[SelectionDAG] Rename fextend -> fpextend, fround -> fpround, frnd -> fround

The names of the tablegen defs now match the names of the ISD nodes.
This makes the world a slightly saner place, as previously "fround" matched
ISD::FP_ROUND and not ISD::FROUND.

Differential Revision: https://reviews.llvm.org/D23597

llvm-svn: 279129
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
index 9ef03a0..8d8dbfd 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -4995,8 +4995,8 @@
 
 SDValue SystemZTargetLowering::combineFP_ROUND(
     SDNode *N, DAGCombinerInfo &DCI) const {
-  // (fround (extract_vector_elt X 0))
-  // (fround (extract_vector_elt X 1)) ->
+  // (fpround (extract_vector_elt X 0))
+  // (fpround (extract_vector_elt X 1)) ->
   // (extract_vector_elt (VROUND X) 0)
   // (extract_vector_elt (VROUND X) 1)
   //
diff --git a/llvm/lib/Target/SystemZ/SystemZInstrFP.td b/llvm/lib/Target/SystemZ/SystemZInstrFP.td
index 8b32047..63dba6c 100644
--- a/llvm/lib/Target/SystemZ/SystemZInstrFP.td
+++ b/llvm/lib/Target/SystemZ/SystemZInstrFP.td
@@ -154,7 +154,7 @@
 // Convert floating-point values to narrower representations, rounding
 // according to the current mode.  The destination of LEXBR and LDXBR
 // is a 128-bit value, but only the first register of the pair is used.
-def LEDBR : UnaryRRE<"ledb", 0xB344, fround,    FP32,  FP64>;
+def LEDBR : UnaryRRE<"ledb", 0xB344, fpround,    FP32,  FP64>;
 def LEXBR : UnaryRRE<"lexb", 0xB346, null_frag, FP128, FP128>;
 def LDXBR : UnaryRRE<"ldxb", 0xB345, null_frag, FP128, FP128>;
 
@@ -165,15 +165,15 @@
 def LDXBRA : UnaryRRF4<"ldxbra", 0xB345, FP128, FP128>,
              Requires<[FeatureFPExtension]>;
 
-def : Pat<(f32 (fround FP128:$src)),
+def : Pat<(f32 (fpround FP128:$src)),
           (EXTRACT_SUBREG (LEXBR FP128:$src), subreg_hr32)>;
-def : Pat<(f64 (fround FP128:$src)),
+def : Pat<(f64 (fpround FP128:$src)),
           (EXTRACT_SUBREG (LDXBR FP128:$src), subreg_h64)>;
 
 // Extend register floating-point values to wider representations.
-def LDEBR : UnaryRRE<"ldeb", 0xB304, fextend, FP64,  FP32>;
-def LXEBR : UnaryRRE<"lxeb", 0xB306, fextend, FP128, FP32>;
-def LXDBR : UnaryRRE<"lxdb", 0xB305, fextend, FP128, FP64>;
+def LDEBR : UnaryRRE<"ldeb", 0xB304, fpextend, FP64,  FP32>;
+def LXEBR : UnaryRRE<"lxeb", 0xB306, fpextend, FP128, FP32>;
+def LXDBR : UnaryRRE<"lxdb", 0xB305, fpextend, FP128, FP64>;
 
 // Extend memory floating-point values to wider representations.
 def LDEB : UnaryRXE<"ldeb", 0xED04, extloadf32, FP64,  4>;
@@ -347,9 +347,9 @@
 
   // Same idea for round, where mode 1 is round towards nearest with
   // ties away from zero.
-  def : Pat<(frnd FP32:$src),  (FIEBRA 1, FP32:$src,  4)>;
-  def : Pat<(frnd FP64:$src),  (FIDBRA 1, FP64:$src,  4)>;
-  def : Pat<(frnd FP128:$src), (FIXBRA 1, FP128:$src, 4)>;
+  def : Pat<(fround FP32:$src),  (FIEBRA 1, FP32:$src,  4)>;
+  def : Pat<(fround FP64:$src),  (FIDBRA 1, FP64:$src,  4)>;
+  def : Pat<(fround FP128:$src), (FIXBRA 1, FP128:$src, 4)>;
 }
 
 //===----------------------------------------------------------------------===//
@@ -388,26 +388,26 @@
 
