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Index: gcc/config/avr/predicates.md
===================================================================
--- gcc/config/avr/predicates.md (revision 134489)
+++ gcc/config/avr/predicates.md (working copy)
@@ -27,6 +27,11 @@
(and (match_code "reg")
(match_test "REGNO (op) >= 16 && REGNO (op) <= 31")))
+;; Registers from r16 to 24.
+(define_predicate "a_register_operand"
+ (and (match_code "reg")
+ (match_test "REGNO (op) >= 16 && REGNO (op) <= 24")))
+
(define_predicate "even_register_operand"
(and (match_code "reg")
(and (match_test "REGNO (op) <= 31")
--- gcc/config/avr/avr.md.orig 2008-12-02 12:44:25.418762100 -0700
+++ gcc/config/avr/avr.md 2008-12-02 15:31:40.788948300 -0700
@@ -49,12 +49,26 @@
(UNSPEC_STRLEN 0)
(UNSPEC_INDEX_JMP 1)
- (UNSPEC_SEI 2)
- (UNSPEC_CLI 3)
- (UNSPEC_SWAP 4)
-
+ (UNSPEC_SWAP 2)
+ (UNSPEC_FMUL 3)
+ (UNSPEC_FMULS 4)
+ (UNSPEC_FMULSU 5)
+
(UNSPECV_PROLOGUE_SAVES 0)
- (UNSPECV_EPILOGUE_RESTORES 1)])
+ (UNSPECV_EPILOGUE_RESTORES 1)
+ (UNSPECV_SEI 2)
+ (UNSPECV_CLI 3)
+ (UNSPECV_NOP 4)
+ (UNSPECV_NOP2 5)
+ (UNSPECV_SLEEP 6)
+ (UNSPECV_WDR 7)
+
+ (UNSPECV_DELAY_CYCLES 100)
+ (UNSPECV_DELAY_CYCLES_1 101)
+ (UNSPECV_DELAY_CYCLES_2 102)
+ (UNSPECV_DELAY_CYCLES_3 103)
+ (UNSPECV_DELAY_CYCLES_4 104)])
+
(include "predicates.md")
(include "constraints.md")
@@ -2537,13 +2551,6 @@
(const_int 1))
(const_int 3)])])
-(define_insn "nop"
- [(const_int 0)]
- ""
- "nop"
- [(set_attr "cc" "none")
- (set_attr "length" "1")])
-
; indirect jump
(define_insn "indirect_jump"
[(set (pc) (match_operand:HI 0 "register_operand" "!z,*r"))]
@@ -2923,7 +2930,7 @@
;; Enable Interrupts
(define_insn "enable_interrupt"
- [(unspec [(const_int 0)] UNSPEC_SEI)]
+ [(unspec_volatile [(const_int 0)] UNSPECV_SEI)]
""
"sei"
[(set_attr "length" "1")
@@ -2932,7 +2939,7 @@
;; Disable Interrupts
(define_insn "disable_interrupt"
- [(unspec [(const_int 0)] UNSPEC_CLI)]
+ [(unspec_volatile [(const_int 0)] UNSPECV_CLI)]
""
"cli"
[(set_attr "length" "1")
@@ -3032,3 +3039,219 @@
expand_epilogue ();
DONE;
}")
+
+;;delay_cycles_delay_cycles_delay_cycles_delay_cycles_delay_cycles_delay
+;; delay_cycles
+
+(define_expand "delay_cycles"
+ [(unspec_volatile [(match_operand:SI 0 "const_int_operand" "i")]
+ UNSPECV_DELAY_CYCLES)]
+ ""
+ "
+ rtx loop_reg;
+ unsigned int cycles = INTVAL (operands[0]);
+ if (IN_RANGE(cycles, 83886082, 0xFFFFFFFF))
+ {
+ unsigned int loop_count = ((cycles - 9) / 6) + 1;
+ unsigned int cycles_used = (((loop_count - 1) * 6) + 9);
+ emit_insn (gen_delay_cycles_4 (gen_int_mode (loop_count, SImode)));
+ cycles -= cycles_used;
+ }
