diff options
| -rw-r--r-- | lib/Target/X86/AsmParser/X86AsmParser.cpp | 14 | ||||
| -rw-r--r-- | test/MC/AsmParser/X86/x86_instructions.s | 10 |
2 files changed, 24 insertions, 0 deletions
diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp index 6a664ad4ce..dae7d1298e 100644 --- a/lib/Target/X86/AsmParser/X86AsmParser.cpp +++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp @@ -857,6 +857,20 @@ ParseInstruction(StringRef Name, SMLoc NameLoc, std::swap(Operands[1], Operands[2]); } + // FIXME: Hack to handle "out[bwl]? %al, (%dx)" -> "outb %al, %dx". + if ((Name == "outb" || Name == "outw" || Name == "outl" || Name == "out") && + Operands.size() == 3) { + X86Operand &Op = *(X86Operand*)Operands.back(); + if (Op.isMem() && Op.Mem.SegReg == 0 && + isa<MCConstantExpr>(Op.Mem.Disp) && + cast<MCConstantExpr>(Op.Mem.Disp)->getValue() == 0 && + Op.Mem.BaseReg == MatchRegisterName("dx") && Op.Mem.IndexReg == 0) { + SMLoc Loc = Op.getEndLoc(); + Operands.back() = X86Operand::CreateReg(Op.Mem.BaseReg, Loc, Loc); + delete &Op; + } + } + // FIXME: Hack to handle "f{mul*,add*,sub*,div*} $op, st(0)" the same as // "f{mul*,add*,sub*,div*} $op" if ((Name.startswith("fmul") || Name.startswith("fadd") || diff --git a/test/MC/AsmParser/X86/x86_instructions.s b/test/MC/AsmParser/X86/x86_instructions.s index b895de35cc..d4444f8952 100644 --- a/test/MC/AsmParser/X86/x86_instructions.s +++ b/test/MC/AsmParser/X86/x86_instructions.s @@ -200,3 +200,13 @@ inw %dx outb $0x7f outw %dx inl %dx + + +// PR8114 +// CHECK: outb %al, %dx +// CHECK: outw %ax, %dx +// CHECK: outl %eax, %dx + +out %al, (%dx) +out %ax, (%dx) +outl %eax, (%dx) |