diff options
| -rw-r--r-- | lib/Target/X86/AsmParser/X86AsmParser.cpp | 9 | ||||
| -rw-r--r-- | test/MC/AsmParser/X86/x86_instructions.s | 11 |
2 files changed, 20 insertions, 0 deletions
diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp index 4856cc9283..7afa7e66d5 100644 --- a/lib/Target/X86/AsmParser/X86AsmParser.cpp +++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp @@ -833,6 +833,15 @@ ParseInstruction(StringRef Name, SMLoc NameLoc, Operands.push_back(X86Operand::CreateImm(One, NameLoc, NameLoc)); std::swap(Operands[1], Operands[2]); } + + // FIXME: Hack to handle recognize "sh[lr]d op,op" -> "shld $1, op,op". + if ((Name.startswith("shld") || Name.startswith("shrd")) && + Operands.size() == 3) { + const MCExpr *One = MCConstantExpr::Create(1, getParser().getContext()); + Operands.insert(Operands.begin()+1, + X86Operand::CreateImm(One, NameLoc, NameLoc)); + } + // FIXME: Hack to handle recognize "in[bwl] <op>". Canonicalize it to // "inb <op>, %al". diff --git a/test/MC/AsmParser/X86/x86_instructions.s b/test/MC/AsmParser/X86/x86_instructions.s index 3bd2a30504..0f0c1ed76a 100644 --- a/test/MC/AsmParser/X86/x86_instructions.s +++ b/test/MC/AsmParser/X86/x86_instructions.s @@ -268,3 +268,14 @@ rcl %bl rcll 0xdeadbeef(%ebx,%ecx,8) rcr %ecx rcrl 0x12345678 + +// rdar://8418316 +// CHECK: shldw $1, %bx, %bx +// CHECK: shldw $1, %bx, %bx +// CHECK: shrdw $1, %bx, %bx +// CHECK: shrdw $1, %bx, %bx + +shld %bx,%bx +shld $1, %bx,%bx +shrd %bx,%bx +shrd $1, %bx,%bx |