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Commit 48fa9ed4 by Jim Stichnoth
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Subzero: Design doc: Include regalloc in Om1 pass list.

The Om1 recipe also includes register allocation (minimal mode). BUG= none R=kschimpf@google.com Review URL: https://codereview.chromium.org/2069953004 .
parent deb5a825
Showing with 31 additions and 31 deletions
docs/DESIGN.rst
......@@ -49,37 +49,37 @@ selection of fast optimization passes. It has two optimization recipes: full
optimizations (``O2``) and minimal optimizations (``Om1``). The recipes are the
following (described in more detail below):
+-----------------------------------+-----------------------+
| O2 recipe | Om1 recipe |
+===================================+=======================+
| Parse .pexe file | Parse .pexe file |
+-----------------------------------+-----------------------+
| Loop nest analysis | |
+-----------------------------------+-----------------------+
| Address mode inference | |
+-----------------------------------+-----------------------+
| Read-modify-write (RMW) transform | |
+-----------------------------------+-----------------------+
| Basic liveness analysis | |
+-----------------------------------+-----------------------+
| Load optimization | |
+-----------------------------------+-----------------------+
| | Phi lowering (simple) |
+-----------------------------------+-----------------------+
| Target lowering | Target lowering |
+-----------------------------------+-----------------------+
| Full liveness analysis | |
+-----------------------------------+-----------------------+
| Register allocation | |
+-----------------------------------+-----------------------+
| Phi lowering (advanced) | |
+-----------------------------------+-----------------------+
| Post-phi register allocation | |
+-----------------------------------+-----------------------+
| Branch optimization | |
+-----------------------------------+-----------------------+
| Code emission | Code emission |
+-----------------------------------+-----------------------+
+-----------------------------------+-----------------------------+
| O2 recipe | Om1 recipe |
+===================================+=============================+
| Parse .pexe file | Parse .pexe file |
+-----------------------------------+-----------------------------+
| Loop nest analysis | |
+-----------------------------------+-----------------------------+
| Address mode inference | |
+-----------------------------------+-----------------------------+
| Read-modify-write (RMW) transform | |
+-----------------------------------+-----------------------------+
| Basic liveness analysis | |
+-----------------------------------+-----------------------------+
| Load optimization | |
+-----------------------------------+-----------------------------+
| | Phi lowering (simple) |
+-----------------------------------+-----------------------------+
| Target lowering | Target lowering |
+-----------------------------------+-----------------------------+
| Full liveness analysis | |
+-----------------------------------+-----------------------------+
| Register allocation | Minimal register allocation |
+-----------------------------------+-----------------------------+
| Phi lowering (advanced) | |
+-----------------------------------+-----------------------------+
| Post-phi register allocation | |
+-----------------------------------+-----------------------------+
| Branch optimization | |
+-----------------------------------+-----------------------------+
| Code emission | Code emission |
+-----------------------------------+-----------------------------+
Goals
=====
......
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