+ if (IN_RANGE(cycles, 262145, 83886081))
+ {
+ unsigned int loop_count = ((cycles - 7) / 5) + 1;
+ if (loop_count > 0xFFFFFF)
+ loop_count = 0xFFFFFF;
+ unsigned int cycles_used = (((loop_count - 1) * 5) + 7);
+ emit_insn (gen_delay_cycles_3 (gen_int_mode (loop_count, SImode)));
+ cycles -= cycles_used;
+ }
+ if (IN_RANGE(cycles, 768, 262144))
+ {
+ unsigned int loop_count = ((cycles - 5) / 4) + 1;
+ if (loop_count > 0xFFFF)
+ loop_count = 0xFFFF;
+ unsigned int cycles_used = (((loop_count - 1) * 4) + 5);
+ emit_insn (gen_delay_cycles_2 (gen_int_mode (loop_count, HImode)));
+ cycles -= cycles_used;
+ }
+ if (IN_RANGE(cycles, 6, 767))
+ {
+ unsigned int loop_count = (cycles/ 3);
+ if (loop_count > 255)
+ loop_count = 255;
+ unsigned int cycles_used = (loop_count * 3);
+ emit_insn (gen_delay_cycles_1 (gen_int_mode (loop_count, QImode)));
+ cycles -= cycles_used;
+ }
+ while (cycles >= 2)
+ {
+ emit_insn (gen_nop2 ());
+ cycles -= 2;
+ }
+ if (cycles == 1)
+ {
+ emit_insn (gen_nop ());
+ cycles--;
+ }
+ DONE;
+ ")
+
+(define_insn "delay_cycles_1"
+[(unspec_volatile [(const_int 0)] UNSPECV_DELAY_CYCLES_1)
+ (match_operand:QI 0 "immediate_operand" "")
+ (clobber (match_scratch:QI 1 "=&d"))]
+ ""
+ " ldi %1,lo8(%0)
+ 1:dec %1
+ brne 1b"
+ [(set_attr "length" "3")
+ (set_attr "cc" "clobber")])
+
+(define_insn "delay_cycles_2"
+ [(unspec_volatile [(const_int 0)] UNSPECV_DELAY_CYCLES_2)
+ (match_operand:HI 0 "immediate_operand" "")
+ (clobber (match_scratch:HI 1 "=&w"))]
+ ""
+ " ldi %A1,lo8(%0)
+ ldi %B1,hi8(%0)
+ 1:sbiw %A1,1
+ brne 1b"
+ [(set_attr "length" "4")
+ (set_attr "cc" "clobber")])
+
+(define_insn "delay_cycles_3"
+ [(unspec_volatile [(const_int 0)] UNSPECV_DELAY_CYCLES_3)
+ (match_operand:SI 0 "immediate_operand" "")
+ (clobber (match_scratch:SI 1 "=&d"))]
+ ""
+ " ldi %A1,lo8(%0)
+ ldi %B1,hi8(%0)
+ ldi %C1,hlo8(%0)
+ 1:subi %A1,1
+ sbci %B1,0
+ sbci %C1,0
+ brne 1b"
+ [(set_attr "length" "7")
+ (set_attr "cc" "clobber")])
+
+(define_insn "delay_cycles_4"
+ [(unspec_volatile [(const_int 0)] UNSPECV_DELAY_CYCLES_4)
+ (match_operand:SI 0 "immediate_operand" "")
+ (clobber (match_scratch:SI 1 "=&d"))]
+ ""
+ " ldi %A1,lo8(%0)
+ ldi %B1,hi8(%0)
+ ldi %C1,hlo8(%0)
+ ldi %D1,hhi8(%0)
+ 1:subi %A1,1
+ sbci %B1,0
+ sbci %C1,0
+ sbci %D1,0
+ brne 1b"
+ [(set_attr "length" "9")
+ (set_attr "cc" "clobber")])
+
+;; CPU instructions
+
+;; NOP
+(define_insn "nop"
+ [(unspec_volatile [(const_int 0)] UNSPECV_NOP)]
+ ""
+ "nop"
+ [(set_attr "length" "1")
+ (set_attr "cc" "none")])
+
+;; NOP2
+(define_insn "nop2"
+ [(unspec_volatile [(const_int 0)] UNSPECV_NOP2)]
+ ""
+ "rjmp ."
