[llvm] e6db141 - [RISCV] Remove unused Addend parameter from classifySymbolRef. NFC

[Fangrui Song via llvm-commits]

Author: Fangrui Song
Date: 2020-11-29T19:17:59-08:00
New Revision: e6db1416aebf44bdd33a5aab4db1fec58af79590

URL: https://github.com/llvm/llvm-project/commit/e6db1416aebf44bdd33a5aab4db1fec58af79590
DIFF: https://github.com/llvm/llvm-project/commit/e6db1416aebf44bdd33a5aab4db1fec58af79590.diff

LOG: [RISCV] Remove unused Addend parameter from classifySymbolRef. NFC

It is confusing as well since in the case of A - B + Cst, the returned Addend is not Cst.

Added: 
    

Modified: 
    llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp b/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp
index 22ef0829a7ef..cb94d05d9dd4 100644
--- a/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp
+++ b/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp
@@ -215,8 +215,7 @@ class RISCVAsmParser : public MCTargetAsmParser {
   };
 
   static bool classifySymbolRef(const MCExpr *Expr,
-                                RISCVMCExpr::VariantKind &Kind,
-                                int64_t &Addend);
+                                RISCVMCExpr::VariantKind &Kind);
 
   RISCVAsmParser(const MCSubtargetInfo &STI, MCAsmParser &Parser,
                  const MCInstrInfo &MII, const MCTargetOptions &Options)
@@ -381,7 +380,7 @@ struct RISCVOperand : public MCParsedAsmOperand {
     bool IsConstantImm = evaluateConstantImm(getImm(), Imm, VK);
     bool IsValid;
     if (!IsConstantImm)
-      IsValid = RISCVAsmParser::classifySymbolRef(getImm(), VK, Imm);
+      IsValid = RISCVAsmParser::classifySymbolRef(getImm(), VK);
     else
       IsValid = isShiftedInt<N - 1, 1>(Imm);
     return IsValid && VK == RISCVMCExpr::VK_RISCV_None;
@@ -395,7 +394,7 @@ struct RISCVOperand : public MCParsedAsmOperand {
     // Must be of 'immediate' type but not a constant.
     if (!isImm() || evaluateConstantImm(getImm(), Imm, VK))
       return false;
-    return RISCVAsmParser::classifySymbolRef(getImm(), VK, Imm) &&
+    return RISCVAsmParser::classifySymbolRef(getImm(), VK) &&
            VK == RISCVMCExpr::VK_RISCV_None;
   }
 
@@ -405,7 +404,7 @@ struct RISCVOperand : public MCParsedAsmOperand {
     // Must be of 'immediate' type but not a constant.
     if (!isImm() || evaluateConstantImm(getImm(), Imm, VK))
       return false;
-    return RISCVAsmParser::classifySymbolRef(getImm(), VK, Imm) &&
+    return RISCVAsmParser::classifySymbolRef(getImm(), VK) &&
            (VK == RISCVMCExpr::VK_RISCV_CALL ||
             VK == RISCVMCExpr::VK_RISCV_CALL_PLT);
   }
@@ -416,7 +415,7 @@ struct RISCVOperand : public MCParsedAsmOperand {
     // Must be of 'immediate' type but not a constant.
     if (!isImm() || evaluateConstantImm(getImm(), Imm, VK))
       return false;
-    return RISCVAsmParser::classifySymbolRef(getImm(), VK, Imm) &&
+    return RISCVAsmParser::classifySymbolRef(getImm(), VK) &&
            VK == RISCVMCExpr::VK_RISCV_CALL;
   }
 
@@ -426,7 +425,7 @@ struct RISCVOperand : public MCParsedAsmOperand {
     // Must be of 'immediate' type but not a constant.
     if (!isImm() || evaluateConstantImm(getImm(), Imm, VK))
       return false;
-    return RISCVAsmParser::classifySymbolRef(getImm(), VK, Imm) &&
+    return RISCVAsmParser::classifySymbolRef(getImm(), VK) &&
            VK == RISCVMCExpr::VK_RISCV_TPREL_ADD;
   }
 
@@ -641,7 +640,7 @@ struct RISCVOperand : public MCParsedAsmOperand {
       return false;
     bool IsConstantImm = evaluateConstantImm(getImm(), Imm, VK);
     if (!IsConstantImm)
-      IsValid = RISCVAsmParser::classifySymbolRef(getImm(), VK, Imm);
+      IsValid = RISCVAsmParser::classifySymbolRef(getImm(), VK);
     else
       IsValid = isInt<12>(Imm);
     return IsValid && ((IsConstantImm && VK == RISCVMCExpr::VK_RISCV_None) ||
@@ -672,7 +671,7 @@ struct RISCVOperand : public MCParsedAsmOperand {
       return false;
     bool IsConstantImm = evaluateConstantImm(getImm(), Imm, VK);
     if (!IsConstantImm) {
-      IsValid = RISCVAsmParser::classifySymbolRef(getImm(), VK, Imm);
+      IsValid = RISCVAsmParser::classifySymbolRef(getImm(), VK);
       return IsValid && (VK == RISCVMCExpr::VK_RISCV_HI ||
                          VK == RISCVMCExpr::VK_RISCV_TPREL_HI);
     } else {
@@ -690,7 +689,7 @@ struct RISCVOperand : public MCParsedAsmOperand {
       return false;
     bool IsConstantImm = evaluateConstantImm(getImm(), Imm, VK);
     if (!IsConstantImm) {
-      IsValid = RISCVAsmParser::classifySymbolRef(getImm(), VK, Imm);
+      IsValid = RISCVAsmParser::classifySymbolRef(getImm(), VK);
       return IsValid && (VK == RISCVMCExpr::VK_RISCV_PCREL_HI ||
                          VK == RISCVMCExpr::VK_RISCV_GOT_HI ||
                          VK == RISCVMCExpr::VK_RISCV_TLS_GOT_HI ||
@@ -1849,10 +1848,8 @@ bool RISCVAsmParser::ParseInstruction(ParseInstructionInfo &Info,
 }
 
 bool RISCVAsmParser::classifySymbolRef(const MCExpr *Expr,
-                                       RISCVMCExpr::VariantKind &Kind,
-                                       int64_t &Addend) {
+                                       RISCVMCExpr::VariantKind &Kind) {
   Kind = RISCVMCExpr::VK_RISCV_None;
-  Addend = 0;
 
   if (const RISCVMCExpr *RE = dyn_cast<RISCVMCExpr>(Expr)) {
     Kind = RE->getKind();
@@ -1885,10 +1882,6 @@ bool RISCVAsmParser::classifySymbolRef(const MCExpr *Expr,
   if (!AddendExpr)
     return false;
 
-  Addend = AddendExpr->getValue();
-  if (BE->getOpcode() == MCBinaryExpr::Sub)
-    Addend = -Addend;
-
   // It's some symbol reference + a constant addend
   return Kind != RISCVMCExpr::VK_RISCV_Invalid;
 }