[llvm] 0b2648b - [RISCV] Add CoveredBySubRegs to the X*_PD register class.

[Craig Topper via llvm-commits]

Author: Craig Topper
Date: 2023-02-02T10:03:33-08:00
New Revision: 0b2648bac1c4c99aeffac5529aa1abb932eb4411

URL: https://github.com/llvm/llvm-project/commit/0b2648bac1c4c99aeffac5529aa1abb932eb4411
DIFF: https://github.com/llvm/llvm-project/commit/0b2648bac1c4c99aeffac5529aa1abb932eb4411.diff

LOG: [RISCV] Add CoveredBySubRegs to the X*_PD register class.

Not completely sure what effect this has, but it's certainly true.

Reviewed By: asb

Differential Revision: https://reviews.llvm.org/D143103

Added: 
    

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

Removed: 
    


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diff  --git a/llvm/lib/Target/RISCV/RISCVRegisterInfo.td b/llvm/lib/Target/RISCV/RISCVRegisterInfo.td
index adedfe53c5a64..301f2ad77d00c 100644
--- a/llvm/lib/Target/RISCV/RISCVRegisterInfo.td
+++ b/llvm/lib/Target/RISCV/RISCVRegisterInfo.td
@@ -547,6 +547,7 @@ let RegAltNameIndices = [ABIRegAltName] in {
                                           [Reg, RegP1],
                                           Reg.AltNames> {
       let SubRegIndices = [sub_32, sub_32_hi];
+      let CoveredBySubRegs = 1;
     }
   }
 }