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Fix a bug in the X86 ABI. The size of a struct is different from the size of a

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pointer to that struct...
This commit is contained in:
Frits van Bommel
2009-03-06 21:15:13 +01:00
parent 1c6c4bc361
commit 5af82ee8d3
4 changed files with 46 additions and 7 deletions
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8
gen/abi.cpp
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@@ -133,9 +133,9 @@ struct X86_struct_to_register : ABIRewrite
const LLType* t = LLIntegerType::get(dty->size()*8);
DtoLoad(DtoBitCast(mem, getPtrToType(t)));
}
const LLType* type(Type*, const LLType* t)
const LLType* type(Type* t, const LLType*)
{
size_t sz = getTypePaddedSize(t)*8;
size_t sz = t->size()*8;
return LLIntegerType::get(sz);
}
};
@@ -178,6 +178,7 @@ struct X86TargetABI : TargetABI
// complex {re,im} -> {im,re}
if (rt->iscomplex())
{
Logger::println("Rewriting complex return value");
fty->ret->rewrite = &swapComplex;
}
@@ -186,10 +187,12 @@ struct X86TargetABI : TargetABI
// mark this/nested params inreg
if (fty->arg_this)
{
Logger::println("Putting 'this' in register");
fty->arg_this->attrs = llvm::Attribute::InReg;
}
else if (fty->arg_nest)
{
Logger::println("Putting context ptr in register");
fty->arg_nest->attrs = llvm::Attribute::InReg;
}
// otherwise try to mark the last param inreg
@@ -206,6 +209,7 @@ struct X86TargetABI : TargetABI
if (last->byref && !last->isByVal())
{
Logger::println("Putting last (byref) parameter in register");
last->attrs |= llvm::Attribute::InReg;
}
else if (!lastTy->isfloating() && (sz == 1 || sz == 2 || sz == 4)) // right?