From 1b52469766e713be0f465299b197519c70ab641b Mon Sep 17 00:00:00 2001 From: Martin Hunt Date: Sat, 22 Feb 1997 00:29:55 +0000 Subject: [PATCH] Fri Feb 21 14:34:31 1997 Martin M. Hunt * config/tc-d30v.c (parallel_ok): New function. * config/tc-d30v.h: Define TARGET_BYTES_BIG_ENDIAN. --- gas/ChangeLog | 5 +- gas/config/tc-d30v.c | 203 ++++++++++++++----------------------------- 2 files changed, 69 insertions(+), 139 deletions(-) diff --git a/gas/ChangeLog b/gas/ChangeLog index e364f4af42c..d87dbe18bc1 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,8 @@ Fri Feb 21 14:34:31 1997 Martin M. Hunt - +start-sanitize-d30v + * config/tc-d30v.c (parallel_ok): New function. + * config/tc-d30v.h: Define TARGET_BYTES_BIG_ENDIAN. +end-sanitize-d30v * config/tc-d10v.c (md_pcrel_from_section): Return 0 if relocation is in different section. Fixes PR11574. diff --git a/gas/config/tc-d30v.c b/gas/config/tc-d30v.c index b25f3735529..88d7e6cacde 100644 --- a/gas/config/tc-d30v.c +++ b/gas/config/tc-d30v.c @@ -447,34 +447,6 @@ get_operands (exp, cmp_hack) return (numops); } -#if 0 -static unsigned long -d30v_insert_operand (insn, op_type, value, left, fix) - unsigned long insn; - int op_type; - offsetT value; - int left; - fixS *fix; -{ - int shift, bits; - - shift = d30v_operands[op_type].shift; - if (left) - shift += 15; - - bits = d30v_operands[op_type].bits; - - /* truncate to the proper number of bits */ - if (check_range (value, bits, d30v_operands[op_type].flags)) - as_bad_where (fix->fx_file, fix->fx_line, "operand out of range: %d", value); - - value &= 0x7FFFFFFF >> (31 - bits); - insn |= (value << shift); - - return insn; -} -#endif - /* build_insn generates the instruction. It does everything */ /* but write the FM bits. */ @@ -526,7 +498,6 @@ build_insn (opcode, opers) number = id; } - if (Optimizing) printf("bits=%d length=%d shift=%d number=%x\n",bits,length,shift,number); if (opers[i].X_op != O_register && opers[i].X_op != O_constant && !(flags & OPERAND_NAME)) { @@ -541,7 +512,6 @@ build_insn (opcode, opers) fixups->fix[fixups->fc].exp = opers[i]; fixups->fix[fixups->fc].operand = form->operands[i]; fixups->fix[fixups->fc].pcrel = op->reloc_flag; - if (Optimizing) printf("fixup %d: reloc=%d operand=%d\n",fixups->fc,fixups->fix[fixups->fc].reloc,form->operands[i]); (fixups->fc)++; } @@ -585,7 +555,6 @@ write_long (opcode, insn, fx) if (fx->fix[i].reloc) { where = f - frag_now->fr_literal; - if (Optimizing) printf("write_L: reloc at %x\n",where); fix_new_exp (frag_now, where, fx->fix[i].size, @@ -623,7 +592,6 @@ write_1_short (opcode, insn, fx) if (fx->fix[i].reloc) { where = f - frag_now->fr_literal; - if (Optimizing) printf("write_1: reloc at %x\n",where); fix_new_exp (frag_now, where, fx->fix[i].size, @@ -648,8 +616,6 @@ write_2_short (opcode1, insn1, opcode2, insn2, exec_type, fx) char *f; int i,j, where; - if (Optimizing) printf("write_2_short: %llx %llx exec=%d\n",insn1,insn2,exec_type); - if(exec_type != 1 && (opcode1->op->flags_used == FLAG_JSR)) { /* subroutines must be called from 32-bit boundaries */ @@ -735,7 +701,6 @@ write_2_short (opcode1, insn1, opcode2, insn2, exec_type, fx) { where = (f - frag_now->fr_literal) + 4*j; - if (Optimizing) printf("write_2: reloc at %x\n",where); fix_new_exp (frag_now, where, fx->fix[i].size, @@ -759,105 +724,91 @@ parallel_ok (op1, insn1, op2, insn2, exec_type) unsigned long insn1, insn2; int exec_type; { -#if 0 - int i, j, flags, mask, shift, regno; - unsigned long ins, mod[2], used[2]; - struct d30v_insn *op; - - if ((op1->exec_type & SEQ) != 0 || (op2->exec_type & SEQ) != 0 - || (op1->exec_type & PAR) == 0 || (op2->exec_type & PAR) == 0 - || (op1->unit == BOTH) || (op2->unit == BOTH) - || (op1->unit == IU && op2->unit == IU) - || (op1->unit == MU && op2->unit == MU)) + int i, j, flags, mask, shift, regno, bits; + unsigned long ins, mod_reg[2][3], used_reg[2][3]; + struct d30v_format *f; + struct d30v_opcode *op; + + /* section 4.3: both instructions must not be IU or MU only */ + if ((op1->op->unit == IU && op2->op->unit == IU) + || (op1->op->unit == MU && op2->op->unit == MU)) return 0; - /* If the first instruction is a branch and this is auto parallazation, - don't combine with any second instruction. */ - if (exec_type == 0 && (op1->exec_type & BRANCH) != 0) - return 0; + /* + [0] r0-r31 + [1] r32-r63 + [2] a0, a1 + */ - /* The idea here is to create two sets of bitmasks (mod and used) */ - /* which indicate which registers are modified or used by each instruction. */ - /* The operation can only be done in parallel if instruction 1 and instruction 2 */ - /* modify different registers, and neither instruction modifies any registers */ - /* the other is using. Accesses to control registers, PSW, and memory are treated */ - /* as accesses to a single register. So if both instructions write memory or one */ - /* instruction writes memory and the other reads, then they cannot be done in parallel. */ - /* Likewise, if one instruction mucks with the psw and the other reads the PSW */ - /* (which includes C, F0, and F1), then they cannot operate safely in parallel. */ - - /* the bitmasks (mod and used) look like this (bit 31 = MSB) */ - /* r0-r15 0-15 */ - /* a0-a1 16-17 */ - /* cr (not psw) 18 */ - /* psw 19 */ - /* mem 20 */ - - for (j=0;j<2;j++) + for (j = 0; j < 2; j++) { if (j == 0) { - op = op1; + f = op1->form; + op = op1->op; ins = insn1; } else { - op = op2; + f = op2->form; + op = op2->op; ins = insn2; } - mod[j] = used[j] = 0; - if (op->exec_type & BRANCH_LINK) - mod[j] |= 1 << 13; - - for (i = 0; op->operands[i]; i++) + mod_reg[j][0] = mod_reg[j][1] = 0; + mod_reg[j][2] = op->flags_set; + used_reg[j][0] = used_reg[j][1] = 0; + used_reg[j][2] = op->flags_used; + for (i = 0; f->operands[i]; i++) { - flags = d30v_operands[op->operands[i]].flags; - shift = d30v_operands[op->operands[i]].shift; - mask = 0x7FFFFFFF >> (31 - d30v_operands[op->operands[i]].bits); + flags = d30v_operand_table[f->operands[i]].flags; + shift = 12 - d30v_operand_table[f->operands[i]].position; + bits = d30v_operand_table[f->operands[i]].bits; + if (bits == 32) + mask = 0xffffffff; + else + mask = 0x7FFFFFFF >> (31 - bits); if (flags & OPERAND_REG) { regno = (ins >> shift) & mask; - if (flags & OPERAND_ACC) - regno += 16; - else if (flags & OPERAND_CONTROL) /* mvtc or mvfc */ - { - if (regno == 0) - regno = 19; - else - regno = 18; - } - else if (flags & OPERAND_FLAG) - regno = 19; - - if ( flags & OPERAND_DEST ) + if (flags & OPERAND_DEST) { - mod[j] |= 1 << regno; - if (flags & OPERAND_EVEN) - mod[j] |= 1 << (regno + 1); + if (flags & OPERAND_ACC) + mod_reg[j][2] = 1 << (regno+16); + else if (flags & OPERAND_FLAG) + mod_reg[j][2] = 1 << regno; + else if (!