From 90c6156aa8272ec9811647d9b6c87d7ee4326e35 Mon Sep 17 00:00:00 2001
From: Chuck Atkins <chuck.atkins@kitware.com>
Date: Tue, 5 Feb 2019 11:48:00 -0500
Subject: XLClang: Add a new compiler ID for the clang-based XL compiler

---
 Modules/CMakeCompilerIdDetection.cmake             |  1 +
 Modules/Compiler/XLClang-C-DetermineCompiler.cmake |  8 ++++++++
 Modules/Compiler/XLClang-C.cmake                   | 17 +++++++++++++++++
 .../Compiler/XLClang-CXX-DetermineCompiler.cmake   |  8 ++++++++
 Modules/Compiler/XLClang-CXX.cmake                 | 20 ++++++++++++++++++++
 Modules/Compiler/XLClang.cmake                     | 22 ++++++++++++++++++++++
 Modules/Platform/AIX-XLClang-C.cmake               |  2 ++
 Modules/Platform/AIX-XLClang-CXX.cmake             |  2 ++
 Modules/Platform/AIX-XLClang.cmake                 | 15 +++++++++++++++
 9 files changed, 95 insertions(+)
 create mode 100644 Modules/Compiler/XLClang-C-DetermineCompiler.cmake
 create mode 100644 Modules/Compiler/XLClang-C.cmake
 create mode 100644 Modules/Compiler/XLClang-CXX-DetermineCompiler.cmake
 create mode 100644 Modules/Compiler/XLClang-CXX.cmake
 create mode 100644 Modules/Compiler/XLClang.cmake
 create mode 100644 Modules/Platform/AIX-XLClang-C.cmake
 create mode 100644 Modules/Platform/AIX-XLClang-CXX.cmake
 create mode 100644 Modules/Platform/AIX-XLClang.cmake

diff --git a/Modules/CMakeCompilerIdDetection.cmake b/Modules/CMakeCompilerIdDetection.cmake
index 7039b8d..96a14f7 100644
--- a/Modules/CMakeCompilerIdDetection.cmake
+++ b/Modules/CMakeCompilerIdDetection.cmake
@@ -57,6 +57,7 @@ function(compiler_id_detection outvar lang)
       HP
       Compaq
       zOS
+      XLClang
       XL
       VisualAge
       PGI
diff --git a/Modules/Compiler/XLClang-C-DetermineCompiler.cmake b/Modules/Compiler/XLClang-C-DetermineCompiler.cmake
new file mode 100644
index 0000000..4d89921
--- /dev/null
+++ b/Modules/Compiler/XLClang-C-DetermineCompiler.cmake
@@ -0,0 +1,8 @@
+set(_compiler_id_pp_test "defined(__ibmxl__) && defined(__clang__)")
+
+set(_compiler_id_version_compute "
+# define @PREFIX@COMPILER_VERSION_MAJOR @MACRO_DEC@(__ibmxl_version__)
+# define @PREFIX@COMPILER_VERSION_MINOR @MACRO_DEC@(__ibmxl_release__)
+# define @PREFIX@COMPILER_VERSION_PATCH @MACRO_DEC@(__ibmxl_modification__)
+# define @PREFIX@COMPILER_VERSION_TWEAK @MACRO_DEC@(__ibmxl_ptf_fix_level__)
+")
diff --git a/Modules/Compiler/XLClang-C.cmake b/Modules/Compiler/XLClang-C.cmake
new file mode 100644
index 0000000..8e8fcf2
--- /dev/null
+++ b/Modules/Compiler/XLClang-C.cmake
@@ -0,0 +1,17 @@
+include(Compiler/XLClang)
+__compiler_xlclang(C)
+
+if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 13.1.1)
+  set(CMAKE_C90_STANDARD_COMPILE_OPTION  "-std=c89")
+  set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu89")
+  set(CMAKE_C99_STANDARD_COMPILE_OPTION  "-std=c99")
+  set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-std=gnu99")
+  set(CMAKE_C11_STANDARD_COMPILE_OPTION  "-qlanglvl=extc1x")
+  set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-qlanglvl=extc1x")
+  if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 13.1.2)
+    set(CMAKE_C11_STANDARD_COMPILE_OPTION  "-std=c11")
+    set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11")
+  endif ()
+endif()
+
+__compiler_check_default_language_standard(C 13.1.1 99)
diff --git a/Modules/Compiler/XLClang-CXX-DetermineCompiler.cmake b/Modules/Compiler/XLClang-CXX-DetermineCompiler.cmake
