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authorJohn McCall <rjmccall@apple.com>2010-02-19 02:45:38 +0000
committerJohn McCall <rjmccall@apple.com>2010-02-19 02:45:38 +0000
commitd0c2ec44e093011256b6a0f57d455f36dffdea70 (patch)
tree72e26b204c48c118931d9378ecf49966462d8b13 /lib/Driver/Tools.cpp
parentba7bc5584b8d46f4e8deb3a9d363256908fa86ea (diff)
Enable -mconstructor-aliases by default on non-darwin platforms.
The linker bug holding this back is Darwin-specific. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96655 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Driver/Tools.cpp')
-rw-r--r--lib/Driver/Tools.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index e65abaedd5..d2391b391c 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -799,6 +799,11 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
CmdArgs.push_back("Arguments");
}
+ // Enable -mconstructor-aliases except on darwin, where we have to
+ // work around a linker bug; see <rdar://problem/7651567>.
+ if (getToolChain().getTriple().getOS() != llvm::Triple::Darwin)
+ CmdArgs.push_back("-mconstructor-aliases");
+
// This is a coarse approximation of what llvm-gcc actually does, both
// -fasynchronous-unwind-tables and -fnon-call-exceptions interact in more
// complicated ways.