diff options
Diffstat (limited to 'gcc/reload1.c')
| -rw-r--r-- | gcc/reload1.c | 62 |
1 files changed, 32 insertions, 30 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c index 03d313fcff6..d18244bf1e4 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -79,7 +79,7 @@ Boston, MA 02111-1307, USA. */ #endif /* During reload_as_needed, element N contains a REG rtx for the hard reg - into which reg N has been reloaded (perhaps for a previous insn). */ + into which reg N has been reloaded (perhaps for a previous insn). */ static rtx *reg_last_reload_reg; /* Elt N nonzero if reg_last_reload_reg[N] has been set in this insn @@ -288,22 +288,22 @@ extern int *reg_allocno; static struct elim_table { - int from; /* Register number to be eliminated. */ - int to; /* Register number used as replacement. */ - int initial_offset; /* Initial difference between values. */ - int can_eliminate; /* Non-zero if this elimination can be done. */ + int from; /* Register number to be eliminated. */ + int to; /* Register number used as replacement. */ + int initial_offset; /* Initial difference between values. */ + int can_eliminate; /* Non-zero if this elimination can be done. */ int can_eliminate_previous; /* Value of CAN_ELIMINATE in previous scan over - insns made by reload. */ - int offset; /* Current offset between the two regs. */ - int max_offset; /* Maximum offset between the two regs. */ - int previous_offset; /* Offset at end of previous insn. */ - int ref_outside_mem; /* "to" has been referenced outside a MEM. */ + insns made by reload. */ + int offset; /* Current offset between the two regs. */ + int max_offset; /* Maximum offset between the two regs. */ + int previous_offset; /* Offset at end of previous insn. */ + int ref_outside_mem; /* "to" has been referenced outside a MEM. */ rtx from_rtx; /* REG rtx for the register to be eliminated. We cannot simply compare the number since we might then spuriously replace a hard register corresponding to a pseudo - assigned to the reg to be eliminated. */ - rtx to_rtx; /* REG rtx for the replacement. */ + assigned to the reg to be eliminated. */ + rtx to_rtx; /* REG rtx for the replacement. */ } reg_eliminate[] = /* If a set of eliminable registers was specified, define the table from it. @@ -429,7 +429,7 @@ init_reload () } } - /* Initialize obstack for our rtl allocation. */ + /* Initialize obstack for our rtl allocation. */ gcc_obstack_init (&reload_obstack); reload_firstobj = (char *) obstack_alloc (&reload_obstack, 0); } @@ -1220,7 +1220,7 @@ reload (first, global, dumpfile) and operand addresses but not things used to reload them. Similarly, RELOAD_FOR_OPERAND_ADDRESS reloads don't conflict with things needed to reload inputs or - outputs. */ + outputs. */ in_max = MAX (MAX (insn_needs.op_addr.regs[j][i], insn_needs.op_addr_reload.regs[j][i]), @@ -1378,7 +1378,7 @@ reload (first, global, dumpfile) } /* Now count extra regs if there might be a conflict with - the return value register. */ + the return value register. */ for (r = regno; r < regno + nregs; r++) if (spill_reg_order[r] >= 0) @@ -2495,7 +2495,7 @@ set_label_offsets (x, insn, initial_p) x = XEXP (x, 0); - /* ... fall through ... */ + /* ... fall through ... */ case CODE_LABEL: /* If we know nothing about this label, set the desired offsets. Note @@ -2550,7 +2550,7 @@ set_label_offsets (x, insn, initial_p) case JUMP_INSN: set_label_offsets (PATTERN (insn), insn, initial_p); - /* ... fall through ... */ + /* ... fall through ... */ case INSN: case CALL_INSN: @@ -2835,7 +2835,7 @@ eliminate_regs (x, mem_mode, insn) ep->previous_offset * INTVAL (XEXP (x, 1))); } - /* ... fall through ... */ + /* ... fall through ... */ case CALL: case COMPARE: @@ -2867,7 +2867,7 @@ eliminate_regs (x, mem_mode, insn) x = gen_rtx (EXPR_LIST, REG_NOTE_KIND (x), new, XEXP (x, 1)); } - /* ... fall through ... */ + /* ... fall through ... */ case INSN_LIST: /* Now do eliminations in the rest of the chain. If this was @@ -3316,7 +3316,7 @@ eliminate_regs_in_insn (insn, replace) If we are replacing a body that was a (set X (plus Y Z)), try to re-recognize the insn. We do this in case we had a simple addition but now can do this as a load-address. This saves an insn in this - common case. */ + common case. */ new_body = eliminate_regs (old_body, 0, replace ? insn : NULL_RTX); if (new_body != old_body) @@ -3324,7 +3324,7 @@ eliminate_regs_in_insn (insn, replace) /* If we aren't replacing things permanently and we changed something, make another copy to ensure that all the RTL is new. Otherwise things can go wrong if find_reload swaps commutative operands - and one is inside RTL that has been copied while the other is not. */ + and one is inside RTL that has been copied while the other is not. */ /* Don't copy an asm_operands because (1) there's no need and (2) copy_rtx can't do it properly when there are multiple outputs. */ @@ -4601,7 +4601,7 @@ reload_reg_reaches_end_p (regno, opnum, type) || TEST_HARD_REG_BIT (reload_reg_used_in_input[i], regno)) return 0; - /* ... fall through ... */ + /* ... fall through ... */ case RELOAD_FOR_OPERAND_ADDRESS: /* Check outputs and their addresses. */ @@ -4628,7 +4628,7 @@ reload_reg_reaches_end_p (regno, opnum, type) opnum = -1; - /* ... fall through ... */ + /* ... fall through ... */ case RELOAD_FOR_OUTPUT: case RELOAD_FOR_OUTPUT_ADDRESS: @@ -4658,7 +4658,8 @@ reloads_conflict (r1, r2) int r1_opnum = reload_opnum[r1]; int r2_opnum = reload_opnum[r2]; - /* RELOAD_OTHER conflicts with everything except RELOAD_FOR_OTHER_ADDRESS. */ + /* RELOAD_OTHER conflicts with everything except + RELOAD_FOR_OTHER_ADDRESS. */ if (r2_type == RELOAD_OTHER && r1_type != RELOAD_FOR_OTHER_ADDRESS) return 1; @@ -5241,7 +5242,7 @@ choose_reload_regs (insn, avoid_return_reg) reload_when_needed[r])) { /* If a group is needed, verify that all the subsequent - registers still have their values intact. */ + registers still have their values intact. */ int nr = HARD_REGNO_NREGS (spill_regs[i], reload_mode[r]); int k; @@ -5363,8 +5364,9 @@ choose_reload_regs (insn, avoid_return_reg) break; } - /* JRV: If the equiv register we have found is explicitly - clobbered in the current insn, mark but don't use, as above. */ + /* JRV: If the equiv register we have found is + explicitly clobbered in the current insn, mark but + don't use, as above. */ if (equiv != 0 && regno_clobbered_p (regno, insn)) { @@ -5449,7 +5451,7 @@ choose_reload_regs (insn, avoid_return_reg) continue; /* Skip reloads that already have a register allocated or are - optional. */ + optional. */ if (reload_reg_rtx[r] != 0 || reload_optional[r]) continue; @@ -6838,7 +6840,7 @@ gen_reload (out, in, opnum, type) if the add instruction is two-address and the second operand of the add is the same as the reload reg, which is frequently the case. If the insn would be A = B + A, rearrange it so - it will be A = A + B as constrain_operands expects. */ + it will be A = A + B as constrain_operands expects. */ if (GET_CODE (XEXP (in, 1)) == REG && REGNO (out) == REGNO (XEXP (in, 1))) @@ -6888,7 +6890,7 @@ gen_reload (out, in, opnum, type) insn = emit_insn (gen_add2_insn (out, op1)); /* If that failed, copy the address register to the reload register. - Then add the constant to the reload register. */ + Then add the constant to the reload register. */ code = recog_memoized (insn); |