projects / packages / crossavr-gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 6ef8d480 | 1 | diff -Naurp gcc/config/avr/avr.c gcc/config/avr/avr.c |
| 08a89ff7 JR |
2 | --- gcc/config/avr/avr.c 2011-10-28 16:28:16.000000000 +0530 |
| 3 | +++ gcc/config/avr/avr.c 2011-10-28 16:40:20.000000000 +0530 | |
| 6ef8d480 PZ |
4 | @@ -96,6 +96,7 @@ static struct machine_function * avr_ini |
| 5 | static void avr_init_builtins (void); | |
| 6 | static rtx avr_expand_builtin (tree, rtx, rtx, enum machine_mode, int); | |
| 7 | static rtx avr_builtin_setjmp_frame_value (void); | |
| 8 | +static void avr_conditional_register_usage (void); | |
| 9 | static bool avr_hard_regno_scratch_ok (unsigned int); | |
| 10 | static unsigned int avr_case_values_threshold (void); | |
| 11 | static bool avr_frame_pointer_required_p (void); | |
| 12 | @@ -212,6 +213,8 @@ static const struct default_options avr_ | |
| 13 | #undef TARGET_BUILTIN_SETJMP_FRAME_VALUE | |
| 14 | #define TARGET_BUILTIN_SETJMP_FRAME_VALUE avr_builtin_setjmp_frame_value | |
| 15 | ||
| 16 | +#undef TARGET_CONDITIONAL_REGISTER_USAGE | |
| 17 | +#define TARGET_CONDITIONAL_REGISTER_USAGE avr_conditional_register_usage | |
| 18 | #undef TARGET_HARD_REGNO_SCRATCH_OK | |
| 19 | #define TARGET_HARD_REGNO_SCRATCH_OK avr_hard_regno_scratch_ok | |
| 20 | #undef TARGET_CASE_VALUES_THRESHOLD | |
| 21 | @@ -7388,6 +7391,19 @@ avr_output_addr_vec_elt (FILE *stream, i | |
| 22 | fprintf (stream, "\trjmp .L%d\n", value); | |
| 23 | } | |
| 24 | ||
| 25 | +static void | |
| 26 | +avr_conditional_register_usage(void) { | |
| 27 | + if (AVR_TINY) { | |
| 28 | + int i; | |
| 29 | + for (i = 0; i <= 17; i++) { | |
| 30 | + fixed_regs[i] = 1; | |
| 31 | + call_used_regs[i] = 1; | |
| 32 | + } | |
| 33 | + CLEAR_HARD_REG_SET(reg_class_contents[(int)ADDW_REGS]); | |
| 34 | + CLEAR_HARD_REG_SET(reg_class_contents[(int)NO_LD_REGS]); | |
| 35 | + } | |
| 36 | +} | |
| 37 | + | |
| 38 | /* Returns true if SCRATCH are safe to be allocated as a scratch | |
| 39 | registers (for a define_peephole2) in the current function. */ | |
| 40 | ||
| 41 | diff -Naurp gcc/config/avr/avr.h gcc/config/avr/avr.h | |
| 08a89ff7 JR |
42 | --- gcc/config/avr/avr.h 2011-10-28 16:29:55.000000000 +0530 |
| 43 | +++ gcc/config/avr/avr.h 2011-10-28 16:40:20.000000000 +0530 | |
| 44 | @@ -313,41 +313,6 @@ enum reg_class { | |
| 6ef8d480 PZ |
45 | {0xffffffff,0x00000003} /* ALL_REGS */ \ |
| 46 | } | |
| 47 | ||
| 48 | -/* Zero or more C statements that may conditionally modify five variables | |
| 49 | - fixed_regs, call_used_regs, global_regs, reg_names, and reg_class_contents, | |
| 50 | - to take into account any dependence of these register sets on target flags. | |
| 51 | - The first three of these are of type char [] (interpreted as Boolean | |
| 52 | - vectors). global_regs is a const char *[], and reg_class_contents is a | |
| 53 | - HARD_REG_SET. Before the macro is called, fixed_regs, call_used_regs, | |
| 54 | - reg_class_contents, and reg_names have been initialized from | |
| 55 | - FIXED_REGISTERS, CALL_USED_REGISTERS, REG_CLASS_CONTENTS, and | |
| 56 | - REGISTER_NAMES, respectively. global_regs has been cleared, and any | |
| 57 |