From bf569b70dcd22bbad59d608bcb04c9f2846f8223 Mon Sep 17 00:00:00 2001
From: Dan Gohman <sunfish@mozilla.com>
Date: Fri, 26 Oct 2018 11:24:43 -0700
Subject: [PATCH] Make cranelift-wasm's `type_to_type` easier to optimize.

---
 lib/wasm/src/translation_utils.rs | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/lib/wasm/src/translation_utils.rs b/lib/wasm/src/translation_utils.rs
index d76d55494f..cc2926dad1 100644
--- a/lib/wasm/src/translation_utils.rs
+++ b/lib/wasm/src/translation_utils.rs
@@ -92,13 +92,13 @@ pub struct Memory {
 
 /// Helper function translating wasmparser types to Cranelift types when possible.
 pub fn type_to_type(ty: wasmparser::Type) -> Result<ir::Type, ()> {
-    match ty {
-        wasmparser::Type::I32 => Ok(ir::types::I32),
-        wasmparser::Type::I64 => Ok(ir::types::I64),
-        wasmparser::Type::F32 => Ok(ir::types::F32),
-        wasmparser::Type::F64 => Ok(ir::types::F64),
-        _ => Err(()),
-    }
+    Ok(match ty {
+        wasmparser::Type::I32 => ir::types::I32,
+        wasmparser::Type::I64 => ir::types::I64,
+        wasmparser::Type::F32 => ir::types::F32,
+        wasmparser::Type::F64 => ir::types::F64,
+        _ => return Err(()),
+    })
 }
 
 /// Turns a `wasmparser` `f32` into a `Cranelift` one.