[llvm] 85f7ec1 - [RISCV] Remove unneeded unmasked patterns for vcpop_v and riscv_vfirst_vl. (#127435)

[via llvm-commits]

Author: Craig Topper
Date: 2025-02-17T09:50:01-08:00
New Revision: 85f7ec12b86494f98f1ea28e51b38d52f2aecc8b

URL: https://github.com/llvm/llvm-project/commit/85f7ec12b86494f98f1ea28e51b38d52f2aecc8b
DIFF: https://github.com/llvm/llvm-project/commit/85f7ec12b86494f98f1ea28e51b38d52f2aecc8b.diff

LOG: [RISCV] Remove unneeded unmasked patterns for vcpop_v and riscv_vfirst_vl. (#127435)

The pseudos had RISCVMaskedPseudo add in #115162 so I we are able to convert the
masked form to unmasked form automatically.

Added: 
    

Modified: 
    llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td

Removed: 
    


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diff  --git a/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td b/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
index c914dc2ffbcd3..ffa3d3982647d 100644
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
@@ -2701,20 +2701,12 @@ foreach mti = AllMasks in {
                    VR:$rs, VR:$rs, GPR:$vl, mti.Log2SEW)>;
 
     // 15.2 Vector count population in mask vcpop.m
-    def : Pat<(XLenVT (riscv_vcpop_vl (mti.Mask VR:$rs2), (mti.Mask true_mask),
-                                      VLOpFrag)),
-              (!cast<Instruction>("PseudoVCPOP_M_" # mti.BX)
-                   VR:$rs2, GPR:$vl, mti.Log2SEW)>;
     def : Pat<(XLenVT (riscv_vcpop_vl (mti.Mask VR:$rs2), (mti.Mask VMV0:$vm),
                                       VLOpFrag)),
               (!cast<Instruction>("PseudoVCPOP_M_" # mti.BX # "_MASK")
                    VR:$rs2, (mti.Mask VMV0:$vm), GPR:$vl, mti.Log2SEW)>;
 
     // 15.3 vfirst find-first-set mask bit
-    def : Pat<(XLenVT (riscv_vfirst_vl (mti.Mask VR:$rs2), (mti.Mask true_mask),
-                                      VLOpFrag)),
-              (!cast<Instruction>("PseudoVFIRST_M_" # mti.BX)
-                   VR:$rs2, GPR:$vl, mti.Log2SEW)>;
     def : Pat<(XLenVT (riscv_vfirst_vl (mti.Mask VR:$rs2), (mti.Mask VMV0:$vm),
                                       VLOpFrag)),
               (!cast<Instruction>("PseudoVFIRST_M_" # mti.BX # "_MASK")