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40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
#ifndef LDC_GEN_ABI_GENERIC
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#define LDC_GEN_ABI_GENERIC
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#include "gen/llvmhelpers.h"
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#include "gen/tollvm.h"
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#include "gen/structs.h"
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/// Removes padding fields for (non-union-containing!) structs
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struct RemoveStructPadding : ABIRewrite {
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/// get a rewritten value back to its original form
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virtual LLValue* get(Type* dty, DValue* v) {
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LLValue* lval = DtoAlloca(dty, ".rewritetmp");
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// Make sure the padding is zero, so struct comparisons work.
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// TODO: Only do this if there's padding, and/or only initialize padding.
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DtoMemSetZero(lval, DtoConstSize_t(getTypePaddedSize(DtoType(dty))));
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DtoPaddedStruct(dty->toBasetype(), v->getRVal(), lval);
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return lval;
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}
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/// get a rewritten value back to its original form and store result in provided lvalue
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/// this one is optional and defaults to calling the one above
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virtual void getL(Type* dty, DValue* v, llvm::Value* lval) {
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DtoPaddedStruct(dty->toBasetype(), v->getRVal(), lval);
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}
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/// put out rewritten value
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virtual LLValue* put(Type* dty, DValue* v) {
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return DtoUnpaddedStruct(dty->toBasetype(), v->getRVal());
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}
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/// return the transformed type for this rewrite
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virtual const LLType* type(Type* dty, const LLType* t) {
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return DtoUnpaddedStructType(dty->toBasetype());
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}
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};
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#endif
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