From d89b13625e3087b94212356b64f3d011e65852e4 Mon Sep 17 00:00:00 2001 From: Daniel Sanders Date: Mon, 24 Mar 2014 16:48:01 +0000 Subject: [mips] Add error message when trying to use $at in '.set noat' mode. Summary: Patch by David Chisnall His work was sponsored by: DARPA, AFRL Differential Revision: http://llvm-reviews.chandlerc.com/D3158 llvm-svn: 204621 --- llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp') diff --git a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp index 8c0c181feca..f54a62b666c 100644 --- a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp +++ b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp @@ -1174,7 +1174,12 @@ bool MipsAssemblerOptions::setATReg(unsigned Reg) { return true; } -int MipsAsmParser::getATReg() { return Options.getATRegNum(); } +int MipsAsmParser::getATReg() { + int AT = Options.getATRegNum(); + if (AT == 0) + TokError("Pseudo instruction requires $at, which is not available"); + return AT; +} unsigned MipsAsmParser::getReg(int RC, int RegNo) { return *(getContext().getRegisterInfo()->getRegClass(RC).begin() + RegNo); -- cgit v1.2.3