decl)
{
- return lookup_attribute (attr, DECL_ATTRIBUTES (current_function_decl)) != NULL_TREE;
+ return has_attr (ATTR_INTR, decl);
}
/* Returns true if the current function has the "interrupt" attribute. */
bool
msp430_is_interrupt_func (void)
{
- if (current_function_decl == NULL)
- return false;
- return is_attr_func ("interrupt");
+ return is_interrupt_func (current_function_decl);
}
static bool
-is_wakeup_func (void)
+is_wakeup_func (tree decl = current_function_decl)
{
- return msp430_is_interrupt_func () && is_attr_func ("wakeup");
+ return is_interrupt_func (decl) && has_attr (ATTR_WAKEUP, decl);
}
static inline bool
-is_naked_func (void)
+is_naked_func (tree decl = current_function_decl)
{
- return is_attr_func ("naked");
+ return has_attr (ATTR_NAKED, decl);
}
static inline bool
-is_reentrant_func (void)
+is_reentrant_func (tree decl = current_function_decl)
{
- return is_attr_func ("reentrant");
+ return has_attr (ATTR_REENT, decl);
}
static inline bool
-is_critical_func (void)
+is_critical_func (tree decl = current_function_decl)
{
- return is_attr_func ("critical");
+ return has_attr (ATTR_CRIT, decl);
}
-#undef TARGET_ASM_FUNCTION_PROLOGUE
-#define TARGET_ASM_FUNCTION_PROLOGUE msp430_start_function
-
-static void
-msp430_start_function (FILE *outfile, HOST_WIDE_INT hwi_local ATTRIBUTE_UNUSED)
+static bool
+has_section_name (const char * name, tree decl = current_function_decl)
{
- int r, n;
-
- fprintf (outfile, "; start of function\n");
-
- if (DECL_ATTRIBUTES (current_function_decl) != NULL_TREE)
- {
- fprintf (outfile, "; attributes: ");
- if (is_naked_func ())
- fprintf (outfile, "naked ");
- if (msp430_is_interrupt_func ())
- fprintf (outfile, "interrupt ");
- if (is_reentrant_func ())
- fprintf (outfile, "reentrant ");
- if (is_critical_func ())
- fprintf (outfile, "critical ");
- if (is_wakeup_func ())
- fprintf (outfile, "wakeup ");
- fprintf (outfile, "\n");
- }
-
- fprintf (outfile, "; framesize_regs: %d\n", cfun->machine->framesize_regs);
- fprintf (outfile, "; framesize_locals: %d\n", cfun->machine->framesize_locals);
- fprintf (outfile, "; framesize_outgoing: %d\n", cfun->machine->framesize_outgoing);
- fprintf (outfile, "; framesize: %d\n", cfun->machine->framesize);
- fprintf (outfile, "; elim ap -> fp %d\n", msp430_initial_elimination_offset (ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM));
- fprintf (outfile, "; elim fp -> sp %d\n", msp430_initial_elimination_offset (FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM));
-
- n = 0;
- fprintf (outfile, "; saved regs:");
- for (r = 0; r < ARG_POINTER_REGNUM; r++)
- if (cfun->machine->need_to_save [r])
- {
- fprintf (outfile, " %s", reg_names [r]);
- n = 1;
- }
- if (n == 0)
- fprintf (outfile, "(none)");
- fprintf (outfile, "\n");
+ if (decl == NULL_TREE)
+ return false;
+ return (DECL_SECTION_NAME (decl)
+ && (strcmp (name, DECL_SECTION_NAME (decl)) == 0));
}
-/* Common code to change the stack pointer. */
-static void
-increment_stack (HOST_WIDE_INT amount)
+#undef TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS
+#define TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS msp430_allocate_stack_slots_for_args
+
+static bool
+msp430_allocate_stack_slots_for_args (void)
{
- rtx inc;
- rtx sp = stack_pointer_rtx;
+ /* Naked functions should not allocate stack slots for arguments. */
+ return ! is_naked_func ();
+}
- if (amount == 0)
- return;
+#undef TARGET_WARN_FUNC_RETURN
+#define TARGET_WARN_FUNC_RETURN msp430_warn_func_return
- if (amount < 0)
- {
- inc = GEN_INT (- amount);
- if (TARGET_LARGE)
- F (emit_insn (gen_subpsi3 (sp, sp, inc)));
- else
- F (emit_insn (gen_subhi3 (sp, sp, inc)));
- }
- else
- {
- inc = GEN_INT (amount);
- if (TARGET_LARGE)
- emit_insn (gen_addpsi3 (sp, sp, inc));
- else
- emit_insn (gen_addhi3 (sp, sp, inc));
- }
+static bool
+msp430_warn_func_return (tree decl)
+{
+ /* Naked functions are implemented entirely in assembly, including the
+ return sequence, so suppress warnings about this. */
+ return !is_naked_func (decl);
}
/* Verify MSP430 specific attributes. */
+#define TREE_NAME_EQ(NAME, STR) (strcmp (IDENTIFIER_POINTER (NAME), (STR)) == 0)
static tree
msp430_attr (tree * node,
{
gcc_assert (DECL_P (* node));
+ /* Only the interrupt attribute takes an argument. */
if (args != NULL)
{
