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annotate gen/elem.c @ 83:339422268de1 trunk

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[svn r87] Fixed some memory bloat when passing string literals as char[] params (double temporary before)
author lindquist
date Fri, 02 Nov 2007 02:03:13 +0100
parents 0c77619e803b
children
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1 #include <iostream>
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8b0e809563df [svn r44] Lots of bug fixes.
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3 #include "gen/llvm.h"
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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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d3ee9efe20e2 [svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
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20 callconv = (unsigned)-1;
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37a4fdab33fc [svn r19] * Added support for reassigning 'this' inside class constructors.
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21 isthis = false;
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0c77619e803b [svn r56] Initial support for TypeInfo.
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22 istypeinfo = false;
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339422268de1 [svn r87] Fixed some memory bloat when passing string literals as char[] params (double temporary before)
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23 temp = false;
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24
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25 vardecl = 0;
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26 funcdecl = 0;
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27 }
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28
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29 llvm::Value* elem::getValue()
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30 {
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31 assert(val || mem);
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32 switch(type)
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33 {
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34 case NONE:
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35 assert(0 && "type == NONE");
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36 break;
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37
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38 case VAR:
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4648206ca213 [svn r38] * resizing dynamic arrays support
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39 case REF:
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40 case ARRAYLEN:
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41 if (val) {
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42 return val;
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43 }
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44 else {
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45 if (!llvm::isa<llvm::PointerType>(mem->getType()))
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46 {
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47 Logger::cout() << "unexpected type: " << *mem->getType() << '\n';
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48 assert(0);
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49 }
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50 const llvm::PointerType* pt = llvm::cast<llvm::PointerType>(mem->getType());
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51 if (!pt->getElementType()->isFirstClassType()) {
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52 return mem;
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53 }
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54 else {
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55 return gIR->ir->CreateLoad(mem, "tmp");
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56 }
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57 }
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58
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59 case VAL:
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60 case NUL:
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61 case FUNC:
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62 case CONST:
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63 case SLICE:
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64 return val ? val : mem;
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65 }
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66 assert(0 && "type == invalid value");
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67 return 0;
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68 }