PPC: [turbofan] Introduce optional Float64Min and Float64Max machine operators.
Port
99f8d57f3c5d967bc3b10356b22d7ec7be55e89f
Original commit message:
Basically recognize certain x < y ? x : y constructs and turn that into
Float64Min/Float64Max operations, if the target machine supports that.
On x86 we lower to (v)minsd/(v)maxsd.
R=dcarney@chromium.org
Review URL: https://codereview.chromium.org/
998283002
Cr-Commit-Position: refs/heads/master@{#27160}
R=danno@chromium.org, svenpanne@chromium.org
BUG=
Review URL: https://codereview.chromium.org/
1005693002
Cr-Commit-Position: refs/heads/master@{#27174}