tree value = TREE_VALUE (args);
/* Allow the attribute to be added - the linker script
being used may still recognise this name. */
warning (OPT_Wattributes,
- "unrecognised interrupt vector argument of %qE attribute",
+ "unrecognized interrupt vector argument of %qE attribute",
name);
break;
case INTEGER_CST:
- if (wi::gtu_p (value, 63))
+ if (wi::gtu_p (wi::to_wide (value), 63))
/* Allow the attribute to be added - the linker script
being used may still recognise this value. */
warning (OPT_Wattributes,
}
}
- if (TREE_CODE (* node) != FUNCTION_DECL)
+ const char * message = NULL;
+
+ if (TREE_CODE (* node) != FUNCTION_DECL)
+ {
+ message = "%qE attribute only applies to functions";
+ }
+ else if (TREE_NAME_EQ (name, ATTR_INTR))
+ {
+ if (TREE_CODE (TREE_TYPE (* node)) == FUNCTION_TYPE
+ && ! VOID_TYPE_P (TREE_TYPE (TREE_TYPE (* node))))
+ message = "interrupt handlers must be void";
+ else
+ {
+ /* Ensure interrupt handlers never get optimised out. */
+ TREE_USED (* node) = 1;
+ DECL_PRESERVE_P (* node) = 1;
+ }
+ if (is_critical_func (* node))
+ {
+ warning (OPT_Wattributes,
+ "critical attribute has no effect on interrupt functions");
+ DECL_ATTRIBUTES (*node) = remove_attribute (ATTR_CRIT,
+ DECL_ATTRIBUTES (* node));
+ }
+ }
+ else if (TREE_NAME_EQ (name, ATTR_REENT))
+ {
+ if (is_naked_func (* node))
+ message = "naked functions cannot be reentrant";
+ else if (is_critical_func (* node))
+ message = "critical functions cannot be reentrant";
+ }
+ else if (TREE_NAME_EQ (name, ATTR_CRIT))
+ {
+ if (is_naked_func (* node))
+ message = "naked functions cannot be critical";
+ else if (is_reentrant_func (* node))
+ message = "reentrant functions cannot be critical";
+ else if (is_interrupt_func ( *node))
+ message = "critical attribute has no effect on interrupt functions";
+ }
+ else if (TREE_NAME_EQ (name, ATTR_NAKED))
+ {
+ if (is_critical_func (* node))
+ message = "critical functions cannot be naked";
+ else if (is_reentrant_func (* node))
+ message = "reentrant functions cannot be naked";
+ }
+
+ if (message)
+ {
+ warning (OPT_Wattributes, message, name);
+ * no_add_attrs = true;
+ }
+
+ return NULL_TREE;
+}
+
+static tree
+msp430_section_attr (tree * node,
+ tree name,
+ tree args,
+ int flags ATTRIBUTE_UNUSED,
+ bool * no_add_attrs ATTRIBUTE_UNUSED)
+{
+ gcc_assert (DECL_P (* node));
+ gcc_assert (args == NULL);
+
+ const char * message = NULL;
+
+ if (TREE_NAME_EQ (name, ATTR_UPPER))
+ {
+ if (has_attr (ATTR_LOWER, * node))
+ message = "already marked with 'lower' attribute";
+ else if (has_attr (ATTR_EITHER, * node))
+ message = "already marked with 'either' attribute";
+ else if (! msp430x)
+ message = "upper attribute needs a 430X cpu";
+ }
+ else if (TREE_NAME_EQ (name, ATTR_LOWER))
+ {
+ if (has_attr (ATTR_UPPER, * node))
+ message = "already marked with 'upper' attribute";
+ else if (has_attr (ATTR_EITHER, * node))
+ message = "already marked with 'either' attribute";
+ }
+ else
+ {
+ gcc_assert (TREE_NAME_EQ (name, ATTR_EITHER));
+
+ if (has_attr (ATTR_LOWER, * node))
+ message = "already marked with 'lower' attribute";
+ else if (has_attr (ATTR_UPPER, * node))
+ message = "already marked with 'upper' attribute";
+ }
+
+ if (message)
+ {
+ warning (OPT_Wattributes, message, name);
+ * no_add_attrs = true;
+ }
+
+ return NULL_TREE;
+}
+
+static tree
+msp430_data_attr (tree * node,
+ tree name,
+ tree args,
+ int flags ATTRIBUTE_UNUSED,
+ bool * no_add_attrs ATTRIBUTE_UNUSED)
+{
+ const char * message = NULL;
+
+ gcc_assert (DECL_P (* node));
+ gcc_assert (args == NULL);
+
+ if (TREE_CODE (* node) != VAR_DECL)
+ message = G_("%qE attribute only applies to variables");
+
+ /* Check that it's possible for the variable to have a section. */
+ if ((TREE_STATIC (* node) || DECL_EXTERNAL (* node) || in_lto_p)
+ && DECL_SECTION_NAME (* node))
+ message = G_("%qE attribute cannot be applied to variables with specific sections");
+
+ if (!message && TREE_NAME_EQ (name, ATTR_PERSIST) && !TREE_STATIC (* node)
+ && !TREE_PUBLIC (* node) && !DECL_EXTERNAL (* node))
+ message = G_("%qE attribute has no effect on automatic variables");
+
+ /* It's not clear if there is anything that can be set here to prevent the
+ front end placing the variable before the back end can handle it, in a
+ similar way to how DECL_COMMON is used below.
