[VE] Add SVOB intrinsic instruction

[kaz7]

Summary

Add SVOB intrinsic instruction and a regression test.

llvm/include/llvm/IR/IntrinsicsVE.td

 // Define intrinsics written by hand
 
+// VEL Intrinsic instructions.
+let TargetPrefix = "ve" in {
+  def int_ve_vl_svob : GCCBuiltin<"__builtin_ve_vl_svob">,
+                       Intrinsic<[], [], [IntrHasSideEffects]>;
+}
+
 // Define intrinsics automatically generated
 include "llvm/IR/IntrinsicsVEVL.gen.td"

llvm/lib/Target/VE/VEInstrIntrinsicVL.td

 // Pattern Matchings for VEL Intrinsics
 
 // Define intrinsics written by hand
 
+// SVOB pattern.
+def : Pat<(int_ve_vl_svob), (SVOB)>;
+
 // The lsv and lvs patterns
 def : Pat<(int_ve_vl_lsv_vvss v256f64:$pt, i32:$sy, i64:$sz),
           (LSVrr_v (INSERT_SUBREG (i64 (IMPLICIT_DEF)), i32:$sy, sub_i32),
                    i64:$sz, v256f64:$pt)>;
 def : Pat<(int_ve_vl_lvsl_svs v256f64:$vx, i32:$sy),
           (LVSvr v256f64:$vx,
                  (INSERT_SUBREG (i64 (IMPLICIT_DEF)), i32:$sy, sub_i32))>;
 def : Pat<(int_ve_vl_lvsd_svs v256f64:$vx, i32:$sy),

llvm/test/CodeGen/VE/VELIntrinsics/svob.ll

+; RUN: llc < %s -mtriple=ve -mattr=+vpu | FileCheck %s
+
+;;; Test set vector out-of-order memory access boundary intrinsic instructions
+;;;
+;;; Note:
+;;;   We test SVOB instruction.
+
+; Function Attrs: nounwind
+define fastcc void @svob_svob() {
+; CHECK-LABEL: svob_svob:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    svob
+; CHECK-NEXT:    b.l.t (, %s10)
+  tail call void @llvm.ve.vl.svob()
+  ret void
+}
+
+; Function Attrs: nounwind
+declare void @llvm.ve.vl.svob()