Add fp16 testing to conversions and bruteforce (#1975)

Merge the `fp16-staging` branch into `main`, adding fp16 (`half`)
testing to the conversions and math bruteforce tests.

---------

Signed-off-by: Ahmed Hesham <ahmed.hesham@arm.com>
Signed-off-by: Sven van Haastregt <sven.vanhaastregt@arm.com>
Signed-off-by: Guo, Yilong <yilong.guo@intel.com>
Signed-off-by: John Kesapides <john.kesapides@arm.com>
Co-authored-by: Marcin Hajder <marcin.hajder@gmail.com>
Co-authored-by: Ewan Crawford <ewan@codeplay.com>
Co-authored-by: Wawiorko, Grzegorz <grzegorz.wawiorko@intel.com>
Co-authored-by: Sreelakshmi Haridas Maruthur <sharidas@quicinc.com>
Co-authored-by: Harald van Dijk <harald@gigawatt.nl>
Co-authored-by: Ben Ashbaugh <ben.ashbaugh@intel.com>
Co-authored-by: Haonan Yang <haonan.yang@intel.com>
Co-authored-by: Ahmed Hesham <117350656+ahesham-arm@users.noreply.github.com>
Co-authored-by: niranjanjoshi121 <43807392+niranjanjoshi121@users.noreply.github.com>
Co-authored-by: Wenwan Xing <wenwan.xing@intel.com>
Co-authored-by: Yilong Guo <yilong.guo@intel.com>
Co-authored-by: Romaric Jodin <89833130+rjodinchr@users.noreply.github.com>
Co-authored-by: joshqti <127994991+joshqti@users.noreply.github.com>
Co-authored-by: Pekka Jääskeläinen <pekka.jaaskelainen@tuni.fi>
Co-authored-by: imilenkovic00 <155085410+imilenkovic00@users.noreply.github.com>
Co-authored-by: John Kesapides <46718829+JohnKesapidesARM@users.noreply.github.com>
Co-authored-by: Aharon Abramson <aharon.abramson@mobileye.com>

test_common/harness/errorHelpers.cpp

@@ -371,7 +371,7 @@ static float Ulp_Error_Half_Float(float test, double reference)
  return (float)scalbn(testVal - reference, ulp_exp);
 }
 
-float Ulp_Error_Half(cl_half test, float reference)
+float Ulp_Error_Half(cl_half test, double reference)
 {
  return Ulp_Error_Half_Float(cl_half_to_float(test), reference);
 }

test_common/harness/errorHelpers.h

@@ -185,7 +185,7 @@ static int vlog_win32(const char *format, ...);
 
 extern const char *IGetErrorString(int clErrorCode);
 
-extern float Ulp_Error_Half(cl_half test, float reference);
+extern float Ulp_Error_Half(cl_half test, double reference);
 extern float Ulp_Error(float test, double reference);
 extern float Ulp_Error_Double(double test, long double reference);
 

test_common/harness/rounding_mode.h

@@ -1,5 +1,5 @@
 //
-// Copyright (c) 2017 The Khronos Group Inc.
+// Copyright (c) 2017-2024 The Khronos Group Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -42,10 +42,11 @@ typedef enum
  kshort = 3,
  kuint = 4,
  kint = 5,
- kfloat = 6,
- kdouble = 7,
- kulong = 8,
- klong = 9,
+ khalf = 6,
+ kfloat = 7,
+ kdouble = 8,
+ kulong = 9,
+ klong = 10,
 
  // This goes last
  kTypeCount