alt opt pipeline

EnzymeAD · Apr 6, 2024 · 344fd1f · 344fd1f
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commit 344fd1f
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diff --git a/src/Debugging.md b/src/Debugging.md
@@ -54,10 +54,13 @@ export ENZYME_ENABLE_FNC_OPT=1
 export ENZYME_NO_VEC_UNROLL=1
 export ENZYME_NO_SAFETY_CHECKS=1
 export ENZYME_INLINE=1
+export ENZYME_ALT_PIPELINE=1
 ```
 The normal compilation pipeline of Rust-Enzyme is
 1) Run your selected compilation pipeline. If you selected a release build, we will disable vectorization and loop unrolling.
 2) Differentiate your functions.
 3) Run your selected compilation pipeline again on the whole module. This time we do not disable vectorization or loop unrolling.
 
+The alt pipeline will not run opts before AD, but 2x after AD - the first time without vectorization or loop unrolling, the second time with.
+
 The two flags above allow you to adjust this default behaviour.