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annotate tools/binding/llvmsample3.d @ 1273:1ba61de8796b

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Committing LLVM binding for D as it currently exists in the SVN repository.
author Frits van Bommel <fvbommel wxs.nl>
date Mon, 27 Apr 2009 22:33:17 +0200
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1273
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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1 // simple example that shows off getting D wrappers from C values.
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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2 module llvmsample3;
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3
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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4 import llvm.c.Core;
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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5 import llvm.llvm;
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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6
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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7 void main()
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8 {
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9 auto m = new Module("sample3");
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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10
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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11 // global int32
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12 auto gi = m.addGlobal(Type.Int32, "myint");
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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13 gi.initializer = ConstantInt.GetU(Type.Int32, 42);
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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14
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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15 // this is not a cached value, it's recreated dynamically
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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16 auto _i = gi.initializer;
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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17 auto ci = cast(ConstantInt)_i;
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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18 assert(ci !is null);
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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19 ci.dump;
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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20
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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21 // global struct
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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22 auto st = StructType.Get([Type.Double,Type.Double,Type.Double]);
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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23 auto gs = m.addGlobal(st, "mystruct");
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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24 auto elems = new Constant[3];
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25 foreach(i,ref e; elems)
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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26 e = ConstantReal.Get(Type.Double, i+1);
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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27 gs.initializer = ConstantStruct.Get(elems);
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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28
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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29 // again this is not a cached value.
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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30 auto s = gs.initializer;
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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31 auto cs = cast(ConstantStruct)s;
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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32 assert(cs !is null);
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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33
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34 cs.dump;
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35 }