From f9419b056fe203f34ac36c75ab65c4b06b778776 Mon Sep 17 00:00:00 2001 From: Thiemo Seufer Date: Sun, 26 May 2002 18:46:37 +0000 Subject: [PATCH] * config/tc-mips.c (mips_emit_delays): Replace magic constant for RA by the define. Remove superfluous check of mips_opts.mips16. (append_insn): Likewise. Canonicalize variable increments. (macro_build): Canonicalize variable increments. (macro_build_lui): Likewise. (load_register): Likewise. (load_address): Move pointer initialization. (macro): Move pointer to a more local scope. Canonicalize variable increments. Better comments. Replace magic constant for RA by the define. (macro2): Replace magic constant for RA by the define. Canonicalize variable increments. (mips_ip): Canonicalize variable increments. (mips16_ip): Replace magic constant for RA by the define. (my_getSmallParser): Canonicalize variable increments/decrements. (my_getPercentOp): Likewise. (my_getSmallExpression): Likewise. (s_align): Likewise. (s_mipsset): Likewise. (s_cpsetup): Likewise. (s_insn): Remove superfluous check of mips_opts.mips16. (s_mips_stab): Likewise. (mips_handle_align): Canonicalize variable increments. (s_mips_ent): Likewise. (s_mips_end): Add comment. --- gas/ChangeLog | 28 ++++++++++ gas/config/tc-mips.c | 130 ++++++++++++++++++++++--------------------- 2 files changed, 96 insertions(+), 62 deletions(-) diff --git a/gas/ChangeLog b/gas/ChangeLog index 0b12cd17786..7a8ab8bf13c 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,31 @@ +2002-05-26 Thiemo Seufer + + * config/tc-mips.c (mips_emit_delays): Replace magic constant for RA + by the define. Remove superfluous check of mips_opts.mips16. + (append_insn): Likewise. Canonicalize variable increments. + (macro_build): Canonicalize variable increments. + (macro_build_lui): Likewise. + (load_register): Likewise. + (load_address): Move pointer initialization. + (macro): Move pointer to a more local scope. Canonicalize variable + increments. Better comments. Replace magic constant for RA by the + define. + (macro2): Replace magic constant for RA by the define. Canonicalize + variable increments. + (mips_ip): Canonicalize variable increments. + (mips16_ip): Replace magic constant for RA by the define. + (my_getSmallParser): Canonicalize variable increments/decrements. + (my_getPercentOp): Likewise. + (my_getSmallExpression): Likewise. + (s_align): Likewise. + (s_mipsset): Likewise. + (s_cpsetup): Likewise. + (s_insn): Remove superfluous check of mips_opts.mips16. + (s_mips_stab): Likewise. + (mips_handle_align): Canonicalize variable increments. + (s_mips_ent): Likewise. + (s_mips_end): Add comment. + 2002-05-26 Jason Thorpe * configure.in: Use ns32k-*-netbsd* instead of ns32k-pc532-netbsd*. diff --git a/gas/config/tc-mips.c b/gas/config/tc-mips.c index cb4f583a070..6d80f68ab9b 100644 --- a/gas/config/tc-mips.c +++ b/gas/config/tc-mips.c @@ -1656,8 +1656,7 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi) int nops = 0; /* Mark instruction labels in mips16 mode. */ - if (mips_opts.mips16) - mips16_mark_labels (); + mips16_mark_labels (); prev_pinfo = prev_insn.insn_mo->pinfo; pinfo = ip->insn_mo->pinfo; @@ -1815,7 +1814,7 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi) MIPS_GR_REG)) { - nops += 1; + ++nops; } else if (prev_pinfo & INSN_READ_LO) @@ -1841,7 +1840,7 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi) else if (mips_opts.mips16 && (mips_optimize == 0 || (pinfo & MIPS16_INSN_BRANCH))) - nops += 1; + ++nops; } else if (prev_insn.insn_mo->pinfo & INSN_READ_HI) { @@ -1863,7 +1862,7 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi) else if (mips_opts.mips16 && (mips_optimize == 0 || (pinfo & MIPS16_INSN_BRANCH))) - nops += 1; + ++nops; } /* If the previous instruction was in a noreorder section, then @@ -1950,7 +1949,7 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi) val = (valueT) frag_now_fix (); /* mips16 text labels are stored as odd. */ if (mips_opts.mips16) - val += 1; + ++val; S_SET_VALUE (l->label, val); } @@ -2248,7 +2247,7 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi) if (pinfo & INSN_READ_GPR_S) mips_gprmask |= 1 << ((ip->insn_opcode >> OP_SH_RS) & OP_MASK_RS); if (pinfo & INSN_WRITE_GPR_31) - mips_gprmask |= 1 << 31; + mips_gprmask |= 1 << RA; if (pinfo & INSN_WRITE_FPR_D) mips_cprmask[1] |= 1 << ((ip->insn_opcode >> OP_SH_FD) & OP_MASK_FD); if ((pinfo & (INSN_WRITE_FPR_S | INSN_READ_FPR_S)) != 0) @@ -2441,7 +2440,7 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi) || ((pinfo & INSN_WRITE_GPR_31) && (((prev_insn.insn_opcode >> OP_SH_RT) & OP_MASK_RT) - == 31)))) + == RA)))) || (! mips_opts.mips16 && (prev_pinfo & INSN_WRITE_GPR_D) && (((pinfo & INSN_WRITE_GPR_D) @@ -2450,7 +2449,7 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi) || ((pinfo & INSN_WRITE_GPR_31) && (((prev_insn.insn_opcode >> OP_SH_RD) & OP_MASK_RD) - == 31)))) + == RA)))) || (mips_opts.mips16 && (pinfo & MIPS16_INSN_WRITE_31) && ((prev_pinfo & MIPS16_INSN_WRITE_31) @@ -2468,7 +2467,7 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi) MIPS_GR_REG)) || (! mips_opts.mips16 && (pinfo & INSN_WRITE_GPR_31) - && insn_uses_reg (&prev_insn, 31, MIPS_GR_REG)) + && insn_uses_reg (&prev_insn, RA, MIPS_GR_REG)) || (mips_opts.mips16 && (pinfo & MIPS16_INSN_WRITE_31) && insn_uses_reg (&prev_insn, RA, MIPS_GR_REG)) @@ -2826,14 +2825,14 @@ mips_emit_delays (insns) val = (valueT) frag_now_fix (); /* mips16 text labels are stored as odd. */ if (mips_opts.mips16) - val += 1; + ++val; S_SET_VALUE (l->label, val); } } } /* Mark instruction labels in mips16 mode. */ - if (mips_opts.mips16 && insns) + if (insns) mips16_mark_labels (); mips_no_prev_insn (insns); @@ -2894,7 +2893,7 @@ macro_build (place, counter, ep, name, fmt, va_alist) as_warn (_("Macro instruction expanded into multiple instructions in a branch delay slot")); if (place == NULL) - *counter += 1; /* bump instruction counter */ + ++*counter; /* bump instruction counter */ if (mips_opts.mips16) { @@ -3254,7 +3253,7 @@ macro_build_lui (place, counter, ep, regnum) as_warn (_("Macro instruction expanded into multiple instructions")); if (place == NULL) - *counter += 1; /* bump instruction counter */ + ++*counter; /* bump instruction counter */ insn.insn_mo = (struct mips_opcode *) hash_find (op_hash, name); assert (insn.insn_mo); @@ -3548,7 +3547,7 @@ load_register (counter, reg, ep, dbl) (shift >= 32) ? shift - 32 : shift); return; } - shift++; + ++shift; } while (shift <= (64 - 16)); @@ -3668,7 +3667,7 @@ load_address (counter, reg, ep, dbl, used_at) int