+ [(set_attr "length" "1")
+ (set_attr "cc" "none")])
+
+;; SEI, Enable Interrupts
+;(define_insn "sei"
+; [(unspec_volatile [(const_int 0)] UNSPECV_SEI)]
+; ""
+; "sei"
+; [(set_attr "length" "1")
+; (set_attr "cc" "none")
+; ])
+
+;; CLI, Disable Interrupts
+;(define_insn "cli"
+; [(unspec_volatile [(const_int 0)] UNSPECV_CLI)]
+; ""
+; "cli"
+; [(set_attr "length" "1")
+; (set_attr "cc" "none")
+; ])
+
+;; SLEEP
+(define_insn "sleep"
+ [(unspec_volatile [(const_int 0)] UNSPECV_SLEEP)]
+ ""
+ "sleep"
+ [(set_attr "length" "1")
+ (set_attr "cc" "none")
+ ])
+
+;; WDR
+(define_insn "wdr"
+ [(unspec_volatile [(const_int 0)] UNSPECV_WDR)]
+ ""
+ "wdr"
+ [(set_attr "length" "1")
+ (set_attr "cc" "none")
+ ])
+
+;; SWAP
+(define_insn "swap"
+ [(set (match_operand:QI 0 "register_operand" "=r")
+ (unspec:QI [(match_operand:QI 1 "register_operand" "0")]
+ UNSPEC_SWAP))]
+ ""
+ "swap %0"
+ [(set_attr "length" "1")
+ (set_attr "cc" "none")])
+
+;; FMUL
+(define_insn "fmul"
+ [(set (match_operand:HI 0 "a_register_operand" "=r")
+ (unspec:HI [(match_operand:QI 1 "a_register_operand" "r")
+ (match_operand:QI 2 "a_register_operand" "r")]
+ UNSPEC_FMUL))]
+ "AVR_HAVE_MUL"
+ "fmul %1,%2
+ movw %0,r0
+ clr r1"
+ [(set_attr "length" "3")
+ (set_attr "cc" "clobber")])
+
+;; FMULS
+(define_insn "fmuls"
+ [(set (match_operand:HI 0 "a_register_operand" "=r")
+ (unspec:HI [(match_operand:QI 1 "a_register_operand" "r")
+ (match_operand:QI 2 "a_register_operand" "r")]
+ UNSPEC_FMULS))]
+ "AVR_HAVE_MUL"
+ "fmuls %1,%2
+ movw %0,r0
+ clr r1"
+ [(set_attr "length" "3")
+ (set_attr "cc" "clobber")])
+
+;; FMULSU
+(define_insn "fmulsu"
+ [(set (match_operand:HI 0 "a_register_operand" "=r")
+ (unspec:HI [(match_operand:QI 1 "a_register_operand" "r")
+ (match_operand:QI 2 "a_register_operand" "r")]
+ UNSPEC_FMULSU))]
+ "AVR_HAVE_MUL"
+ "fmulsu %1,%2
+ movw %0,r0
+ clr r1"
+ [(set_attr "length" "3")
+ (set_attr "cc" "clobber")])
+
--- gcc/config/avr/avr.c.orig 2008-12-01 10:51:45.062273700 -0700
+++ gcc/config/avr/avr.c 2008-12-01 11:18:33.980387900 -0700
@@ -30,6 +30,7 @@
#include "insn-config.h"
#include "conditions.h"
#include "insn-attr.h"
+#include "insn-codes.h"
#include "flags.h"
#include "reload.h"
#include "tree.h"
@@ -39,7 +40,9 @@
#include "obstack.h"
#include "function.h"
#include "recog.h"
+#include "optabs.h"
#include "ggc.h"
+#include "langhooks.h"
#include "tm_p.h"
#include "target.h"
#include "target-def.h"
@@ -83,6 +86,9 @@ static bool avr_rtx_costs (rtx, int, int
static int avr_address_cost (rtx);
static bool avr_return_in_memory (const_tree, const_tree);
static struct machine_function * avr_init_machine_status (void);
+static void avr_init_builtins (void);
+static rtx avr_expand_builtin (tree, rtx, rtx, enum machine_mode, int);
+
/* Allocate registers from r25 to r8 for parameters for function calls. */
#define FIRST_CUM_REG 26
@@ -373,6 +379,12 @@ int avr_case_values_threshold = 30000;
#undef TARGET_STRICT_ARGUMENT_NAMING
#define TARGET_STRICT_ARGUMENT_NAMING hook_bool_CUMULATIVE_ARGS_true
+#undef TARGET_INIT_BUILTINS
+#define TARGET_INIT_BUILTINS avr_init_builtins
+
+#undef TARGET_EXPAND_BUILTIN
+#define TARGET_EXPAND_BUILTIN avr_expand_builtin
+
struct gcc_target targetm = TARGET_INITIALIZER;
void
@@ -6258,4 +6270,237 @@ avr_return_in_memory (const_tree type, c
