[SYCL] spir-v vars should not be defined for GPU targets (#18676)

For AMD/Cuda item queries are provided by libclc.

Author: jchlanda

libdevice/crt_wrapper.cpp

@@ -51,13 +51,24 @@ int memcmp(const void *s1, const void *s2, size_t n) {
 DEVICE_EXTERN_C_INLINE
 int rand() {
   size_t gid =
+#if defined(__NVPTX__) || defined(__AMDGCN__)
+      (__spirv_GlobalInvocationId_x() * __spirv_GlobalSize_y() *
+       __spirv_GlobalSize_z()) +
+      (__spirv_GlobalInvocationId_y() * __spirv_GlobalSize_z()) +
+      __spirv_GlobalInvocationId_z();
+#else
       (__spirv_BuiltInGlobalInvocationId.x * __spirv_BuiltInGlobalSize.y *
        __spirv_BuiltInGlobalSize.z) +
       (__spirv_BuiltInGlobalInvocationId.y * __spirv_BuiltInGlobalSize.z) +
       __spirv_BuiltInGlobalInvocationId.z;
-  size_t global_size = __spirv_BuiltInGlobalSize.x *
-                       __spirv_BuiltInGlobalSize.y *
-                       __spirv_BuiltInGlobalSize.z;
+#endif
+  size_t global_size =
+#if defined(__NVPTX__) || defined(__AMDGCN__)
+      __spirv_GlobalSize_x() * __spirv_GlobalSize_y() * __spirv_GlobalSize_z();
+#else
+      __spirv_BuiltInGlobalSize.x * __spirv_BuiltInGlobalSize.y *
+      __spirv_BuiltInGlobalSize.z;
+#endif
   size_t gid1 =
       (global_size > RAND_NEXT_LEN) ? (gid & (RAND_NEXT_LEN - 1)) : gid;
   if (RAND_NEXT_ACC[gid1] == 0)
@@ -73,13 +84,24 @@ int rand() {
 DEVICE_EXTERN_C_INLINE
 void srand(unsigned int seed) {
   size_t gid =
+#if defined(__NVPTX__) || defined(__AMDGCN__)
+      (__spirv_GlobalInvocationId_x() * __spirv_GlobalSize_y() *
+       __spirv_GlobalSize_z()) +
+      (__spirv_GlobalInvocationId_y() * __spirv_GlobalSize_z()) +
+      __spirv_GlobalInvocationId_z();
+#else
       (__spirv_BuiltInGlobalInvocationId.x * __spirv_BuiltInGlobalSize.y *
        __spirv_BuiltInGlobalSize.z) +
       (__spirv_BuiltInGlobalInvocationId.y * __spirv_BuiltInGlobalSize.z) +
       __spirv_BuiltInGlobalInvocationId.z;
-  size_t global_size = __spirv_BuiltInGlobalSize.x *
-                       __spirv_BuiltInGlobalSize.y *
-                       __spirv_BuiltInGlobalSize.z;
+#endif
+  size_t global_size =
+#if defined(__NVPTX__) || defined(__AMDGCN__)
+      __spirv_GlobalSize_x() * __spirv_GlobalSize_y() * __spirv_GlobalSize_z();
+#else
+      __spirv_BuiltInGlobalSize.x * __spirv_BuiltInGlobalSize.y *
+      __spirv_BuiltInGlobalSize.z;
+#endif
   size_t gid1 =
       (global_size > RAND_NEXT_LEN) ? (gid & (RAND_NEXT_LEN - 1)) : gid;
   RAND_NEXT_ACC[gid1] = seed;

libdevice/spirv_vars.h

@@ -10,11 +10,23 @@
 #define __LIBDEVICE_SPIRV_VARS_H
 
 #include "device.h"
+#include <cstddef>
 
-#if defined(__SPIR__) || defined(__SPIRV__) || defined(__NVPTX__) ||           \
-    defined(__AMDGCN__)
+#if defined(__NVPTX__) || defined(__AMDGCN__)
+// For AMD/Cuda those symbols will be provided by libclc.
+DEVICE_EXTERNAL size_t __spirv_GlobalInvocationId_x();
+DEVICE_EXTERNAL size_t __spirv_GlobalInvocationId_y();
+DEVICE_EXTERNAL size_t __spirv_GlobalInvocationId_z();
+DEVICE_EXTERNAL size_t __spirv_LocalInvocationId_x();
+DEVICE_EXTERNAL size_t __spirv_LocalInvocationId_y();
+DEVICE_EXTERNAL size_t __spirv_LocalInvocationId_z();
+DEVICE_EXTERNAL size_t __spirv_GlobalSize_x();
+DEVICE_EXTERNAL size_t __spirv_GlobalSize_y();
+DEVICE_EXTERNAL size_t __spirv_GlobalSize_z();
+#endif // __NVPTX__ || __AMDGCN__
+
+#if defined(__SPIR__) || defined(__SPIRV__)
 
-#include <cstddef>
 #include <cstdint>
 
 #define __SPIRV_VAR_QUALIFIERS EXTERN_C const
@@ -63,5 +75,5 @@ const size_t_vec __spirv_BuiltInGlobalInvocationId{};
 const size_t_vec __spirv_BuiltInLocalInvocationId{};
 #endif // !__SPIR__ && !__SPIRV__
 
-#endif // __SPIR__ || __SPIRV__ || __NVPTX__ || __AMDGCN__
+#endif // __SPIR__ || __SPIRV__
 #endif // __LIBDEVICE_SPIRV_VARS_H