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annotate gen/elem.c @ 4:e116aa1488e6 trunk

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[svn r8] changed backend includes to always use the gen/<foo>.h prefix fixed passing string literals as array parameters few other fixes moved some array routines into gen/arrays
author lindquist
date Mon, 03 Sep 2007 17:34:30 +0200
parents c53b6e3fe49a
children d3ee9efe20e2
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1 #include <iostream>
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2
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3 #include "llvm/Instructions.h"
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4
4
e116aa1488e6 [svn r8] changed backend includes to always use the gen/<foo>.h prefix
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5 #include "gen/elem.h"
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6 #include "gen/irstate.h"
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7 #include "gen/logger.h"
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9 //////////////////////////////////////////////////////////////////////////////////////////
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10
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11 elem::elem()
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12 {
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13 mem = 0;
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14 val = 0;
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15 arg = 0;
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16
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17 type = NONE;
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18 inplace = false;
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19 field = false;
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20
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21 vardecl = 0;
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22 funcdecl = 0;
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23 }
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24
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25 llvm::Value* elem::getValue()
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26 {
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27 assert(val || mem);
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28 switch(type)
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29 {
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30 case NONE:
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31 assert(0 && "type == NONE");
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32 break;
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33
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34 case VAR:
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35 case REF: {
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36 if (val) {
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37 return val;
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38 }
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39 else {
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40 if (!llvm::isa<llvm::PointerType>(mem->getType()))
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41 {
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42 Logger::cout() << "unexpected type: " << *mem->getType() << '\n';
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43 assert(0);
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44 }
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45 const llvm::PointerType* pt = llvm::cast<llvm::PointerType>(mem->getType());
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46 if (!pt->getElementType()->isFirstClassType()) {
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47 return mem;
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48 }
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49 else {
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50 return new llvm::LoadInst(mem, "tmp", gIR->scopebb());
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51 }
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52 }
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53 }
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54
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55 case VAL:
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56 case NUL:
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57 case FUNC:
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58 case CONST:
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59 case SLICE:
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60 return val ? val : mem;
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61 }
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62 assert(0 && "type == invalid value");
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63 return 0;
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64 }