[llvm] Expanding the Histogram Intrinsic (PR #127399)

[Graham Hunter via llvm-commits]

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@@ -20295,6 +20295,9 @@ More update operation types may be added in the future.
 
     declare void @llvm.experimental.vector.histogram.add.v8p0.i32(<8 x ptr> %ptrs, i32 %inc, <8 x i1> %mask)
     declare void @llvm.experimental.vector.histogram.add.nxv2p0.i64(<vscale x 2 x ptr> %ptrs, i64 %inc, <vscale x 2 x i1> %mask)
+    declare void @llvm.experimental.vector.histogram.uadd.sat.v8p0.i32(<8 x ptr> %ptrs, i32 %inc, <8 x i1> %mask)
+    declare void @llvm.experimental.vector.histogram.umax.v8p0.i32(<8 x ptr> %ptrs, i32 %val, <8 x i1> %mask)
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huntergr-arm wrote:

I'm curious to know what asm you intend to generate for min/max; seems to me you'd need to loop over matching element sets?

https://github.com/llvm/llvm-project/pull/127399