+ So just place the variable in the .persistent section now. */
+ if ((TREE_STATIC (* node) || DECL_EXTERNAL (* node) || in_lto_p)
+ && TREE_NAME_EQ (name, ATTR_PERSIST))
+ set_decl_section_name (* node, ".persistent");
+
+ /* If this var is thought to be common, then change this. Common variables
+ are assigned to sections before the backend has a chance to process them. */
+ if (DECL_COMMON (* node))
+ DECL_COMMON (* node) = 0;
+
+ if (message)
+ {
+ warning (OPT_Wattributes, message, name);
+ * no_add_attrs = true;
+ }
+
+ return NULL_TREE;
+}
+
+
+#undef TARGET_ATTRIBUTE_TABLE
+#define TARGET_ATTRIBUTE_TABLE msp430_attribute_table
+
+/* Table of MSP430-specific attributes. */
+const struct attribute_spec msp430_attribute_table[] =
+{
+ /* Name min_num_args type_req, handler
+ max_num_args, fn_type_req exclude
+ decl_req affects_type_identity. */
+ { ATTR_INTR, 0, 1, true, false, false, false, msp430_attr, NULL },
+ { ATTR_NAKED, 0, 0, true, false, false, false, msp430_attr, NULL },
+ { ATTR_REENT, 0, 0, true, false, false, false, msp430_attr, NULL },
+ { ATTR_CRIT, 0, 0, true, false, false, false, msp430_attr, NULL },
+ { ATTR_WAKEUP, 0, 0, true, false, false, false, msp430_attr, NULL },
+
+ { ATTR_LOWER, 0, 0, true, false, false, false, msp430_section_attr,
+ NULL },
+ { ATTR_UPPER, 0, 0, true, false, false, false, msp430_section_attr,
+ NULL },
+ { ATTR_EITHER, 0, 0, true, false, false, false, msp430_section_attr,
+ NULL },
+
+ { ATTR_NOINIT, 0, 0, true, false, false, false, msp430_data_attr,
+ NULL },
+ { ATTR_PERSIST, 0, 0, true, false, false, false, msp430_data_attr,
+ NULL },
+
+ { NULL, 0, 0, false, false, false, false, NULL, NULL }
+};
+
+#undef TARGET_ASM_FUNCTION_PROLOGUE
+#define TARGET_ASM_FUNCTION_PROLOGUE msp430_start_function
+
+static void
+msp430_start_function (FILE *outfile)
+{
+ int r, n;
+
+ fprintf (outfile, "; start of function\n");
+
+ if (DECL_ATTRIBUTES (current_function_decl) != NULL_TREE)
+ {
+ fprintf (outfile, "; attributes: ");
+ if (is_naked_func ())
+ fprintf (outfile, "naked ");
+ if (msp430_is_interrupt_func ())
+ fprintf (outfile, "interrupt ");
+ if (is_reentrant_func ())
+ fprintf (outfile, "reentrant ");
+ if (is_critical_func ())
+ fprintf (outfile, "critical ");
+ if (is_wakeup_func ())
+ fprintf (outfile, "wakeup ");
+ fprintf (outfile, "\n");
+ }
+
+ fprintf (outfile, "; framesize_regs: %d\n", cfun->machine->framesize_regs);
+ fprintf (outfile, "; framesize_locals: %d\n", cfun->machine->framesize_locals);
+ fprintf (outfile, "; framesize_outgoing: %d\n", cfun->machine->framesize_outgoing);
+ fprintf (outfile, "; framesize: %d\n", cfun->machine->framesize);
+ fprintf (outfile, "; elim ap -> fp %d\n", msp430_initial_elimination_offset (ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM));
+ fprintf (outfile, "; elim fp -> sp %d\n", msp430_initial_elimination_offset (FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM));
+
+ n = 0;
+ fprintf (outfile, "; saved regs:");
+ for (r = 0; r < ARG_POINTER_REGNUM; r++)
+ if (cfun->machine->need_to_save [r])
+ {
+ fprintf (outfile, " %s", reg_names [r]);
+ n = 1;
+ }
+ if (n == 0)
+ fprintf (outfile, "(none)");
+ fprintf (outfile, "\n");
+}
+
+/* Common code to change the stack pointer. */
+static void
+increment_stack (HOST_WIDE_INT amount)
+{
+ rtx inc;
+ rtx sp = stack_pointer_rtx;
+
+ if (amount == 0)
+ return;
+
+ if (amount < 0)
{
- warning (OPT_Wattributes,
- "%qE attribute only applies to functions",
- name);
- * no_add_attrs = true;
+ inc = GEN_INT (- amount);
+ if (TARGET_LARGE)
+ F (emit_insn (gen_subpsi3 (sp, sp, inc)));
+ else
+ F (emit_insn (gen_subhi3 (sp, sp, inc)));
+ }
+ else
+ {
+ inc = GEN_INT (amount);
+ if (TARGET_LARGE)
+ emit_insn (gen_addpsi3 (sp, sp, inc));
+ else
+ emit_insn (gen_addhi3 (sp, sp, inc));
}
-
- /* FIXME: We ought to check that the interrupt handler
- attribute has been applied to a void function. */
- /* FIXME: We should check that reentrant and critical
- functions are not naked and that critical functions
- are not reentrant. */
-
- return NULL_TREE;
}
-#undef TARGET_ATTRIBUTE_TABLE
-#define TARGET_ATTRIBUTE_TABLE msp430_attribute_table
-
-/* Table of MSP430-specific attributes. */
-const struct attribute_spec msp430_attribute_table[] =
-{
- /* Name min_len decl_req, fn_type_req, affects_type_identity
- max_len, type_req, handler. */
- { "interrupt", 0, 1, true, false, false, msp430_attr, false },
- { "naked", 0, 0, true, false, false, msp430_attr, false },
- { "reentrant", 0, 0, true, false, false, msp430_attr, false },
- { "critical", 0, 0, true, false, false, msp430_attr, false },
- { "wakeup", 0, 0, true, false, false, msp430_attr, false },
- { NULL, 0, 0, false, false, false, NULL, false }
-};
-
void
msp430_start_function (FILE *file, const char *name, tree decl)
{
{
char buf[101];
+ /* Interrupt vector sections should be unique, but use of weak
+ functions implies multiple definitions. */
+ if (DECL_WEAK (decl))
+ {
+ error ("argument to interrupt attribute is unsupported for weak functions");
+ }
+
intr_vector = TREE_VALUE (intr_vector);
/* The interrupt attribute has a vector value. Turn this into a
}
switch_to_section (function_section (decl));
+ ASM_OUTPUT_TYPE_DIRECTIVE(file, name, "function");
ASM_OUTPUT_FUNCTION_LABEL (file, name, decl);
}
+static const char * const lower_prefix = ".lower";
+static const char * const upper_prefix = ".upper";
+static const char * const either_prefix = ".either";
+
+/* Generate a prefix for a section name, based upon
+ the region into which the object should be placed. */
+
+static const char *
+gen_prefix (tree decl)
+{
+ if (DECL_ONE_ONLY (decl))
+ return NULL;
+
+ /* If the user has specified a particular section then do not use any prefix. */
+ if (has_attr ("section", decl))
+ return NULL;
+
+ /* If the function has been put in the .lowtext section (because it is an
+ interrupt handler, and the large memory model is used), then do not add
