diff options
Diffstat (limited to 'llvm/lib/Analysis/ValueTracking.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ValueTracking.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp index ca48cfe..869a94d 100644 --- a/llvm/lib/Analysis/ValueTracking.cpp +++ b/llvm/lib/Analysis/ValueTracking.cpp @@ -2824,6 +2824,12 @@ static bool isKnownNonZeroFromOperator(const Operator *I, return isNonZeroAdd(DemandedElts, Depth, Q, BitWidth, II->getArgOperand(0), II->getArgOperand(1), /*NSW=*/true, /* NUW=*/false); + // umin/smin/smax/smin of all non-zero elements is always non-zero. + case Intrinsic::vector_reduce_umax: + case Intrinsic::vector_reduce_umin: + case Intrinsic::vector_reduce_smax: + case Intrinsic::vector_reduce_smin: + return isKnownNonZero(II->getArgOperand(0), Depth, Q); case Intrinsic::umax: case Intrinsic::uadd_sat: return isKnownNonZero(II->getArgOperand(1), DemandedElts, Depth, Q) || |