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Make sure that a l-value of a binassign expressions is only evaluated once.

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This commit is contained in:
Alexey Prokhin
2011-01-02 17:38:40 +03:00
parent 67880f01e9
commit 4b34601a79
1 changed files with 3 additions and 4 deletions
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7
gen/toir.cpp
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@@ -85,7 +85,6 @@ DValue* VarExp::toElem(IRState* p)
if (cachedLvalue)
{
LLValue* V = cachedLvalue;
cachedLvalue = NULL;
return new DVarValue(type, V);
}
@@ -604,6 +603,9 @@ DValue* X##AssignExp::toElem(IRState* p) \
e3.type = e1->type; \
DValue* dst = findLvalue(p, e1)->toElem(p); \
DValue* res = e3.toElem(p); \
while(e1->op == TOKcast) \
e1 = ((CastExp*)e1)->e1; \
e1->cachedLvalue = NULL; \
DValue* stval = DtoCast(loc, res, dst->getType()); \
DtoAssign(loc, dst, stval); \
return DtoCast(loc, res, type); \
@@ -1074,7 +1076,6 @@ DValue* PtrExp::toElem(IRState* p)
if (cachedLvalue)
{
V = cachedLvalue;
cachedLvalue = NULL;
}
else
{
@@ -1101,7 +1102,6 @@ DValue* DotVarExp::toElem(IRState* p)
{
Logger::println("using cached lvalue");
LLValue *V = cachedLvalue;
cachedLvalue = NULL;
VarDeclaration* vd = var->isVarDeclaration();
assert(vd);
return new DVarValue(type, vd, V);
@@ -1240,7 +1240,6 @@ DValue* IndexExp::toElem(IRState* p)
if (cachedLvalue)
{
LLValue* V = cachedLvalue;
cachedLvalue = NULL;
return new DVarValue(type, V);
}