[RISCV] Remove dead code from evaluateTargetFixup

MaskRay · SchrodingerZhu · commit a0930acc38eb · 2025-03-31T10:46:31.000-04:00
AUIPCTarget as a relocatable expression cannot have a SubSym or
@-specifier.
diff --git a/llvm/lib/Target/RISCV/MCTargetDesc/RISCVAsmBackend.cpp b/llvm/lib/Target/RISCV/MCTargetDesc/RISCVAsmBackend.cpp
@@ -560,12 +560,11 @@ bool RISCVAsmBackend::evaluateTargetFixup(const MCAssembler &Asm,
   }
   }
 
-  if (!AUIPCTarget.getSymA() || AUIPCTarget.getSubSym())
+  if (!AUIPCTarget.getSymA())
     return false;
 
-  const MCSymbolRefExpr *A = AUIPCTarget.getSymA();
-  const MCSymbolELF &SA = cast<MCSymbolELF>(A->getSymbol());
-  if (getSpecifier(A) != RISCVMCExpr::VK_None || SA.isUndefined())
+  const MCSymbolELF &SA = cast<MCSymbolELF>(*AUIPCTarget.getAddSym());
+  if (SA.isUndefined())
     return false;
 
   bool IsResolved = &SA.getSection() == AUIPCDF->getParent() &&

Original file line number	Diff line number	Diff line change
`@@ -560,12 +560,11 @@ bool RISCVAsmBackend::evaluateTargetFixup(const MCAssembler &Asm,`
`560`	`560`	`}`
`561`	`561`	`}`
`562`	`562`
`563`		`- if (!AUIPCTarget.getSymA() \|\| AUIPCTarget.getSubSym())`
	`563`	`+ if (!AUIPCTarget.getSymA())`
`564`	`564`	`return false;`
`565`	`565`
`566`		`- const MCSymbolRefExpr *A = AUIPCTarget.getSymA();`
`567`		`- const MCSymbolELF &SA = cast<MCSymbolELF>(A->getSymbol());`
`568`		`- if (getSpecifier(A) != RISCVMCExpr::VK_None \|\| SA.isUndefined())`
	`566`	`+ const MCSymbolELF &SA = cast<MCSymbolELF>(*AUIPCTarget.getAddSym());`
	`567`	`+ if (SA.isUndefined())`
`569`	`568`	`return false;`
`570`	`569`
`571`	`570`	`bool IsResolved = &SA.getSection() == AUIPCDF->getParent() &&`