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"load (cast foo)". This allows us to compile C++ code like this: class Bclass { public: virtual int operator()() { return 666; } }; class Dclass: public Bclass { public: virtual int operator()() { return 667; } } ; int main(int argc, char** argv) { Dclass x; return x(); } Into this: int %main(int %argc, sbyte** %argv) { entry: call void %__main( ) ret int 667 } Instead of this: int %main(int %argc, sbyte** %argv) { entry: %x = alloca "struct.std::bad_typeid" ; <"struct.std::bad_typeid"*> [#uses=3] call void %__main( ) %tmp.1.i.i = getelementptr "struct.std::bad_typeid"* %x, uint 0, uint 0, uint 0 ; <int (...)***> [#uses=1] store int (...)** getelementptr ([3 x int (...)*]* %vtable for Bclass, int 0, long 2), int (...)*** %tmp.1.i.i %tmp.3.i = getelementptr "struct.std::bad_typeid"* %x, int 0, uint 0, uint 0 ; <int (...)***> [#uses=1] store int (...)** getelementptr ([3 x int (...)*]* %vtable for Dclass, int 0, long 2), int (...)*** %tmp.3.i %tmp.5 = load int ("struct.std::bad_typeid"*)** cast (int (...)** getelementptr ([3 x int (...)*]* %vtable for Dclass, int 0, long 2) to int ("struct.std::bad_typeid"*)**) ; <int ("struct.std::bad_typeid"*)*> [#uses=1] %tmp.6 = call int %tmp.5( "struct.std::bad_typeid"* %x ) ; <int> [#uses=1] ret int %tmp.6 ret int 0 } In order words, we now resolve the virtual function call. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14783 91177308-0d34-0410-b5e6-96231b3b80d8 |
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.. | ||
Hello | ||
Instrumentation | ||
IPO | ||
Scalar | ||
Utils | ||
ExprTypeConvert.cpp | ||
LevelRaise.cpp | ||
Makefile | ||
TransformInternals.cpp | ||
TransformInternals.h |