This patch fixes a bug in floating point operands parsing, when instruction alias uses default register operand.
llvm-svn: 194562
diff --git a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
index cd88f9f..7b93d75 100644
--- a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
+++ b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
@@ -1159,9 +1159,7 @@
return true;
SMLoc E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
-
MCSymbol *Sym = getContext().GetOrCreateSymbol("$" + Identifier);
-
// Otherwise create a symbol reference.
const MCExpr *Res =
MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_None, getContext());
@@ -1170,6 +1168,25 @@
return false;
}
case AsmToken::Identifier:
+ // For instruction aliases like "bc1f $Label" dedicated parser will
+ // eat the '$' sign before failing. So in order to look for appropriate
+ // label we must check first if we have already consumed '$'.
+ if (hasConsumedDollar) {
+ hasConsumedDollar = false;
+ SMLoc S = Parser.getTok().getLoc();
+ StringRef Identifier;
+ if (Parser.parseIdentifier(Identifier))
+ return true;
+ SMLoc E =
+ SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
+ MCSymbol *Sym = getContext().GetOrCreateSymbol("$" + Identifier);
+ // Create a symbol reference.
+ const MCExpr *Res =
+ MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_None, getContext());
+
+ Operands.push_back(MipsOperand::CreateImm(Res, S, E));
+ return false;
+ }
// Look for the existing symbol, we should check if
// we need to assigne the propper RegisterKind.
if (searchSymbolAlias(Operands, MipsOperand::Kind_None))