 // f64 multiplication of two FP32 registers.
 def MDEBR : BinaryRRE<"mdeb", 0xB30C, null_frag, FP64, FP32>;
-def : Pat<(fmul (f64 (fextend FP32:$src1)), (f64 (fextend FP32:$src2))),
+def : Pat<(fmul (f64 (fpextend FP32:$src1)), (f64 (fpextend FP32:$src2))),
           (MDEBR (INSERT_SUBREG (f64 (IMPLICIT_DEF)),
                                 FP32:$src1, subreg_r32), FP32:$src2)>;
 
 // f64 multiplication of an FP32 register and an f32 memory.
 def MDEB : BinaryRXE<"mdeb", 0xED0C, null_frag, FP64, load, 4>;
-def : Pat<(fmul (f64 (fextend FP32:$src1)),
+def : Pat<(fmul (f64 (fpextend FP32:$src1)),
                 (f64 (extloadf32 bdxaddr12only:$addr))),
           (MDEB (INSERT_SUBREG (f64 (IMPLICIT_DEF)), FP32:$src1, subreg_r32),
                 bdxaddr12only:$addr)>;
 
 // f128 multiplication of two FP64 registers.
 def MXDBR : BinaryRRE<"mxdb", 0xB307, null_frag, FP128, FP64>;
-def : Pat<(fmul (f128 (fextend FP64:$src1)), (f128 (fextend FP64:$src2))),
+def : Pat<(fmul (f128 (fpextend FP64:$src1)), (f128 (fpextend FP64:$src2))),
           (MXDBR (INSERT_SUBREG (f128 (IMPLICIT_DEF)),
                                 FP64:$src1, subreg_h64), FP64:$src2)>;
 
 // f128 multiplication of an FP64 register and an f64 memory.
 def MXDB : BinaryRXE<"mxdb", 0xED07, null_frag, FP128, load, 8>;
-def : Pat<(fmul (f128 (fextend FP64:$src1)),
+def : Pat<(fmul (f128 (fpextend FP64:$src1)),
                 (f128 (extloadf64 bdxaddr12only:$addr))),
           (MXDB (INSERT_SUBREG (f128 (IMPLICIT_DEF)), FP64:$src1, subreg_h64),
                 bdxaddr12only:$addr)>;
diff --git a/llvm/lib/Target/SystemZ/SystemZInstrVector.td b/llvm/lib/Target/SystemZ/SystemZInstrVector.td
index c101e43..c6d1a25 100644
--- a/llvm/lib/Target/SystemZ/SystemZInstrVector.td
+++ b/llvm/lib/Target/SystemZ/SystemZInstrVector.td
@@ -798,7 +798,7 @@
   def : FPConversion<insn, ffloor,     tr, tr, 4, 7>;
   def : FPConversion<insn, fceil,      tr, tr, 4, 6>;
   def : FPConversion<insn, ftrunc,     tr, tr, 4, 5>;
-  def : FPConversion<insn, frnd,       tr, tr, 4, 1>;
+  def : FPConversion<insn, fround,     tr, tr, 4, 1>;
 }
 
 let Predicates = [FeatureVector] in {
@@ -840,13 +840,13 @@
 
   // Load lengthened.
   def VLDEB : UnaryVRRa<"vldeb", 0xE7C4, z_vextend, v128db, v128eb, 2, 0>;
-  def WLDEB : UnaryVRRa<"wldeb", 0xE7C4, fextend, v64db, v32eb, 2, 8>;
+  def WLDEB : UnaryVRRa<"wldeb", 0xE7C4, fpextend, v64db, v32eb, 2, 8>;
 
   // Load rounded,
   def VLEDB : TernaryVRRa<"vledb", 0xE7C5, null_frag, v128eb, v128db, 3, 0>;
   def WLEDB : TernaryVRRa<"wledb", 0xE7C5, null_frag, v32eb, v64db, 3, 8>;
   def : Pat<(v4f32 (z_vround (v2f64 VR128:$src))), (VLEDB VR128:$src, 0, 0)>;
-  def : FPConversion<WLEDB, fround, v32eb, v64db, 0, 0>;
+  def : FPConversion<WLEDB, fpround, v32eb, v64db, 0, 0>;
 
   // Multiply.
   def VFMDB : BinaryVRRc<"vfmdb", 0xE7E7, fmul, v128db, v128db, 3, 0>;