T0b1/wasmtime
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Mention cton_frontend when discussing SSA construction.

Browse Source
This commit is contained in:
Dan Gohman
2017-10-19 10:58:54 -07:00
parent 1a1774af15
commit 79a81d98c1
1 changed files with 8 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
cranelift/docs/langref.rst
View File

@@ -74,13 +74,15 @@ SSA values: In the entry block, ``v4`` is the initial value. In the loop block
variable during each iteration. Finally, ``v12`` is computed as the induction variable during each iteration. Finally, ``v12`` is computed as the induction
variable value for the next iteration. variable value for the next iteration.
It can be difficult to generate correct SSA form if the program being converted The `cton_frontend` crate contains utilities for translating from programs
into Cretonne :term:`IL` contains multiple assignments to the same variables. containing multiple assignments to the same variables into SSA form for
Such variables can be presented to Cretonne as :term:`stack slot`\s instead. Cretonne :term:`IL`.
Such variables can also be presented to Cretonne as :term:`stack slot`\s.
Stack slots are accessed with the :inst:`stack_store` and :inst:`stack_load` Stack slots are accessed with the :inst:`stack_store` and :inst:`stack_load`
instructions which behave more like variable accesses in a typical programming instructions, and can have their address taken with :inst:`stack_addr`, which
language. Cretonne can perform the necessary data-flow analysis to convert stack supports C-like programming languages where local variables can have their
slots to SSA form. address taken.
.. _value-types: .. _value-types: