diff options
Diffstat (limited to 'gcc/config/avr/avr.h')
| -rw-r--r-- | gcc/config/avr/avr.h | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/gcc/config/avr/avr.h b/gcc/config/avr/avr.h index 2a13044..f5116a9 100644 --- a/gcc/config/avr/avr.h +++ b/gcc/config/avr/avr.h @@ -51,6 +51,7 @@ extern int target_flags; #define MASK_ORDER_1 0x00001000 #define MASK_INSN_SIZE_DUMP 0x00002000 #define MASK_ORDER_2 0x00004000 +#define MASK_NO_TABLEJUMP 0x00008000 #define MASK_INT8 0x00010000 #define MASK_NO_INTERRUPTS 0x00020000 #define MASK_CALL_PROLOGUES 0x00040000 @@ -63,6 +64,7 @@ extern int target_flags; #define TARGET_INSN_SIZE_DUMP (target_flags & MASK_INSN_SIZE_DUMP) #define TARGET_CALL_PROLOGUES (target_flags & MASK_CALL_PROLOGUES) #define TARGET_TINY_STACK (target_flags & MASK_TINY_STACK) +#define TARGET_NO_TABLEJUMP (target_flags & MASK_NO_TABLEJUMP) /* Dump each assembler insn's rtl into the output file. This is for debugging the compiler itself. */ @@ -102,6 +104,8 @@ extern int target_flags; N_("Use subroutines for function prologue/epilogue") }, \ { "tiny-stack", MASK_TINY_STACK, \ N_("Change only the low 8 bits of the stack pointer") }, \ + { "no-tablejump", MASK_NO_TABLEJUMP, \ + N_("Do not generate tablejump insns") }, \ { "rtl", MASK_RTL_DUMP, NULL }, \ { "size", MASK_INSN_SIZE_DUMP, \ N_("Output instruction sizes to the asm file") }, \ @@ -2001,7 +2005,10 @@ progmem_section (void) \ if (in_section != in_progmem) \ { \ fprintf (asm_out_file, \ - ".section .progmem.gcc_sw_table, \"a\", @progbits\n"); \ + "\t.section .progmem.gcc_sw_table, \"%s\", @progbits\n", \ + AVR_MEGA ? "a" : "ax"); \ + /* Should already be aligned, this is just to be safe if it isn't. */ \ + fprintf (asm_out_file, "\t.p2align 1\n"); \ in_section = in_progmem; \ } \ } @@ -2042,7 +2049,7 @@ progmem_section (void) \ Do not define this macro if you put all constants in the read-only data section. */ -#define JUMP_TABLES_IN_TEXT_SECTION 1 +#define JUMP_TABLES_IN_TEXT_SECTION 0 /* Define this macro if jump tables (for `tablejump' insns) should be output in the text section, along with the assembler instructions. Otherwise, the readonly data section is used. @@ -2705,8 +2712,13 @@ sprintf (STRING, "*.%s%d", PREFIX, NUM) pop hard register number REGNO off of the stack. The code need not be optimal, since this macro is used only when profiling. */ -#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \ - fprintf (STREAM, "\t.word pm(.L%d)\n", VALUE); +#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \ +do { \ + if (AVR_MEGA) \ + fprintf (STREAM, "\t.word pm(.L%d)\n", VALUE); \ + else \ + fprintf (STREAM, "\trjmp .L%d\n", VALUE); \ +} while (0) /* This macro should be provided on machines where the addresses in a dispatch table are absolute. @@ -2761,7 +2773,9 @@ fprintf (STREAM, "\t.skip %d,0\n", n) /* An alias for a machine mode name. This is the machine mode that elements of a jump-table should have. */ -#define CASE_VALUES_THRESHOLD 17 +extern int avr_case_values_threshold; + +#define CASE_VALUES_THRESHOLD avr_case_values_threshold /* `CASE_VALUES_THRESHOLD' Define this to be the smallest number of different values for which it is best to use a jump-table instead of a tree of |