[WebAssembly] Define WebAssembly-specific relocation codes.

[oota-llvm.git] / lib / MC / MCExpr.cpp

diff --git a/lib/MC/MCExpr.cpp b/lib/MC/MCExpr.cpp
index 916e505c4b9309862de73fae1475338ce5136f26..748644bd9c8fc396235ea1290df5914b9952f359 100644 (file)
--- a/lib/MC/MCExpr.cpp
+++ b/lib/MC/MCExpr.cpp
@@ -43,7 +43,7 @@ void MCExpr::print(raw_ostream &OS, const MCAsmInfo *MAI) const {
     const MCSymbol &Sym = SRE.getSymbol();
     // Parenthesize names that start with $ so that they don't look like
     // absolute names.
-    bool UseParens = Sym.getName()[0] == '$';
+    bool UseParens = Sym.getName().size() && Sym.getName()[0] == '$';
     if (UseParens) {
       OS << '(';
       Sym.print(OS, MAI);
@@ -202,6 +202,7 @@ StringRef MCSymbolRefExpr::getVariantKindName(VariantKind Kind) {
   case VK_SIZE: return "SIZE";
   case VK_WEAKREF: return "WEAKREF";
   case VK_ARM_NONE: return "none";
+  case VK_ARM_GOT_PREL: return "GOT_PREL";
   case VK_ARM_TARGET1: return "target1";
   case VK_ARM_TARGET2: return "target2";
   case VK_ARM_PREL31: return "prel31";
@@ -299,6 +300,7 @@ StringRef MCSymbolRefExpr::getVariantKindName(VariantKind Kind) {
   case VK_Hexagon_LD_PLT: return "LDPLT";
   case VK_Hexagon_IE: return "IE";
   case VK_Hexagon_IE_GOT: return "IEGOT";
+  case VK_WebAssembly_FUNCTION: return "FUNCTION";
   case VK_TPREL: return "tprel";
   case VK_DTPREL: return "dtprel";
   }
@@ -311,7 +313,6 @@ MCSymbolRefExpr::getVariantKindForName(StringRef Name) {
     .Case("got", VK_GOT)
     .Case("gotoff", VK_GOTOFF)
     .Case("gotpcrel", VK_GOTPCREL)
-    .Case("got_prel", VK_GOTPCREL)
     .Case("gottpoff", VK_GOTTPOFF)
     .Case("indntpoff", VK_INDNTPOFF)
     .Case("ntpoff", VK_NTPOFF)
@@ -382,7 +383,15 @@ MCSymbolRefExpr::getVariantKindForName(StringRef Name) {
     .Case("got@tlsld@l", VK_PPC_GOT_TLSLD_LO)
     .Case("got@tlsld@h", VK_PPC_GOT_TLSLD_HI)
     .Case("got@tlsld@ha", VK_PPC_GOT_TLSLD_HA)
+    .Case("gdgot", VK_Hexagon_GD_GOT)
+    .Case("gdplt", VK_Hexagon_GD_PLT)
+    .Case("iegot", VK_Hexagon_IE_GOT)
+    .Case("ie", VK_Hexagon_IE)
+    .Case("ldgot", VK_Hexagon_LD_GOT)
+    .Case("ldplt", VK_Hexagon_LD_PLT)
+    .Case("pcrel", VK_Hexagon_PCREL)
     .Case("none", VK_ARM_NONE)
+    .Case("got_prel", VK_ARM_GOT_PREL)
     .Case("target1", VK_ARM_TARGET1)
     .Case("target2", VK_ARM_TARGET2)
     .Case("prel31", VK_ARM_PREL31)
@@ -584,11 +593,6 @@ EvaluateSymbolicAdd(const MCAssembler *Asm, const MCAsmLayout *Layout,
   const MCSymbolRefExpr *A = LHS_A ? LHS_A : RHS_A;
   const MCSymbolRefExpr *B = LHS_B ? LHS_B : RHS_B;
 
-  // If we have a negated symbol, then we must have also have a non-negated
-  // symbol in order to encode the expression.
-  if (B && !A)
-    return false;
-
   Res = MCValue::get(A, B, Result_Cst);
   return true;
 }