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[PATCH][PR 87633] Do not generate unordered integer comparisons

From: Yuri Gribov <tetra2005 at gmail dot com>
To: gcc-patches <gcc-patches at gcc dot gnu dot org>
Cc: Aldy Hernandez <aldyh at redhat dot com>, dcb314 at gmail dot com
Date: Sun, 21 Oct 2018 09:45:55 +0100
Subject: [PATCH][PR 87633] Do not generate unordered integer comparisons

Hi all,

My recent patch which replaced
  (float_type)int_var1 CMP (float_type)int_var2
with
  int_var1 CMP int_var2
may generate unordered comparisons of integer values which are both
unnecessary and may also upset later passes.

This patch fixes the problem and bootstraps without regressions on
x86_64-linux-gnu.

Ok to commit?

-Yury

Attachment: pr87633-1.patch
Description: Binary data

Follow-Ups:
- Re: [PATCH][PR 87633] Do not generate unordered integer comparisons
  - From: Richard Biener

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