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* Move WasmType function implementations to wasm.cpp
* Move Literal methods to wasm.cpp
* Reorder wasm.cpp shared constants back to top
* Move expression functions to wasm.cpp
* Finish moving things to wasm.cpp
* Split out Literal into its own .h/.cpp. Also factor out common wasm-type module
* Remove unneeded/transitive includes from wasm.h
* Add comment to try/check methods
* Rename tryX/checkX methods to getXOrNull
* Add missing include that should fix appveyor build breakage
* More appveyor
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* optimize pow(x,2) => x*x
* optimize pow(x, 0.5) => sqrt(x)
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* fix a bug where compared sign-exts of different sizes were turned into zero-exts
* fix a bug where we consider an almost sign-ext as ok to change the sign of a load inside it, ignoring that the load has the extra shifting
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unruly (#928)
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Simple local common subexpression elimination. Useful mostly to reduce code size (as VMs do GVN etc.). Enabled by default in -Oz.
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* use 3 modes for potentially trapping ops in asm2wasm: allow (just emit a potentially trapping op), js (do exactly what js does, even if it takes a slow ffi to do it), and clamp (avoid the trap by clamping as necessary)
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out the spec (#932)
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if would be invalid (#927)
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* asm2wasm should not promote an overloaded import result to f64 if it is a single type and void
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* fix BINARYEN_PASS_DEBUG option
* Add isNested property to passRunner
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* Refactor AsmConstWalker to use smaller subfunctions
* Replace cashew::IStrings with Names
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Most module walkers use PostWalker<T, Visitor<T>>, let that pattern be
expressed as simply PostWalker<T>
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* Fully handle EM_ASM in s2wasm
* Iterate with size_ts, remember to erase from importsMap as well
* Fix dot_s test EM_ASM signatures
* Move Name out to its own file, support/name.h
* Move removeImportsWithSubstring out of Module class
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* fix asm2wasm import type setting - set the type of used calls based on the context, early, so it's valid in the optimizer
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else (#915)
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PickLoadSigns pass
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zero-extend
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fix the maxBits of a signed load, which this uncovered - all the bits may be used in such a case
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* optimize 'almost' sign extends: when we can remove one entirely, then extra shifts can be left behind. with that in place, we can then optimize 'squared' operations like shl on shl, as doing so does not break our sign extend opts
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* optimize sign-extend output
* optimize sign-extend input
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* update wasm version to 0x01, in prep for release, and since browsers are ready to accept it
* update wasm.js
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* an unreachable block is one with an unreachable child, plus no breaks
* document new difference between binaryen IR and wasm
* fix relooper missing finalize
* add a bunch of tests
* don't assume that test/*.wast files print to themselves exactly; print to from.wast. this allows wast tests with comments in them
* emit unreachable blocks as (block .. unreachable) unreachable
* if without else and unreachable ifTrue is still not unreachable, it should be none
* update wasm.js
* cleanups
* empty blocks have none type
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* improve precise integer operations: call into a wasm function to do the possibly-trapping div/rem, which handles the corner cases, instead of an ffi. also fix a bug in the existing parallel 64-bit code for this
* remove no longer needed wasm.js-post.js file (it moved into emscripten repo)
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* parse file/line comments in asm.js into debug intrinsics
* convert debug intrinsics into annotations, and print them
* ignore --debuginfo if not emitting text, as wasm binaries don't support that yet
* emit full debug info when -g and emitting text; when -g and emitting binary, all we can do is the Names section
* update wasm.js
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* add --ignore-implicit-traps option, and by default do not ignore them, to properly preserve semantics
* implicit traps can be reordered, but are side effects and should not be removed
* add testing for --ignore-implicit-traps
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Shrink asm.js ast
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assigning to a name and not an arbitrary ast node
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