Add new llvm-backend-test crate.

Cargo.lock

@@ -1464,6 +1464,16 @@ dependencies = [
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "wasmer-llvm-backend-tests"
+version = "0.10.2"
+dependencies = [
+ "wabt 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasmer-llvm-backend 0.11.0",
+ "wasmer-runtime 0.11.0",
+ "wasmer-runtime-core 0.11.0",
+]
+
 [[package]]
 name = "wasmer-middleware-common"
 version = "0.11.0"

Cargo.toml

@@ -50,6 +50,7 @@ members = [
     "lib/win-exception-handler",
     "lib/runtime-c-api",
     "lib/llvm-backend",
+    "lib/llvm-backend-tests",
     "lib/wasi",
     "lib/middleware-common",
     "lib/kernel-loader",

Makefile

@@ -97,6 +97,7 @@ cranelift: spectests-cranelift emtests-cranelift middleware-cranelift wasitests-
 
 llvm: spectests-llvm emtests-llvm wasitests-llvm
 	cargo test -p wasmer-llvm-backend --release
+	cargo test -p wasmer-llvm-backend-tests --release
 	cargo test -p wasmer-runtime-core-tests --release --no-default-features --features backend-llvm
 
 

lib/llvm-backend-tests/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "wasmer-llvm-backend-tests"
+version = "0.10.2"
+authors = ["Nick Lewycky <nick@wasmer.io>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+wabt = "0.9.1"
+wasmer-runtime-core = { path = "../runtime-core", version = "0.11.0" }
+wasmer-runtime = { path = "../runtime", version = "0.11.0" }
+wasmer-llvm-backend = { path = "../llvm-backend", version = "0.11.0", features = ["test"] }
+
+[features]

lib/llvm-backend-tests/src/lib.rs

@@ -0,0 +1,7 @@
+pub use wabt::wat2wasm;
+use wasmer_llvm_backend::LLVMCompiler;
+use wasmer_runtime_core::backend::Compiler;
+
+pub fn get_compiler() -> impl Compiler {
+    LLVMCompiler::new()
+}

lib/llvm-backend-tests/tests/compile.rs

@@ -0,0 +1,22 @@
+use wasmer_llvm_backend_tests::{get_compiler, wat2wasm};
+use wasmer_runtime::imports;
+use wasmer_runtime_core::compile_with;
+
+#[test]
+fn crash_return_with_float_on_stack() {
+    const MODULE: &str = r#"
+(module
+  (type (;0;) (func))
+  (type (;1;) (func (param f64) (result f64)))
+  (func $_start (type 0))
+  (func $fmod (type 1) (param f64) (result f64)
+    local.get 0
+    f64.const 0x0p+0 (;=0;)
+    f64.mul
+    return)
+)
+"#;
+    let wasm_binary = wat2wasm(MODULE.as_bytes()).expect("WAST not valid or malformed");
+    let module = compile_with(&wasm_binary, &get_compiler()).unwrap();
+    let instance = module.instantiate(&imports! {}).unwrap();
+}