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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-06-25 16:00:16 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-06-25 16:00:16 +0000 |
| commit | 9762b26032c8b926fc2a77b30c93c2aacc52a46e (patch) | |
| tree | 061add7fb32cd518ce979c33109dc11d2c52c45b /llvm/docs/AddingConstrainedIntrinsics.rst | |
| parent | 635eb80662d9a2df12d45748df064d000bf96530 (diff) | |
| download | bcm5719-llvm-9762b26032c8b926fc2a77b30c93c2aacc52a46e.tar.gz bcm5719-llvm-9762b26032c8b926fc2a77b30c93c2aacc52a46e.zip | |
[DAGCombine] combineRepeatedFPDivisors - recognize -1.0 / X as a reciprocal
Fixes issue identified by @nemanjai (Nemanja Ivanovic) in D62963 / rL363040 - infinite loop due to GetNegatedExpression fighting combineRepeatedFPDivisors resulting in fneg(fdiv(x,splat)) -> fneg(fmul(x,1.0/splat)) -> fmul(x,-1.0/splat) -> fmul(x,(-1.0 * 1.0)/splat) ......
llvm-svn: 364326
Diffstat (limited to 'llvm/docs/AddingConstrainedIntrinsics.rst')
0 files changed, 0 insertions, 0 deletions
