Reenable building with -fvisibility-inlines-hidden.

This was disabled years ago because of a bug in GCC 4.1, which is
on our "broken compilers" list for other reasons. Saving ~500k
on a clang binary (Release+Asserts) is well worth dropping support
for it.

We currently disable it for shared libraries (where it would bring
the biggest win) because clang is broken (PR11642).

IMPORTANT: If you're doing incremental builds you may get tons of
linker warnings. make clean will fix them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147182 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2011-12-22 21:41:32 +00:00
parent b975c27adc
commit 01442cd1b9

View File

@ -319,9 +319,12 @@ ifeq ($(ENABLE_PROFILING),1)
KEEP_SYMBOLS := 1 KEEP_SYMBOLS := 1
endif endif
#ifeq ($(ENABLE_VISIBILITY_INLINES_HIDDEN),1) ifeq ($(ENABLE_VISIBILITY_INLINES_HIDDEN),1)
# CXX.Flags += -fvisibility-inlines-hidden # FIXME: clang's -fvisibility-inlines-hidden is broken for shared libs. PR11642.
#endif ifneq ($(ENABLE_SHARED),1)
CXX.Flags += -fvisibility-inlines-hidden
endif
endif
ifdef ENABLE_EXPENSIVE_CHECKS ifdef ENABLE_EXPENSIVE_CHECKS
# GNU libstdc++ uses RTTI if you define _GLIBCXX_DEBUG, which we did above. # GNU libstdc++ uses RTTI if you define _GLIBCXX_DEBUG, which we did above.