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annotate ir/ir.cpp @ 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> |
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date | Sun, 14 Jun 2009 19:49:58 +0200 |
parents | 2a687353c84d |
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rev | line source |
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1 #include "llvm/Target/TargetData.h" |
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2 |
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3 #include "gen/irstate.h" |
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4 #include "gen/tollvm.h" |
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5 #include "gen/functions.h" |
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6 |
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7 #include "ir/ir.h" |
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8 #include "ir/irfunction.h" |
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9 |
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10 |
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11 unsigned GetTypeAlignment(Ir* ir, Type* t) |
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12 { |
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13 return gTargetData->getABITypeAlignment(DtoType(t)); |
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14 } |
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15 |
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16 Ir::Ir() |
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17 : irs(NULL) |
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18 { |
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19 } |
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20 |
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21 void Ir::addFunctionBody(IrFunction * f) |
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22 { |
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23 functionbodies.push_back(f); |
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24 } |
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25 |
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26 void Ir::emitFunctionBodies() |
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27 { |
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28 while (!functionbodies.empty()) |
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29 { |
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30 IrFunction* irf = functionbodies.front(); |
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31 functionbodies.pop_front(); |
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32 DtoDefineFunction(irf->decl); |
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33 } |
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34 } |