Recognize the Texas Instruments DSP compiler (#11645)

The TI DSP compiler predefines "__TI_COMPILER_VERSION__".  Use this to
identify the C and C++ compilers.  For assembler language the C compiler
executable is used:

  $ cl6x -h
  TMS320C6x C/C++ Compiler v6.1.11
  Tools Copyright (c) 1996-2009 Texas Instruments Incorporated

Use this command-line option and output to recognize the assembler.

Modules/CMakeCCompilerId.c.in

@@ -45,6 +45,9 @@
 #elif defined(_CRAYC)
 # define COMPILER_ID "Cray"
 
+#elif defined(__TI_COMPILER_VERSION__)
+# define COMPILER_ID "TI_DSP"
+
 #elif defined(__GNUC__)
 # define COMPILER_ID "GNU"
 

Modules/CMakeCXXCompilerId.cpp.in

@@ -47,6 +47,9 @@
 #elif defined(_CRAYC)
 # define COMPILER_ID "Cray"
 
+#elif defined(__TI_COMPILER_VERSION__)
+# define COMPILER_ID "TI_DSP"
+
 #elif defined(__GNUC__)
 # define COMPILER_ID "GNU"
 

Modules/CMakeDetermineASMCompiler.cmake

@@ -64,6 +64,9 @@ IF(NOT CMAKE_ASM${ASM_DIALECT}_COMPILER_ID)
   LIST(APPEND CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDORS GNU )
   SET(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_FLAGS_GNU "--version")
   SET(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_REGEX_GNU "GNU assembler")
+  LIST(APPEND CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDORS TI_DSP )
+  SET(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_FLAGS_TI_DSP "-h")
+  SET(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_REGEX_TI_DSP "Texas Instruments")
 
   INCLUDE(CMakeDetermineCompilerId)
   CMAKE_DETERMINE_COMPILER_ID_VENDOR(ASM${ASM_DIALECT})