| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| |
|
|
|
| |
Remove old, experimental instructions and type encodings that will not be
shipped as part of WasmGC. Updating the encodings and text format to match the
final spec is left as future work.
|
| |
|
|
|
|
|
| |
This is a partial revert of #3669, which removed the old implementation of
Type::getLeastUpperBound that did not correctly handle recursive types. The new
implementation in this PR uses a TypeBuilder to construct LUBs and for recursive
types, it returns a temporary HeapType that has not yet been fully constructed
to break what would otherwise be infinite recursions.
|
| |
|
|
|
|
|
|
| |
Since correct LUB calculation for recursive types is complicated, stop depending
on LUBs throughout the code base. This also fixes a validation bug in which the
validator required blocks to be typed with the LUB of all the branch types, when
in fact any upper bound should have been valid. In addition to fixing that bug,
this PR simplifies the code for break handling by not storing redundant
information about the arity of types.
|
| |
|
|
|
| |
As a readability improvement, use an enum with `Polymorphic` and `Fixed`
variants to represent the polymorphic behavior of StackSignatures rather than a
`bool uneachable`.
|
| |
|
|
|
|
|
|
| |
Add a utility for calculating the least upper bounds of two StackSignatures,
taking into account polymorphic unreachable behavior. This will important in the
finalization and validation of Poppy IR blocks, where a block is allowed to
directly produce fewer values than the branches that target it carry if the
difference can be made up for by polymorphism due to an unreachable instruction
in the block.
|
| |
|
|
|
| |
Adds an IR profile to each function so the validator can determine
which validation rules to apply and adds a flag to have the wast
parser set the profile to Poppy for testing purposes.
|
|
|
Implement and test utilities for manipulating and analyzing a new
stacky form of Binaryen IR that is able to express arbitrary stack
machine code. This new Poppy IR will eventually replace Stack IR, and
new optimization passes will be built with these utilities. See #3059.
|