+ any prefixes. */
+ if (has_section_name (".lowtext", decl))
+ return NULL;
+
+ /* If the object has __attribute__((lower)) then use the ".lower." prefix. */
+ if (has_attr (ATTR_LOWER, decl))
+ return lower_prefix;
+
+ /* If we are compiling for the MSP430 then we do not support the upper region. */
+ if (! msp430x)
+ return NULL;
+
+ if (has_attr (ATTR_UPPER, decl))
+ return upper_prefix;
+
+ if (has_attr (ATTR_EITHER, decl))
+ return either_prefix;
+
+ if (TREE_CODE (decl) == FUNCTION_DECL)
+ {
+ if (msp430_code_region == MSP430_REGION_LOWER)
+ return lower_prefix;
+
+ if (msp430_code_region == MSP430_REGION_UPPER)
+ return upper_prefix;
+
+ if (msp430_code_region == MSP430_REGION_EITHER)
+ return either_prefix;
+ }
+ else
+ {
+ if (msp430_data_region == MSP430_REGION_LOWER)
+ return lower_prefix;
+
+ if (msp430_data_region == MSP430_REGION_UPPER)
+ return upper_prefix;
+
+ if (msp430_data_region == MSP430_REGION_EITHER)
+ return either_prefix;
+ }
+
+ return NULL;
+}
+
+static section * noinit_section;
+static section * persist_section;
+
+#undef TARGET_ASM_INIT_SECTIONS
+#define TARGET_ASM_INIT_SECTIONS msp430_init_sections
+
+static void
+msp430_init_sections (void)
+{
+ noinit_section = get_unnamed_section (0, output_section_asm_op, ".section .noinit,\"aw\"");
+ persist_section = get_unnamed_section (0, output_section_asm_op, ".section .persistent,\"aw\"");
+}
+
+#undef TARGET_ASM_SELECT_SECTION
+#define TARGET_ASM_SELECT_SECTION msp430_select_section
+
static section *
-msp430_function_section (tree decl, enum node_frequency freq, bool startup, bool exit)
+msp430_select_section (tree decl, int reloc, unsigned HOST_WIDE_INT align)
{
+ gcc_assert (decl != NULL_TREE);
+
+ if (TREE_CODE (decl) == STRING_CST
+ || TREE_CODE (decl) == CONSTRUCTOR
+ || TREE_CODE (decl) == INTEGER_CST
+ || TREE_CODE (decl) == VECTOR_CST
+ || TREE_CODE (decl) == COMPLEX_CST)
+ return default_select_section (decl, reloc, align);
+
/* In large mode we must make sure that interrupt handlers are put into
low memory as the vector table only accepts 16-bit addresses. */
- if (TARGET_LARGE
- && lookup_attribute ("interrupt", DECL_ATTRIBUTES (decl)))
+ if (TARGET_LARGE && TREE_CODE (decl) == FUNCTION_DECL && is_interrupt_func (decl))
return get_section (".lowtext", SECTION_CODE | SECTION_WRITE , decl);
- /* Otherwise, use the default function section. */
- return default_function_section (decl, freq, startup, exit);
+ const char * prefix = gen_prefix (decl);
+ if (prefix == NULL)
+ {
+ if (TREE_CODE (decl) == FUNCTION_DECL)
+ return text_section;
+ else if (has_attr (ATTR_NOINIT, decl))
+ return noinit_section;
+ else if (has_attr (ATTR_PERSIST, decl))
+ return persist_section;
+ else
+ return default_select_section (decl, reloc, align);
+ }
+
+ const char * sec;
+ switch (categorize_decl_for_section (decl, reloc))
+ {
+ case SECCAT_TEXT: sec = ".text"; break;
+ case SECCAT_DATA: sec = ".data"; break;
+ case SECCAT_BSS: sec = ".bss"; break;
+ case SECCAT_RODATA: sec = ".rodata"; break;
+
+ case SECCAT_RODATA_MERGE_STR:
+ case SECCAT_RODATA_MERGE_STR_INIT:
+ case SECCAT_RODATA_MERGE_CONST:
+ case SECCAT_SRODATA:
+ case SECCAT_DATA_REL:
+ case SECCAT_DATA_REL_LOCAL:
+ case SECCAT_DATA_REL_RO:
+ case SECCAT_DATA_REL_RO_LOCAL:
+ case SECCAT_SDATA:
+ case SECCAT_SBSS:
+ case SECCAT_TDATA:
+ case SECCAT_TBSS:
+ return default_select_section (decl, reloc, align);
+
+ default:
+ gcc_unreachable ();
+ }
+
+ const char * dec_name = DECL_SECTION_NAME (decl);
+ char * name = ACONCAT ((prefix, sec, dec_name, NULL));
+
+ return get_named_section (decl, name, 0);
}
#undef TARGET_ASM_FUNCTION_SECTION
#define TARGET_ASM_FUNCTION_SECTION msp430_function_section
+static section *
+msp430_function_section (tree decl, enum node_frequency freq, bool startup, bool exit)
+{
+ const char * name;
+
+ gcc_assert (DECL_SECTION_NAME (decl) != NULL);
+ name = DECL_SECTION_NAME (decl);
+
+ const char * prefix = gen_prefix (decl);
+ if (prefix == NULL
+ || strncmp (name, prefix, strlen (prefix)) == 0)
+ return default_function_section (decl, freq, startup, exit);
+
+ name = ACONCAT ((prefix, name, NULL));
+ return get_named_section (decl, name, 0);
+}
+
+#undef TARGET_SECTION_TYPE_FLAGS
+#define TARGET_SECTION_TYPE_FLAGS msp430_section_type_flags
+
+unsigned int
+msp430_section_type_flags (tree decl, const char * name, int reloc)
+{
+ if (strncmp (name, lower_prefix, strlen (lower_prefix)) == 0)
+ name += strlen (lower_prefix);
+ else if (strncmp (name, upper_prefix, strlen (upper_prefix)) == 0)
+ name += strlen (upper_prefix);
+ else if (strncmp (name, either_prefix, strlen (either_prefix)) == 0)
+ name += strlen (either_prefix);
+ else if (strcmp (name, ".noinit") == 0)
+ return SECTION_WRITE | SECTION_BSS | SECTION_NOTYPE;
+ else if (strcmp (name, ".persistent") == 0)
+ return SECTION_WRITE | SECTION_NOTYPE;
+
+ return default_section_type_flags (decl, name, reloc);
+}
+
+#undef TARGET_ASM_UNIQUE_SECTION
+#define TARGET_ASM_UNIQUE_SECTION msp430_unique_section
+
+static void
+msp430_unique_section (tree decl, int reloc)
+{
+ gcc_assert (decl != NULL_TREE);
+
+ /* In large mode we must make sure that interrupt handlers are put into
+ low memory as the vector table only accepts 16-bit addresses. */
+ if (TARGET_LARGE && TREE_CODE (decl) == FUNCTION_DECL && is_interrupt_func (decl))
+ {
+ set_decl_section_name (decl, ".lowtext");
+ return;
+ }
+
+ default_unique_section (decl, reloc);
+
+ const char * prefix;
+
+ if ( TREE_CODE (decl) == STRING_CST
+ || TREE_CODE (decl) == CONSTRUCTOR
+ || TREE_CODE (decl) == INTEGER_CST
+ || TREE_CODE (decl) == VECTOR_CST
+ || TREE_CODE (decl) == COMPLEX_CST
+ || (prefix = gen_prefix (decl)) == NULL
+ )
+ return;
+
+ const char * dec_name = DECL_SECTION_NAME (decl);
+ char * name = ACONCAT ((prefix, dec_name, NULL));
+
+ set_decl_section_name (decl, name);
+}
+
+/* Emit a declaration of a common symbol.
