[SYCL] Fix generation of intel_fpga_mem builtin

Author: Fznamznon

clang/lib/CodeGen/CGBuiltin.cpp

@@ -21467,7 +21467,7 @@ RValue CodeGenFunction::EmitIntelFPGAMemBuiltin(const CallExpr *E) {
 
   llvm::Value *Ann = EmitAnnotationCall(F, PtrVal, AnnotStr, SourceLocation());
 
-  cast<CallBase>(Ann)->addFnAttr(llvm::Attribute::ReadNone);
+  cast<CallBase>(Ann)->setDoesNotAccessMemory();
 
   return RValue::get(Ann);
 }

clang/test/CodeGenSYCL/intel-fpga-mem-builtin.cpp

@@ -97,7 +97,7 @@ void foo(float *A, int *B, State *C, State &D) {
   z = __builtin_intel_fpga_mem(&D, PARAM_1 | PARAM_2, 128, 4, TestVal1, TestVal2);
 }
 
-// CHECK-DAG: attributes [[ATT]] = { readnone }
+// CHECK-DAG: attributes [[ATT]] = { memory(none) }
 
 template <typename name, typename Func>
 __attribute__((sycl_kernel)) void kernel_single_task(const Func &kernelFunc) {

clang/test/CodeGenSYCL/no-opaque-ptr-intel-fpga-mem-builtin.cpp

@@ -97,7 +97,7 @@ void foo(float *A, int *B, State *C, State &D) {
   z = __builtin_intel_fpga_mem(&D, PARAM_1 | PARAM_2, 128, 4, TestVal1, TestVal2);
 }
 
-// CHECK-DAG: attributes [[ATT]] = { readnone }
+// CHECK-DAG: attributes [[ATT]] = { memory(none) }
 
 template <typename name, typename Func>
 __attribute__((sycl_kernel)) void kernel_single_task(const Func &kernelFunc) {

clang/test/CodeGenSYCL/no_opaque_intel-fpga-mem-builtin.cpp

@@ -67,7 +67,7 @@ void foo(float *A, int *B, State *C, State &D) {
   f = __builtin_intel_fpga_mem(&F, PARAM_1 | PARAM_2, 127);
 }
 
-// CHECK-DAG: attributes [[ATT]] = { readnone }
+// CHECK-DAG: attributes [[ATT]] = { memory(none) }
 
 template <typename name, typename Func>
 __attribute__((sycl_kernel)) void kernel_single_task(const Func &kernelFunc) {