(flags & OPERAND_CONTROL)) + { + if (regno >= 32) + mod_reg[j][1] = 1 << (regno - 32); + else + mod_reg[j][0] = 1 << regno; + } } else { - used[j] |= 1 << regno ; - if (flags & OPERAND_EVEN) - used[j] |= 1 << (regno + 1); + if (flags & OPERAND_ACC) + used_reg[j][2] = 1 << (regno+16); + else if (flags & OPERAND_FLAG) + used_reg[j][2] = 1 << regno; + else if (!(flags & OPERAND_CONTROL)) + { + if (regno >= 32) + used_reg[j][1] = 1 << (regno - 32); + else + used_reg[j][0] = 1 << regno; + } } } } - if (op->exec_type & RMEM) - used[j] |= 1 << 20; - else if (op->exec_type & WMEM) - mod[j] |= 1 << 20; - else if (op->exec_type & RF0) - used[j] |= 1 << 19; - else if (op->exec_type & WF0) - mod[j] |= 1 << 19; - else if (op->exec_type & WCAR) - mod[j] |= 1 << 19; } - if ((mod[0] & mod[1]) == 0 && (mod[0] & used[1]) == 0 && (mod[1] & used[0]) == 0) - return 1; -#endif - return 0; + + for(j = 0; j < 3; j++) + if ((mod_reg[0][j] & mod_reg[1][j]) + || (mod_reg[0][j] & used_reg[1][j]) + || (mod_reg[1][j] & used_reg[0][j])) + return 0; + + return 1; } @@ -985,8 +936,6 @@ do_assemble (str, opcode) expressionS myops[6]; long long insn; - if (Optimizing) printf("do_assemble %s\n",str); - /* Drop leading whitespace */ while (*str == ' ') str++; @@ -1074,7 +1023,6 @@ do_assemble (str, opcode) input_line_pointer = save; insn = build_insn (opcode, myops); - if (Optimizing) printf("insn=%llx\n",insn); return (insn); } @@ -1093,8 +1041,6 @@ find_format (opcode, myops, cmp_hack) struct d30v_format *fm; struct d30v_operand *op; - if (Optimizing) printf("find_format: %s\n",opcode->name); - /* get all the operands and save them as expressions */ numops = get_operands (myops, cmp_hack); @@ -1112,7 +1058,6 @@ find_format (opcode, myops, cmp_hack) int X_op = myops[j].X_op; int num = myops[j].X_add_number; - if (Optimizing) printf("form=%d mod=%d opnum=%d flags=%x X_op=%d num=%d\n",index,fm->modifier,j,flags,X_op,num); if ( flags & OPERAND_SPECIAL ) break; else if (X_op == 0) @@ -1125,7 +1070,6 @@ find_format (opcode, myops, cmp_hack) (flags & OPERAND_CONTROL && !(num & OPERAND_CONTROL | num & OPERAND_FLAG))) { match = 0; - if (Optimizing) printf("failed 1\n"); } } else @@ -1135,7 +1079,6 @@ find_format (opcode, myops, cmp_hack) ((flags & OPERAND_ATPAR) && ((X_op != O_absent) || (num != OPERAND_ATPAR))) || ((flags & OPERAND_ATSIGN) && ((X_op != O_absent) || (num != OPERAND_ATSIGN)))) { - if (Optimizing) printf("failed 2\n"); match=0; } else if (flags & OPERAND_NUM) @@ -1165,17 +1108,13 @@ find_format (opcode, myops, cmp_hack) /* and adding our current offset */ for (value = 0, f = frchain_now->frch_root; f; f = f->fr_next) value += f->fr_fix + f->fr_offset; - if (Optimizing) printf("offset=%d (0x%x) value=%d (0x%x)\n",value,value, - S_GET_VALUE(myops[j].X_add_symbol),S_GET_VALUE(myops[j].X_add_symbol) ); if (opcode->reloc_flag == RELOC_PCREL) value = S_GET_VALUE(myops[j].X_add_symbol) - value - (obstack_next_free(&frchain_now->frch_obstack) - frag_now->fr_literal); else value = S_GET_VALUE(myops[j].X_add_symbol); - if (Optimizing) printf("symbol value=%d (0x%x) reloc=%d\n",value,value,opcode->reloc_flag); if (check_range (value, d30v_operand_table[fm->operands[j]].bits, flags)) match = 0; - if (Optimizing) printf("match=%d\n",match); } else