[llvm] 03bc33c - Revert "[RISCV] Minor readability improvement to RISCVMatInt. NFC"

[Craig Topper via llvm-commits]

Author: Craig Topper
Date: 2023-06-05T23:22:28-07:00
New Revision: 03bc33c809616df70047f5fe1a9ce7dffac43f52

URL: https://github.com/llvm/llvm-project/commit/03bc33c809616df70047f5fe1a9ce7dffac43f52
DIFF: https://github.com/llvm/llvm-project/commit/03bc33c809616df70047f5fe1a9ce7dffac43f52.diff

LOG: Revert "[RISCV] Minor readability improvement to RISCVMatInt. NFC"

This reverts commit 1ebe06017df607d4fc140f6b166e35cd32fc5f16.

I've been informed the old way was documented in the psABI.

Added: 
    

Modified: 
    llvm/lib/Target/RISCV/MCTargetDesc/RISCVMatInt.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/RISCV/MCTargetDesc/RISCVMatInt.cpp b/llvm/lib/Target/RISCV/MCTargetDesc/RISCVMatInt.cpp
index f4e6c3db8ab63..95c8098829a65 100644
--- a/llvm/lib/Target/RISCV/MCTargetDesc/RISCVMatInt.cpp
+++ b/llvm/lib/Target/RISCV/MCTargetDesc/RISCVMatInt.cpp
@@ -65,8 +65,8 @@ static void generateInstSeqImpl(int64_t Val,
     // v[0,12) != 0 && v[12,32) == 0 : ADDI
     // v[0,12) == 0 && v[12,32) != 0 : LUI
     // v[0,32) != 0                  : LUI+ADDI(W)
+    int64_t Hi20 = ((Val + 0x800) >> 12) & 0xFFFFF;
     int64_t Lo12 = SignExtend64<12>(Val);
-    int64_t Hi20 = ((Val - Lo12) >> 12) & 0xFFFFF;
 
     if (Hi20)
       Res.emplace_back(RISCV::LUI, Hi20);