diff options
| author | David Majnemer <david.majnemer@gmail.com> | 2016-06-04 23:50:03 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2016-06-04 23:50:03 +0000 |
| commit | 2482e1c01754210b197293ef50bafc72a166df10 (patch) | |
| tree | 25b0bd1832b5a388a42ce9e715e8fc65178b6e07 /llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp | |
| parent | e1979aed0a153d690bfaf4abfd9ed62d63439ecb (diff) | |
| download | bcm5719-llvm-2482e1c01754210b197293ef50bafc72a166df10.tar.gz bcm5719-llvm-2482e1c01754210b197293ef50bafc72a166df10.zip | |
[SimplifyCFG] Don't kill empty cleanuppads with multiple uses
A basic block could contain:
%cp = cleanuppad []
cleanupret from %cp unwind to caller
This basic block is empty and is thus a candidate for removal. However,
there can be other uses of %cp outside of this basic block. This is
only possible in unreachable blocks.
Make our transform more correct by checking that the pad has a single
user before removing the BB.
This fixes PR28005.
llvm-svn: 271816
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp')
0 files changed, 0 insertions, 0 deletions
