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b4dc084389
This patch switches SCCP to use ValueLatticeElement for lattice values, instead of the local LatticeVal, as first step to enable integer range support. This patch does not make use of constant ranges for additional operations and the only difference for now is that integer constants are represented by single element ranges. To preserve the existing behavior, the following helpers are used * isConstant(LV): returns true when LV is either a constant or a constant range with a single element. This should return true in the same cases where LV.isConstant() returned true previously. * getConstant(LV): returns a constant if LV is either a constant or a constant range with a single element. This should return a constant in the same cases as LV.getConstant() previously. * getConstantInt(LV): same as getConstant, but additionally casted to ConstantInt. Reviewers: davide, efriedma, mssimpso Reviewed By: efriedma Differential Revision: https://reviews.llvm.org/D60582 |
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| .. | ||
| AggressiveInstCombine | ||
| CFGuard | ||
| Coroutines | ||
| Hello | ||
| InstCombine | ||
| Instrumentation | ||
| IPO | ||
| ObjCARC | ||
| Scalar | ||
| Utils | ||
| Vectorize | ||
| CMakeLists.txt | ||
| LLVMBuild.txt | ||