[PATCH] D96110: [X86] Pass to transform tdpbf16ps intrinsics to scalar operation.

Bing Yu via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Mar 18 22:30:29 PDT 2021


yubing added inline comments.


================
Comment at: llvm/lib/Target/X86/X86LowerAMXIntrinsics.cpp:318-319
+    // calculate idxa, idxb, idxc
+    // %eltc = extractelement <256 x i32> %vec.c.inner.phi, i16 %idxc
+    // %eltcf32 = bitcast i32 %eltc to float
+    // %elta = extractelement <256 x i32> %veca, i16 %idxa
----------------
pengfei wrote:
> Can we create vecC with <256 x float>?
In fact, we are trying to find a bitcast whose operand is <256 x i32>, as shown in line229.


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  https://reviews.llvm.org/D96110/new/

https://reviews.llvm.org/D96110



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