tree cecc275b17e4057a564317d90e582c5cb25da87f
parent 7eebd495df915ab87926b8dd88f554674cfdacea
author Ian Lance Taylor <iant@golang.org> 1517858621 -0800
committer Ian Lance Taylor <iant@golang.org> 1517858710 +0000

compiler: rollback "avoid negative zero in float constants"

It uses functions that are not available in MPFR 2.4.2, which is the
current version supported by GCC.

Original change description:

    compiler: avoid negative zero in float constants

    Check for negative numbers with very small magnitudes that will round
    to negative zero, and force them to positive zero instead.

    This implements the spec clarification in https://golang.org/cl/14727.
    The test is in https://golang.org/cl/91895.

    Fixes golang/go#12621

Updates golang/go#12621

Change-Id: Ibe89ba756c044bef7796934dbb01550db041dced
Reviewed-on: https://go-review.googlesource.com/92055
Reviewed-by: Ian Lance Taylor <iant@golang.org>