return false;
}
+/* Codes for all the AVR builtins. */
+
+enum avr_builtins
+{
+ AVR_BUILTIN_SEI,
+ AVR_BUILTIN_CLI,
+ AVR_BUILTIN_WDR,
+ AVR_BUILTIN_SLEEP,
+ AVR_BUILTIN_SWAP,
+ AVR_BUILTIN_FMUL,
+ AVR_BUILTIN_FMULS,
+ AVR_BUILTIN_FMULSU,
+ AVR_BUILTIN_DELAY_CYCLES
+};
+
+#define def_builtin(NAME, TYPE, CODE) \
+do { \
+ add_builtin_function ((NAME), (TYPE), (CODE), BUILT_IN_MD, \
+ NULL, NULL_TREE); \
+} while (0)
+
+/* Set up all builtin functions for this target. */
+
+static void
+avr_init_builtins (void)
+{
+ tree void_ftype_void
+ = build_function_type (void_type_node, void_list_node);
+ tree uchar_ftype_uchar
+ = build_function_type_list (unsigned_char_type_node,
+ unsigned_char_type_node,
+ NULL_TREE);
+ tree uint_ftype_uchar_uchar
+ = build_function_type_list (unsigned_type_node,
+ unsigned_char_type_node,
+ unsigned_char_type_node,
+ NULL_TREE);
+ tree int_ftype_char_char
+ = build_function_type_list (integer_type_node,
+ char_type_node,
+ char_type_node,
+ NULL_TREE);
+ tree int_ftype_char_uchar
+ = build_function_type_list (integer_type_node,
+ char_type_node,
+ unsigned_char_type_node,
+ NULL_TREE);
+ tree void_ftype_ulong
+ = build_function_type_list (void_type_node,
+ long_unsigned_type_node,
+ NULL_TREE);
+
+ def_builtin ("__builtin_avr_sei", void_ftype_void, AVR_BUILTIN_SEI);
+ def_builtin ("__builtin_avr_cli", void_ftype_void, AVR_BUILTIN_CLI);
+ def_builtin ("__builtin_avr_wdr", void_ftype_void, AVR_BUILTIN_WDR);
+ def_builtin ("__builtin_avr_sleep", void_ftype_void, AVR_BUILTIN_SLEEP);
+
+ if (AVR_HAVE_MUL)
+ {
+ def_builtin ("__builtin_avr_fmul", uint_ftype_uchar_uchar,
+ AVR_BUILTIN_FMUL);
+ def_builtin ("__builtin_avr_fmuls", int_ftype_char_char,
+ AVR_BUILTIN_FMULS);
+ def_builtin ("__builtin_avr_fmulsu", int_ftype_char_uchar,
+ AVR_BUILTIN_FMULSU);
+ }
+
+ def_builtin ("__builtin_avr_swap", uchar_ftype_uchar, AVR_BUILTIN_SWAP);
+ def_builtin ("__builtin_avr_delay_cycles", void_ftype_ulong,
+ AVR_BUILTIN_DELAY_CYCLES);
+}
+
+struct builtin_description
+{
+ const enum insn_code icode;
+ const char *const name;
+ const enum avr_builtins code;
+};
+
+static const struct builtin_description bdesc_1arg[] =
+{
+ { CODE_FOR_swap, "__builtin_avr_swap", AVR_BUILTIN_SWAP }
+};
+
+static const struct builtin_description bdesc_2arg[] =
+{
+ { CODE_FOR_fmul, "__builtin_avr_fmul", AVR_BUILTIN_FMUL },
+ { CODE_FOR_fmuls, "__builtin_avr_fmuls", AVR_BUILTIN_FMULS },
+ { CODE_FOR_fmulsu, "__builtin_avr_fmulsu", AVR_BUILTIN_FMULSU }
+};
+
+/* Subroutine of avr_expand_builtin to take care of unop insns. */
+
+static rtx
+avr_expand_unop_builtin (enum insn_code icode, tree exp,
+ rtx target)
+{
+ rtx pat;
+ tree arg0 = CALL_EXPR_ARG (exp, 0);
+ rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0);
+ enum machine_mode op0mode = GET_MODE (op0);
+ enum machine_mode tmode = insn_data[icode].operand[0].mode;
+ enum machine_mode mode0 = insn_data[icode].operand[1].mode;
+
+ if (! target
+ || GET_MODE (target) != tmode
+ || ! (*insn_data[icode].operand[0].predicate) (target, tmode))
+ target = gen_reg_rtx (tmode);
+
+ if (op0mode == SImode && mode0 == HImode)
+ {
+ op0mode = HImode;
+ op0 = gen_lowpart (HImode, op0);
+ }
+ gcc_assert (op0mode == mode0 || op0mode == VOIDmode);
+
+ if (! (*insn_data[icode].operand[1].predicate) (op0, mode0))
