[VE] Add pfchv intrinsic instructions

[kaz7]

Summary

Add pfchv intrinsic instructions and a regression test.

[kaz7]

rebase to master

llvm/include/llvm/IR/IntrinsicsVEVL.gen.td

 let TargetPrefix = "ve" in def int_ve_vl_vstl2d_vssl : GCCBuiltin<"__builtin_ve_vl_vstl2d_vssl">, Intrinsic<[], [LLVMType<v256f64>, LLVMType<i64>, llvm_ptr_ty, LLVMType<i32>], [IntrWriteMem]>;
 let TargetPrefix = "ve" in def int_ve_vl_vstl2d_vssml : GCCBuiltin<"__builtin_ve_vl_vstl2d_vssml">, Intrinsic<[], [LLVMType<v256f64>, LLVMType<i64>, llvm_ptr_ty, LLVMType<v256i1>, LLVMType<i32>], [IntrWriteMem]>;
 let TargetPrefix = "ve" in def int_ve_vl_vstl2dnc_vssl : GCCBuiltin<"__builtin_ve_vl_vstl2dnc_vssl">, Intrinsic<[], [LLVMType<v256f64>, LLVMType<i64>, llvm_ptr_ty, LLVMType<i32>], [IntrWriteMem]>;
 let TargetPrefix = "ve" in def int_ve_vl_vstl2dnc_vssml : GCCBuiltin<"__builtin_ve_vl_vstl2dnc_vssml">, Intrinsic<[], [LLVMType<v256f64>, LLVMType<i64>, llvm_ptr_ty, LLVMType<v256i1>, LLVMType<i32>], [IntrWriteMem]>;
 let TargetPrefix = "ve" in def int_ve_vl_vstl2dot_vssl : GCCBuiltin<"__builtin_ve_vl_vstl2dot_vssl">, Intrinsic<[], [LLVMType<v256f64>, LLVMType<i64>, llvm_ptr_ty, LLVMType<i32>], [IntrWriteMem]>;
 let TargetPrefix = "ve" in def int_ve_vl_vstl2dot_vssml : GCCBuiltin<"__builtin_ve_vl_vstl2dot_vssml">, Intrinsic<[], [LLVMType<v256f64>, LLVMType<i64>, llvm_ptr_ty, LLVMType<v256i1>, LLVMType<i32>], [IntrWriteMem]>;
 let TargetPrefix = "ve" in def int_ve_vl_vstl2dncot_vssl : GCCBuiltin<"__builtin_ve_vl_vstl2dncot_vssl">, Intrinsic<[], [LLVMType<v256f64>, LLVMType<i64>, llvm_ptr_ty, LLVMType<i32>], [IntrWriteMem]>;
 let TargetPrefix = "ve" in def int_ve_vl_vstl2dncot_vssml : GCCBuiltin<"__builtin_ve_vl_vstl2dncot_vssml">, Intrinsic<[], [LLVMType<v256f64>, LLVMType<i64>, llvm_ptr_ty, LLVMType<v256i1>, LLVMType<i32>], [IntrWriteMem]>;
+let TargetPrefix = "ve" in def int_ve_vl_pfchv_ssl : GCCBuiltin<"__builtin_ve_vl_pfchv_ssl">, Intrinsic<[], [LLVMType<i64>, llvm_ptr_ty, LLVMType<i32>], [IntrInaccessibleMemOrArgMemOnly]>;
+let TargetPrefix = "ve" in def int_ve_vl_pfchvnc_ssl : GCCBuiltin<"__builtin_ve_vl_pfchvnc_ssl">, Intrinsic<[], [LLVMType<i64>, llvm_ptr_ty, LLVMType<i32>], [IntrInaccessibleMemOrArgMemOnly]>;

