[SYCL] Add missing cmath builtin (#11012)

Same as #10904 for cmath func `floor`

Author: hdelan

libdevice/cmath_wrapper.cpp

@@ -31,6 +31,9 @@ lldiv_t lldiv(long long x, long long y) { return __devicelib_lldiv(x, y); }
 DEVICE_EXTERN_C_INLINE
 float roundf(float x) { return __devicelib_roundf(x); }
 
+DEVICE_EXTERN_C_INLINE
+float floorf(float x) { return __devicelib_floorf(x); }
+
 DEVICE_EXTERN_C_INLINE
 float scalbnf(float x, int n) { return __devicelib_scalbnf(x, n); }
 

libdevice/cmath_wrapper_fp64.cpp

@@ -21,6 +21,9 @@ double log(double x) { return __devicelib_log(x); }
 DEVICE_EXTERN_C_INLINE
 double round(double x) { return __devicelib_round(x); }
 
+DEVICE_EXTERN_C_INLINE
+double floor(double x) { return __devicelib_floor(x); }
+
 DEVICE_EXTERN_C_INLINE
 double exp(double x) { return __devicelib_exp(x); }
 

libdevice/device_math.h

@@ -55,6 +55,12 @@ double __devicelib_round(double x);
 DEVICE_EXTERN_C
 float __devicelib_roundf(float x);
 
+DEVICE_EXTERN_C
+double __devicelib_floor(double x);
+
+DEVICE_EXTERN_C
+float __devicelib_floorf(float x);
+
 DEVICE_EXTERN_C
 double __devicelib_log(double x);
 

libdevice/fallback-cmath-fp64.cpp

@@ -41,6 +41,9 @@ double __devicelib_modf(double x, double *intpart) {
 DEVICE_EXTERN_C_INLINE
 double __devicelib_round(double x) { return __spirv_ocl_round(x); }
 
+DEVICE_EXTERN_C_INLINE
+double __devicelib_floor(double x) { return __spirv_ocl_floor(x); }
+
 DEVICE_EXTERN_C_INLINE
 double __devicelib_exp2(double x) { return __spirv_ocl_exp2(x); }
 

libdevice/fallback-cmath.cpp

@@ -40,6 +40,9 @@ float __devicelib_scalbnf(float x, int n) { return __spirv_ocl_ldexp(x, n); }
 DEVICE_EXTERN_C_INLINE
 float __devicelib_roundf(float x) { return __spirv_ocl_round(x); }
 
+DEVICE_EXTERN_C_INLINE
+float __devicelib_floorf(float x) { return __spirv_ocl_floor(x); }
+
 DEVICE_EXTERN_C_INLINE
 float __devicelib_logf(float x) { return __spirv_ocl_log(x); }
 

sycl/test-e2e/DeviceLib/cmath_fp64_test.cpp

@@ -19,12 +19,12 @@ namespace s = sycl;
 constexpr s::access::mode sycl_read = s::access::mode::read;
 constexpr s::access::mode sycl_write = s::access::mode::write;
 
-#define TEST_NUM 62
+#define TEST_NUM 63
 
 double ref[TEST_NUM] = {
-    1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0.5, 0, 2, 0, 0,   1,   0,   2,   0, 0, 0,
-    0, 0, 1, 0, 1, 2, 0, 1, 2, 5, 0,   0, 0, 0, 0.5, 0.5, NAN, NAN, 2, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0,   0,   0,   0,   0, 0};
+    1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0.5, 0, 2, 0, 0,   1,   0,   2,   0, 0,
+    0, 0, 0, 1, 0, 1, 2, 0, 1, 2, 5, 0,   0, 0, 0, 0.5, 0.5, NAN, NAN, 2, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0,   0,   0,   0,   0, 0};
 
 double refIptr = 1;
 
@@ -62,6 +62,7 @@ template <class T> void device_cmath_test(s::queue &deviceQueue) {
         res_access[i++] = std::cos(0.0);
         res_access[i++] = std::sin(0.0);
         res_access[i++] = std::round(1.0);
+        res_access[i++] = std::floor(1.0);
         res_access[i++] = std::log(1.0);
         res_access[i++] = std::acos(1.0);
         res_access[i++] = std::asin(0.0);

sycl/test-e2e/DeviceLib/cmath_test.cpp

@@ -21,12 +21,12 @@ namespace s = sycl;
 constexpr s::access::mode sycl_read = s::access::mode::read;
 constexpr s::access::mode sycl_write = s::access::mode::write;
 
-#define TEST_NUM 60
+#define TEST_NUM 61
 
-float ref[TEST_NUM] = {1, 0, 1, 0,   0,   0,   0,   0, 1, 1, 0.5, 0, 0, 1, 0,
-                       2, 0, 0, 0,   0,   0,   1,   0, 1, 2, 0,   1, 2, 5, 0,
-                       0, 0, 0, 0.5, 0.5, NAN, NAN, 2, 0, 0, 0,   0, 0, 0, 0,
-                       0, 0, 0, 0,   0,   0,   0,   0, 0, 0, 0,   0, 0, 0, 0};
+float ref[TEST_NUM] = {1, 0, 1,   1,   0,   0,   0, 0, 0, 1, 1, 0.5, 0, 0, 1, 0,
+                       2, 0, 0,   0,   0,   0,   1, 0, 1, 2, 0, 1,   2, 5, 0, 0,
+                       0, 0, 0.5, 0.5, NAN, NAN, 2, 0, 0, 0, 0, 0,   0, 0, 0, 0,
+                       0, 0, 0,   0,   0,   0,   0, 0, 0, 0, 0, 0,   0};
 
 float refIptr = 1;
 
@@ -59,6 +59,7 @@ template <class T> void device_cmath_test_1(s::queue &deviceQueue) {
         res_access[i++] = std::cos(0.0f);
         res_access[i++] = std::sin(0.0f);
         res_access[i++] = std::round(1.0f);
+        res_access[i++] = std::floor(1.0f);
         res_access[i++] = std::log(1.0f);
         res_access[i++] = std::acos(1.0f);
         res_access[i++] = std::asin(0.0f);