match = 0; @@ -1207,7 +1146,6 @@ tc_gen_reloc (seg, fixp) reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym; reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); - if (Optimizing) printf("tc_gen_reloc: addr=%x howto=%x\n",reloc->address,reloc->howto); if (reloc->howto == (reloc_howto_type *) NULL) { as_bad_where (fixp->fx_file, fixp->fx_line, @@ -1259,20 +1197,18 @@ md_apply_fix3 (fixp, valuep, seg) else if (fixp->fx_pcrel) { value = *valuep; - if (Optimizing) printf("value=0x%lx\n",value); - } else + } + else { value = fixp->fx_offset; - if (Optimizing) printf("Value=0x%lx\n",value); if (fixp->fx_subsy != (symbolS *) NULL) { - if (Optimizing) printf("subsy != NULL\n"); if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section) value -= S_GET_VALUE (fixp->fx_subsy); else { /* We don't actually support subtracting a symbol. */ - as_bad_where (fixp->fx_file, fixp->fx_line, + as_bad_where (fixp->fx_file, fixp->fx_line, "expression too complex"); } } @@ -1282,42 +1218,35 @@ md_apply_fix3 (fixp, valuep, seg) value, and stuff the instruction back again. */ where = fixp->fx_frag->fr_literal + fixp->fx_where; insn = bfd_getb32 ((unsigned char *) where); - - if (Optimizing) printf("md_apply_fix3: type=%ld where=%lx insn=%lx value=%lx\n",fixp->fx_r_type,where,insn,value); + switch (fixp->fx_r_type) { case BFD_RELOC_D30V_6: - if (Optimizing) printf("BFD_RELOC_D30V_6\n"); insn |= value & 0x3F; bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); break; case BFD_RELOC_D30V_15: - if (Optimizing) printf("BFD_RELOC_D30V_15\n"); insn |= (value >> 3) & 0xFFF; bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); break; case BFD_RELOC_D30V_15_PCREL: if ((long)fixp->fx_where & 0x7) value += 4; - if (Optimizing) printf("BFD_RELOC_D30V_15_PCREL\n"); insn |= (value >> 3) & 0xFFF; bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); break; case BFD_RELOC_D30V_21: - if (Optimizing) printf("BFD_RELOC_D30V_21\n"); insn |= (value >> 3) & 0x3FFFF; bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); break; case BFD_RELOC_D30V_21_PCREL: if ((long)fixp->fx_where & 0x7) value += 4; - if (Optimizing) printf("BFD_RELOC_D30V_21_PCREL: insn=%lx value=%lx\n",insn,(long)value); insn |= (value >> 3) & 0x3FFFF; bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); break; case BFD_RELOC_D30V_32: insn2 = bfd_getb32 ((unsigned char *) where + 4); - if (Optimizing) printf("BFD_RELOC_D30V_32: insn=0x%08x%08x\n",(int)insn,(int)insn2); insn |= (value >> 26) & 0x3F; /* top 6 bits */ insn2 |= ((value & 0x03FC0000) << 2); /* next 8 bits */ insn2 |= value & 0x0003FFFF; /* bottom 18 bits */ @@ -1328,7 +1257,6 @@ md_apply_fix3 (fixp, valuep, seg) if ((long)fixp->fx_where & 0x7) value += 4; insn2 = bfd_getb32 ((unsigned char *) where + 4); - if (Optimizing) printf("BFD_RELOC_D30V_32_PCREL: insn=0x%08x%08x\n",(int)insn,(int)insn2); insn |= (value >> 26) & 0x3F; /* top 6 bits */ insn2 |= ((value & 0x03FC0000) << 2); /* next 8 bits */ insn2 |= value & 0x0003FFFF; /* bottom 18 bits */ @@ -1336,7 +1264,6 @@ md_apply_fix3 (fixp, valuep, seg) bfd_putb32 ((bfd_vma) insn2, (unsigned char *) where + 4); break; case BFD_RELOC_32: - if (Optimizing) printf("BFD_RELOC_32: insn=0x%08x value=0x%x\n",(int)insn,(int)value); bfd_putb32 ((bfd_vma) value, (unsigned char *) where); break; default: -- 2.30.2