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Line Counts
| SML/NJ | MLRISC |
Generic | 3,023 | 6,814 |
Hppa | 725 | 2,285 |
Alpha | 614 | 2,316 |
TOTAL | 4,362 | 11,415 |
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The table shows the number of lines involved in a basic MLRISC code
generator for SML/NJ that only does graph coloring register
allocation. The SML/NJ column shows the number of lines specific to
SML/N and the MLRISC column shows the number of lines specific to
MLRISC. The Generic shows the
number of lines that are target independent for both SML/NJ and
MLRISC. The Hppa and
Alpha shows the number of lines that are
target dependent for both the HP Hppa and DEC Alpha targets.
The bulk of the 3,023 generic to SML/NJ is involved in the
generation of MLRisc trees. Once this is done the incremental cost
of adding a target is between 600 to 700 lines.
The MLRISC column shows that the bulk of MLRISC is quite generic and
a client is saved from writing 11,415 lines of code.
| SML/NJ | MLRISC |
Generic | 121 + 3,023 | 15,686 + 6,814 |
Hppa | 32 + 725 | 920 + 2,285 |
Alpha | 614 | 2,316 |
TOTAL | 153 + 4,362 | 16,606 + 11,415 |
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If one were to include the preliminary numbers for global acyclic
scheduling in the above table, we find that the incremental cost
required by the client is quite small -- approximately 153
lines of which 121 are generic. However, the scheduling
infra structure is quite large, a lot of it being quite generic.
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Last modified: Mon Jun 8 14:18:05 UTC 2009 by buildd@vernadsky
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