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view gen/todebug.h @ 1499:df11cdec45a2
Another shot at fixing the issues with (constant) struct literals and their addresses. See DMD2682, #218, #324.
The idea is to separate the notion of const from 'this variable can always be
replaced with its initializer' in the frontend. To do that, I introduced
Declaration::isSameAsInitializer, which is overridden in VarDeclaration to
return false for constants that have a struct literal initializer.
So
{{{
const S s = S(5);
void foo() { auto ps = &s; }
// is no longer replaced by
void foo() { auto ps = &(S(5)); }
}}}
To make taking the address of a struct constant with a struct-initializer
outside of function scope possible, I made sure that AddrExp::optimize doesn't
try to run the argument's optimization with WANTinterpret - that'd again
replace the constant with a struct literal temporary.
| author | Christian Kamm <kamm incasoftware de> |
|---|---|
| date | Sun, 14 Jun 2009 19:49:58 +0200 |
| parents | 1714836f2c0b |
| children | 40bd4a0d4870 |
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#ifndef LDC_GEN_TODEBUG_H #define LDC_GEN_TODEBUG_H void RegisterDwarfSymbols(llvm::Module* mod); /** * Emit the Dwarf compile_unit global for a Module m. * @param m * @return the Dwarf compile_unit. */ llvm::DICompileUnit DtoDwarfCompileUnit(Module* m); /** * Emit the Dwarf subprogram global for a function declaration fd. * @param fd * @return the Dwarf subprogram global. */ llvm::DISubprogram DtoDwarfSubProgram(FuncDeclaration* fd); /** * Emit the Dwarf subprogram global for a internal function. * This is used for generated functions like moduleinfoctors, * module ctors/dtors and unittests. * @return the Dwarf subprogram global. */ llvm::DISubprogram DtoDwarfSubProgramInternal(const char* prettyname, const char* mangledname); void DtoDwarfFuncStart(FuncDeclaration* fd); void DtoDwarfFuncEnd(FuncDeclaration* fd); void DtoDwarfStopPoint(unsigned ln); /** * Emits all things necessary for making debug info for a local variable vd. * @param ll LLVM Value of the variable. * @param vd Variable declaration to emit debug info for. */ void DtoDwarfLocalVariable(LLValue* ll, VarDeclaration* vd); /** * Emits all things necessary for making debug info for a global variable vd. * @param ll * @param vd * @return */ llvm::DIGlobalVariable DtoDwarfGlobalVariable(LLGlobalVariable* ll, VarDeclaration* vd); #endif // LDC_GEN_TODEBUG_H