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[PowerPC] Support @higher et.al. modifiers

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This adds support for the @higher, @highera, @highest, and @highesta
modifers, including some missing relocation types.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184550 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ulrich Weigand
2013-06-21 14:43:42 +00:00
parent f8f87dcfce
commit f7c1ee79fe
10 changed files with 107 additions and 3 deletions
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lib/Target/PowerPC/MCTargetDesc/PPCMCExpr.cpp
+29 -1
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@@ -42,6 +42,10 @@ void PPCMCExpr::PrintImpl(raw_ostream &OS) const {
case VK_PPC_LO: OS << "@l"; break;
case VK_PPC_HI: OS << "@h"; break;
case VK_PPC_HA: OS << "@ha"; break;
case VK_PPC_HIGHER: OS << "@higher"; break;
case VK_PPC_HIGHERA: OS << "@highera"; break;
case VK_PPC_HIGHEST: OS << "@highest"; break;
case VK_PPC_HIGHESTA: OS << "@highesta"; break;
}
}
}
@@ -66,7 +70,19 @@ PPCMCExpr::EvaluateAsRelocatableImpl(MCValue &Res,
Result = (Result >> 16) & 0xffff;
break;
case VK_PPC_HA:
Result = ((Result >> 16) + ((Result & 0x8000) ? 1 : 0)) & 0xffff;
Result = ((Result + 0x8000) >> 16) & 0xffff;
break;
case VK_PPC_HIGHER:
Result = (Result >> 32) & 0xffff;
break;
case VK_PPC_HIGHERA:
Result = ((Result + 0x8000) >> 32) & 0xffff;
break;
case VK_PPC_HIGHEST:
Result = (Result >> 48) & 0xffff;
break;
case VK_PPC_HIGHESTA:
Result = ((Result + 0x8000) >> 48) & 0xffff;
break;
}
Res = MCValue::get(Result);
@@ -88,6 +104,18 @@ PPCMCExpr::EvaluateAsRelocatableImpl(MCValue &Res,
case VK_PPC_HA:
Modifier = MCSymbolRefExpr::VK_PPC_HA;
break;
case VK_PPC_HIGHERA:
Modifier = MCSymbolRefExpr::VK_PPC_HIGHERA;
break;
case VK_PPC_HIGHER:
Modifier = MCSymbolRefExpr::VK_PPC_HIGHER;
break;
case VK_PPC_HIGHEST:
Modifier = MCSymbolRefExpr::VK_PPC_HIGHEST;
break;
case VK_PPC_HIGHESTA:
Modifier = MCSymbolRefExpr::VK_PPC_HIGHESTA;
break;
}
Sym = MCSymbolRefExpr::Create(&Sym->getSymbol(), Modifier, Context);
Res = MCValue::get(Sym, Value.getSymB(), Value.getConstant());