[PATCH] D144729: [AMDGPU] Select v_sat_pk_u8_i16

[Jay Foad via Phabricator via llvm-commits]

foad added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/AMDGPUInstructions.td:297
+  [
+    (i16 (smax (smin $src, (i16 255)), (i16 0))),
+    (i16 (AMDGPUsmed3 $src, (i16 0), (i16 255)))
----------------
Pierre-vh wrote:
> foad wrote:
> > Do you also need to match them the other way round: `(smin (smax $src, (i16 0)), (i16 255))`?
> I thought so too, but the other way around is always folded to smed3 it seems
That raises the question, why aren't both ways folded to smed3?


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  https://reviews.llvm.org/D144729/new/

https://reviews.llvm.org/D144729