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Flag vector counts#7912
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This flag is used to indicate that an integer constant in the IR is the result of replacing the Vector<T>.Count intrinsic. This can be used to drive heuristics focusing more aggressive optimizations on SIMD code.
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@dotnet/jit-contrib PTAL. This is a step on the way to #7843. |
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LGTM |
sivarv
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Oct 31, 2016
| if (limitOp->gtOper == GT_CNS_INT) | ||
| { | ||
| optLoopTable[loopInd].lpFlags |= LPFLG_CONST_LIMIT; | ||
| if (limitOp->gtFlags & GTF_ICON_SIMD_COUNT) |
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CC: (limitOp->gtFlags & GTF_ICON_SIMD_COUNT) != 0
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Looks good. |
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This flag identifies loops whose limit was a Vector<T>.Count expression. This can be used in heuristics to target more aggressive optimizations at SIMD code.
JosephTremoulet
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Mark immediates which came from the Vector.Count intrinsic, and loops that have such as their limit.