[llvm-branch-commits] [llvm] [RISC-V][MC][RVY] Add support for RVY loads/stores (PR #177073)

Alexander Richardson via llvm-branch-commits llvm-branch-commits at lists.llvm.org
Sat Jul 18 01:11:36 PDT 2026


================
@@ -264,35 +267,40 @@ let RegAltNameIndices = [ABIRegAltName] in {
   }
 }
 
-def XLenVT : ValueTypeByHwMode<[RV32, RV64],
-                               [i32,  i64]>;
+def XLenVT : ValueTypeByHwMode<[RV32I, RV64I, RV32Y, RV64Y],
+                               [i32,   i64,   i32,   i64]>;
 defvar XLenPairVT = untyped;
 
 // Allow f64 in GPR for ZDINX on RV64.
-def XLenFVT : ValueTypeByHwMode<[RV64],
-                                [f64]>;
-def XLenPairFVT : ValueTypeByHwMode<[RV32],
-                                    [f64]>;
-def XLenPairVecI8VT : ValueTypeByHwMode<[RV32],
+def XLenFVT : ValueTypeByHwMode<[DefaultMode, RV64I, RV64Y],
+                                [/*XLen*/i32, f64,   f64]>;
+def XLenPairFVT : ValueTypeByHwMode<[RV32I, RV32Y],
+                                    [f64,   f64]>;
+def XLenPairVecI8VT : ValueTypeByHwMode<[DefaultMode],
                                         [v8i8]>;
-def XLenPairVecI16VT : ValueTypeByHwMode<[RV32],
+def XLenPairVecI16VT : ValueTypeByHwMode<[DefaultMode],
                                          [v4i16]>;
-def XLenPairVecI32VT : ValueTypeByHwMode<[RV32],
+def XLenPairVecI32VT : ValueTypeByHwMode<[DefaultMode],
                                          [v2i32]>;
----------------
arichardson wrote:

I think this should actually be RV32I, RV32Y but it's been quite a while since I originally made this change so I'll have to double check. These aren't used by RVY yet so I just made the minimal changes to keep tablegen happy. I'll update this to do the right thing. 

https://github.com/llvm/llvm-project/pull/177073


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