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

[Krzysztof Parzyszek via Phabricator via llvm-commits]

kparzysz added inline comments.


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Comment at: include/llvm/ADT/APInt.h:2193
+/// an *unsigned* overflow (if the values are treated as unsigned).
+/// To find a solution for a signed overflow, use a range with of BW-1.
+///
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sanjoy wrote:
> Do you meant to say that "if the coeffs are positive then use a range of BW-1 to find a solution for signed overflow"?
It should work with with any coefficients.  I will clarify the comments.


Repository:
  rL LLVM

https://reviews.llvm.org/D48283