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| author | Nick Lewycky <nicholas@mxc.ca> | 2012-01-25 08:27:40 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2012-01-25 08:27:40 +0000 |
| commit | 6977e79526a6342b9408c358bca21c3b0c7e61d5 (patch) | |
| tree | bbd83da702e4e35ee06a813dd4aabb23c9a09a22 /lib/Transforms/Utils/SimplifyCFG.cpp | |
| parent | 8f7fe08fee403994a50bb3c07384453c0d046558 (diff) | |
Support pointer comparisons against constants, when looking at the inline-cost
savings from a pointer argument becoming an alloca. Sometimes callees will even
compare a pointer to null and then branch to an otherwise unreachable block!
Detect these cases and compute the number of saved instructions, instead of
bailing out and reporting no savings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148941 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils/SimplifyCFG.cpp')
0 files changed, 0 insertions, 0 deletions