1 | /* $Id: put.c,v 1.17 2008/05/11 15:28:03 ragge Exp $ */
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2 | /*
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3 | * Copyright(C) Caldera International Inc. 2001-2002. All rights reserved.
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4 | *
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5 | * Redistribution and use in source and binary forms, with or without
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6 | * modification, are permitted provided that the following conditions
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7 | * are met:
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8 | *
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9 | * Redistributions of source code and documentation must retain the above
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10 | * copyright notice, this list of conditions and the following disclaimer.
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11 | * Redistributions in binary form must reproduce the above copyright
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12 | * notice, this list of conditions and the following disclaimer in the
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13 | * documentation and/or other materials provided with the distribution.
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14 | * All advertising materials mentioning features or use of this software
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15 | * must display the following acknowledgement:
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16 | * This product includes software developed or owned by Caldera
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17 | * International, Inc.
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18 | * Neither the name of Caldera International, Inc. nor the names of other
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19 | * contributors may be used to endorse or promote products derived from
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20 | * this software without specific prior written permission.
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21 | *
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22 | * USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
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23 | * INTERNATIONAL, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
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24 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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25 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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26 | * DISCLAIMED. IN NO EVENT SHALL CALDERA INTERNATIONAL, INC. BE LIABLE
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27 | * FOR ANY DIRECT, INDIRECT INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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30 | * HOWEVER CAUSED AND ON ANY THEORY OFLIABILITY, WHETHER IN CONTRACT,
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31 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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32 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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33 | * POSSIBILITY OF SUCH DAMAGE.
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34 | */
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35 | /*
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36 | * INTERMEDIATE CODE GENERATION PROCEDURES COMMON TO BOTH
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37 | * JOHNSON AND RITCHIE FAMILIES OF SECOND PASSES
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38 | */
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39 |
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40 | #include "defines.h"
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41 | #include "defs.h"
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42 |
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43 | #include "scjdefs.h"
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44 |
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45 | char *ops [ ] =
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46 | {
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47 | "??", "+", "-", "*", "/", "**", "-",
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48 | "OR", "AND", "EQV", "NEQV", "NOT",
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49 | "CONCAT",
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50 | "<", "==", ">", "<=", "!=", ">=",
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51 | " of ", " ofC ", " = ", " += ", " *= ", " CONV ", " << ", " % ",
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52 | " , ", " ? ", " : "
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53 | " abs ", " min ", " max ", " addr ", " indirect ",
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54 | " bitor ", " bitand ", " bitxor ", " bitnot ", " >> ",
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55 | };
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56 |
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57 | /*
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58 | * The index position here matches tho OPx numbers in defines.h.
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59 | * Do not change!
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60 | */
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61 | int ops2 [ ] =
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62 | {
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63 | P2BAD, P2PLUS, P2MINUS, P2STAR, P2SLASH, P2BAD, P2NEG,
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64 | P2BAD, P2BAD, P2EQ, P2NE, P2BAD,
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65 | P2BAD,
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66 | P2LT, P2EQ, P2GT, P2LE, P2NE, P2GE,
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67 | P2CALL, P2CALL, P2ASSIGN, P2BAD, P2BAD, P2CONV, P2LSHIFT, P2MOD,
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68 | P2BAD, P2BAD, P2BAD,
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69 | P2BAD, P2BAD, P2BAD, P2BAD, P2BAD,
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70 | P2BITOR, P2BITAND, P2BITXOR, P2BITNOT, P2RSHIFT
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71 | };
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72 |
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73 |
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74 | int types2 [ ] =
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75 | {
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76 | P2BAD, INT|PTR, SHORT, LONG, FLOAT, DOUBLE,
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77 | FLOAT, DOUBLE, LONG, CHAR, INT, P2BAD
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78 | };
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79 |
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80 | void
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81 | setlog()
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82 | {
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83 | types2[TYLOGICAL] = types2[tylogical];
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84 | }
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85 |
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86 | NODE *
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87 | putex1(bigptr q)
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88 | {
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89 | NODE *p;
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90 | q = fixtype(q);
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91 | p = putx(q);
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92 | templist = hookup(templist, holdtemps);
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93 | holdtemps = NULL;
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94 | return p;
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95 | }
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96 |
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97 | /*
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98 | * Print out an assignment.
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99 | */
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100 | void
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101 | puteq(bigptr lp, bigptr rp)
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102 | {
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103 | putexpr(mkexpr(OPASSIGN, lp, rp));
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104 | }
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105 |
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106 | /*
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107 | * Return a copied node of the real part of an expression.
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108 | */
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109 | struct bigblock *
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110 | realpart(struct bigblock *p)
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111 | {
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112 | struct bigblock *q;
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113 |
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114 | q = cpexpr(p);
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115 | if( ISCOMPLEX(p->vtype) )
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116 | q->vtype += (TYREAL-TYCOMPLEX);
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117 | return(q);
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118 | }
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119 |
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120 | /*
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121 | * Return a copied node of the imaginary part of an expression.
