[RISCV] Remove two unmasked RVV patterns

These can be selected to unmasked from masked instructions by the
post-process DAG step.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D125239

diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td b/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
index 8cafa97..971fb55 100644 (file)
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
@@ -981,11 +981,6 @@ foreach vtiTowti = AllWidenableIntVectors in {
   defvar vti = vtiTowti.Vti;
   defvar wti = vtiTowti.Wti;
   def : Pat<(vti.Vector (riscv_trunc_vector_vl (wti.Vector wti.RegClass:$rs1),
-                                               (vti.Mask true_mask),
-                                               VLOpFrag)),
-            (!cast<Instruction>("PseudoVNSRL_WX_"#vti.LMul.MX)
-                wti.RegClass:$rs1, X0, GPR:$vl, vti.Log2SEW)>;
-  def : Pat<(vti.Vector (riscv_trunc_vector_vl (wti.Vector wti.RegClass:$rs1),
                                                (vti.Mask V0),
                                                VLOpFrag)),
             (!cast<Instruction>("PseudoVNSRL_WX_"#vti.LMul.MX#"_MASK")
@@ -1588,12 +1583,6 @@ foreach fvti = AllFloatVectors in {
                   (fwti.Mask V0), GPR:$vl, fvti.Log2SEW, TAIL_AGNOSTIC)>;
 
     def : Pat<(fvti.Vector (riscv_fncvt_rod_vl (fwti.Vector fwti.RegClass:$rs1),
-                                               (fwti.Mask true_mask),
-                                               VLOpFrag)),
-              (!cast<Instruction>("PseudoVFNCVT_ROD_F_F_W_"#fvti.LMul.MX)
-                  fwti.RegClass:$rs1, GPR:$vl, fvti.Log2SEW)>;
-
-    def : Pat<(fvti.Vector (riscv_fncvt_rod_vl (fwti.Vector fwti.RegClass:$rs1),
                                                (fwti.Mask V0),
                                                VLOpFrag)),
               (!cast<Instruction>("PseudoVFNCVT_ROD_F_F_W_"#fvti.LMul.MX#"_MASK")