[PATCH] D137808: [RISCV] Add OPCFG format and use it for vsetvli. NFC

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: reames, kito-cheng, JojoR.
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Based on D137694 <https://reviews.llvm.org/D137694> and extended


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D137808

Files:
  llvm/lib/Target/RISCV/RISCVInstrFormatsV.td


Index: llvm/lib/Target/RISCV/RISCVInstrFormatsV.td
===================================================================
--- llvm/lib/Target/RISCV/RISCVInstrFormatsV.td
+++ llvm/lib/Target/RISCV/RISCVInstrFormatsV.td
@@ -20,6 +20,7 @@
 def OPIVX : RISCVVFormat<0b100>;
 def OPFVF : RISCVVFormat<0b101>;
 def OPMVX : RISCVVFormat<0b110>;
+def OPCFG : RISCVVFormat<0b111>;
 
 class RISCVMOP<bits<2> val> {
   bits<2> Value = val;
@@ -63,7 +64,7 @@
   let Inst{30} = 1;
   let Inst{29-20} = vtypei{9-0};
   let Inst{19-15} = uimm;
-  let Inst{14-12} = 0b111;
+  let Inst{14-12} = OPCFG.Value;
   let Inst{11-7} = rd;
   let Opcode = OPC_OP_V.Value;
 
@@ -79,7 +80,7 @@
   let Inst{31} = 0;
   let Inst{30-20} = vtypei;
   let Inst{19-15} = rs1;
-  let Inst{14-12} = 0b111;
+  let Inst{14-12} = OPCFG.Value;
   let Inst{11-7} = rd;
   let Opcode = OPC_OP_V.Value;
 
@@ -96,7 +97,7 @@
   let Inst{30-25} = 0b000000;
   let Inst{24-20} = rs2;
   let Inst{19-15} = rs1;
-  let Inst{14-12} = 0b111;
+  let Inst{14-12} = OPCFG.Value;
   let Inst{11-7} = rd;
   let Opcode = OPC_OP_V.Value;
 


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