build

WIP: Match in match heuristic #23232

Job	Run time
runtime5 stack-checks (x86_64-linux)	7m 28s
runtime5 debug (x86_64-linux)	9m 47s
runtime5 dev (x86_64-linux)	6m 23s
runtime5 poll-insertion (x86_64-linux)	7m 52s
runtime5 multidomain (x86_64-linux)	9m 14s
runtime5 regalloc (aarch64-darwin)	10m 30s
runtime4 Oclassic frame-pointers poll-insertion flambda-invariants (x86_64-linux)	8m 11s
runtime4 O3 metrics (x86_64-linux)	8m 9s
runtime4 dev (x86_64-linux)	7m 7s
runtime4 (aarch64-darwin)	7m 34s
runtime4 O3 (x86_64-linux)	7m 38s
runtime5 (x86_64-linux)	7m 16s
runtime4 regalloc (x86_64-linux)	9m 53s
runtime5 debug stack-checks (x86_64-linux)	9m 29s
runtime5 dwarf-tests (x86_64-linux)	5m 9s
runtime5 regalloc (aarch64-linux)	10m 55s
runtime5 frame-pointers irc (x86_64-linux)	8m 0s
runtime5 frame-pointers llvmize-tests (x86_64-linux)	5m 41s
runtime4 address-sanitizer (x86_64-linux)	10m 19s
runtime5 address-sanitizer (x86_64-linux)	11m 0s
runtime5 vectorizer (x86_64-linux)	7m 22s
runtime5 debug regalloc (aarch64-darwin)	12m 6s
runtime5 cfg-invariants (x86_64-linux)	8m 18s
	3h 15m 21s

Provide feedback