Custom wast tests

In this directory we have created wast tests for different cases where we want to test other scenarios than the ones offered by the standard WebAssembly spectests.

NaN canonicalization: nan-canonicalization.wast

This is an extra set of tests that assure that operations with NaNs are deterministic regardless of the environment/chipset where it executes in.

Call Indirect Spilled Stack: call-indirect-spilledd-stack.wast

We had an issue occuring that was making singlepass not working properly on the WebAssembly benchmark: https://00f.net/2019/10/22/updated-webassembly-benchmark/.

This is a test case to ensure it doesn't reproduce again in the future.

Multiple Traps: multiple-traps.wast

This is a test assuring functions that trap can be called multiple times.

Fac: fac.wast

This is a simple factorial program.

Check that struct-return on the stack doesn't overflow: stack-overflow-sret.wast

Stack space for a structure returning function call should be allocated once up front, not once in each call.

Divide by Zero: divide.wast

This is a simple test to check that a divide by zero is correctly trapped

Atomic Load: atomic_load.wast

This is a simple test to check that load an atomic "to far" in memory trigger a OutOfBound trap