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[patch] followup fix to PR18425

From: Dorit Naishlos <DORIT at il dot ibm dot com>
To: gcc-patches at gcc dot gnu dot org
Date: Thu, 11 Nov 2004 16:07:24 +0200
Subject: [patch] followup fix to PR18425




Following http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00876.html:
When adding a stmt returned by force_gimple_operand - check first that it
is not NULL.
There are overall 3 such occurrences in the vectorizer (including the one
that causes PR18425).

Bootstrapped and tested on ppc-darwin.

ok for mainline?

Changelog:

      * tree-vectorize.c (vect_build_loop_niters): Do not insert
      NULL into the instruction stream. Initialize new_bb to NULL.
      (vect_update_ivs_after_vectorizer): Likewise.
      (vect_gen_niters_for_prolog_loop): Likewise.

Patch:

(See attached file: pr18425.fix)

Attachment: pr18425.fix
Description: Binary data

Follow-Ups:
- Re: [patch] followup fix to PR18425
  - From: Richard Henderson

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