diff options
| author | Daniel Dunbar <daniel@zuster.org> | 2010-05-25 19:49:32 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2010-05-25 19:49:32 +0000 |
| commit | 39e2dd7bab1925e12d4a03ae7abca0eff87274d6 (patch) | |
| tree | 39053ce5d8a65a945b26b9a952fbc9ba13541c67 /lib | |
| parent | 86234c30a7dea821e970323df4f168b9632d0bb7 (diff) | |
MC/X86: Add a hack to allow recognizing 'cmpltps' and friends.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104626 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/AsmParser/X86AsmParser.cpp | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp index cdfc26bb33..f1e8958f50 100644 --- a/lib/Target/X86/AsmParser/X86AsmParser.cpp +++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp @@ -632,8 +632,43 @@ ParseInstruction(const StringRef &Name, SMLoc NameLoc, .Case("cmovnzl", "cmovnel") .Case("cmovzl", "cmovel") .Default(Name); + + // FIXME: Hack to recognize cmp<comparison code>{ss,sd,ps,pd}. + const MCExpr *ExtraImmOp = 0; + if (PatchedName.startswith("cmp") && + (PatchedName.endswith("ss") || PatchedName.endswith("sd") || + PatchedName.endswith("ps") || PatchedName.endswith("pd"))) { + unsigned SSEComparisonCode = StringSwitch<unsigned>( + PatchedName.slice(3, PatchedName.size() - 2)) + .Case("eq", 0) + .Case("lt", 1) + .Case("le", 2) + .Case("unord", 3) + .Case("neq", 4) + .Case("nlt", 5) + .Case("nle", 6) + .Case("ord", 7) + .Default(~0U); + if (SSEComparisonCode != ~0U) { + ExtraImmOp = MCConstantExpr::Create(SSEComparisonCode, + getParser().getContext()); + if (PatchedName.endswith("ss")) { + PatchedName = "cmpss"; + } else if (PatchedName.endswith("sd")) { + PatchedName = "cmpsd"; + } else if (PatchedName.endswith("ps")) { + PatchedName = "cmpps"; + } else { + assert(PatchedName.endswith("pd") && "Unexpected mnemonic!"); + PatchedName = "cmppd"; + } + } + } Operands.push_back(X86Operand::CreateToken(PatchedName, NameLoc)); + if (ExtraImmOp) + Operands.push_back(X86Operand::CreateImm(ExtraImmOp, NameLoc, NameLoc)); + if (getLexer().isNot(AsmToken::EndOfStatement)) { // Parse '*' modifier. @@ -648,7 +683,7 @@ ParseInstruction(const StringRef &Name, SMLoc NameLoc, Operands.push_back(Op); else return true; - + while (getLexer().is(AsmToken::Comma)) { Parser.Lex(); // Eat the comma. |