+ If a data region is in use then put the symbol into the
+ equivalent .bss section instead. */
+
+void
+msp430_output_aligned_decl_common (FILE * stream,
+ const tree decl,
+ const char * name,
+ unsigned HOST_WIDE_INT size,
+ unsigned int align)
+{
+ if (msp430_data_region == MSP430_REGION_ANY)
+ {
+ fprintf (stream, COMMON_ASM_OP);
+ assemble_name (stream, name);
+ fprintf (stream, "," HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",
+ size, align / BITS_PER_UNIT);
+ }
+ else
+ {
+ section * sec;
+
+ if (decl)
+ sec = msp430_select_section (decl, 0, align);
+ else
+ switch (msp430_data_region)
+ {
+ case MSP430_REGION_UPPER: sec = get_named_section (NULL, ".upper.bss", 0); break;
+ case MSP430_REGION_LOWER: sec = get_named_section (NULL, ".lower.bss", 0); break;
+ case MSP430_REGION_EITHER: sec = get_named_section (NULL, ".either.bss", 0); break;
+ default:
+ gcc_unreachable ();
+ }
+ gcc_assert (sec != NULL);
+
+ switch_to_section (sec);
+ ASM_OUTPUT_ALIGN (stream, floor_log2 (align / BITS_PER_UNIT));
+ targetm.asm_out.globalize_label (stream, name);
+ ASM_WEAKEN_LABEL (stream, name);
+ ASM_OUTPUT_LABEL (stream, name);
+ ASM_OUTPUT_SKIP (stream, size ? size : 1);
+ }
+}
+
+bool
+msp430_do_not_relax_short_jumps (void)
+{
+ /* When placing code into "either" low or high memory we do not want the linker
+ to grow the size of sections, which it can do if it is encounters a branch to
+ a label that is too far away. So we tell the cbranch patterns to avoid using
+ short jumps when there is a chance that the instructions will end up in a low
+ section. */
+ return
+ msp430_code_region == MSP430_REGION_EITHER
+ || msp430_code_region == MSP430_REGION_LOWER
+ || has_attr (ATTR_EITHER, current_function_decl)
+ || has_attr (ATTR_LOWER, current_function_decl);
+}
+
enum msp430_builtin
{
MSP430_BUILTIN_BIC_SR,
MSP430_BUILTIN_BIS_SR,
+ MSP430_BUILTIN_DELAY_CYCLES,
MSP430_BUILTIN_max
};
msp430_init_builtins (void)
{
tree void_ftype_int = build_function_type_list (void_type_node, integer_type_node, NULL);
+ tree void_ftype_longlong = build_function_type_list (void_type_node, long_long_integer_type_node, NULL);
msp430_builtins[MSP430_BUILTIN_BIC_SR] =
add_builtin_function ( "__bic_SR_register_on_exit", void_ftype_int,
msp430_builtins[MSP430_BUILTIN_BIS_SR] =
add_builtin_function ( "__bis_SR_register_on_exit", void_ftype_int,
MSP430_BUILTIN_BIS_SR, BUILT_IN_MD, NULL, NULL_TREE);
+
+ msp430_builtins[MSP430_BUILTIN_DELAY_CYCLES] =
+ add_builtin_function ( "__delay_cycles", void_ftype_longlong,
+ MSP430_BUILTIN_DELAY_CYCLES, BUILT_IN_MD, NULL, NULL_TREE);
}
static tree
{
case MSP430_BUILTIN_BIC_SR:
case MSP430_BUILTIN_BIS_SR:
+ case MSP430_BUILTIN_DELAY_CYCLES:
return msp430_builtins[code];
default:
return error_mark_node;
}
}
+/* These constants are really register reads, which are faster than
+ regular constants. */
+static int
+cg_magic_constant (HOST_WIDE_INT c)
+{
+ switch (c)
+ {
+ case 0xffff:
+ case -1:
+ case 0:
+ case 1:
+ case 2:
+ case 4:
+ case 8:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+static rtx
+msp430_expand_delay_cycles (rtx arg)
+{
+ HOST_WIDE_INT i, c, n;
+ /* extra cycles for MSP430X instructions */
+#define CYCX(M,X) (msp430x ? (X) : (M))
+
+ if (GET_CODE (arg) != CONST_INT)
+ {
+ error ("__delay_cycles() only takes constant arguments");
+ return NULL_RTX;
+ }
+
+ c = INTVAL (arg);
+
+ if (HOST_BITS_PER_WIDE_INT > 32)
+ {
+ if (c < 0)
+ {
+ error ("__delay_cycles only takes non-negative cycle counts");
+ return NULL_RTX;
+ }
+ }
+
+ emit_insn (gen_delay_cycles_start (arg));
+
+ /* For 32-bit loops, there's 13(16) + 5(min(x,0x10000) + 6x cycles. */
+ if (c > 3 * 0xffff + CYCX (7, 10))
+ {
+ n = c;
+ /* There's 4 cycles in the short (i>0xffff) loop and 7 in the long (x<=0xffff) loop */
+ if (c >= 0x10000 * 7 + CYCX (14, 16))
+ {
+ i = 0x10000;
+ c -= CYCX (14, 16) + 7 * 0x10000;
+ i += c / 4;
+ c %= 4;
+ if ((unsigned long long) i > 0xffffffffULL)
+ {
+ error ("__delay_cycles is limited to 32-bit loop counts");
+ return NULL_RTX;
+ }
+ }
+ else
+ {
+ i = (c - CYCX (14, 16)) / 7;
+ c -= CYCX (14, 16) + i * 7;
+ }
+
+ if (cg_magic_constant (i & 0xffff))
+ c ++;
+ if (cg_magic_constant ((i >> 16) & 0xffff))
+ c ++;
+
+ if (msp430x)
+ emit_insn (gen_delay_cycles_32x (GEN_INT (i), GEN_INT (n - c)));
+ else
+ emit_insn (gen_delay_cycles_32 (GEN_INT (i), GEN_INT (n - c)));
+ }
+
+ /* For 16-bit loops, there's 7(10) + 3x cycles - so the max cycles is 0x30004(7). */
