[PATCH] Add vcond_gen_code optab and expand VEC_COND_EXPR

[Devang Patel <dpatel at apple dot com>]

My previous patch introduces VEC_COND_EXPR.

This patch adds expander for it. As we discussed earlier,
it also adds new optab vcond_gen_optab. This patch updates
compare_from_rtx() routine to avoid emitting cmp instructions
for vector compare. New routine expand_vec_cond_expr() is used
to emit vector conditional exprs (VEC_COND_EXPR) using
vcond_gen_code optab.

My next patch will update auto-vectorizer.

Bootstrapped and tested on powerpc-darwin.

2004-09-15  Devang Patel  <dpatel@apple.com>

        * dojump.c (compare_from_rtx): Handle Vector compare.
        * expr.c (store_expr): Handle VEC_COND_EXPR.
        * genopinit.c (optabs): New entry for vcond_gen_code.
        * optabs.c (vcond_gen_code): New optab.
        (get_rtx_code): New function.
        (vector_compare_rtx): New function.
        (init_optabs): Initialize vcond_gen_code.
        (expand_vec_cond_expr_p): New function.
        (expand_vec_cond_expr): New function.
        * optabs.h (expand_vec_cond_expr, expand_vec_cond_expr_p): New 
externs.
        (vcond_gen_code): Same.

OK?
Thanks,
-
Devang

Attachment: ifc2_fsf_mainline.3.0.diff
Description: Binary data