Port 863c2cb4

Original Commit Message:

    Implement f32x4.pmin, f32x4.pmax, f64x2.pmin, and f64x2.pmax.

    Due to the way minps/maxps/minpd/maxpd works [0], we swap lhs and rhs.
    This is similar to the way TurboFan does this [1].

    [0] "If the values being compared are both 0.0s (of either sign), the
    value in the second operand (source operand) is returned." but pmin/pmax
    wants to return the lhs (which follows the definition of std::min<T> in
    C++ STL.)

    [1]
    https://source.chromium.org/search?q=instruction-selector-ia32.cc%20VisitPmin&ss=chromium%2Fchromium%2Fsrc:v8%2F

R=zhin@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: I3c894d203dffedee579236e3aec681e6206a8e7a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2410474Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Reviewed-by: Joran Siu <joransiu@ca.ibm.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#69895}