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https://github.com/xomboverlord/ldc.git
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3392f70a4e
The code is tightly coupled to TargetABI (the transformations there only make sense knowing that the right CC is selected).
78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
//===-- abi-x86-64.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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//
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// The PowerOpen 64bit ABI can be found here:
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// http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi-1.9.html
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//
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//===----------------------------------------------------------------------===//
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#include "gen/abi-ppc64.h"
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#include "gen/abi.h"
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#include "gen/dvalue.h"
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#include "gen/irstate.h"
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#include "gen/llvmhelpers.h"
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#include "gen/tollvm.h"
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struct PPC64TargetABI : TargetABI {
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llvm::CallingConv::ID callingConv(LINK l)
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{
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switch (l)
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{
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case LINKc:
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case LINKcpp:
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case LINKintrinsic:
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case LINKpascal:
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case LINKwindows:
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return llvm::CallingConv::C;
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case LINKd:
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case LINKdefault:
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return llvm::CallingConv::Fast;
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default:
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llvm_unreachable("Unhandled D linkage type.");
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}
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}
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void newFunctionType(TypeFunction* tf)
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{
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}
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bool returnInArg(TypeFunction* tf)
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{
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#if DMDV2
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if (tf->isref)
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return false;
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#endif
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// Return structs and static arrays on the stack. The latter is needed
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// because otherwise LLVM tries to actually return the array in a number
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// of physical registers, which leads, depending on the target, to
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// either horrendous codegen or backend crashes.
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Type* rt = tf->next->toBasetype();
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return (rt->ty == Tstruct || rt->ty == Tsarray);
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}
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bool passByVal(Type* t)
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{
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return t->toBasetype()->ty == Tstruct;
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}
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void doneWithFunctionType()
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{
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}
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void rewriteFunctionType(TypeFunction* tf)
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{
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}
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};
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// The public getter for abi.cpp
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TargetABI* getPPC64TargetABI()
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{
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return new PPC64TargetABI();
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}
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