From 5b0ac99c9690d7534ade82848c207e202883831b Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Tue, 1 Nov 2005 00:12:36 +0000 Subject: [PATCH] Add a flag to enable a darwin linker optimization git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24130 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/PowerPC/PPCAsmPrinter.cpp | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/lib/Target/PowerPC/PPCAsmPrinter.cpp b/lib/Target/PowerPC/PPCAsmPrinter.cpp index e4cfd63aa32..4d97ef3a9e4 100644 --- a/lib/Target/PowerPC/PPCAsmPrinter.cpp +++ b/lib/Target/PowerPC/PPCAsmPrinter.cpp @@ -567,6 +567,13 @@ bool DarwinAsmPrinter::doFinalization(Module &M) { << "\t.long\t" << *i << '\n'; } + // Funny Darwin hack: This flag tells the linker that no global symbols + // contain code that falls through to other global symbols (e.g. the obvious + // implementation of multiple entry points). If this doesn't occur, the + // linker can safely perform dead code stripping. Since LLVM never generates + // code that does this, it is always safe to set. + O << "\t.subsections_via_symbols\n"; + AsmPrinter::doFinalization(M); return false; // success } @@ -711,7 +718,6 @@ bool AIXAsmPrinter::doFinalization(Module &M) { O << "_section_.text:\n" << "\t.csect .data[RW],3\n" << "\t.llong _section_.text\n"; - delete Mang; return false; // success }