[X86][XOP] Added support for the lowering of 128-bit vector integer comparisons to...

[oota-llvm.git] / lib / Target / X86 / X86ISelLowering.cpp

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 069cfe49f2e43f69191a4b7a7eaf71c969dc7639..9ffce63501b93c59c04e68e9996379393a627407 100644 (file)
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -14179,6 +14179,33 @@ static SDValue LowerVSETCC(SDValue Op, const X86Subtarget *Subtarget,
                          DAG.getNode(ISD::SETCC, dl, OpVT, Op0, Op1, CC));
   }
 
+  // Lower using XOP integer comparisons.
+  if ((VT == MVT::v16i8 || VT == MVT::v8i16 ||
+       VT == MVT::v4i32 || VT == MVT::v2i64) && Subtarget->hasXOP()) {
+    // Translate compare code to XOP PCOM compare mode.
+    unsigned CmpMode = 0;
+    switch (SetCCOpcode) {
+    default: llvm_unreachable("Unexpected SETCC condition");
+    case ISD::SETULT:
+    case ISD::SETLT: CmpMode = 0x00; break;
+    case ISD::SETULE:
+    case ISD::SETLE: CmpMode = 0x01; break;
+    case ISD::SETUGT:
+    case ISD::SETGT: CmpMode = 0x02; break;
+    case ISD::SETUGE:
+    case ISD::SETGE: CmpMode = 0x03; break;
+    case ISD::SETEQ: CmpMode = 0x04; break;
+    case ISD::SETNE: CmpMode = 0x05; break;
+    }
+
+    // Are we comparing unsigned or signed integers?
+    unsigned Opc = ISD::isUnsignedIntSetCC(SetCCOpcode)
+      ? X86ISD::VPCOMU : X86ISD::VPCOM;
+
+    return DAG.getNode(Opc, dl, VT, Op0, Op1,
+                       DAG.getConstant(CmpMode, dl, MVT::i8));
+  }
+
   // We are handling one of the integer comparisons here.  Since SSE only has
   // GT and EQ comparisons for integer, swapping operands and multiple
   // operations may be required for some comparisons.
@@ -19851,6 +19878,8 @@ const char *X86TargetLowering::getTargetNodeName(unsigned Opcode) const {
   case X86ISD::VPMADDWD:           return "X86ISD::VPMADDWD";
   case X86ISD::VPSHA:              return "X86ISD::VPSHA";
   case X86ISD::VPSHL:              return "X86ISD::VPSHL";
+  case X86ISD::VPCOM:              return "X86ISD::VPCOM";
+  case X86ISD::VPCOMU:             return "X86ISD::VPCOMU";
   case X86ISD::FMADD:              return "X86ISD::FMADD";
   case X86ISD::FMSUB:              return "X86ISD::FMSUB";
   case X86ISD::FNMADD:             return "X86ISD::FNMADD";