dbl; int *used_at; { - char *p; + char *p = NULL; if (ep->X_op != O_constant && ep->X_op != O_symbol) @@ -3711,8 +3710,6 @@ load_address (counter, reg, ep, dbl, used_at) */ if (dbl) { - p = NULL; - /* We don't do GP optimization for now because RELAX_ENCODE can't hold the data for such large chunks. */ @@ -3750,7 +3747,6 @@ load_address (counter, reg, ep, dbl, used_at) } else { - p = NULL; if ((valueT) ep->X_add_number <= MAX_GPREL_OFFSET && ! nopic_need_relax (ep->X_add_symbol, 1)) { @@ -3925,7 +3921,6 @@ macro (ip) offsetT maxnum; int off; bfd_reloc_code_real_type r; - char *p; int hold_mips_optimize; assert (! mips_opts.mips16); @@ -4119,7 +4114,7 @@ macro (ip) } if (imm_expr.X_op != O_constant) as_bad (_("Unsupported large constant")); - imm_expr.X_add_number++; + ++imm_expr.X_add_number; /* FALLTHROUGH */ case M_BGE_I: case M_BGEL_I: @@ -4188,7 +4183,7 @@ macro (ip) goto do_false; if (imm_expr.X_op != O_constant) as_bad (_("Unsupported large constant")); - imm_expr.X_add_number++; + ++imm_expr.X_add_number; /* FALLTHROUGH */ case M_BGEU_I: case M_BGEUL_I: @@ -4283,7 +4278,7 @@ macro (ip) goto do_true; if (imm_expr.X_op != O_constant) as_bad (_("Unsupported large constant")); - imm_expr.X_add_number++; + ++imm_expr.X_add_number; /* FALLTHROUGH */ case M_BLT_I: case M_BLTL_I: @@ -4333,7 +4328,7 @@ macro (ip) goto do_true; if (imm_expr.X_op != O_constant) as_bad (_("Unsupported large constant")); - imm_expr.X_add_number++; + ++imm_expr.X_add_number; /* FALLTHROUGH */ case M_BLTU_I: case M_BLTUL_I: @@ -4704,7 +4699,7 @@ macro (ip) dsll $tempreg,16 daddiu $tempreg, (BFD_RELOC_LO16) */ - p = NULL; + char *p = NULL; if (HAVE_64BIT_ADDRESSES) { /* We don't do GP optimization for now because RELAX_ENCODE can't @@ -4805,6 +4800,7 @@ macro (ip) if (expr1.X_add_number == 0) { int off; + char *p; if (breg == 0) off = 0; @@ -4894,6 +4890,7 @@ macro (ip) else if (mips_pic == SVR4_PIC) { int gpdel; + char *p; int lui_reloc_type = (int) BFD_RELOC_MIPS_GOT_HI16; int lw_reloc_type = (int) BFD_RELOC_MIPS_GOT_LO16; @@ -5199,11 +5196,13 @@ macro (ip) macro_build ((char *) NULL, &icnt, &offset_expr, "jal", "a"); else if (mips_pic == SVR4_PIC) { + char *p; + /* If this is a reference to an external symbol, and we are using a small GOT, we want lw $25,($gp) (BFD_RELOC_MIPS_CALL16) nop - jalr $25 + jalr $ra,$25 nop lw $gp,cprestore($sp) The cprestore value is set using the .cprestore @@ -5212,14 +5211,14 @@ macro (ip) addu $25,$25,$gp lw $25,($25) (BFD_RELOC_MIPS_CALL_LO16) nop - jalr $25 + jalr $ra,$25 nop lw $gp,cprestore($sp) If the symbol is not external, we want lw $25,($gp) (BFD_RELOC_MIPS_GOT16) nop addiu $25,$25, (BFD_RELOC_LO16) - jalr $25 + jalr $ra,$25 nop lw $gp,cprestore($sp) */ frag_grow (40); @@ -5543,6 +5542,8 @@ macro (ip) if (mips_pic == NO_PIC || offset_expr.X_op == O_constant) { + char *p; + /* If this is a reference to a GP relative symbol, and there is no base register, we want $treg,($gp) (BFD_RELOC_GPREL16) @@ -5708,6 +5709,8 @@ macro (ip) } else if (mips_pic == SVR4_PIC && ! mips_big_got) { + char *p; + /* If this is a reference to an external symbol, we want lw $tempreg,($gp) (BFD_RELOC_MIPS_GOT16) nop @@ -5750,6 +5753,7 @@ macro (ip) else if (mips_pic == SVR4_PIC) { int gpdel; + char *p; /* If this is a reference