pan/midgard: Copypropagate vector creation

pan/midgard: Copypropagate vector creation

total instructions in shared programs: 3457 -> 3431 (-0.75%)
instructions in affected programs: 787 -> 761 (-3.30%)
helped: 14
HURT: 0
helped stats (abs) min: 1 max: 12 x̄: 1.86 x̃: 1
helped stats (rel) min: 1.01% max: 11.11% x̄: 9.22% x̃: 11.11%
95% mean confidence interval for instructions value: -3.55 -0.16
95% mean confidence interval for instructions %-change: -11.41% -7.03%
Instructions are helped.

total bundles in shared programs: 1830 -> 1826 (-0.22%)
bundles in affected programs: 279 -> 275 (-1.43%)
helped: 2
HURT: 0

total quadwords in shared programs: 3144 -> 3121 (-0.73%)
quadwords in affected programs: 645 -> 622 (-3.57%)
helped: 13
HURT: 0
helped stats (abs) min: 1 max: 11 x̄: 1.77 x̃: 1
helped stats (rel) min: 2.09% max: 16.67% x̄: 12.61% x̃: 14.29%
95% mean confidence interval for quadwords value: -3.45 -0.09
95% mean confidence interval for quadwords %-change: -15.43% -9.79%
Quadwords are helped.

total registers in shared programs: 303 -> 301 (-0.66%)
registers in affected programs: 14 -> 12 (-14.29%)
helped: 2
HURT: 0

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>