+ if (c > 12)
+ {
+ n = c;
+ i = (c - CYCX (7, 10)) / 3;
+ c -= CYCX (7, 10) + i * 3;
+
+ if (cg_magic_constant (i))
+ c ++;
+
+ if (msp430x)
+ emit_insn (gen_delay_cycles_16x (GEN_INT (i), GEN_INT (n - c)));
+ else
+ emit_insn (gen_delay_cycles_16 (GEN_INT (i), GEN_INT (n - c)));
+ }
+
+ while (c > 1)
+ {
+ emit_insn (gen_delay_cycles_2 ());
+ c -= 2;
+ }
+
+ if (c)
+ {
+ emit_insn (gen_delay_cycles_1 ());
+ c -= 1;
+ }
+
+ emit_insn (gen_delay_cycles_end (arg));
+
+ return NULL_RTX;
+}
+
static rtx
msp430_expand_builtin (tree exp,
rtx target ATTRIBUTE_UNUSED,
rtx subtarget ATTRIBUTE_UNUSED,
- enum machine_mode mode ATTRIBUTE_UNUSED,
+ machine_mode mode ATTRIBUTE_UNUSED,
int ignore ATTRIBUTE_UNUSED)
{
tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0);
unsigned int fcode = DECL_FUNCTION_CODE (fndecl);
rtx arg1 = expand_normal (CALL_EXPR_ARG (exp, 0));
+ if (fcode == MSP430_BUILTIN_DELAY_CYCLES)
+ return msp430_expand_delay_cycles (arg1);
+
if (! msp430_is_interrupt_func ())
{
error ("MSP430 builtin functions only work inside interrupt handlers");
rtx p;
if (is_naked_func ())
- return;
+ {
+ /* We must generate some RTX as thread_prologue_and_epilogue_insns()
+ examines the output of the gen_prologue() function. */
+ emit_insn (gen_rtx_CLOBBER (VOIDmode, GEN_INT (0)));
+ return;
+ }
emit_insn (gen_prologue_start_marker ());
p = emit_insn (gen_grow_and_swap ());
/* Document the stack decrement... */
- note = F (gen_rtx_SET (Pmode, stack_pointer_rtx,
+ note = F (gen_rtx_SET (stack_pointer_rtx,
gen_rtx_MINUS (Pmode, stack_pointer_rtx, GEN_INT (2))));
add_reg_note (p, REG_FRAME_RELATED_EXPR, note);
/* ...and the establishment of a new location for the return address. */
- note = F (gen_rtx_SET (Pmode, gen_rtx_MEM (Pmode,
- gen_rtx_PLUS (Pmode, stack_pointer_rtx, GEN_INT (-2))),
+ note = F (gen_rtx_SET (gen_rtx_MEM (Pmode,
+ gen_rtx_PLUS (Pmode,
+ stack_pointer_rtx,
+ GEN_INT (-2))),
pc_rtx));
add_reg_note (p, REG_CFA_OFFSET, note);
F (p);
note = gen_rtx_SEQUENCE (VOIDmode, rtvec_alloc (count + 1));
XVECEXP (note, 0, 0)
- = F (gen_rtx_SET (VOIDmode,
- stack_pointer_rtx,
- gen_rtx_PLUS (Pmode,
- stack_pointer_rtx,
- GEN_INT (count * (TARGET_LARGE ? -4 : -2)))));
+ = F (gen_rtx_SET (stack_pointer_rtx,
+ gen_rtx_PLUS (Pmode,
+ stack_pointer_rtx,
+ GEN_INT (count * (TARGET_LARGE ? -4 : -2)))));
/* *sp-- = R[i-j] */
/* sp+N R10
addr = stack_pointer_rtx;
XVECEXP (note, 0, j + 1) =
- F (gen_rtx_SET (VOIDmode,
- gen_rtx_MEM (Pmode, addr),
+ F (gen_rtx_SET (gen_rtx_MEM (Pmode, addr),
gen_rtx_REG (Pmode, i - j)) );
}
int helper_n = 0;
if (is_naked_func ())
- return;
+ {
+ /* We must generate some RTX as thread_prologue_and_epilogue_insns()
+ examines the output of the gen_epilogue() function. */
+ emit_insn (gen_rtx_CLOBBER (VOIDmode, GEN_INT (0)));
+ return;
+ }
if (cfun->machine->need_to_save [10])
{
emit_move_insn (tmp, ra);
}
+#undef TARGET_INIT_DWARF_REG_SIZES_EXTRA
+#define TARGET_INIT_DWARF_REG_SIZES_EXTRA msp430_init_dwarf_reg_sizes_extra
+void
+msp430_init_dwarf_reg_sizes_extra (tree address)
+{
+ int i;
+ rtx addr = expand_normal (address);
+ rtx mem = gen_rtx_MEM (BLKmode, addr);
+
+ /* This needs to match msp430_unwind_word_mode (above). */
+ if (!msp430x)
+ return;
+
+ for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
+ {
+ unsigned int dnum = DWARF_FRAME_REGNUM (i);
+ unsigned int rnum = DWARF2_FRAME_REG_OUT (dnum, 1);
+
+ if (rnum < DWARF_FRAME_REGISTERS)
+ {
+ HOST_WIDE_INT offset = rnum * GET_MODE_SIZE (QImode);
+
+ emit_move_insn (adjust_address (mem, QImode, offset),
+ gen_int_mode (4, QImode));
+ }
+ }
+}
+
/* This is a list of MD patterns that implement fixed-count shifts. */
static struct
{
}
const_shift_helpers[] =
{
-#define CSH(N,C,X,G) { "__mspabi_"N, C, X, gen_##G }
+#define CSH(N,C,X,G) { "__mspabi_" N, C, X, gen_##G }
CSH ("slli", 1, 1, slli_1),
CSH ("slll", 1, 1, slll_1),
char *helper_const = NULL;
int arg2 = 13;
int arg1sz = 1;
- enum machine_mode arg0mode = GET_MODE (operands[0]);
- enum machine_mode arg1mode = GET_MODE (operands[1]);
- enum machine_mode arg2mode = GET_MODE (operands[2]);
+ machine_mode arg0mode = GET_MODE (operands[0]);
+ machine_mode arg1mode = GET_MODE (operands[1]);
+ machine_mode arg2mode = GET_MODE (operands[2]);
int have_430x = msp430x ? 1 : 0;
if (CONST_INT_P (operands[2]))
/* Called by cbranch<mode>4 to coerce operands into usable forms. */
void
