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| author | Craig Topper <craig.topper@intel.com> | 2017-11-15 05:23:02 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2017-11-15 05:23:02 +0000 |
| commit | f7b86728fa1912fef2da37995a75c1023c838498 (patch) | |
| tree | f553bfea10beb16fe6fe5f02c7a7854be54e257e /llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp | |
| parent | 72a1f98a6760940212677dc5706e3443c2a0f1e5 (diff) | |
| download | bcm5719-llvm-f7b86728fa1912fef2da37995a75c1023c838498.tar.gz bcm5719-llvm-f7b86728fa1912fef2da37995a75c1023c838498.zip | |
[InstCombine] Simplify binops that are only used by a select and are fed by a select with the same condition.
Summary:
This patch optimizes a binop sandwiched between 2 selects with the same condition. Since we know its only used by the select we can propagate the appropriate input value from the earlier select.
As I'm writing this I realize I may need to avoid doing this for division in case the select was protecting a divide by zero?
Reviewers: spatel, majnemer
Reviewed By: majnemer
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39999
llvm-svn: 318267
Diffstat (limited to 'llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp')
0 files changed, 0 insertions, 0 deletions
