[PATCH] D33908: [cmake] Enable reverse iteration by default through build macro
Mandeep Singh Grang via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Jun 5 17:36:46 PDT 2017
This revision was automatically updated to reflect the committed changes.
Closed by commit rL304757: [cmake] Enable reverse iteration by default through build macro (authored by mgrang).
Changed prior to commit:
https://reviews.llvm.org/D33908?vs=101442&id=101489#toc
Repository:
rL LLVM
https://reviews.llvm.org/D33908
Files:
llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
llvm/trunk/include/llvm/ADT/SmallPtrSet.h
llvm/trunk/include/llvm/Config/abi-breaking.h.cmake
Index: llvm/trunk/include/llvm/ADT/SmallPtrSet.h
===================================================================
--- llvm/trunk/include/llvm/ADT/SmallPtrSet.h
+++ llvm/trunk/include/llvm/ADT/SmallPtrSet.h
@@ -31,8 +31,12 @@
#if LLVM_ENABLE_ABI_BREAKING_CHECKS
template <class T = void> struct ReverseIterate { static bool value; };
+#if LLVM_ENABLE_REVERSE_ITERATION
+template <class T> bool ReverseIterate<T>::value = true;
+#else
template <class T> bool ReverseIterate<T>::value = false;
#endif
+#endif
/// SmallPtrSetImplBase - This is the common code shared among all the
/// SmallPtrSet<>'s, which is almost everything. SmallPtrSet has two modes, one
Index: llvm/trunk/include/llvm/Config/abi-breaking.h.cmake
===================================================================
--- llvm/trunk/include/llvm/Config/abi-breaking.h.cmake
+++ llvm/trunk/include/llvm/Config/abi-breaking.h.cmake
@@ -15,6 +15,9 @@
/* Define to enable checks that alter the LLVM C++ ABI */
#cmakedefine01 LLVM_ENABLE_ABI_BREAKING_CHECKS
+/* Define to enable reverse iteration of unordered llvm containers */
+#cmakedefine01 LLVM_ENABLE_REVERSE_ITERATION
+
/* Allow selectively disabling link-time mismatch checking so that header-only
ADT content from LLVM can be used without linking libSupport. */
#if !LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING
Index: llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
===================================================================
--- llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
+++ llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
@@ -101,6 +101,10 @@
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)
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