Re: [PATCH] Move __builtin_strstr folding from builtins.c to fold-const-call.c + gimple-fold.c; plus a constexpr testcase for strstr

Wed, 07 Dec 2016 11:43:53 -0800 

On 12/07/2016 10:30 AM, Jakub Jelinek wrote:

Hi!

As discussed on IRC, this patch adds a constexpr handling testcase for
the strstr builtin and moves it over to the desired files (gimple-fold.c
and fold-const-call.c).

Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?

2016-12-07  Jakub Jelinek  <ja...@redhat.com>

        * builtins.c (fold_builtin_strstr): Removed.
        (fold_builtin_2): Don't call fold_builtin_strstr.
        * gimple-fold.c (gimple_fold_builtin_strchr): Check is_strrchr
        earlier in the strrchr (x, 0) -> strchr (x, 0) optimization.
        (gimple_fold_builtin_strstr): New function.
        (gimple_fold_builtin): Call it.
        * fold-const-call.c (fold_const_call): Handle CFN_BUILT_IN_STRSTR.

OK.
jeff

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