view gen/passes/Passes.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 defafbabbe32
children c88b16d4a13c
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#ifndef LDC_PASSES_H
#define LDC_PASSES_H

#include "gen/metadata.h"
namespace llvm {
    class FunctionPass;
    class ModulePass;
}

// Performs simplifications on runtime calls.
llvm::FunctionPass* createSimplifyDRuntimeCalls();

#ifdef USE_METADATA
llvm::FunctionPass* createGarbageCollect2Stack();
llvm::ModulePass* createStripMetaData();
#endif

#if LLVM_REV >= 68940
llvm::ModulePass* createStripExternalsPass();
#endif

#endif