fix: moved f16 formatting code to common module

Author: madhav-madhusoodanan

crates/intrinsic-test/src/arm/intrinsic.rs

@@ -127,16 +127,7 @@ impl IntrinsicDefinition<ArmIntrinsicType> for Intrinsic<ArmIntrinsicType> {
             constraints
         };
 
-        // the `intrinsic-test` crate compares the output of C and Rust intrinsics. Currently, It uses
-        // a string representation of the output value to compare. In C, f16 values are currently printed
-        // as hexadecimal integers. Since https://github.com/rust-lang/rust/pull/127013, rust does print
-        // them as decimal floating point values. To keep the intrinsics tests working, for now, format
-        // vectors containing f16 values like C prints them.
-        let return_value = match self.results.kind() {
-            TypeKind::Float if self.results.inner_size() == 16 => "debug_f16(__return_value)",
-            _ => "format_args!(\"{__return_value:.150?}\")",
-        };
-
+        let return_value = self.format_f16_return_value();
         let indentation2 = indentation.nested();
         let indentation3 = indentation2.nested();
 

crates/intrinsic-test/src/common/intrinsic.rs

@@ -6,6 +6,7 @@ use itertools::Itertools;
 use super::argument::Argument;
 use super::gen_c::generate_c_program;
 use super::gen_rust::generate_rust_program;
+use super::intrinsic_helpers::TypeKind;
 
 // The number of times each intrinsic will be called.
 const PASSES: u32 = 20;
@@ -41,6 +42,20 @@ where
     /// there is an int i in scope which is the current pass number.
     fn print_result_c(&self, _indentation: Indentation, _additional: &str) -> String;
 
+    fn format_f16_return_value(&self) -> String {
+        // the `intrinsic-test` crate compares the output of C and Rust intrinsics. Currently, It uses
+        // a string representation of the output value to compare. In C, f16 values are currently printed
+        // as hexadecimal integers. Since https://github.com/rust-lang/rust/pull/127013, rust does print
+        // them as decimal floating point values. To keep the intrinsics tests working, for now, format
+        // vectors containing f16 values like C prints them.
+        let return_value = match self.results().kind() {
+            TypeKind::Float if self.results().inner_size() == 16 => "debug_f16(__return_value)",
+            _ => "format_args!(\"{__return_value:.150?}\")",
+        };
+
+        String::from(return_value)
+    }
+
     fn generate_loop_c(
         &self,
         indentation: Indentation,