vendor/llvm/llvm-trunk-r305145

2 files changed, 44 insertions, 13 deletions

diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake
index 3dd16d51f0b7..c3325db11788 100644
--- a/cmake/modules/HandleLLVMOptions.cmake
+++ b/cmake/modules/HandleLLVMOptions.cmake
@@ -101,6 +101,10 @@ else()
   message(FATAL_ERROR "Unknown value for LLVM_ABI_BREAKING_CHECKS: \"${LLVM_ABI_BREAKING_CHECKS}\"!")
 endif()
 
+if( LLVM_REVERSE_ITERATION )
+  set( LLVM_ENABLE_REVERSE_ITERATION 1 )
+endif()
+
 if(WIN32)
   set(LLVM_HAVE_LINK_VERSION_SCRIPT 0)
   if(CYGWIN)
@@ -381,6 +385,9 @@ elseif( LLVM_COMPILER_IS_GCC_COMPATIBLE )
   if (LLVM_ENABLE_CXX1Y)
     check_cxx_compiler_flag("-std=c++1y" CXX_SUPPORTS_CXX1Y)
     append_if(CXX_SUPPORTS_CXX1Y "-std=c++1y" CMAKE_CXX_FLAGS)
+  elseif(LLVM_ENABLE_CXX1Z)
+    check_cxx_compiler_flag("-std=c++1z" CXX_SUPPORTS_CXX1Z)
+    append_if(CXX_SUPPORTS_CXX1Z "-std=c++1z" CMAKE_CXX_FLAGS)
   else()
     check_cxx_compiler_flag("-std=c++11" CXX_SUPPORTS_CXX11)
     if (CXX_SUPPORTS_CXX11)
diff --git a/cmake/modules/TableGen.cmake b/cmake/modules/TableGen.cmake
index da0858e54d44..17ae1c9e7717 100644
--- a/cmake/modules/TableGen.cmake
+++ b/cmake/modules/TableGen.cmake
@@ -30,19 +30,43 @@ function(tablegen project ofn)
     endif()
   endif()
 
-  add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
-    # Generate tablegen output in a temporary file.
-    COMMAND ${${project}_TABLEGEN_EXE} ${ARGN} -I ${CMAKE_CURRENT_SOURCE_DIR}
-    ${LLVM_TABLEGEN_FLAGS} 
-    ${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
-    -o ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
-    # The file in LLVM_TARGET_DEFINITIONS may be not in the current
-    # directory and local_tds may not contain it, so we must
-    # explicitly list it here:
-    DEPENDS ${${project}_TABLEGEN_TARGET} ${local_tds} ${global_tds}
-    ${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
-    COMMENT "Building ${ofn}..."
-    )
+  # We need both _TABLEGEN_TARGET and _TABLEGEN_EXE in the  DEPENDS list
+  # (both the target and the file) to have .inc files rebuilt on
+  # a tablegen change, as cmake does not propagate file-level dependencies
+  # of custom targets. See the following ticket for more information:
+  # https://cmake.org/Bug/view.php?id=15858
+  # We could always have just one dependency on both the target and
+  # the file, but these 2 cases would produce cleaner cmake files.
+  if (${${project}_TABLEGEN_TARGET} STREQUAL ${${project}_TABLEGEN_EXE})
+    add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
+      # Generate tablegen output in a temporary file.
+      COMMAND ${${project}_TABLEGEN_EXE} ${ARGN} -I ${CMAKE_CURRENT_SOURCE_DIR}
+      ${LLVM_TABLEGEN_FLAGS}
+      ${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
+      -o ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
+      # The file in LLVM_TARGET_DEFINITIONS may be not in the current
+      # directory and local_tds may not contain it, so we must
+      # explicitly list it here:
+      DEPENDS ${${project}_TABLEGEN_TARGET} ${local_tds} ${global_tds}
+      ${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
+      COMMENT "Building ${ofn}..."
+      )
+  else()
+    add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
+      # Generate tablegen output in a temporary file.
+      COMMAND ${${project}_TABLEGEN_EXE} ${ARGN} -I ${CMAKE_CURRENT_SOURCE_DIR}
+      ${LLVM_TABLEGEN_FLAGS}
+      ${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
+      -o ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
+      # The file in LLVM_TARGET_DEFINITIONS may be not in the current
+      # directory and local_tds may not contain it, so we must
+      # explicitly list it here:
+      DEPENDS ${${project}_TABLEGEN_TARGET} ${${project}_TABLEGEN_EXE}
+        ${local_tds} ${global_tds}
+      ${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
+      COMMENT "Building ${ofn}..."
+      )
+  endif()
   add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
     # Only update the real output file if there are any differences.
     # This prevents recompilation of all the files depending on it if there