Mercurial > projects > ldc
view tools/binding/llvmsample3.d @ 1404:11b122f92136
Now that templates instantiations are no longer emitted for all modules that
even blink at them they seem to break due to being linkonce (if compiled with
any optimization level > 0), so let's give them weak linkage instead.
The difference is that unreferenced linkonce symbols can be deleted, while
weak symbols need to be preserved.
author | Frits van Bommel <fvbommel wxs.nl> |
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date | Thu, 21 May 2009 15:23:28 +0200 |
parents | 1ba61de8796b |
children |
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// simple example that shows off getting D wrappers from C values. module llvmsample3; import llvm.c.Core; import llvm.llvm; void main() { auto m = new Module("sample3"); // global int32 auto gi = m.addGlobal(Type.Int32, "myint"); gi.initializer = ConstantInt.GetU(Type.Int32, 42); // this is not a cached value, it's recreated dynamically auto _i = gi.initializer; auto ci = cast(ConstantInt)_i; assert(ci !is null); ci.dump; // global struct auto st = StructType.Get([Type.Double,Type.Double,Type.Double]); auto gs = m.addGlobal(st, "mystruct"); auto elems = new Constant[3]; foreach(i,ref e; elems) e = ConstantReal.Get(Type.Double, i+1); gs.initializer = ConstantStruct.Get(elems); // again this is not a cached value. auto s = gs.initializer; auto cs = cast(ConstantStruct)s; assert(cs !is null); cs.dump; }