c-writer.cc: represent float consts as integer literals #2389
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Fixes #2388 by representing float constants as reinterpretations of an integer. This seems a bit safer than using a decimal
%.9g
or%.17g
literal, and allows us to remove some special-case handling of NaNs, infinity, and negative zero. It does bloat the output a bit (we could shortenf64_reinterpret_i64
to something likef64i
which would help a little).wasm2c (on MSVC) now passes the new proposed testcases (https://github.com/WebAssembly/wabt/actions/runs/7864206734/job/21455684596 vs. https://github.com/WebAssembly/wabt/actions/runs/7864260678/job/21455793263).