[PATCH] D114580: [AArch64][SVE] Mark fixed-type FP extending/truncating loads/stores as custom

Paul Walker via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Nov 26 03:49:00 PST 2021


paulwalker-arm accepted this revision.
paulwalker-arm added inline comments.
This revision is now accepted and ready to land.


================
Comment at: llvm/lib/Target/AArch64/AArch64ISelLowering.cpp:18593-18594
   EVT ContainerVT = getContainerForFixedLengthVector(DAG, VT);
+  EVT ExtendVT = ContainerVT.changeVectorElementType(
+      Load->getMemoryVT().getVectorElementType());
+  EVT LoadVT = ContainerVT;
----------------
You could move this into the if block where it's used.


================
Comment at: llvm/lib/Target/AArch64/AArch64ISelLowering.cpp:18689-18690
   EVT ContainerVT = getContainerForFixedLengthVector(DAG, VT);
+  EVT ExtendVT = ContainerVT.changeVectorElementType(
+      Store->getMemoryVT().getVectorElementType());
+  EVT MemVT = Store->getMemoryVT();
----------------
Perhaps `TruncVT`? Plus as above this could be moved into the if block where it is used.


================
Comment at: llvm/lib/Target/AArch64/AArch64ISelLowering.cpp:18696
+
+  if (ContainerVT.getVectorElementType().isFloatingPoint() &&
+      Store->isTruncatingStore()) {
----------------
As above this can be just `VT`.


Repository:
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https://reviews.llvm.org/D114580



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