intel/fs: Combine constants for integer instructions too

intel/fs: Combine constants for integer instructions too

v2: Remove type change for SHR with negation.  This was a leftover from
a previous attempt to deal with SHR and negation.  Now all right-shifts
with unsigned parameters are marked as not being able to have source
modifiers.

v3: Disallow negations on right shifts of unsigned sources by setting
the no_negations flag in add_candidate_immediate.  This eliminates the
need to exclude SHR in can_do_source_mods.

Tiger Lake
total instructions in shared programs: 21102817 -> 21099443 (-0.02%)
instructions in affected programs: 296796 -> 293422 (-1.14%)
helped: 92 / HURT: 356

total cycles in shared programs: 790564691 -> 790393358 (-0.02%)
cycles in affected programs: 36456886 -> 36285553 (-0.47%)
helped: 171 / HURT: 286

total spills in shared programs: 3951 -> 3959 (0.20%)
spills in affected programs: 176 -> 184 (4.55%)
helped: 0 / HURT: 2

total fills in shared programs: 2631 -> 2639 (0.30%)
fills in affected programs: 176 -> 184 (4.55%)
helped: 0 / HURT: 2

LOST:   0
GAINED: 4

Ice Lake
total instructions in shared programs: 19954204 -> 19949122 (-0.03%)
instructions in affected programs: 40301 -> 35219 (-12.61%)
helped: 23 / HURT: 2

total cycles in shared programs: 858377735 -> 858462082 (<.01%)
cycles in affected programs: 75537286 -> 75621633 (0.11%)
helped: 124 / HURT: 319

total spills in shared programs: 6255 -> 6190 (-1.04%)
spills in affected programs: 392 -> 327 (-16.58%)
helped: 1 / HURT: 2

total fills in shared programs: 7813 -> 7382 (-5.52%)
fills in affected programs: 942 -> 511 (-45.75%)
helped: 1 / HURT: 2

LOST:   0
GAINED: 3

Skylake
total instructions in shared programs: 18049362 -> 18044440 (-0.03%)
instructions in affected programs: 48317 -> 43395 (-10.19%)
helped: 26 / HURT: 2

total cycles in shared programs: 844884806 -> 844915655 (<.01%)
cycles in affected programs: 76137133 -> 76167982 (0.04%)
helped: 171 / HURT: 293

total spills in shared programs: 6148 -> 6149 (0.02%)
spills in affected programs: 595 -> 596 (0.17%)
helped: 4 / HURT: 2

total fills in shared programs: 7484 -> 7067 (-5.57%)
fills in affected programs: 1226 -> 809 (-34.01%)
helped: 4 / HURT: 2

LOST:   0
GAINED: 8

Broadwell
total instructions in shared programs: 17826844 -> 17821805 (-0.03%)
instructions in affected programs: 60687 -> 55648 (-8.30%)
helped: 28 / HURT: 8

total cycles in shared programs: 905332682 -> 904369499 (-0.11%)
cycles in affected programs: 76743509 -> 75780326 (-1.26%)
helped: 179 / HURT: 225

total spills in shared programs: 17922 -> 17908 (-0.08%)
spills in affected programs: 2495 -> 2481 (-0.56%)
helped: 6 / HURT: 8

total fills in shared programs: 26290 -> 25397 (-3.40%)
fills in affected programs: 2606 -> 1713 (-34.27%)
helped: 8 / HURT: 6

LOST:   1
GAINED: 1

Haswell
total instructions in shared programs: 16678878 -> 16674444 (-0.03%)
instructions in affected programs: 78458 -> 74024 (-5.65%)
helped: 87 / HURT: 6

total cycles in shared programs: 880189381 -> 880301043 (0.01%)
cycles in affected programs: 29956463 -> 30068125 (0.37%)
helped: 169 / HURT: 163

total spills in shared programs: 14428 -> 14378 (-0.35%)
spills in affected programs: 2384 -> 2334 (-2.10%)
helped: 8 / HURT: 6

total fills in shared programs: 16975 -> 16881 (-0.55%)
fills in affected programs: 1334 -> 1240 (-7.05%)
helped: 10 / HURT: 4

Ivy Bridge
total instructions in shared programs: 15706048 -> 15706035 (<.01%)
instructions in affected programs: 9941 -> 9928 (-0.13%)
helped: 13 / HURT: 0

total cycles in shared programs: 433618834 -> 433624637 (<.01%)
cycles in affected programs: 12926714 -> 12932517 (0.04%)
helped: 52 / HURT: 41

Sandy Bridge
total cycles in shared programs: 741223552 -> 741223443 (<.01%)
cycles in affected programs: 19814 -> 19705 (-0.55%)
helped: 14 / HURT: 0

No changes on Iron Lake or GM45

fossil-db changes:

Tiger Lake
Instructions in all programs: 156858030 -> 156905532 (+0.0%)
Instructions helped: 3915
Instructions hurt: 15411

Cycles in all programs: 7529667771 -> 7532117340 (+0.0%)
Cycles helped: 10260
Cycles hurt: 9990

Spills in all programs: 5610 -> 5457 (-2.7%)
Spills helped: 18

Fills in all programs: 6274 -> 6091 (-2.9%)
Fills helped: 18

Gained: 2
Lost: 16

Ice Lake
Instructions in all programs: 141308082 -> 141303083 (-0.0%)
Instructions helped: 574
Instructions hurt: 172

Cycles in all programs: 9091361325 -> 9094622766 (+0.0%)
Cycles helped: 8764
Cycles hurt: 11702

Spills in all programs: 7531 -> 7385 (-1.9%)
Spills helped: 19

Fills in all programs: 8462 -> 8294 (-2.0%)
Fills helped: 19

Gained: 22
Lost: 15

Skylake
Instructions in all programs: 131872162 -> 131867263 (-0.0%)
Instructions helped: 566
Instructions hurt: 172

Cycles in all programs: 8795095440 -> 8799676943 (+0.1%)
Cycles helped: 8333
Cycles hurt: 12182

Spills in all programs: 7006 -> 6884 (-1.7%)
Spills helped: 13

Fills in all programs: 7696 -> 7552 (-1.9%)
Fills helped: 13

Gained: 24
Lost: 1

Tested-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7698>