llvm/lib/Transforms
John McCall d7c1086201 Implement and document the llvm.eh.resume intrinsic, which is
transformed by the inliner into a branch to the enclosing landing pad
(when inlined through an invoke).  If not so optimized, it is lowered
DWARF EH preparation into a call to _Unwind_Resume (or _Unwind_SjLj_Resume
as appropriate).  Its chief advantage is that it takes both the
exception value and the selector value as arguments, meaning that there
is zero effort in recovering these;  however, the frontend is required
to pass these down, which is not actually particularly difficult.

Also document the behavior of landing pads a bit better, and make it
clearer that it's okay that personality functions don't always land at
landing pads.  This is just a fact of life.  Don't write optimizations that
rely on pushing things over an unwind edge.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132253 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-28 07:45:59 +00:00
..
Hello Since the Hello pass is built as a loadable dynamic library, don't try to convert it to new-style registration yet. 2010-10-07 00:31:16 +00:00
InstCombine InstCombine: Make switch folding with equality compares more aggressive by trying instsimplify on the arm where we know the compared value. 2011-05-27 13:00:16 +00:00
Instrumentation Conditionalize the format of the GCOV files by target type. Darwin uses the 4.2 2011-05-17 23:05:13 +00:00
IPO fix PR9856, an incorrectly conservative assertion: a global can be 2011-05-22 07:15:13 +00:00
Scalar Refactor getActionType and getTypeToTransformTo ; place all of the 'decision' 2011-05-27 21:03:13 +00:00
Utils Implement and document the llvm.eh.resume intrinsic, which is 2011-05-28 07:45:59 +00:00
CMakeLists.txt Move library stuff out of the toplevel CMakeLists.txt file. 2011-02-18 22:06:14 +00:00
Makefile Revert r100896 and around - this breaks the only mingw32 buildbot we have. 2010-04-15 19:51:42 +00:00