[FORMAT] Add .clang-format for C++ code

Signed-off-by: nileshnegi <[email protected]>

.clang-format

@@ -0,0 +1,154 @@
+# Style file for MLSE Libraries based on the modified rocBLAS style
+
+# Common settings
+BasedOnStyle:  WebKit
+TabWidth:        4
+IndentWidth:     4
+UseTab:          Never
+ColumnLimit: 100
+UseCRLF: false
+
+# Other languages JavaScript, Proto
+
+---
+Language: Json
+DisableFormat: true
+
+---
+Language: Cpp
+
+# http://releases.llvm.org/6.0.1/tools/clang/docs/ClangFormatStyleOptions.html#disabling-formatting-on-a-piece-of-code
+# int formatted_code;
+# // clang-format off
+#     void    unformatted_code  ;
+# // clang-format on
+# void formatted_code_again;
+
+DisableFormat: false
+Standard: Cpp11
+
+AccessModifierOffset: -4
+AlignAfterOpenBracket: true
+AlignArrayOfStructures: Right
+AlignConsecutiveAssignments: true
+AlignConsecutiveDeclarations: true
+AlignEscapedNewlines: Left
+AlignOperands: true
+AlignTrailingComments: false
+AllowAllArgumentsOnNextLine: false
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: Never
+AllowShortCaseLabelsOnASingleLine: true
+AllowShortFunctionsOnASingleLine: Empty
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: Yes
+BinPackArguments: false
+BinPackParameters: false
+BitFieldColonSpacing: Both
+
+# Configure each individual brace in BraceWrapping
+BreakBeforeBraces: Custom
+# Control of individual brace wrapping cases
+BraceWrapping:
+    AfterCaseLabel: true
+    AfterClass: true
+    AfterControlStatement: Always
+    AfterEnum: true
+    AfterExternBlock: false
+    AfterFunction: true
+    AfterNamespace: true
+    AfterStruct: true
+    AfterUnion: true
+    BeforeCatch: true
+    BeforeElse: true
+    BeforeLambdaBody: true
+    BeforeWhile: true
+    IndentBraces: false
+    SplitEmptyFunction: false
+    SplitEmptyRecord: false
+    SplitEmptyNamespace: false
+
+BreakBeforeBinaryOperators: All
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializers: BeforeComma
+BreakInheritanceList: BeforeComma
+BreakStringLiterals: true
+CommentPragmas: '^ IWYU pragma:'
+CompactNamespaces: false
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DeriveLineEnding: false
+DerivePointerAlignment: false
+EmptyLineAfterAccessModifier: Never
+EmptyLineBeforeAccessModifier: Always
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: true
+ForEachMacros: []
+IfMacros: []
+IncludeBlocks: Preserve
+IndentAccessModifiers: false
+IndentCaseBlocks: true
+IndentCaseLabels: true
+IndentExternBlock: NoIndent
+IndentPPDirectives: BeforeHash
+IndentWrappedFunctionNames: true
+KeepEmptyLinesAtTheStartOfBlocks: true
+LambdaBodyIndentation: Signature
+MacroBlockBegin: ''
+MacroBlockEnd: ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+PPIndentWidth: -1
+PackConstructorInitializers: NextLine
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 60
+PointerAlignment: Left
+QualifierAlignment: Leave
+ReferenceAlignment: Pointer
+ReflowComments: false
+ShortNamespaceLines: 0
+SortIncludes: CaseSensitive
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: false
+SpaceAroundPointerQualifiers: Default
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCaseColon: false
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeParens: Never
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceBeforeSquareBrackets: false
+SpaceInEmptyBlock: false
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles: Never
+SpacesInCStyleCastParentheses: false
+SpacesInConditionalStatement: false
+SpacesInContainerLiterals: true
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+
+AttributeMacros: ['__host__', '__device__', '__global__', '__forceinline__', '__shared__', '__launch_bounds__']
+# Trick clang into thinking that our C-style attributes are C++-style attributes
+Macros:
+    - __host__=[[host]]
+    - __device__=[[device]]
+    - __global__=[[global]]
+    - __forceinline__=[[forceinline]]
+    - __shared__=[[shared]]
+    - __launch_bounds__(x)=[[launch_bounds(x)]]
+    - __attribute__(x)=[[attribute(x)]]
+BreakAfterAttributes: Always
+
+---

toolchain-linux.cmake

@@ -6,7 +6,7 @@ else()
   set(rocm_bin "/opt/rocm/bin")
 endif()
 
-if (NOT DEFINED ENV{CXX})
+if (NOT DEFINED ENV{CXX} AND NOT CMAKE_CXX_COMPILER)
   set(CMAKE_CXX_COMPILER "${rocm_bin}/amdclang++" CACHE PATH "Path to the C++ compiler")
 else()
   set(CMAKE_CXX_COMPILER "$ENV{CXX}" CACHE PATH "Path to the C++ compiler")
@@ -15,9 +15,10 @@ endif()
 if (NOT DEFINED ENV{CXXFLAGS})
   set(CMAKE_CXX_FLAGS_DEBUG "-g -O1")
   set(CMAKE_CXX_FLAGS_RELEASE "-O3")
+  set(CMAKE_CXX_FLAGS "-O3")
 endif()
 
-if (NOT DEFINED ENV{CC})
+if (NOT DEFINED ENV{CC} AND NOT CMAKE_C_COMPILER)
   set(CMAKE_C_COMPILER "${rocm_bin}/amdclang" CACHE PATH "Path to the C compiler")
 else()
   set(CMAKE_C_COMPILER "$ENV{CC}" CACHE PATH "Path to the C compiler")
@@ -26,4 +27,5 @@ endif()
 if (NOT DEFINED ENV{CFLAGS})
   set(CMAKE_C_FLAGS_DEBUG "-g -O1")
   set(CMAKE_C_FLAGS_RELEASE "-O3")
+  set(CMAKE_C_FLAGS "-O3")
 endif()