-msp430_fixup_compare_operands (enum machine_mode my_mode, rtx * operands)
+msp430_fixup_compare_operands (machine_mode my_mode, rtx * operands)
{
/* constants we're looking for, not constants which are allowed. */
int const_op_idx = 1;
need it to below, so we use this function for when we must get a
valid subreg in a "natural" state. */
rtx
-msp430_subreg (enum machine_mode mode, rtx r, enum machine_mode omode, int byte)
+msp430_subreg (machine_mode mode, rtx r, machine_mode omode, int byte)
{
rtx rv;
&& SUBREG_BYTE (r) == 0)
{
rtx ireg = SUBREG_REG (r);
- enum machine_mode imode = GET_MODE (ireg);
+ machine_mode imode = GET_MODE (ireg);
/* special case for (HI (SI (PSI ...), 0)) */
if (imode == PSImode
}
else if (GET_CODE (r) == MEM)
rv = adjust_address (r, mode, byte);
+ else if (GET_CODE (r) == SYMBOL_REF
+ && (byte == 0 || byte == 2)
+ && mode == HImode)
+ {
+ rv = gen_rtx_ZERO_EXTRACT (HImode, r, GEN_INT (16), GEN_INT (8*byte));
+ rv = gen_rtx_CONST (HImode, r);
+ }
else
rv = simplify_gen_subreg (mode, r, omode, byte);
{ "__divsi3", "__mspabi_divli" },
{ "__divdi3", "__mspabi_divlli" },
{ "__udivhi3", "__mspabi_divu" },
- { "__udivsi3", "__mspabi_divlu" },
- { "__udivdi3", "__mspabi_divllu" },
+ { "__udivsi3", "__mspabi_divul" },
+ { "__udivdi3", "__mspabi_divull" },
{ "__modhi3", "__mspabi_remi" },
{ "__modsi3", "__mspabi_remli" },
{ "__moddi3", "__mspabi_remlli" },
{ NULL, NULL }
};
-/* Returns true if the current MCU is an F5xxx series. */
+/* Returns true if the current MCU supports an F5xxx series
+ hardware multiper. */
+
bool
msp430_use_f5_series_hwmult (void)
{
- if (msp430_hwmult_type == F5SERIES)
+ static const char * cached_match = NULL;
+ static bool cached_result;
+
+ if (msp430_hwmult_type == MSP430_HWMULT_F5SERIES)
return true;
- if (target_mcu == NULL || msp430_hwmult_type != AUTO)
+ if (target_mcu == NULL || msp430_hwmult_type != MSP430_HWMULT_AUTO)
return false;
- return strncasecmp (target_mcu, "msp430f5", 8) == 0;
+ if (target_mcu == cached_match)
+ return cached_result;
+
+ cached_match = target_mcu;
+
+ if (strncasecmp (target_mcu, "msp430f5", 8) == 0)
+ return cached_result = true;
+ if (strncasecmp (target_mcu, "msp430fr5", 9) == 0)
+ return cached_result = true;
+ if (strncasecmp (target_mcu, "msp430f6", 8) == 0)
+ return cached_result = true;
+
+ int i;
+
+ /* FIXME: This array is alpha sorted - we could use a binary search. */
+ for (i = ARRAY_SIZE (msp430_mcu_data); i--;)
+ if (strcasecmp (target_mcu, msp430_mcu_data[i].name) == 0)
+ return cached_result = msp430_mcu_data[i].hwmpy == 8;
+
+ return cached_result = false;
}
-/* Returns true id the current MCU has a second generation 32-bit hardware multiplier. */
+/* Returns true if the current MCU has a second generation
+ 32-bit hardware multiplier. */
+
static bool
use_32bit_hwmult (void)
{
- static const char * known_32bit_mult_mcus [] =
- {
- "msp430f4783", "msp430f4793", "msp430f4784",
- "msp430f4794", "msp430f47126", "msp430f47127",
- "msp430f47163", "msp430f47173", "msp430f47183",
- "msp430f47193", "msp430f47166", "msp430f47176",
- "msp430f47186", "msp430f47196", "msp430f47167",
- "msp430f47177", "msp430f47187", "msp430f47197"
- };
+ static const char * cached_match = NULL;
+ static bool cached_result;
int i;
- if (msp430_hwmult_type == LARGE)
+ if (msp430_hwmult_type == MSP430_HWMULT_LARGE)
return true;
- if (target_mcu == NULL || msp430_hwmult_type != AUTO)
+ if (target_mcu == NULL || msp430_hwmult_type != MSP430_HWMULT_AUTO)
return false;
- for (i = ARRAY_SIZE (known_32bit_mult_mcus); i--;)
- if (strcasecmp (target_mcu, known_32bit_mult_mcus[i]) == 0)
- return true;
+ if (target_mcu == cached_match)
+ return cached_result;
- return false;
+ cached_match = target_mcu;
+
+ /* FIXME: This array is alpha sorted - we could use a binary search. */
+ for (i = ARRAY_SIZE (msp430_mcu_data); i--;)
+ if (strcasecmp (target_mcu, msp430_mcu_data[i].name) == 0)
+ return cached_result = msp430_mcu_data[i].hwmpy == 4;
+
+ return cached_result = false;
+}
+
+/* Returns true if the current MCU does not have a
+ hardware multiplier of any kind. */
+
+static bool
+msp430_no_hwmult (void)
+{
+ static const char * cached_match = NULL;
+ static bool cached_result;
+ int i;
+
+ if (msp430_hwmult_type == MSP430_HWMULT_NONE)
+ return true;
+
+ if (msp430_hwmult_type != MSP430_HWMULT_AUTO)
+ return false;
+
+ if (target_mcu == NULL)
+ return true;
+
+ if (target_mcu == cached_match)
