Add AVX version of CLMUL instructions

[oota-llvm.git] / lib / Target / X86 / AsmParser / X86AsmParser.cpp

diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp
index 4e05961ca70b714cccb9eeab76331527b667aec8..3095bdb915fe3202dbba1b9a744917a4bb9421bb 100644 (file)
--- a/lib/Target/X86/AsmParser/X86AsmParser.cpp
+++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp
@@ -750,6 +750,23 @@ ParseInstruction(StringRef Name, SMLoc NameLoc,
       }
     }
   }
+
+  // FIXME: Hack to recognize vpclmul<src1_quadword, src2_quadword>dq
+  if (PatchedName.startswith("vpclmul")) {
+    unsigned CLMULQuadWordSelect = StringSwitch<unsigned>(
+      PatchedName.slice(7, PatchedName.size() - 2))
+      .Case("lqlq", 0x00) // src1[63:0],   src2[63:0]
+      .Case("hqlq", 0x01) // src1[127:64], src2[63:0]
+      .Case("lqhq", 0x10) // src1[63:0],   src2[127:64]
+      .Case("hqhq", 0x11) // src1[127:64], src2[127:64]
+      .Default(~0U);
+    if (CLMULQuadWordSelect != ~0U) {
+      ExtraImmOp = MCConstantExpr::Create(CLMULQuadWordSelect,
+                                          getParser().getContext());
+      assert(PatchedName.endswith("dq") && "Unexpected mnemonic!");
+      PatchedName = "vpclmulqdq";
+    }
+  }
   Operands.push_back(X86Operand::CreateToken(PatchedName, NameLoc));
 
   if (ExtraImmOp)