new file mode 100644
index 0000000..4d89921
--- /dev/null
+++ b/Modules/Compiler/XLClang-CXX-DetermineCompiler.cmake
@@ -0,0 +1,8 @@
+set(_compiler_id_pp_test "defined(__ibmxl__) && defined(__clang__)")
+
+set(_compiler_id_version_compute "
+# define @PREFIX@COMPILER_VERSION_MAJOR @MACRO_DEC@(__ibmxl_version__)
+# define @PREFIX@COMPILER_VERSION_MINOR @MACRO_DEC@(__ibmxl_release__)
+# define @PREFIX@COMPILER_VERSION_PATCH @MACRO_DEC@(__ibmxl_modification__)
+# define @PREFIX@COMPILER_VERSION_TWEAK @MACRO_DEC@(__ibmxl_ptf_fix_level__)
+")
diff --git a/Modules/Compiler/XLClang-CXX.cmake b/Modules/Compiler/XLClang-CXX.cmake
new file mode 100644
index 0000000..f535ebc
--- /dev/null
+++ b/Modules/Compiler/XLClang-CXX.cmake
@@ -0,0 +1,20 @@
+include(Compiler/XLClang)
+__compiler_xlclang(CXX)
+
+if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 13.1.1)
+  set(CMAKE_CXX98_STANDARD_COMPILE_OPTION  "")
+  set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "")
+  set(CMAKE_CXX11_STANDARD_COMPILE_OPTION  "-qlanglvl=extended0x")
+  set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-qlanglvl=extended0x")
+  if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 13.1.2)
+    set(CMAKE_CXX11_STANDARD_COMPILE_OPTION  "-std=c++11")
+    set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11")
+    set(CMAKE_CXX14_STANDARD_COMPILE_OPTION  "-std=c++1y")
+    set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++1y")
+  endif ()
+endif()
+
+__compiler_check_default_language_standard(CXX 13.1.1 98)
+
+set(CMAKE_CXX_COMPILE_OBJECT
+  "<CMAKE_CXX_COMPILER> -x c++ <DEFINES> <INCLUDES> <FLAGS> -o <OBJECT> -c <SOURCE>")
diff --git a/Modules/Compiler/XLClang.cmake b/Modules/Compiler/XLClang.cmake
new file mode 100644
index 0000000..cdf0fdc
--- /dev/null
+++ b/Modules/Compiler/XLClang.cmake
@@ -0,0 +1,22 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+
+# This module is shared by multiple languages; use include blocker.
+if(__COMPILER_XLCLANG)
+  return()
+endif()
+set(__COMPILER_XLCLANG 1)
+
+include(Compiler/XL)
+
+macro(__compiler_xlclang lang)
+  __compiler_xl(${lang})
+
+  # Feature flags.
+  set(CMAKE_${lang}_VERBOSE_FLAG "-V")
+  set(CMAKE_${lang}_COMPILE_OPTIONS_PIC "-fPIC")
+  set(CMAKE_${lang}_COMPILE_OPTIONS_PIE "-fPIC")
+  set(CMAKE_${lang}_RESPONSE_FILE_FLAG "@")
+  set(CMAKE_${lang}_RESPONSE_FILE_LINK_FLAG "@")
+endmacro()
diff --git a/Modules/Platform/AIX-XLClang-C.cmake b/Modules/Platform/AIX-XLClang-C.cmake
new file mode 100644
index 0000000..f0bedc5
--- /dev/null
+++ b/Modules/Platform/AIX-XLClang-C.cmake
@@ -0,0 +1,2 @@
+include(Platform/AIX-XLClang)
+__aix_compiler_xlclang(C)
diff --git a/Modules/Platform/AIX-XLClang-CXX.cmake b/Modules/Platform/AIX-XLClang-CXX.cmake
new file mode 100644
index 0000000..cceb576
--- /dev/null
+++ b/Modules/Platform/AIX-XLClang-CXX.cmake
@@ -0,0 +1,2 @@
+include(Platform/AIX-XLClang)
+__aix_compiler_xlclang(CXX)
diff --git a/Modules/Platform/AIX-XLClang.cmake b/Modules/Platform/AIX-XLClang.cmake
new file mode 100644
index 0000000..c932095
--- /dev/null
+++ b/Modules/Platform/AIX-XLClang.cmake
@@ -0,0 +1,15 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+
+# This module is shared by multiple languages; use include blocker.
+if(__AIX_COMPILER_XLCLANG)
+  return()
+endif()
+set(__AIX_COMPILER_XLCLANG 1)
+
+include(Platform/AIX-XL)
+
+macro(__aix_compiler_xlclang lang)
+  __aix_compiler_xl(${lang})
+endmacro()
-- 
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