From 354daf5b932319398a9671a9e86bd4606e71a651 Mon Sep 17 00:00:00 2001
From: Andrew Brown <andrew.brown@intel.com>
Date: Wed, 10 Aug 2022 09:47:02 -0700
Subject: [PATCH] [fuzz] Fix issues with single-inst module generator (#4674)

* [fuzz] Fix signature of `i64.extend32_s` single-instruction test

This single-instruction test incorrectly attempted to convert an `i32`
to an `i64`; the correct signature is `i64 -> i64`. See the [WebAssembly
specification](https://webassembly.github.io/spec/core/bikeshed/#a7-index-of-instructions).

* [fuzz] Fix typo in single-instruction function generator

Previously, the `unary!` macro created functions that used two operands
instead of the expected one.
---
 crates/fuzzing/src/generators/single_inst_module.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/crates/fuzzing/src/generators/single_inst_module.rs b/crates/fuzzing/src/generators/single_inst_module.rs
index 1d860d7acd..5f619ca16a 100644
--- a/crates/fuzzing/src/generators/single_inst_module.rs
+++ b/crates/fuzzing/src/generators/single_inst_module.rs
@@ -111,7 +111,7 @@ macro_rules! compare {
 
 macro_rules! unary {
     ($inst:ident, $rust_ty:tt) => {
-        binary! { $inst, valtype!($rust_ty), valtype!($rust_ty) }
+        unary! { $inst, valtype!($rust_ty), valtype!($rust_ty) }
     };
     ($inst:ident, $argument_ty:expr, $result_ty:expr) => {
         SingleInstModule {
@@ -241,7 +241,7 @@ static INSTRUCTIONS: &[SingleInstModule] = &[
     unary!(I32Extend16S, i32),
     unary!(I64Extend8S, i64),
     unary!(I64Extend16S, i64),
-    convert!(I64Extend32S, i32 -> i64),
+    convert!(I64Extend32S, i64 -> i64),
     convert!(I32WrapI64, i64 -> i32),
     convert!(I64ExtendI32S, i32 -> i64),
     convert!(I64ExtendI32U, i32 -> i64),