Update GetElement and ToScalar to lower IND, LCL_FLD, and LCL_VAR spe…

…cially (#86400) * Update GetElement and ToScalar to lower IND, LCL_FLD, and LCL_VAR specially * Ensure GetElement still correctly handles too large indices * Only optimize to LCL_FLD for lvDoNotEnregister * Account for an extreme edge case in offset overflow * Use simdSize rather than maxSIMDStructBytes
dotnet · May 23, 2023 · b066a16 · b066a16
1 parent 75250c2
commit b066a16
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Showing 2 changed files with 256 additions and 71 deletions.
diff --git a/src/coreclr/jit/lower.h b/src/coreclr/jit/lower.h
@@ -356,8 +356,8 @@ class Lowering final : public Phase
     GenTree* LowerHWIntrinsicDot(GenTreeHWIntrinsic* node);
 #if defined(TARGET_XARCH)
     void LowerFusedMultiplyAdd(GenTreeHWIntrinsic* node);
-    void LowerHWIntrinsicToScalar(GenTreeHWIntrinsic* node);
-    void LowerHWIntrinsicGetElement(GenTreeHWIntrinsic* node);
+    GenTree* LowerHWIntrinsicToScalar(GenTreeHWIntrinsic* node);
+    GenTree* LowerHWIntrinsicGetElement(GenTreeHWIntrinsic* node);
     GenTree* LowerHWIntrinsicCndSel(GenTreeHWIntrinsic* node);
     GenTree* LowerHWIntrinsicWithElement(GenTreeHWIntrinsic* node);
     GenTree* TryLowerAndOpToResetLowestSetBit(GenTreeOp* andNode);