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[PATCHv2][PR 81376] Remove unnecessary float casts in comparisons

From: Yuri Gribov <tetra2005 at gmail dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Cc: Marc Glisse <marc dot glisse at inria dot fr>, Joseph Myers <joseph at codesourcery dot com>, Richard Biener <richard dot guenther at gmail dot com>
Date: Sun, 18 Feb 2018 18:52:57 +0000
Subject: [PATCHv2][PR 81376] Remove unnecessary float casts in comparisons
Authentication-results: sourceware.org; auth=none

Hi all,

This is a second iteration of patch which gets rid of float casts in
comparisons when all values of casted integral type are exactly
representable by the float type
(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81376). The new version
addresses Richard's review
(https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00481.html).

Bootstrapped and regtested on x64_64. Ok to commit?

-Y

Attachment: pr81376-2.patch
Description: Binary data

Follow-Ups:
- Re: [PATCHv2][PR 81376] Remove unnecessary float casts in comparisons
  - From: Jeff Law
- Re: [PATCHv2][PR 81376] Remove unnecessary float casts in comparisons
  - From: Richard Sandiford

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