[PATCH] D48283: [SCEV] Properly solve quadratic equations

[Krzysztof Parzyszek via Phabricator via llvm-commits]

kparzysz updated this revision to Diff 152471.
kparzysz retitled this revision from "[SCEV] Properly solve quadratic equations with coefficients in i1" to "[SCEV] Properly solve quadratic equations".
kparzysz edited the summary of this revision.
kparzysz added a comment.

Rewrite SolveQuadraticEquation.  This fixes https://bugs.llvm.org//show_bug.cgi?id=37211.


Repository:
  rL LLVM

https://reviews.llvm.org/D48283

Files:
  lib/Analysis/ScalarEvolution.cpp
  test/Analysis/ScalarEvolution/solve-quadratic-i1.ll
  test/Analysis/ScalarEvolution/solve-quadratic.ll

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