Merge pull request #1864 from CosmWasm/1845-float-support

Float support

.circleci/config.yml

@@ -61,7 +61,7 @@ workflows:
       - contract_hackatom
       - contract_ibc_reflect
       - contract_ibc_reflect_send
-      - contract_floaty
+      # - contract_floaty # This contract needs nightly Rust to compile
       - contract_queue
       - contract_reflect
       - contract_staking
@@ -1030,13 +1030,14 @@ jobs:
           name: Build development contracts
           command: |
             echo "Building all contracts under ./contracts"
+            export GLOBIGNORE="./contracts/floaty/"
             docker run --volumes-from with_code cosmwasm/rust-optimizer:0.12.13 ./contracts/*/
       - run:
           name: Check development contracts
           command: |
             echo "Checking all contracts under ./artifacts"
             docker run --volumes-from with_code rust:1.67.0 \
-              /bin/bash -e -c 'export GLOBIGNORE="artifacts/floaty.wasm"; cd ./code; cargo run --bin cosmwasm-check artifacts/*.wasm'
+              /bin/bash -e -c 'cd ./code; cargo run --bin cosmwasm-check artifacts/*.wasm'
             docker cp with_code:/code/artifacts .
       - run:
           name: Publish artifacts on GitHub

CHANGELOG.md

@@ -23,6 +23,7 @@ and this project adheres to
   `to_{vec,binary}` in favor of `to_json_{vec,binary}` and `from_{slice,binary}`
   in favor of `from_json`. ([#1886])
 - cosmwasm-std: Add `SignedDecimal` and `SignedDecimal256` ([#1807]).
+- cosmwasm-vm: Allow float operations with NaN canonicalization ([#1864]).
 
 [#1854]: https://github.com/CosmWasm/cosmwasm/pull/1854
 [#1861]: https://github.com/CosmWasm/cosmwasm/pull/1861
@@ -31,6 +32,7 @@ and this project adheres to
 [#1870]: https://github.com/CosmWasm/cosmwasm/pull/1870
 [#1886]: https://github.com/CosmWasm/cosmwasm/pull/1886
 [#1807]: https://github.com/CosmWasm/cosmwasm/pull/1807
+[#1864]: https://github.com/CosmWasm/cosmwasm/pull/1864
 
 ## [1.4.0] - 2023-09-04
 

contracts/floaty/.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+  "rust-analyzer.cargo.target": "wasm32-unknown-unknown",
+  "rust-analyzer.cargo.extraEnv": {
+    "RUSTFLAGS": "-C target-feature=+nontrapping-fptoint"
+  }
+}

contracts/floaty/Cargo.toml

@@ -35,7 +35,7 @@ cosmwasm-schema = { path = "../../packages/schema" }
 cosmwasm-std = { path = "../../packages/std" }
 schemars = "0.8.3"
 serde = { version = "1.0.103", default-features = false, features = ["derive"] }
-thiserror = "1.0.26"
+rand_chacha = { version = "0.3.1", default-features = false }
 
 [dev-dependencies]
 cosmwasm-vm = { path = "../../packages/vm", default-features = false, features = ["iterator"] }

contracts/floaty/README.md

@@ -0,0 +1,13 @@
+# Floaty Contract
+
+This contract contains all WebAssembly floating point instructions. It is used
+for testing the floating point support.
+
+In order to compile it, you need a nightly version of Rust and enable the
+`nontrapping-fptoint` target-feature. This allows the usage of
+[some more conversion instructions](https://github.com/WebAssembly/spec/blob/main/proposals/nontrapping-float-to-int-conversion/Overview.md).
+To do this, run:
+
+```sh
+RUSTFLAGS="-C link-arg=-s -C target-feature=+nontrapping-fptoint" cargo wasm
+```