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More strcmp inlining.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@4638 b7a2c559-68d2-44c3-8de9-860c34a00d81
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uz 2010-03-23 21:47:12 +00:00
parent 8e26fef105
commit ca9170cd20
1 changed files with 44 additions and 1 deletions
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45
src/cc65/stdfunc.c
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@ -787,7 +787,7 @@ static void StdFunc_strcmp (FuncDesc* F attribute ((unused)), ExprDesc* Expr)
g_getind (CF_CHAR | CF_UNSIGNED, 0);
}
} else if ((IS_Get (&CodeSizeFactor) > 160) &&
} else if ((IS_Get (&CodeSizeFactor) >= 165) &&
((ED_IsRVal (&Arg2.Expr) && ED_IsLocConst (&Arg2.Expr)) ||
(ED_IsLVal (&Arg2.Expr) && ED_IsLocRegister (&Arg2.Expr))) &&
((ED_IsRVal (&Arg1.Expr) && ED_IsLocConst (&Arg1.Expr)) ||
@ -834,6 +834,49 @@ static void StdFunc_strcmp (FuncDesc* F attribute ((unused)), ExprDesc* Expr)
AddCodeLine ("ldx #$FF");
g_defcodelabel (Fin);
} else if ((IS_Get (&CodeSizeFactor) > 190) &&
((ED_IsRVal (&Arg2.Expr) && ED_IsLocConst (&Arg2.Expr)) ||
(ED_IsLVal (&Arg2.Expr) && ED_IsLocRegister (&Arg2.Expr))) &&
(IS_Get (&InlineStdFuncs) || (ECount1 > 0 && ECount1 < 256))) {
unsigned Entry, Loop, Fin; /* Labels */
const char* Compare;
if (ED_IsLVal (&Arg2.Expr) && ED_IsLocRegister (&Arg2.Expr)) {
Compare = "cmp (%s),y";
} else {
Compare = "cmp %s,y";
}
/* Drop the generated code */
RemoveCode (&Arg1.Push);
/* We need labels */
Entry = GetLocalLabel ();
Loop = GetLocalLabel ();
Fin = GetLocalLabel ();
/* Store Arg1 into ptr1 */
AddCodeLine ("sta ptr1");
AddCodeLine ("stx ptr1+1");
/* Generate strcmp code */
AddCodeLine ("ldy #$00");
AddCodeLine ("beq %s", LocalLabelName (Entry));
g_defcodelabel (Loop);
AddCodeLine ("tax");
AddCodeLine ("beq %s", LocalLabelName (Fin));
AddCodeLine ("iny");
g_defcodelabel (Entry);
AddCodeLine ("lda (ptr1),y");
AddCodeLine (Compare, ED_GetLabelName (&Arg2.Expr, 0));
AddCodeLine ("beq %s", LocalLabelName (Loop));
AddCodeLine ("ldx #$01");
AddCodeLine ("bcs %s", LocalLabelName (Fin));
AddCodeLine ("ldx #$FF");
g_defcodelabel (Fin);
}
/* The function result is an rvalue in the primary register */