cmd/compile: update default PGO profile

cmd/compile: update default PGO profile

Since last time the default.pgo profile is collected, there has
been a lot of development in the compiler. It's time to refresh
the compiler's PGO profile.

Profile collected by running the cmd/compile/profile.sh script on
the gotip-linux-arm64_c4ah72-perf_vs_release gomote.

Benchmark results on Linux/AMD64:

         │   nopgo.txt   │              old.txt               │              new.txt               │
         │    sec/op     │   sec/op     vs base               │   sec/op     vs base               │
Template     112.0m ± 1%   109.7m ± 1%  -2.10% (p=0.000 n=20)   110.3m ± 1%  -1.55% (p=0.001 n=20)
Unicode      99.39m ± 0%   94.94m ± 0%  -4.49% (p=0.000 n=20)   94.33m ± 1%  -5.10% (p=0.000 n=20)
GoTypes      544.9m ± 0%   535.0m ± 1%  -1.80% (p=0.000 n=20)   535.1m ± 0%  -1.78% (p=0.000 n=20)
Compiler     96.23m ± 1%   90.86m ± 1%  -5.58% (p=0.000 n=20)   90.84m ± 1%  -5.60% (p=0.000 n=20)
SSA           3.403 ± 1%    3.273 ± 0%  -3.81% (p=0.000 n=20)    3.247 ± 0%  -4.57% (p=0.000 n=20)
Flate        71.55m ± 0%   70.09m ± 1%  -2.04% (p=0.000 n=20)   70.03m ± 1%  -2.13% (p=0.000 n=20)
GoParser     131.5m ± 1%   129.9m ± 1%  -1.19% (p=0.000 n=20)   129.4m ± 0%  -1.56% (p=0.000 n=20)
Reflect      275.5m ± 1%   268.6m ± 1%  -2.50% (p=0.000 n=20)   268.1m ± 1%  -2.70% (p=0.000 n=20)
Tar          131.6m ± 1%   128.4m ± 1%  -2.37% (p=0.000 n=20)   128.8m ± 1%  -2.07% (p=0.000 n=20)
XML          153.7m ± 1%   150.3m ± 1%  -2.26% (p=0.000 n=20)   149.7m ± 1%  -2.66% (p=0.000 n=20)
geomean      200.3m        194.7m       -2.82%                  194.4m       -2.98%

On Linux/ARM64:

         │   nopgo.txt   │              old.txt               │              new.txt               │
         │    sec/op     │   sec/op     vs base               │   sec/op     vs base               │
Template     82.38m ± 1%   80.52m ± 0%  -2.26% (p=0.000 n=20)   80.07m ± 1%  -2.81% (p=0.000 n=20)
Unicode      76.28m ± 0%   72.72m ± 0%  -4.66% (p=0.000 n=20)   72.40m ± 1%  -5.09% (p=0.000 n=20)
GoTypes      420.7m ± 0%   412.5m ± 0%  -1.95% (p=0.000 n=20)   408.1m ± 1%  -3.00% (p=0.000 n=20)
Compiler     69.85m ± 1%   67.40m ± 1%  -3.50% (p=0.000 n=20)   66.73m ± 1%  -4.47% (p=0.000 n=20)
SSA           2.846 ± 0%    2.733 ± 0%  -3.96% (p=0.000 n=20)    2.707 ± 0%  -4.90% (p=0.000 n=20)
Flate        49.14m ± 1%   47.87m ± 0%  -2.58% (p=0.000 n=20)   47.53m ± 1%  -3.26% (p=0.000 n=20)
GoParser     97.44m ± 1%   94.96m ± 1%  -2.55% (p=0.000 n=20)   94.75m ± 1%  -2.76% (p=0.000 n=20)
Reflect      210.5m ± 0%   205.2m ± 0%  -2.50% (p=0.000 n=20)   202.5m ± 0%  -3.78% (p=0.000 n=20)
Tar          97.75m ± 1%   95.72m ± 1%  -2.07% (p=0.000 n=20)   94.68m ± 1%  -3.13% (p=0.000 n=20)
XML          112.6m ± 0%   110.0m ± 0%  -2.33% (p=0.000 n=20)   108.7m ± 1%  -3.49% (p=0.000 n=20)
geomean      150.2m        145.9m       -2.84%                  144.6m       -3.67%

For #60234.

Change-Id: Ie1abc019339252cd9441a1fb1eab33a29c1dc11c
Reviewed-on: https://go-review.googlesource.com/c/go/+/634037
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: David Chase <drchase@google.com>