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Depends on emscripten-core/emscripten#10741
which ensures that table indexes are unique. With that guarantee,
a main module can just add its function pointers into the table, and
use them based on that index. The loader will then see them in the
table and then give other modules the identical function pointer for
a function, ensuring function pointer equality.
This avoids calling fp$ functions during startup for the main
module's own functions (which are slow). We do still call fp$s
of things we import from outside, as we don't have anything to
put in the table for them, we depend on the loader for that.
I suspect this can also be done with SIDE_MODULES, but did not
want to try too much at once.
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Function signatures were previously redundantly stored on Function
objects as well as on FunctionType objects. These two signature
representations had to always be kept in sync, which was error-prone
and needlessly complex. This PR takes advantage of the new ability of
Type to represent multiple value types by consolidating function
signatures as a pair of Types (params and results) stored on the
Function object.
Since there are no longer module-global named function types,
significant changes had to be made to the printing and emitting of
function types, as well as their parsing and manipulation in various
passes.
The C and JS APIs and their tests also had to be updated to remove
named function types.
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Adds tail call support to fuzzer and makes small changes to handle return calls in multiple utilities and passes. Makes larger changes to DAE and inlining passes to properly handle tail calls.
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(#2242)
Main change here is in pass.h, everything else is changes to work with the new API.
The add("name") remains as before, while the weird variadic add(..) which constructed the pass now just gets a std::unique_ptr of a pass. This also makes the memory management internally fully automatic. And it makes it trivial to parallelize WalkerPass::run on parallel passes.
As a benefit, this allows removing a lot of code since in many cases there is no need to create a new pass runner, and running a pass can be just a single line.
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Applies the changes in #2065, and temprarily disables the hook since it's too slow to run on a change this large. We should re-enable it in a later commit.
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Mass change to apply clang-format to everything. We are applying this in a PR by me so the (git) blame is all mine ;) but @aheejin did all the work to get clang-format set up and all the manual work to tidy up some things to make the output nicer in #2048
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This replaces the multiple asm.js tables (of power-of-2 size) with a single simple table.
Also supports importing the table.
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(#1989)
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optimizing to an unreachable (#1985)
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