diff options
Diffstat (limited to 'gcc/config/ia64/ia64.c')
| -rw-r--r-- | gcc/config/ia64/ia64.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c index 4262870..d1f44d6 100644 --- a/gcc/config/ia64/ia64.c +++ b/gcc/config/ia64/ia64.c @@ -336,6 +336,7 @@ static section * ia64_hpux_function_section (tree, enum node_frequency, static bool ia64_vectorize_vec_perm_const_ok (machine_mode vmode, const unsigned char *sel); +static unsigned int ia64_hard_regno_nregs (unsigned int, machine_mode); static bool ia64_hard_regno_mode_ok (unsigned int, machine_mode); static bool ia64_modes_tieable_p (machine_mode, machine_mode); @@ -659,6 +660,8 @@ static const struct attribute_spec ia64_attribute_table[] = #undef TARGET_CUSTOM_FUNCTION_DESCRIPTORS #define TARGET_CUSTOM_FUNCTION_DESCRIPTORS 0 +#undef TARGET_HARD_REGNO_NREGS +#define TARGET_HARD_REGNO_NREGS ia64_hard_regno_nregs #undef TARGET_HARD_REGNO_MODE_OK #define TARGET_HARD_REGNO_MODE_OK ia64_hard_regno_mode_ok @@ -4263,6 +4266,30 @@ ia64_hard_regno_rename_ok (int from, int to) return 1; } +/* Implement TARGET_HARD_REGNO_NREGS. + + ??? We say that BImode PR values require two registers. This allows us to + easily store the normal and inverted values. We use CCImode to indicate + a single predicate register. */ + +static unsigned int +ia64_hard_regno_nregs (unsigned int regno, machine_mode mode) +{ + if (regno == PR_REG (0) && mode == DImode) + return 64; + if (PR_REGNO_P (regno) && (mode) == BImode) + return 2; + if ((PR_REGNO_P (regno) || GR_REGNO_P (regno)) && mode == CCImode) + return 1; + if (FR_REGNO_P (regno) && mode == XFmode) + return 1; + if (FR_REGNO_P (regno) && mode == RFmode) + return 1; + if (FR_REGNO_P (regno) && mode == XCmode) + return 2; + return CEIL (GET_MODE_SIZE (mode), UNITS_PER_WORD); +} + /* Implement TARGET_HARD_REGNO_MODE_OK. */ static bool |