[SYCL] Add simple abs(int) to imf libdevice (#9116)

This PR aims to add a simple "int32_t abs(int32_t)" to imf libdevice.
The request is from DL framework developers.

---------

Signed-off-by: jinge90 <ge.jin@intel.com>

Author: jinge90

libdevice/device_imf.hpp

@@ -13,6 +13,7 @@
 #include "imf_bf16.hpp"
 #include "imf_half.hpp"
 #include <cstddef>
+#include <cstdint>
 #include <limits>
 #include <type_traits>
 #ifdef __LIBDEVICE_IMF_ENABLED__

libdevice/imf/imf_inline_fp32.cpp

@@ -131,6 +131,10 @@ DEVICE_EXTERN_C_INLINE float __devicelib_imf_fminf(float a, float b) {
   return __fmin(a, b);
 }
 
+DEVICE_EXTERN_C_INLINE int32_t __devicelib_imf_abs(int32_t x) {
+  return (x >= 0) ? x : -x;
+}
+
 DEVICE_EXTERN_C_INLINE float __devicelib_imf_fabsf(float x) {
   return __fabs(x);
 }

libdevice/imf_wrapper.cpp

@@ -543,6 +543,12 @@ float __devicelib_imf_invf(float);
 DEVICE_EXTERN_C_INLINE
 float __imf_invf(float x) { return __devicelib_imf_invf(x); }
 
+DEVICE_EXTERN_C_INLINE
+int32_t __devicelib_imf_abs(int32_t);
+
+DEVICE_EXTERN_C_INLINE
+int32_t __imf_abs(int32_t x) { return __devicelib_imf_abs(x); }
+
 DEVICE_EXTERN_C_INLINE
 float __devicelib_imf_fabsf(float);
 

llvm/tools/sycl-post-link/SYCLDeviceLibReqMask.cpp

@@ -201,6 +201,7 @@ SYCLDeviceLibFuncMap SDLMap = {
     {"__devicelib_imf_fmaf", DeviceLibExt::cl_intel_devicelib_imf},
     {"__devicelib_imf_floorf", DeviceLibExt::cl_intel_devicelib_imf},
     {"__devicelib_imf_ceilf", DeviceLibExt::cl_intel_devicelib_imf},
+    {"__devicelib_imf_abs", DeviceLibExt::cl_intel_devicelib_imf},
     {"__devicelib_imf_fabsf", DeviceLibExt::cl_intel_devicelib_imf},
     {"__devicelib_imf_truncf", DeviceLibExt::cl_intel_devicelib_imf},
     {"__devicelib_imf_rintf", DeviceLibExt::cl_intel_devicelib_imf},

sycl/include/sycl/builtins.hpp

@@ -2707,6 +2707,7 @@ extern __DPCPP_SYCL_EXTERNAL long long int __imf_mul64hi(long long int x,
                                                          long long int y);
 extern __DPCPP_SYCL_EXTERNAL unsigned long long int
 __imf_umul64hi(unsigned long long int x, unsigned long long int y);
+extern __DPCPP_SYCL_EXTERNAL int __imf_abs(int x);
 extern __DPCPP_SYCL_EXTERNAL float __imf_saturatef(float x);
 extern __DPCPP_SYCL_EXTERNAL float __imf_fmaf(float x, float y, float z);
 extern __DPCPP_SYCL_EXTERNAL float __imf_fabsf(float x);