From 42a09dc12fa252cbabb4faf53606d5826f26a5bd Mon Sep 17 00:00:00 2001 From: Ulrich Weigand Date: Tue, 2 Jul 2013 21:31:59 +0000 Subject: [PowerPC] PR16512 - Support TLS call sequences in the asm parser This patch now adds support for recognizing TLS call sequences in the asm parser. This needs a new pattern BL8_TLS, which is like BL8_NOP_TLS except without nop. That pattern is used for the asm parser only. llvm-svn: 185478 --- llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp | 25 ++++++++++++++++++++-- 1 file changed, 23 insertions(+), 2 deletions(-) (limited to 'llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp') diff --git a/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp b/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp index 7a654ea8289..489296311e1 100644 --- a/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp +++ b/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp @@ -940,8 +940,29 @@ ParseOperand(SmallVectorImpl &Operands) { // Push the parsed operand into the list of operands Operands.push_back(Op); - // Check for D-form memory operands - if (getLexer().is(AsmToken::LParen)) { + // Check whether this is a TLS call expression + bool TLSCall = false; + if (const MCSymbolRefExpr *Ref = dyn_cast(EVal)) + TLSCall = Ref->getSymbol().getName() == "__tls_get_addr"; + + if (TLSCall && getLexer().is(AsmToken::LParen)) { + const MCExpr *TLSSym; + + Parser.Lex(); // Eat the '('. + S = Parser.getTok().getLoc(); + if (ParseExpression(TLSSym)) + return Error(S, "invalid TLS call expression"); + if (getLexer().isNot(AsmToken::RParen)) + return Error(Parser.getTok().getLoc(), "missing ')'"); + E = Parser.getTok().getLoc(); + Parser.Lex(); // Eat the ')'. + + Op = PPCOperand::CreateExpr(TLSSym, S, E, isPPC64()); + Operands.push_back(Op); + } + + // Otherwise, check for D-form memory operands + if (!TLSCall && getLexer().is(AsmToken::LParen)) { Parser.Lex(); // Eat the '('. S = Parser.getTok().getLoc(); -- cgit v1.2.3