llvm/lib/Target/VE/VEInstrIntrinsicVL.gen.td

 def : Pat<(int_ve_vl_vstl2dot_vssl v256f64:$vx, i64:$sy, i64:$sz, i32:$vl), (VSTL2DOTrrvl i64:$sy, i64:$sz, v256f64:$vx, i32:$vl)>;
 def : Pat<(int_ve_vl_vstl2dot_vssl v256f64:$vx, simm7:$I, i64:$sz, i32:$vl), (VSTL2DOTirvl (LO7 $I), i64:$sz, v256f64:$vx, i32:$vl)>;
 def : Pat<(int_ve_vl_vstl2dot_vssml v256f64:$vx, i64:$sy, i64:$sz, v256i1:$vm, i32:$vl), (VSTL2DOTrrvml i64:$sy, i64:$sz, v256f64:$vx, v256i1:$vm, i32:$vl)>;
 def : Pat<(int_ve_vl_vstl2dot_vssml v256f64:$vx, simm7:$I, i64:$sz, v256i1:$vm, i32:$vl), (VSTL2DOTirvml (LO7 $I), i64:$sz, v256f64:$vx, v256i1:$vm, i32:$vl)>;
 def : Pat<(int_ve_vl_vstl2dncot_vssl v256f64:$vx, i64:$sy, i64:$sz, i32:$vl), (VSTL2DNCOTrrvl i64:$sy, i64:$sz, v256f64:$vx, i32:$vl)>;
 def : Pat<(int_ve_vl_vstl2dncot_vssl v256f64:$vx, simm7:$I, i64:$sz, i32:$vl), (VSTL2DNCOTirvl (LO7 $I), i64:$sz, v256f64:$vx, i32:$vl)>;
 def : Pat<(int_ve_vl_vstl2dncot_vssml v256f64:$vx, i64:$sy, i64:$sz, v256i1:$vm, i32:$vl), (VSTL2DNCOTrrvml i64:$sy, i64:$sz, v256f64:$vx, v256i1:$vm, i32:$vl)>;
 def : Pat<(int_ve_vl_vstl2dncot_vssml v256f64:$vx, simm7:$I, i64:$sz, v256i1:$vm, i32:$vl), (VSTL2DNCOTirvml (LO7 $I), i64:$sz, v256f64:$vx, v256i1:$vm, i32:$vl)>;
+def : Pat<(int_ve_vl_pfchv_ssl i64:$sy, i64:$sz, i32:$vl), (PFCHVrrl i64:$sy, i64:$sz, i32:$vl)>;
+def : Pat<(int_ve_vl_pfchv_ssl simm7:$I, i64:$sz, i32:$vl), (PFCHVirl (LO7 $I), i64:$sz, i32:$vl)>;
+def : Pat<(int_ve_vl_pfchvnc_ssl i64:$sy, i64:$sz, i32:$vl), (PFCHVNCrrl i64:$sy, i64:$sz, i32:$vl)>;
+def : Pat<(int_ve_vl_pfchvnc_ssl simm7:$I, i64:$sz, i32:$vl), (PFCHVNCirl (LO7 $I), i64:$sz, i32:$vl)>;

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

+; RUN: llc < %s -mtriple=ve -mattr=+vpu | FileCheck %s
+
+;;; Test prefetch vector intrinsic instructions
+;;;
+;;; Note:
+;;;   We test PFCHVrrl, PFCHVirl, PFCHVNCrrl, and PFCHVNCirl instructions.
+
+; Function Attrs: nounwind
+define void @pfchv_vssl(i8* %0, i64 %1) {
+; CHECK-LABEL: pfchv_vssl:
+; CHECK:       .LBB{{[0-9]+}}_2:
+; CHECK-NEXT:    lea %s2, 256
+; CHECK-NEXT:    lvl %s2
+; CHECK-NEXT:    pfchv %s1, %s0
+; CHECK-NEXT:    or %s11, 0, %s9
+  tail call void @llvm.ve.vl.pfchv.ssl(i64 %1, i8* %0, i32 256)
+  ret void
+}
+
+; Function Attrs: inaccessiblemem_or_argmemonly nounwind
+declare void @llvm.ve.vl.pfchv.ssl(i64, i8*, i32)
+
+; Function Attrs: nounwind
+define void @pfchv_vssl_imm(i8* %0) {
+; CHECK-LABEL: pfchv_vssl_imm:
+; CHECK:       .LBB{{[0-9]+}}_2:
+; CHECK-NEXT:    lea %s1, 256
+; CHECK-NEXT:    lvl %s1
+; CHECK-NEXT:    pfchv 8, %s0
+; CHECK-NEXT:    or %s11, 0, %s9
+  tail call void @llvm.ve.vl.pfchv.ssl(i64 8, i8* %0, i32 256)
+  ret void
+}
+
+; Function Attrs: nounwind
+define void @pfchvnc_vssl(i8* %0, i64 %1) {
+; CHECK-LABEL: pfchvnc_vssl:
+; CHECK:       .LBB{{[0-9]+}}_2:
+; CHECK-NEXT:    lea %s2, 256
+; CHECK-NEXT:    lvl %s2
+; CHECK-NEXT:    pfchv.nc %s1, %s0
+; CHECK-NEXT:    or %s11, 0, %s9
+  tail call void @llvm.ve.vl.pfchvnc.ssl(i64 %1, i8* %0, i32 256)
+  ret void
+}
+
+; Function Attrs: inaccessiblemem_or_argmemonly nounwind
+declare void @llvm.ve.vl.pfchvnc.ssl(i64, i8*, i32)
+
+; Function Attrs: nounwind
+define void @pfchvnc_vssl_imm(i8* %0) {
+; CHECK-LABEL: pfchvnc_vssl_imm:
+; CHECK:       .LBB{{[0-9]+}}_2:
+; CHECK-NEXT:    lea %s1, 256
+; CHECK-NEXT:    lvl %s1
+; CHECK-NEXT:    pfchv.nc 8, %s0
+; CHECK-NEXT:    or %s11, 0, %s9
+  tail call void @llvm.ve.vl.pfchvnc.ssl(i64 8, i8* %0, i32 256)
+  ret void
+}