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++ and -- compile with correct precidence now.

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git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@164 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
Spoike 2004-09-07 18:25:41 +00:00
parent 7b94ee118d
commit f98b7270f3
1 changed files with 121 additions and 2 deletions
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119
engine/qclib/qcc_pr_comp.c
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@ -3940,14 +3940,133 @@ QCC_def_t *QCC_PR_Expression (int priority)
}
if (!op)
{
if (e == NULL)
QCC_PR_ParseError(ERR_INTERNAL, "e == null");
if (!STRCMP(pr_token, "++"))
{
//if the last statement was an ent.float (or something)
if (((unsigned)(statements[numstatements-1].op - OP_LOAD_F) < 6 || statements[numstatements-1].op == OP_LOAD_I) && statements[numstatements-1].c == e->ofs)
{ //we have our load.
QCC_def_t *e3;
//the only inefficiency here is with an extra temp (we can't reuse the origional)
//this is not a problem, as the optimise temps or locals marshalling can clean these up for us
qcc_usefulstatement=true;
//load
//add to temp
//store temp to offset
//return origional loaded (which is not at the same offset as the pointer we store to)
e2 = QCC_GetTemp(type_float);
e3 = QCC_GetTemp(type_pointer);
QCC_PR_SimpleStatement(OP_ADDRESS, statements[numstatements-1].a, statements[numstatements-1].b, e3->ofs);
if (e->type->type == ev_float)
{
QCC_PR_Statement3(&pr_opcodes[OP_ADD_F], e, QCC_MakeFloatDef(1), e2);
QCC_PR_Statement3(&pr_opcodes[OP_STOREP_F], e2, e3, NULL);
}
else if (e->type->type == ev_integer)
{
QCC_PR_Statement3(&pr_opcodes[OP_ADD_I], e, QCC_MakeIntDef(1), e2);
QCC_PR_Statement3(&pr_opcodes[OP_STOREP_I], e2, e3, NULL);
}
else
{
QCC_PR_ParseError(ERR_PARSEERRORS, "-- suffix operator results in nonstandard behaviour. Use -=1 or prefix form instead");
QCC_PR_IncludeChunk("-=1", false, NULL);
}
QCC_FreeTemp(e2);
QCC_FreeTemp(e3);
}
else if (e->type->type == ev_float)
{
//copy to temp
//add to origional
//return temp (which == origional)
QCC_PR_ParseWarning(WARN_INEFFICIENTPLUSPLUS, "++ suffix operator results in inefficient behaviour. Use +=1 or prefix form instead");
qcc_usefulstatement=true;
e2 = QCC_GetTemp(type_float);
QCC_PR_Statement3(&pr_opcodes[OP_STORE_F], e, e2, NULL);
QCC_PR_Statement3(&pr_opcodes[OP_ADD_F], e, QCC_MakeFloatDef(1), e);
QCC_FreeTemp(e);
e = e2;
}
else if (e->type->type == ev_integer)
{
QCC_PR_ParseWarning(WARN_INEFFICIENTPLUSPLUS, "++ suffix operator results in inefficient behaviour. Use +=1 or prefix form instead");
qcc_usefulstatement=true;
e2 = QCC_GetTemp(type_integer);
QCC_PR_Statement3(&pr_opcodes[OP_STORE_I], e, e2, NULL);
QCC_PR_Statement3(&pr_opcodes[OP_ADD_I], e, QCC_MakeIntDef(1), e);
QCC_FreeTemp(e);
e = e2;
}
else
{
QCC_PR_ParseWarning(WARN_NOTSTANDARDBEHAVIOUR, "++ suffix operator results in nonstandard behaviour. Use +=1 or prefix form instead");
QCC_PR_IncludeChunk("+=1", false, NULL);
}
QCC_PR_Lex();
}
else if (!STRCMP(pr_token, "--"))
{
if (((unsigned)(statements[numstatements-1].op - OP_LOAD_F) < 6 || statements[numstatements-1].op == OP_LOAD_I) && statements[numstatements-1].c == e->ofs)
{ //we have our load.
QCC_def_t *e3;
//load
//add to temp
//store temp to offset
//return origional loaded (which is not at the same offset as the pointer we store to)
e2 = QCC_GetTemp(type_float);
e3 = QCC_GetTemp(type_pointer);
QCC_PR_SimpleStatement(OP_ADDRESS, statements[numstatements-1].a, statements[numstatements-1].b, e3->ofs);
if (e->type->type == ev_float)
{
QCC_PR_Statement3(&pr_opcodes[OP_SUB_F], e, QCC_MakeFloatDef(1), e2);
QCC_PR_Statement3(&pr_opcodes[OP_STOREP_F], e2, e3, NULL);
}
else if (e->type->type == ev_integer)
{
QCC_PR_Statement3(&pr_opcodes[OP_SUB_I], e, QCC_MakeIntDef(1), e2);
QCC_PR_Statement3(&pr_opcodes[OP_STOREP_I], e2, e3, NULL);
}
else
{
QCC_PR_ParseError(ERR_PARSEERRORS, "-- suffix operator results in nonstandard behaviour. Use -=1 or prefix form instead");
QCC_PR_IncludeChunk("-=1", false, NULL);
}
QCC_FreeTemp(e2);
QCC_FreeTemp(e3);
}
else if (e->type->type == ev_float)
{
QCC_PR_ParseWarning(WARN_INEFFICIENTPLUSPLUS, "-- suffix operator results in inefficient behaviour. Use -=1 or prefix form instead");
qcc_usefulstatement=true;
e2 = QCC_GetTemp(type_float);
QCC_PR_Statement3(&pr_opcodes[OP_STORE_F], e, e2, NULL);
QCC_PR_Statement3(&pr_opcodes[OP_SUB_F], e, QCC_MakeFloatDef(1), e);
QCC_FreeTemp(e);
e = e2;
}
else if (e->type->type == ev_integer)
{
QCC_PR_ParseWarning(WARN_INEFFICIENTPLUSPLUS, "-- suffix operator results in inefficient behaviour. Use -=1 or prefix form instead");
qcc_usefulstatement=true;
e2 = QCC_GetTemp(type_integer);
QCC_PR_Statement3(&pr_opcodes[OP_STORE_I], e, e2, NULL);
QCC_PR_Statement3(&pr_opcodes[OP_SUB_I], e, QCC_MakeIntDef(1), e);
QCC_FreeTemp(e);
e = e2;
}
else
{
QCC_PR_ParseWarning(WARN_NOTSTANDARDBEHAVIOUR, "-- suffix operator results in nonstandard behaviour. Use -=1 or prefix form instead");
QCC_PR_IncludeChunk("-=1", false, NULL);
}
QCC_PR_Lex();
}
break; // next token isn't at this priority level