[SystemZ] Add floating-point test data class instructions.

These are not used by CodeGen yet - ISD combiners creating the new node
will come in subsequent patches.

llvm-svn: 274108

5 files changed, 29 insertions, 0 deletions

diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
index 9c4c93df654..f2f78ec7e05 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -4684,6 +4684,7 @@ const char *SystemZTargetLowering::getTargetNodeName(unsigned Opcode) const {
     OPCODE(ATOMIC_CMP_SWAPW);
     OPCODE(LRV);
     OPCODE(STRV);
+    OPCODE(TDC);
     OPCODE(PREFETCH);
   }
   return nullptr;
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.h b/llvm/lib/Target/SystemZ/SystemZISelLowering.h
index 97a44675ef0..bb3b718fd6a 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.h
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.h
@@ -324,6 +324,12 @@ enum NodeType : unsigned {
   // Operand 2: the type of store (i16, i32, i64)
   STRV,
 
+  // Test Data Class.
+  //
+  // Operand 0: the value to test
+  // Operand 1: the bit mask
+  TDC,
+
   // Prefetch from the second operand using the 4-bit control code in
   // the first operand.  The code is 1 for a load prefetch and 2 for
   // a store prefetch.
diff --git a/llvm/lib/Target/SystemZ/SystemZInstrFP.td b/llvm/lib/Target/SystemZ/SystemZInstrFP.td
index 82dccd3878b..8b32047e08e 100644
--- a/llvm/lib/Target/SystemZ/SystemZInstrFP.td
+++ b/llvm/lib/Target/SystemZ/SystemZInstrFP.td
@@ -447,6 +447,13 @@ let Defs = [CC], CCValues = 0xF in {
   def CDB : CompareRXE<"cdb", 0xED19, z_fcmp, FP64, load, 8>;
 }
 
+// Test Data Class.
+let Defs = [CC], CCValues = 0xC in {
+  def TCEB : TestRXE<"tceb", 0xED10, z_tdc, FP32>;
+  def TCDB : TestRXE<"tcdb", 0xED11, z_tdc, FP64>;
+  def TCXB : TestRXE<"tcxb", 0xED12, z_tdc, FP128>;
+}
+
 //===----------------------------------------------------------------------===//
 // Peepholes
 //===----------------------------------------------------------------------===//
diff --git a/llvm/lib/Target/SystemZ/SystemZInstrFormats.td b/llvm/lib/Target/SystemZ/SystemZInstrFormats.td
index 95b482e3864..8ab3ef65480 100644
--- a/llvm/lib/Target/SystemZ/SystemZInstrFormats.td
+++ b/llvm/lib/Target/SystemZ/SystemZInstrFormats.td
@@ -1001,6 +1001,10 @@ class InstVRX<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
 //   Compare:
 //     Two input operands and an implicit CC output operand.
 //
+//   Test:
+//     Two input operands and an implicit CC output operand.  The second
+//     input operand is an "address" operand used as a test class mask.
+//
 //   Ternary:
 //     One register output operand and three input operands.
 //
@@ -1956,6 +1960,14 @@ class CompareVRRa<string mnemonic, bits<16> opcode, SDPatternOperator operator,
   let M5 = 0;
 }
 
+class TestRXE<string mnemonic, bits<16> opcode, SDPatternOperator operator,
+              RegisterOperand cls>
+  : InstRXE<opcode, (outs), (ins cls:$R1, bdxaddr12only:$XBD2),
+            mnemonic#"\t$R1, $XBD2",
+            [(operator cls:$R1, bdxaddr12only:$XBD2)]> {
+  let M3 = 0;
+}
+
 class TernaryRRD<string mnemonic, bits<16> opcode,
                  SDPatternOperator operator, RegisterOperand cls>
   : InstRRD<opcode, (outs cls:$R1), (ins cls:$R1src, cls:$R3, cls:$R2),
diff --git a/llvm/lib/Target/SystemZ/SystemZOperators.td b/llvm/lib/Target/SystemZ/SystemZOperators.td
index c2039de7913..8d031f1ea05 100644
--- a/llvm/lib/Target/SystemZ/SystemZOperators.td
+++ b/llvm/lib/Target/SystemZ/SystemZOperators.td
@@ -145,6 +145,7 @@ def SDT_ZVecQuaternaryInt   : SDTypeProfile<1, 4,
                                              SDTCisSameAs<0, 2>,
                                              SDTCisSameAs<0, 3>,
                                              SDTCisVT<4, i32>]>;
+def SDT_ZTest               : SDTypeProfile<0, 2, [SDTCisVT<1, i64>]>;
 
 //===----------------------------------------------------------------------===//
 // Node definitions
@@ -204,6 +205,8 @@ def z_loadbswap        : SDNode<"SystemZISD::LRV", SDT_ZLoadBSwap,
 def z_storebswap       : SDNode<"SystemZISD::STRV", SDT_ZStoreBSwap,
                                  [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
 
+def z_tdc               : SDNode<"SystemZISD::TDC", SDT_ZTest, [SDNPOutGlue]>;
+
 // Defined because the index is an i32 rather than a pointer.
 def z_vector_insert     : SDNode<"ISD::INSERT_VECTOR_ELT",
                                  SDT_ZInsertVectorElt>;