+ op0 = copy_to_mode_reg (mode0, op0);
+
+ pat = GEN_FCN (icode) (target, op0);
+ if (! pat)
+ return 0;
+ emit_insn (pat);
+ return target;
+}
+
+/* Subroutine of avr_expand_builtin to take care of binop insns. */
+
+static rtx
+avr_expand_binop_builtin (enum insn_code icode, tree exp, rtx target)
+{
+ rtx pat;
+ tree arg0 = CALL_EXPR_ARG (exp, 0);
+ tree arg1 = CALL_EXPR_ARG (exp, 1);
+ rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0);
+ rtx op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0);
+ enum machine_mode op0mode = GET_MODE (op0);
+ enum machine_mode op1mode = GET_MODE (op1);
+ enum machine_mode tmode = insn_data[icode].operand[0].mode;
+ enum machine_mode mode0 = insn_data[icode].operand[1].mode;
+ enum machine_mode mode1 = insn_data[icode].operand[2].mode;
+
+ if (! target
+ || GET_MODE (target) != tmode
+ || ! (*insn_data[icode].operand[0].predicate) (target, tmode))
+ target = gen_reg_rtx (tmode);
+
+ if ((op0mode == SImode || op0mode == VOIDmode) && mode0 == HImode)
+ {
+ op0mode = HImode;
+ op0 = gen_lowpart (HImode, op0);
+ }
+ if ((op1mode == SImode || op1mode == VOIDmode) && mode1 == HImode)
+ {
+ op1mode = HImode;
+ op1 = gen_lowpart (HImode, op1);
+ }
+ /* In case the insn wants input operands in modes different from
+ the result, abort. */
+ gcc_assert ((op0mode == mode0 || op0mode == VOIDmode)
+ && (op1mode == mode1 || op1mode == VOIDmode));
+
+ if (! (*insn_data[icode].operand[1].predicate) (op0, mode0))
+ op0 = copy_to_mode_reg (mode0, op0);
+ if (! (*insn_data[icode].operand[2].predicate) (op1, mode1))
+ op1 = copy_to_mode_reg (mode1, op1);
+
+ pat = GEN_FCN (icode) (target, op0, op1);
+ if (! pat)
+ return 0;
+
+ emit_insn (pat);
+ return target;
+}
+
+/* Expand an expression EXP that calls a built-in function,
+ with result going to TARGET if that's convenient
+ (and in mode MODE if that's convenient).
+ SUBTARGET may be used as the target for computing one of EXP's operands.
+ IGNORE is nonzero if the value is to be ignored. */
+
+static rtx
+avr_expand_builtin (tree exp, rtx target,
+ rtx subtarget ATTRIBUTE_UNUSED,
+ enum machine_mode mode ATTRIBUTE_UNUSED,
+ int ignore ATTRIBUTE_UNUSED)
+{
+ size_t i;
+ const struct builtin_description *d;
+ tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0);
+ unsigned int fcode = DECL_FUNCTION_CODE (fndecl);
+ rtx pat;
+ tree arg0;
+ rtx op0;
+
+ switch (fcode)
+ {
+ case AVR_BUILTIN_SEI:
+ emit_insn (gen_enable_interrupt ());
+ return 0;
+ case AVR_BUILTIN_CLI:
+ emit_insn (gen_disable_interrupt ());
+ return 0;
+ case AVR_BUILTIN_WDR:
+ emit_insn (gen_wdr ());
+ return 0;
+ case AVR_BUILTIN_SLEEP:
+ emit_insn (gen_sleep ());
+ return 0;
+ case AVR_BUILTIN_DELAY_CYCLES:
+ {
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0);
+
+ if (!CONSTANT_P (op0))
+ error ("__builtin_avr_delay_cycles expects an integer constant.");
+
+ emit_insn (gen_delay_cycles (op0));
+ return 0;
+ }
+ }
+
+ for (i = 0, d = bdesc_1arg; i < ARRAY_SIZE (bdesc_1arg); i++, d++)
+ if (d->code == fcode)
+ return avr_expand_unop_builtin (d->icode, exp, target);
+
+ for (i = 0, d = bdesc_1arg; i < ARRAY_SIZE (bdesc_2arg); i++, d++)
+ if (d->code == fcode)
+ return avr_expand_binop_builtin (d->icode, exp, target);
+
+ gcc_unreachable ();
+}
+
#include "gt-avr.h"