diff options
Diffstat (limited to 'gcc/local-alloc.c')
| -rw-r--r-- | gcc/local-alloc.c | 24 |
1 files changed, 4 insertions, 20 deletions
diff --git a/gcc/local-alloc.c b/gcc/local-alloc.c index 9c94924..c2d6c0c 100644 --- a/gcc/local-alloc.c +++ b/gcc/local-alloc.c @@ -61,10 +61,10 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #include "config.h" #include "system.h" +#include "hard-reg-set.h" #include "rtl.h" #include "tm_p.h" #include "flags.h" -#include "hard-reg-set.h" #include "basic-block.h" #include "regs.h" #include "function.h" @@ -144,12 +144,6 @@ struct qty or -1 if none was found. */ short phys_reg; - - /* Nonzero if this quantity has been used in a SUBREG in some - way that is illegal. */ - - char changes_mode; - }; static struct qty *qty; @@ -328,7 +322,6 @@ alloc_qty (regno, mode, size, birth) qty[qtyno].alternate_class = reg_alternate_class (regno); qty[qtyno].n_refs = REG_N_REFS (regno); qty[qtyno].freq = REG_FREQ (regno); - qty[qtyno].changes_mode = REG_CHANGES_MODE (regno); } /* Main entry point of this file. */ @@ -2026,9 +2019,6 @@ update_qty_class (qtyno, reg) rclass = reg_alternate_class (reg); if (reg_class_subset_p (rclass, qty[qtyno].alternate_class)) qty[qtyno].alternate_class = rclass; - - if (REG_CHANGES_MODE (reg)) - qty[qtyno].changes_mode = 1; } /* Handle something which alters the value of an rtx REG. @@ -2182,11 +2172,7 @@ find_free_reg (class, mode, qtyno, accept_call_clobbered, just_try_suggested, int born_index, dead_index; { int i, ins; -#ifdef HARD_REG_SET - /* Declare it register if it's a scalar. */ - register -#endif - HARD_REG_SET used, first_used; + HARD_REG_SET first_used, used; #ifdef ELIMINABLE_REGS static const struct {const int from, to; } eliminables[] = ELIMINABLE_REGS; #endif @@ -2234,10 +2220,8 @@ find_free_reg (class, mode, qtyno, accept_call_clobbered, just_try_suggested, SET_HARD_REG_BIT (used, FRAME_POINTER_REGNUM); #endif -#ifdef CLASS_CANNOT_CHANGE_MODE - if (qty[qtyno].changes_mode) - IOR_HARD_REG_SET (used, - reg_class_contents[(int) CLASS_CANNOT_CHANGE_MODE]); +#ifdef CANNOT_CHANGE_MODE_CLASS + cannot_change_mode_set_regs (&used, mode, qty[qtyno].first_reg); #endif /* Normally, the registers that can be used for the first register in |