Third attempt to merge #191

[SamirDroubi]

All changes to src/exo/LoopIR_scheduling.py except for new primitives.
All changes to tests/test_schedules.py.
All changes to src/exo/LoopIR_unification.py

[codecov-commenter]

Codecov Report

Merging #307 (2b897bd) into master (86f2a15) will decrease coverage by 0.09%.
The diff coverage is 82.46%.

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@@            Coverage Diff             @@
##           master     #307      +/-   ##
==========================================
- Coverage   86.25%   86.17%   -0.09%     
==========================================
  Files          73       73              
  Lines       16537    16677     +140     
==========================================
+ Hits        14264    14371     +107     
- Misses       2273     2306      +33     

Impacted Files	Coverage Δ
tests/amx/test_amx_instr.py	63.47% <64.44%> (-36.53%)	⬇️
src/exo/LoopIR_scheduling.py	90.01% <81.76%> (-0.88%)	⬇️
src/exo/API_scheduling.py	86.36% <100.00%> (-0.42%)	⬇️
src/exo/LoopIR_unification.py	81.33% <100.00%> (+0.05%)	⬆️
tests/test_schedules.py	98.99% <100.00%> (+0.09%)	⬆️
tests/conftest.py	82.27% <0.00%> (-3.80%)	⬇️
tests/test_x86.py	98.33% <0.00%> (-1.67%)	⬇️
src/exo/LoopIR_compiler.py	94.38% <0.00%> (-0.55%)	⬇️
... and 3 more

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[yamaguchi1024]

LGTM if tests will pass

[yamaguchi1024]

pytest took 514.14s on this branch and 512.94s on master, so it seems the checks are good