diff options
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/rtl.h b/gcc/rtl.h index 57a2f130204..4049d192909 100644 --- a/gcc/rtl.h +++ b/gcc/rtl.h @@ -1697,6 +1697,14 @@ inline rtx_insn *JUMP_LABEL_AS_INSN (const rtx_insn *insn) (df_ref_change_reg_with_loc (REGNO (RTX), N, RTX), XCUINT (RTX, 0, REG) = N) #define SET_REGNO_RAW(RTX,N) (XCUINT (RTX, 0, REG) = N) +/* Return the number of consecutive registers in a REG. This is always + 1 for pseudo registers and is determined by HARD_REGNO_NREGS for + hard registers. */ +#define REG_NREGS(RTX) \ + (REGNO (RTX) < FIRST_PSEUDO_REGISTER \ + ? (unsigned int) hard_regno_nregs[REGNO (RTX)][GET_MODE (RTX)] \ + : 1) + /* ORIGINAL_REGNO holds the number the register originally had; for a pseudo register turned into a hard reg this will hold the old pseudo register number. */ |