[PATCH] D140818: [NFC][Coroutines] Build DominatorTree only once before collecting frame allocas (PR58650)

[Dawid Jurczak via Phabricator via llvm-commits]

yurai007 added a comment.

Using test.sh from PR got following outputs.

**Before change:**

n: 2000

real	0m3.102s
user	0m3.050s
sys	0m0.047s

n: 4000

real	0m13.323s
user	0m13.275s
sys	0m0.023s

n: 6000

real	0m33.718s
user	0m31.860s
sys	0m1.787s

n: 8000

real	0m57.561s
user	0m57.164s
sys	0m0.266s

n: 10000

real	1m32.799s
user	1m32.526s
sys	0m0.067s

n: 12000

real	2m21.761s
user	2m19.051s
sys	0m2.378s

n: 14000

real	3m31.519s
user	3m28.960s
sys	0m2.005s

n: 16000

real	4m29.952s
user	4m29.121s
sys	0m0.117s

n: 18000

real	6m6.871s
user	6m1.322s
sys	0m4.225s

n: 20000

real	7m10.617s
user	7m9.238s
sys	0m0.186s

---------------------------------------------

**After change:**

n: 2000

real	0m0.318s
user	0m0.301s
sys	0m0.017s

n: 4000

real	0m0.636s
user	0m0.604s
sys	0m0.030s

n: 6000

real	0m0.968s
user	0m0.915s
sys	0m0.050s

n: 8000

real	0m1.315s
user	0m1.269s
sys	0m0.043s

n: 10000

real	0m1.679s
user	0m1.622s
sys	0m0.053s

n: 12000

real	0m2.023s
user	0m1.956s
sys	0m0.063s

n: 14000

real	0m2.529s
user	0m2.458s
sys	0m0.067s

n: 16000

real	0m2.960s
user	0m2.868s
sys	0m0.087s

n: 18000

real	0m3.383s
user	0m3.251s
sys	0m0.127s

n: 20000

real	0m3.800s
user	0m3.612s
sys	0m0.180s


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D140818/new/

https://reviews.llvm.org/D140818