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fe39da53e3
The new visitor class is used for IR generation. This removes some modifications from DMD source.
75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
//===-- target.cpp -------------------------------------------------------===//
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//
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// LDC – the LLVM D compiler
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//
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// This file is distributed under the BSD-style LDC license. See the LICENSE
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// file for details.
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//
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//===----------------------------------------------------------------------===//
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#include "target.h"
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#include "gen/irstate.h"
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#include "mars.h"
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#include "mtype.h"
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#include <assert.h>
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#if defined(_MSC_VER)
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#include <windows.h>
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#else
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#include <pthread.h>
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#endif
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int Target::ptrsize;
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int Target::realsize;
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int Target::realpad;
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int Target::realalignsize;
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bool Target::reverseCppOverloads;
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void Target::init()
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{
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ptrsize = gDataLayout->getPointerSize(ADDRESS_SPACE);
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llvm::Type* real = DtoType(Type::basic[Tfloat80]);
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realsize = gDataLayout->getTypeAllocSize(real);
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realpad = realsize - gDataLayout->getTypeStoreSize(real);
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realalignsize = gDataLayout->getABITypeAlignment(real);
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reverseCppOverloads = false; // DMC is not supported.
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}
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/******************************
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* Return memory alignment size of type.
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*/
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unsigned Target::alignsize (Type* type)
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{
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assert (type->isTypeBasic());
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if (type->ty == Tvoid) return 1;
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return gDataLayout->getABITypeAlignment(DtoType(type));
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}
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/******************************
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* Return field alignment size of type.
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*/
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unsigned Target::fieldalign (Type* type)
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{
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// LDC_FIXME: Verify this.
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return type->alignsize();
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}
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// sizes based on those from tollvm.cpp:DtoMutexType()
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unsigned Target::critsecsize()
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{
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#if defined(_MSC_VER)
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// Return sizeof(RTL_CRITICAL_SECTION)
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return global.params.is64bit ? 40 : 24;
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#else
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if (global.params.targetTriple.isOSWindows())
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return global.params.is64bit ? 40 : 24;
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else if (global.params.targetTriple.getOS() == llvm::Triple::FreeBSD)
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return sizeof(size_t);
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else
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return sizeof(pthread_mutex_t);
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#endif
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}
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