diff options
Diffstat (limited to 'gcc/config/cris/cris.c')
| -rw-r--r-- | gcc/config/cris/cris.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/gcc/config/cris/cris.c b/gcc/config/cris/cris.c index 8109263..2fdfcf6 100644 --- a/gcc/config/cris/cris.c +++ b/gcc/config/cris/cris.c @@ -398,6 +398,11 @@ cris_conditional_register_usage (void) if (TARGET_HAS_MUL_INSNS) fixed_regs[CRIS_MOF_REGNUM] = 0; + + /* On early versions, we must use the 16-bit condition-code register, + which has another name. */ + if (cris_cpu_version < 8) + reg_names[CRIS_CC0_REGNUM] = "ccr"; } /* Return current_function_uses_pic_offset_table. For use in cris.md, @@ -979,7 +984,8 @@ cris_print_operand (FILE *file, rtx x, int code) case REG: if (REGNO (operand) > 15 && REGNO (operand) != CRIS_MOF_REGNUM - && REGNO (operand) != CRIS_SRP_REGNUM) + && REGNO (operand) != CRIS_SRP_REGNUM + && REGNO (operand) != CRIS_CC0_REGNUM) internal_error ("internal error: bad register: %d", REGNO (operand)); fprintf (file, "$%s", reg_names[REGNO (operand)]); return; @@ -3228,14 +3234,24 @@ cris_arg_partial_bytes (CUMULATIVE_ARGS *ca, enum machine_mode mode, /* Worker function for TARGET_MD_ASM_CLOBBERS. */ static tree -cris_md_asm_clobbers (tree outputs, tree inputs, tree clobbers) +cris_md_asm_clobbers (tree outputs, tree inputs, tree in_clobbers) { HARD_REG_SET mof_set; + tree clobbers; tree t; CLEAR_HARD_REG_SET (mof_set); SET_HARD_REG_BIT (mof_set, CRIS_MOF_REGNUM); + /* For the time being, all asms clobber condition codes. Revisit when + there's a reasonable use for inputs/outputs that mention condition + codes. */ + clobbers + = tree_cons (NULL_TREE, + build_string (strlen (reg_names[CRIS_CC0_REGNUM]), + reg_names[CRIS_CC0_REGNUM]), + in_clobbers); + for (t = outputs; t != NULL; t = TREE_CHAIN (t)) { tree val = TREE_VALUE (t); |