asm2wasm i64 support (#723)

* support i64 intrinsics from fastcomp, adding --wasm-only flag

* refactor callImport logic in asm2wasm to avoid recomputing wasm types again

* legalize illegal i64 params in exports and imports

* do safe i64 binary ops depending on precision

* fix addVar, only assert on names if we are using a name

1 files changed, 1 insertions, 0 deletions

diff --git a/src/passes/pass.cpp b/src/passes/pass.cpp
index f3bc6d4c7..ac5ad04c3 100644
--- a/src/passes/pass.cpp
+++ b/src/passes/pass.cpp
@@ -67,6 +67,7 @@ void PassRegistry::registerPasses() {
   registerPass("dce", "removes unreachable code", createDeadCodeEliminationPass);
   registerPass("duplicate-function-elimination", "removes duplicate functions", createDuplicateFunctionEliminationPass);
   registerPass("extract-function", "leaves just one function (useful for debugging)", createExtractFunctionPass);
+  registerPass("legalize-js-interface", "legalizes i64 types on the import/export boundary", createLegalizeJSInterfacePass);
   registerPass("merge-blocks", "merges blocks to their parents", createMergeBlocksPass);
   registerPass("metrics", "reports metrics", createMetricsPass);
   registerPass("nm", "name list", createNameListPass);