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122 | */
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123 | struct bigblock *
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124 | imagpart(struct bigblock *p)
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125 | {
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126 | struct bigblock *q;
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127 |
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128 | if( ISCOMPLEX(p->vtype) ) {
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129 | q = cpexpr(p);
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130 | q->vtype += (TYREAL-TYCOMPLEX);
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131 | q->b_addr.memoffset = mkexpr(OPPLUS, q->b_addr.memoffset,
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132 | MKICON(typesize[q->vtype]));
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133 | } else
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134 | q = mkrealcon( ISINT(p->vtype) ? TYDREAL : p->vtype , 0.0);
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135 | return(q);
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136 | }
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137 |
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138 | struct bigblock *
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139 | putconst(struct bigblock *p)
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140 | {
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141 | struct bigblock *q;
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142 | struct literal *litp, *lastlit;
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143 | int i, k, type;
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144 | int litflavor;
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145 |
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146 | if( ! ISCONST(p) )
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147 | fatal1("putconst: bad tag %d", p->tag);
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148 |
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149 | q = BALLO();
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150 | q->tag = TADDR;
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151 | type = p->vtype;
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152 | q->vtype = ( type==TYADDR ? TYINT : type );
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153 | q->vleng = cpexpr(p->vleng);
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154 | q->vstg = STGCONST;
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155 | q->b_addr.memno = newlabel();
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156 | q->b_addr.memoffset = MKICON(0);
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157 |
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158 | /* check for value in literal pool, and update pool if necessary */
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159 |
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160 | switch(type = p->vtype) {
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161 | case TYCHAR:
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162 | if(p->vleng->b_const.fconst.ci > XL)
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163 | break; /* too long for literal table */
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164 | litflavor = 1;
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165 | goto loop;
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166 |
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167 | case TYREAL:
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168 | case TYDREAL:
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169 | litflavor = 2;
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170 | goto loop;
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171 |
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172 | case TYLOGICAL:
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173 | type = tylogical;
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174 | case TYSHORT:
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175 | case TYLONG:
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176 | litflavor = 3;
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177 |
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178 | loop:
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179 | lastlit = litpool + nliterals;
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180 | for(litp = litpool ; litp<lastlit ; ++litp)
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181 | if(type == litp->littype)
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182 | switch(litflavor) {
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183 | case 1:
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184 | if(p->vleng->b_const.fconst.ci !=
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185 | litp->litval.litcval.litclen)
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186 | break;
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187 | if(!eqn((int)p->vleng->b_const.fconst.ci,
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188 | p->b_const.fconst.ccp,
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189 | litp->litval.litcval.litcstr) )
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190 | break;
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191 | ret:
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192 | q->b_addr.memno = litp->litnum;
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193 | frexpr(p);
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194 | return(q);
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195 |
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196 | case 2:
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197 | if(p->b_const.fconst.cd[0] ==
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198 | litp->litval.litdval)
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199 | goto ret;
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200 | break;
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201 |
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202 | case 3:
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203 | if(p->b_const.fconst.ci == litp->litval.litival)
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204 | goto ret;
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205 | break;
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206 | }
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207 | if(nliterals < MAXLITERALS) {
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208 | ++nliterals;
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209 | litp->littype = type;
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210 | litp->litnum = q->b_addr.memno;
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211 | switch(litflavor) {
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212 | case 1:
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213 | litp->litval.litcval.litclen =
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214 | p->vleng->b_const.fconst.ci;
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215 | cpn( (int) litp->litval.litcval.litclen,
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216 | p->b_const.fconst.ccp,
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217 | litp->litval.litcval.litcstr);
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218 | break;
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219 |
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220 | case 2:
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221 | litp->litval.litdval = p->b_const.fconst.cd[0];
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222 | break;
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223 |
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224 | case 3:
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225 | litp->litval.litival = p->b_const.fconst.ci;
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226 | break;
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227 | }
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228 | }
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229 | default:
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230 | break;
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231 | }
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232 |
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233 | preven(typealign[ type==TYCHAR ? TYLONG : type ]);
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234 | prlabel(q->b_addr.memno);
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235 |
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236 | k = 1;
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237 | switch(type) {
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238 | case TYLOGICAL:
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239 | case TYSHORT:
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240 | case TYLONG:
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241 | prconi(stdout, type, p->b_const.fconst.ci);
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242 | break;
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243 |
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244 | case TYCOMPLEX:
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245 | k = 2;
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246 | case TYREAL:
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247 | type = TYREAL;
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248 | goto flpt;
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249 |
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250 | case TYDCOMPLEX:
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251 | k = 2;
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252 | case TYDREAL:
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253 | type = TYDREAL;
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254 |
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255 | flpt:
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256 | for(i = 0 ; i < k ; ++i)
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257 | prconr(stdout, type, p->b_const.fconst.cd[i]);
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258 | break;
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259 |
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260 | case TYCHAR:
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261 | putstr(p->b_const.fconst.ccp,
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262 | p->vleng->b_const.fconst.ci);
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263 | break;
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264 |
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265 | case TYADDR:
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266 | prcona(p->b_const.fconst.ci);
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267 | break;
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268 |
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269 | default:
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270 | fatal1("putconst: bad type %d", p->vtype);
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271 | }
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272 |
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273 | frexpr(p);
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274 | return( q );
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275 | }
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276 |
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277 | /*
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278 | * put out a character string constant. begin every one on
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279 | * a long integer boundary, and pad with nulls
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280 | */
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281 | void
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282 | putstr(char *s, ftnint n)
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283 | {
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284 | int b[FSZSHORT];
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285 | int i;
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286 |
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287 | i = 0;
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288 | while(--n >= 0) {
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289 | b[i++] = *s++;
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290 | if(i == FSZSHORT) {
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291 | prchars(b);
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292 | i = 0;
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293 | }
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294 | }
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295 |
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296 | while(i < FSZSHORT)
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297 | b[i++] = '\0';
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298 | prchars(b);
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299 | }
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