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Re: Unify gcse and cse exp{r,}_equiv_p functions
- From: Paolo Bonzini <bonzini at gnu dot org>
- To: Paolo Bonzini <bonzini at gnu dot org>
- Cc: stevenb at suse dot de, gcc-patches at gcc dot gnu dot org
- Date: Sat, 07 Aug 2004 10:12:39 +0200
- Subject: Re: Unify gcse and cse exp{r,}_equiv_p functions
- References: <41148DC7.2080204@gnu.org>
> In short: put
the switch statement inside a "if (GET_CODE (x) == GET_CODE (y)"
statement, and before it add
result = rtlhooks.exp_equiv_p (x, y, validate, equal_values);
if (result != -1)
return result;
No, actually: replace the two if's before the switch statement with
code = GET_CODE (x);
result = rtlhooks.exp_equiv_p (x, y, validate, equal_values);
if (result != -1)
return result;
if (code != GET_CODE (y))
return 0;
and also add a test for
if (GET_MODE (x) != GET_MODE (y))
return 0;
at the beginning (before the switch) of the GCSE hook and at the end
(before returning -1) of the CSE hook.
Paolo