Lay the groundwork for my upcoming ilist sentinel shrinking patch
by defining a LLVM_COMPACT_SENTINELS symbol to 0 or 1 in config.h.
I'm asking for 3 favors:
- may an autofoo expert look at this and suggest improvements?
- may a cmake expert suggest analogous functionality for config.h?
- may somebody with the right autofoo mix regenerate configure? (mine is too new)
Thanks!
--This line, and those below, will be ignored--
M configure.ac
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78628 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 063faa6..149ddd1 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -312,6 +312,17 @@
AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
fi
+dnl LLVM_COMPACT_SENTINELS : can be used to shrink ilist's end iterators and disable certain checks on them:
+if test ${ENABLE_OPTIMIZED},${DISABLE_ASSERTIONS} = "ENABLE_OPTIMIZED=1,DISABLE_ASSERTIONS=1" ; then
+ AC_SUBST(LLVM_COMPACT_SENTINELS,[1])
+else
+ AC_SUBST(LLVM_COMPACT_SENTINELS,[0])
+fi
+
+AC_DEFINE_UNQUOTED([LLVM_COMPACT_SENTINELS],$LLVM_COMPACT_SENTINELS,
+ [Define to 1 for ilist sentinel compaction])
+
+
dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
--enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")