diff options
| -rw-r--r-- | llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp | 13 | ||||
| -rw-r--r-- | llvm/test/MC/X86/intel-syntax-2.s | 8 |
2 files changed, 20 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp b/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp index e504f270552..17aca81d375 100644 --- a/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp +++ b/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp @@ -2528,14 +2528,25 @@ bool X86AsmParser::ParseDirective(AsmToken DirectiveID) { else if (IDVal.startswith(".code")) return ParseDirectiveCode(IDVal, DirectiveID.getLoc()); else if (IDVal.startswith(".att_syntax")) { + if (getLexer().isNot(AsmToken::EndOfStatement)) { + if (Parser.getTok().getString() == "prefix") + Parser.Lex(); + else if (Parser.getTok().getString() == "noprefix") + return Error(DirectiveID.getLoc(), "'.att_syntax noprefix' is not " + "supported: registers must have a " + "'%' prefix in .att_syntax"); + } getParser().setAssemblerDialect(0); return false; } else if (IDVal.startswith(".intel_syntax")) { getParser().setAssemblerDialect(1); if (getLexer().isNot(AsmToken::EndOfStatement)) { - // FIXME: Handle noprefix if (Parser.getTok().getString() == "noprefix") Parser.Lex(); + else if (Parser.getTok().getString() == "prefix") + return Error(DirectiveID.getLoc(), "'.intel_syntax prefix' is not " + "supported: registers must not have " + "a '%' prefix in .intel_syntax"); } return false; } diff --git a/llvm/test/MC/X86/intel-syntax-2.s b/llvm/test/MC/X86/intel-syntax-2.s index d6dbe152cd5..f7bdaf92dbb 100644 --- a/llvm/test/MC/X86/intel-syntax-2.s +++ b/llvm/test/MC/X86/intel-syntax-2.s @@ -7,3 +7,11 @@ _test: .att_syntax // CHECK: movl $257, -4(%rsp) movl $257, -4(%rsp) + +_test2: +.intel_syntax noprefix + mov DWORD PTR [RSP - 4], 255 +// CHECK: movl $255, -4(%rsp) +.att_syntax prefix + movl $255, -4(%rsp) +// CHECK: movl $255, -4(%rsp) |
