diff options
| author | Chris Lattner <sabre@nondot.org> | 2010-09-14 23:34:29 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-09-14 23:34:29 +0000 |
| commit | ef63c9a9b6f79fef91dc144db9d5f217d2b83a95 (patch) | |
| tree | ea997d449372471ded62bbd8c315b211787be965 /lib/Target | |
| parent | e6291ae96efa1e27ca6606ac59b17e35d45c057e (diff) | |
add a terrible hack to allow out with dx is parens, a gas bug.
This fixes PR8114
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113894 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
| -rw-r--r-- | lib/Target/X86/AsmParser/X86AsmParser.cpp | 14 |
1 files changed, 14 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") || |