hg: jdk8u/jdk8u-dev/hotspot: 8073670: TypeF::eq and TypeD::eq do not handle NaNs correctly

[david.buck at oracle.com]

Changeset: fbb8f75498f4
Author:    dbuck
Date:      2017-08-11 03:30 -0400
URL:       http://hg.openjdk.java.net/jdk8u/jdk8u-dev/hotspot/rev/fbb8f75498f4

8073670: TypeF::eq and TypeD::eq do not handle NaNs correctly
Summary: Change TypeF:eq and TypeD:eq to compare NaN values using a bitwise comparison.
Reviewed-by: kvn
Contributed-by: Stefan Anzinger <stefan.anzinger at oracle.com>

! src/share/vm/opto/type.cpp
+ test/compiler/c2/FloatingPointFoldingTest.java