to an external symbol, we want lui $tempreg, (BFD_RELOC_MIPS_GOT_HI16) @@ -5945,7 +5949,7 @@ macro (ip) { macro_build ((char *) NULL, &icnt, &offset_expr, "lw", "t,o(b)", treg, (int) BFD_RELOC_LO16, AT); - if (treg != 31) + if (treg != RA) { /* FIXME: How in the world do we deal with the possible overflow here? */ @@ -6162,6 +6166,8 @@ macro (ip) if (mips_pic == NO_PIC || offset_expr.X_op == O_constant) { + char *p; + /* If this is a reference to a GP relative symbol, we want $treg,($gp) (BFD_RELOC_GPREL16) $treg+1,+4($gp) (BFD_RELOC_GPREL16) @@ -6329,6 +6335,7 @@ macro (ip) else if (mips_pic == SVR4_PIC) { int gpdel, off; + char *p; /* If this is a reference to an external symbol, we want lui $at, (BFD_RELOC_MIPS_GOT_HI16) @@ -6629,7 +6636,7 @@ macro2 (ip) macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "mflo", "d", dreg); macro_build ((char *) NULL, &icnt, (expressionS *) NULL, - dbl ? "dsra32" : "sra", "d,w,<", dreg, dreg, 31); + dbl ? "dsra32" : "sra", "d,w,<", dreg, dreg, RA); macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "mfhi", "d", AT); if (mips_trap) @@ -7137,9 +7144,9 @@ macro2 (ip) ++mips_opts.noreorder; mips_any_noreorder = 1; macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "cfc1", "t,G", - treg, 31); + treg, RA); macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "cfc1", "t,G", - treg, 31); + treg, RA); macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "nop", ""); expr1.X_add_number = 3; macro_build ((char *) NULL, &icnt, &expr1, "ori", "t,r,i", AT, treg, @@ -7148,12 +7155,12 @@ macro2 (ip) macro_build ((char *) NULL, &icnt, &expr1, "xori", "t,r,i", AT, AT, (int) BFD_RELOC_LO16); macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "ctc1", "t,G", - AT, 31); + AT, RA); macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "nop", ""); macro_build ((char *) NULL, &icnt, (expressionS *) NULL, mask == M_TRUNCWD ? "cvt.w.d" : "cvt.w.s", "D,S", dreg, sreg); macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "ctc1", "t,G", - treg, 31); + treg, RA); macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "nop", ""); --mips_opts.noreorder; break; @@ -7168,13 +7175,13 @@ macro2 (ip) as_bad (_("operand overflow")); /* avoid load delay */ if (! target_big_endian) - offset_expr.X_add_number += 1; + ++offset_expr.X_add_number; macro_build ((char *) NULL, &icnt, &offset_expr, s, "t,o(b)", treg, (int) BFD_RELOC_LO16, breg); if (! target_big_endian) - offset_expr.X_add_number -= 1; + --offset_expr.X_add_number; else - offset_expr.X_add_number += 1; + ++offset_expr.X_add_number; macro_build ((char *) NULL, &icnt, &offset_expr, "lbu", "t,o(b)", AT, (int) BFD_RELOC_LO16, breg); macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "sll", "d,w,<", @@ -7266,15 +7273,15 @@ macro2 (ip) if (offset_expr.X_add_number >= 0x7fff) as_bad (_("operand overflow")); if (target_big_endian) - offset_expr.X_add_number += 1; + ++offset_expr.X_add_number; macro_build ((char *) NULL, &icnt, &offset_expr, "sb", "t,o(b)", treg, (int) BFD_RELOC_LO16, breg); macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "srl", "d,w,<", AT, treg, 8); if (target_big_endian) - offset_expr.X_add_number -= 1; + --offset_expr.X_add_number; else - offset_expr.X_add_number += 1; + ++offset_expr.X_add_number; macro_build ((char *) NULL, &icnt, &offset_expr, "sb", "t,o(b)", AT, (int) BFD_RELOC_LO16, breg); break; @@ -8105,14 +8112,14 @@ mips_ip (str, ip) as_warn (_("Used $at without \".set noat\"")); c = *args; if (*s == ' ') - s++; + ++s; if (args[1] != *s) { if (c == 'r' || c == 'v' || c == 'w') { regno = lastregno; s = s_reset; - args++; + ++args; } } /* 'z' only matches $0. */ @@ -8215,14 +8222,14 @@ mips_ip (str, ip) c = *args; if (*s == ' ') - s++; + ++s; if (args[1] != *s) { if (c == 'V' || c == 'W') { regno = lastregno; s = s_reset; - args++; + ++args; } } switch (c) @@ -8955,7 +8962,7 @@ mips16_ip (str, ip) { regno = mips16_to_32_reg_map[lastregno]; s = s_reset; - args++; + ++args; } } @@ -9223,7 +9230,7 @@ mips16_ip (str, ip) mask |= (reg2 - 3) << 3; else if (reg1 == 16 && reg2 >= 16 && reg2 <= 17) mask |= (reg2 - 15) << 1; - else if (reg1 == 31 && reg2 == 31) + else if (reg1 == RA && reg2 == RA) mask |= 1; else { @@ -9532,9 +9539,9 @@ my_getSmallParser (str, len, nestlevel) for (s = *str + 1; *s && pcnt; s++, (*len)++) { if (*s == '(') - pcnt++; + ++pcnt; else if (*s == ')') - pcnt--; + --pcnt; } } } @@ -9573,7 +9580,7 @@ my_getPercentOp (str, len, nestlevel) return S_EX_NONE; *len = strlen (percent_op[i].str); - (*nestlevel)++; + ++(*nestlevel); return type; } } @@ -9630,9 +9637,9 @@ my_getSmallExpression (ep, str) for (end = strchr (s, '(') + 1; *end && pcnt; end++) { if (*end == '(') - pcnt++; + ++pcnt; else if (*end == ')') - pcnt--; + --pcnt; } memset (s, ' ', end - s); @@ -11077,7 +11084,7 @@ s_align (x) } if (*input_line_pointer == ',') { - input_line_pointer++; + ++input_line_pointer; temp_fill = get_absolute_expression (); } else @@ -11342,7 +11349,7 @@ s_mipsset (x) char *name = input_line_pointer, ch; while (!is_end_of_line[(unsigned char) *input_line_pointer]) - input_line_pointer++; + ++input_line_pointer; ch = *input_line_pointer; *input_line_pointer = '\0'; @@ -11625,11 +11632,11 @@ s_cpsetup (ignore) return; } else - input_line_pointer++; + ++input_line_pointer; SKIP_WHITESPACE (); sym = input_line_pointer; while (ISALNUM (*input_line_pointer)) - input_line_pointer++; + ++input_line_pointer; *input_line_pointer = 0; ex_sym.X_op = O_symbol; @@ -11854,8 +11861,7 @@ static void s_insn (ignore) int ignore ATTRIBUTE_UNUSED; { - if (mips_opts.mips16) - mips16_mark_labels (); + mips16_mark_labels (); demand_empty_rest_of_line (); } @@ -11870,7 +11876,7 @@ static void s_mips_stab (type) int type; { - if (type == 'n' && mips_opts.mips16) + if (type == 'n') mips16_mark_labels (); s_stab (type); @@ -12954,7 +12960,7 @@ mips_handle_align (fragp) if (bytes & 1) { *p++ = 0; - fragp->fr_fix += 1; + fragp->fr_fix++; } memcpy (p, (target_big_endian ? be_nop : le_nop), 2); @@ -13126,7 +13132,7 @@ s_mips_end (x) subseg_set (saved_seg, saved_subseg); } -#endif +#endif /* MIPS_STABS_ELF */ cur_proc_ptr = NULL; } @@ -13142,7 +13148,7 @@ s_mips_ent (aent) symbolP = get_symbol (); if (*input_line_pointer == ',') - input_line_pointer++; + ++input_line_pointer; SKIP_WHITESPACE (); if (ISDIGIT (*input_line_pointer) || *input_line_pointer == '-') @@ -13179,7 +13185,7 @@ s_mips_ent (aent) symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION; - numprocs++; + ++numprocs; } demand_empty_rest_of_line (); -- 2.30.2