translate_emulated has gotten _much_ slower

I spent some time timing this command:
  cd ./linux/bootstrap;  ./clean;  popd;  time ./translate_emulated apps/ex2.mu

Times at a few commits this year, along with notes on what changed in the
linux/ directory:
  517a01c95a62a8d6227357d514dc9fff83388153 Feb 17 1:30
    time ./translate_mu_baremetal_emulated baremetal/ex2.mu
  71e4f3812982dba2efb471283d310224e8db363e Mar 3 1:30
    time ./translate_emulated ex2.mu
  2df1d1a73046a0a7b6523552b53f407651ed36df May 14 1:53
    time ./translate_emulated apps/ex2.mu
  ff8ec9bcff7577ba923fe7868ea62ecceed55ee7 + patch May 14 2:10 -- start showing stack trace on abort
  9831a8cef9cb8f412590ffa6ab9f52b8b51ab9d2 + patch May 19 2:23
  8c47da082b63b6aa6aafd45e1f8f7edd4459e555 Jun 18 2:27
                                                               -- what changed in the middle here?!
  b625c6304eca827c04eda719fa6f7927294b80bc Jul 29 3:13
                                                               -- seemingly minor change to linux/next-word
  52e3ea8a4bec791e4c2d64fb8aca9e26cdf60f25 Aug 15 4:55

  ba4a3c5be70d473479e663be0400b798f88c113d Aug 22 4:57
                                                               -- one additional compiler check in linux/mu.subx
  899cdcc3f3da2be04801ab79b53ec2264e8b1e4c Aug 29 5:44 5:54
  975f372d67a5242d3c046712d43ec9f61a920009 Oct 31 5:22

So it's not a single commit :/ Unclear what's going on.

1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index 6cc7efe9..4ca9d10e 100644
--- a/README.md
+++ b/README.md
@@ -98,7 +98,7 @@ Mu programs build natively either on Linux or on Windows using [WSL 2](https://d
 For Macs and other Unix-like systems, use the (much slower) emulator:
 
 ```sh
-./translate_emulated apps/ex2.mu  # ~2 mins to emit code.img
+./translate_emulated apps/ex2.mu  # 2-5 minutes to emit code.img
 ```
 
 Mu programs can be written for two very different environments: