llvm 12.0.0

2021-06-05 00:05:01 +03:00
parent 7f33ace299
commit cf574378fa
5 changed files with 156 additions and 19 deletions
@@ -0,0 +1,22 @@
+diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake
+--- a/llvm/cmake/modules/HandleLLVMOptions.cmake
+++ b/llvm/cmake/modules/HandleLLVMOptions.cmake
+@@ -305,6 +305,17 @@
+     # On Windows all code is PIC. MinGW warns if -fPIC is used.
+   else()
+     add_flag_or_print_warning("-fPIC" FPIC)
+    # Enable interprocedural optimizations for non-inline functions which would
+    # otherwise be disabled due to GCC -fPIC's default.
+    #
+    # Note: Clang allows IPO for -fPIC so this optimization is less effective.
+    # Older Clang may support -fno-semantic-interposition but it used local
+    # aliases to optimize global variables, which is incompatible with copy
+    # relocations due to -fno-pic.
+    if (CMAKE_COMPILER_IS_GNUCXX OR (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND
+        CMAKE_CXX_COMPILER_VERSION GREATER_EQUAL 13))
+      add_flag_if_supported("-fno-semantic-interposition" FNO_SEMANTIC_INTERPOSITION)
+    endif()
+   endif()
+   # GCC for MIPS can miscompile LLVM due to PR37701.
+   if(CMAKE_COMPILER_IS_GNUCXX AND LLVM_NATIVE_ARCH STREQUAL "Mips" AND
+