+ return cached_result;
+
+ cached_match = target_mcu;
+
+ /* FIXME: This array is alpha sorted - we could use a binary search. */
+ for (i = ARRAY_SIZE (msp430_mcu_data); i--;)
+ if (strcasecmp (target_mcu, msp430_mcu_data[i].name) == 0)
+ return cached_result = msp430_mcu_data[i].hwmpy == 0;
+
+ /* If we do not recognise the MCU name, we assume that it does not support
+ any kind of hardware multiply - this is the safest assumption to make. */
+ return cached_result = true;
}
/* This function does the same as the default, but it will replace GCC
function names with the MSPABI-specified ones. */
+
void
msp430_output_labelref (FILE *file, const char *name)
{
/* If we have been given a specific MCU name then we may be
able to make use of its hardware multiply capabilities. */
- if (msp430_hwmult_type != NONE)
+ if (msp430_hwmult_type != MSP430_HWMULT_NONE)
{
if (strcmp ("__mspabi_mpyi", name) == 0)
{
if (msp430_use_f5_series_hwmult ())
name = "__mulhi2_f5";
- else
+ else if (! msp430_no_hwmult ())
name = "__mulhi2";
}
else if (strcmp ("__mspabi_mpyl", name) == 0)
name = "__mulsi2_f5";
else if (use_32bit_hwmult ())
name = "__mulsi2_hw32";
- else
+ else if (! msp430_no_hwmult ())
name = "__mulsi2";
}
}
+ if (user_label_prefix[0] != 0)
+ fputs (user_label_prefix, file);
+
fputs (name, file);
}
}
}
+#undef TARGET_ASM_ALIGNED_PSI_OP
+#define TARGET_ASM_ALIGNED_PSI_OP "\t.long\t"
+#undef TARGET_ASM_UNALIGNED_PSI_OP
+#define TARGET_ASM_UNALIGNED_PSI_OP TARGET_ASM_ALIGNED_PSI_OP
+
#undef TARGET_PRINT_OPERAND_ADDRESS
#define TARGET_PRINT_OPERAND_ADDRESS msp430_print_operand_addr
is ADDR. */
static void
-msp430_print_operand_addr (FILE * file, rtx addr)
+msp430_print_operand_addr (FILE * file, machine_mode /*mode*/, rtx addr)
{
switch (GET_CODE (addr))
{
case 'b':
switch (GET_MODE (op))
{
- case QImode: fprintf (file, ".B"); return;
- case HImode: fprintf (file, ".W"); return;
- case PSImode: fprintf (file, ".A"); return;
- case SImode: fprintf (file, ".A"); return;
+ case E_QImode: fprintf (file, ".B"); return;
+ case E_HImode: fprintf (file, ".W"); return;
+ case E_PSImode: fprintf (file, ".A"); return;
+ case E_SImode: fprintf (file, ".A"); return;
default:
return;
}
case 'X':
/* This is used to turn, for example, an ADD opcode into an ADDX
opcode when we're using 20-bit addresses. */
- if (TARGET_LARGE)
+ if (TARGET_LARGE || GET_MODE (op) == PSImode)
fprintf (file, "X");
/* We don't care which operand we use, but we want 'X' in the MD
file, so we do it this way. */
case 'x':
/* Similarly, but only for PSImodes. BIC, for example, needs this. */
- if (TARGET_LARGE && GET_MODE (op) == PSImode)
+ if (GET_MODE (op) == PSImode)
fprintf (file, "X");
return;
because builtins are expanded before the frame layout is determined. */
fprintf (file, "%d",
msp430_initial_elimination_offset (ARG_POINTER_REGNUM, STACK_POINTER_REGNUM)
- - 2);
+ - (TARGET_LARGE ? 4 : 2));
return;
case 'J':
case MEM:
addr = XEXP (op, 0);
- msp430_print_operand_addr (file, addr);
+ msp430_print_operand_addr (file, GET_MODE (op), addr);
break;
- case CONST_INT:
case CONST:
+ if (GET_CODE (XEXP (op, 0)) == ZERO_EXTRACT)
+ {
+ op = XEXP (op, 0);
+ switch (INTVAL (XEXP (op, 2)))
+ {
+ case 0:
+ fprintf (file, "#lo (");
+ msp430_print_operand_raw (file, XEXP (op, 0));
+ fprintf (file, ")");
+ break;
+
+ case 16:
+ fprintf (file, "#hi (");
+ msp430_print_operand_raw (file, XEXP (op, 0));
+ fprintf (file, ")");
+ break;
+
+ default:
+ output_operand_lossage ("invalid zero extract");
+ break;
+ }
+ break;
+ }
+ /* Fall through. */
+ case CONST_INT:
case SYMBOL_REF:
case LABEL_REF:
if (letter == 0)
right shift instruction to perform the rest of the shift. */
return "rrum.w\t#1, %0 { rpt\t%Z2 { rrax.w\t%0"; /* Six bytes. */
}
+
+/* Stop GCC from thinking that it can eliminate (SUBREG:PSI (SI)). */
+
+#undef TARGET_CAN_CHANGE_MODE_CLASS
+#define TARGET_CAN_CHANGE_MODE_CLASS msp430_can_change_mode_class
+
+static bool
+msp430_can_change_mode_class (machine_mode from, machine_mode to, reg_class_t)
+{
+ if ((to == PSImode && from == SImode)
+ || (to == SImode && from == PSImode)
+ || (to == DImode && from == PSImode)
+ || (to == PSImode && from == DImode))
+ return false;
+ return true;
+}
\f
+#undef TARGET_HAVE_SPECULATION_SAFE_VALUE
+#define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed
+
struct gcc_target targetm = TARGET_INITIALIZER;
#include "gt-msp430.h"
projects / thirdparty / gcc.git / blobdiff