[SYCLomatic][CMake]Added rules to remove unsupported compiler flags (#…

…2369)

clang/test/dpct/cmake_migration/case_066/case_066_optional_rules.cpp

@@ -0,0 +1,10 @@
+// RUN: rm -rf %T && mkdir -p %T
+// RUN: cd %T
+// RUN: cp %S/input.cmake ./input.cmake
+// RUN: dpct -in-root ./ -out-root out  ./input.cmake --migrate-build-script-only --cuda-include-path="%cuda-path/include" --rule-file=%T/../../../../../../../extensions/cmake_rules/cmake_script_migration_rule_optional.yaml
+// RUN: echo "begin" > %T/diff.txt
+// RUN: diff --strip-trailing-cr %S/expected.txt %T/out/input.cmake >> %T/diff.txt
+// RUN: echo "end" >> %T/diff.txt
+
+// CHECK: begin
+// CHECK-NEXT: end

clang/test/dpct/cmake_migration/case_066/expected.txt

@@ -0,0 +1,3 @@
+string(APPEND CMAKE_C_FLAGS " ")
+string(APPEND CMAKE_CXX_FLAGS " ")
+string(APPEND CMAKE_CXX_FLAGS " ")

clang/test/dpct/cmake_migration/case_066/input.cmake

@@ -0,0 +1,3 @@
+string(APPEND CMAKE_C_FLAGS " -prec_div")
+string(APPEND CMAKE_CXX_FLAGS " -parallel")
+string(APPEND CMAKE_CXX_FLAGS " -wd188,186,144,913,556,858,597,177,1292,167,279,592,94,2722,3199")

clang/tools/dpct/DpctOptRules/CMakeLists.txt

@@ -6,6 +6,7 @@ set(dpct_opt_rule_files
 
 set(dpct_cmake_rule_files
   ${CMAKE_SOURCE_DIR}/../clang/tools/dpct/DpctOptRules/cmake_script_migration_rule.yaml
+  ${CMAKE_SOURCE_DIR}/../clang/tools/dpct/DpctOptRules/cmake_script_migration_rule_optional.yaml
 )
 
 install(

clang/tools/dpct/DpctOptRules/cmake_script_migration_rule_optional.yaml

@@ -0,0 +1,47 @@
+# Copyright (C) Intel Corporation
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+# See https://llvm.org/LICENSE.txt for license information.
+
+# This file will be installed to folder:
+# {dpct_install_folder}/extensions/opt_rules.
+# The rule specified in this file can be imported with commandline option:
+# --rule-file={dpct_install_folder}/extensions/opt_rules/cmake_rules/cmake_script_migration_rule_optional.yaml
+
+- Rule: rule_unsupported_flags_prec_div
+  Kind: CMakeRule
+  Priority: Fallback
+  CmakeSyntax: unsupported_flags_prec_div
+  In: ${func_name}(${args})
+  Out: ${func_name}(${args})
+  Subrules:
+    args:
+      MatchMode: Full
+      In: -prec_div
+      Out: ""
+      RuleId: "remove_prec_div"
+
+- Rule: rule_unsupported_flags_parallel
+  Kind: CMakeRule
+  Priority: Fallback
+  CmakeSyntax: unsupported_flags_parallel
+  In: ${func_name}(${args})
+  Out: ${func_name}(${args})
+  Subrules:
+    args:
+      MatchMode: Full
+      In: -parallel
+      Out: ""
+      RuleId: "remove_parallel"
+
+- Rule: rule_unsupported_flags_wd
+  Kind: CMakeRule
+  Priority: Fallback
+  CmakeSyntax: unsupported_flags_wd
+  In: ${func_name}(${args})
+  Out: ${func_name}(${args})
+  Subrules:
+    args:
+      MatchMode: Full
+      In: -wd${warnings}
+      Out: ""
+      RuleId: "remove_wd"