[llvm] [SelectionDAG] Remove arbitrary patch size check (PR #85590)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-selectiondag

Author: AtariDreams (AtariDreams)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/85590.diff


1 Files Affected:

- (modified) llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp (-9) 


``````````diff
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 2670f48aebcff5..e87a20b7ffe77e 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -4086,11 +4086,6 @@ KnownBits SelectionDAG::computeKnownBits(SDValue Op, const APInt &DemandedElts,
   case ISD::INTRINSIC_WO_CHAIN:
   case ISD::INTRINSIC_W_CHAIN:
   case ISD::INTRINSIC_VOID:
-    // TODO: Probably okay to remove after audit; here to reduce change size
-    // in initial enablement patch for scalable vectors
-    if (Op.getValueType().isScalableVector())
-      break;
-
     // Allow the target to implement this method for its nodes.
     TLI->computeKnownBitsForTargetNode(Op, Known, DemandedElts, *this, Depth);
     break;
@@ -4933,14 +4928,10 @@ unsigned SelectionDAG::ComputeNumSignBits(SDValue Op, const APInt &DemandedElts,
       Opcode == ISD::INTRINSIC_WO_CHAIN ||
       Opcode == ISD::INTRINSIC_W_CHAIN ||
       Opcode == ISD::INTRINSIC_VOID) {
-    // TODO: This can probably be removed once target code is audited.  This
-    // is here purely to reduce patch size and review complexity.
-    if (!VT.isScalableVector()) {
       unsigned NumBits =
         TLI->ComputeNumSignBitsForTargetNode(Op, DemandedElts, *this, Depth);
       if (NumBits > 1)
         FirstAnswer = std::max(FirstAnswer, NumBits);
-    }
   }
 
   // Finally, if we can prove that the top bits of the result are 0's or 1's,

``````````

</details>


https://github.com/llvm/llvm-project/pull/85590