* viz: variable length rdna barriers
* work
* tiny changes
* simple wave simd test
* small wave sync test
* good multi barrier bug find
* simple fix
* wave_sync asserts
* rdna4 work
* more rdna4
* find more bugs in my model
* it's so much simpler
* wave_sync tests duration
* r4
* should just call this rdna4
* Revert "hotfix: skip test/amd in macpytest"
This reverts commit b7dade2adf.
* no llvm subprocess
* simpler
* sys.exec
* cleanup
* process safe
* diag
* arm ftz support
* 5 sec
* this one