Reid Kleckner 49ab3a626a EH: Prune unreachable resume instructions during Dwarf EH preparation ... Today a simple function that only catches exceptions and doesn't run destructor cleanups ends up containing a dead call to _Unwind_Resume (PR20300). We can't remove these dead resume instructions during normal optimization because inlining might introduce additional landingpads that do have cleanups to run. Instead we can do this during EH preparation, which is guaranteed to run after inlining. Fixes PR20300. Reviewers: majnemer Differential Revision: http://reviews.llvm.org/D7744 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229944 91177308-0d34-0410-b5e6-96231b3b80d8		2015-02-20 01:00:19 +00:00
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llvm	EH: Prune unreachable resume instructions during Dwarf EH preparation	2015-02-20 01:00:19 +00:00
llvm-c	[BDCE] Add a bit-tracking DCE pass	2015-02-17 01:36:59 +00:00