7109

Turns out I've been including some unnecessary files when building apps/mu!

Treeshaken stats before:
  LoC 26258 => 9717
  LoC including common libraries: 29736 => 12719
  binary size: 406K  => 79K

After:
  LoC 26258 => 9717
  LoC including common libraries: 28322 => 12370
  binary size: 406K  => 77K

So our treeshaking isn't perfect. No surprise there..

The treeshaken build also starts to fail without the one-liner change to
mu.subx, which looks like a bug in the treeshaker.

300.txt

@@ -1,6 +1,5 @@
 Layers in the 3xx series use all the available syntax sugar for SubX programs.
-They're used by the Mu translator (apps/mu.subx) and can also be called from
-Mu programs if they meet certain criteria:
+Functions here can be called from Mu programs if they meet certain criteria:
 
   - There's a signature for them in 400.mu
   - Inouts on the stack, outputs in registers

apps/mu.subx

@@ -22565,7 +22565,7 @@ Int-var-in-eax:
     1/imm32/some-block-depth
     0/imm32/no-stack-offset
     0x11/imm32/alloc-id:fake
-    $Register-eax/imm32
+    $Mu-register-eax/imm32  # can't use Register-eax only to keep our buggy tools/treeshake.cc happy (TODO)
 
 Single-int-var-in-ecx:  # (payload list var)
     0x11/imm32/alloc-id:fake:payload

test_apps

@@ -287,7 +287,7 @@ test $NATIVE  &&  {
 }
 
 echo mu
-cat init.$OS [0-9]*.subx apps/mu.subx  |  apps/braces  |  apps/calls  |  apps/sigils  > a.sigils
+cat init.$OS [0-2]*.subx apps/mu.subx  |  apps/braces  |  apps/calls  |  apps/sigils  > a.sigils
 ./bootstrap translate a.sigils -o apps/mu
 test "$1" = 'record'  ||  git diff --exit-code apps/mu
 test $EMULATED  &&  {
@@ -338,7 +338,7 @@ done
 
 # Mu translator
 echo mu
-./translate_subx init.$OS [0-9]*.subx apps/mu.subx
+./translate_subx init.$OS [0-2]*.subx apps/mu.subx
 diff apps/mu a.elf
 
 # Mu programs