tree f754476b85bea731927a340a97fefdab5e54d45f
parent 36594b69b94326014c331fe50a5a345ef4f8de16
author Ian Lance Taylor <iant@golang.org> 1517808411 -0800
committer Ian Lance Taylor <iant@golang.org> 1517844494 +0000

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

Change-Id: Iaf8221d40b8afb4318848990800d2ca2e43f0f8b
Reviewed-on: https://go-review.googlesource.com/91915
Reviewed-by: Than McIntosh <thanm@google.com>