vendor/llvm-project/llvmorg-12-init-17869-g8e464dd76bef

1 files changed, 30 insertions, 0 deletions

diff --git a/llvm/lib/Target/BPF/BPFCORE.h b/llvm/lib/Target/BPF/BPFCORE.h
index af6425b16fa0..0c504412480d 100644
--- a/llvm/lib/Target/BPF/BPFCORE.h
+++ b/llvm/lib/Target/BPF/BPFCORE.h
@@ -13,6 +13,10 @@
 
 namespace llvm {
 
+class BasicBlock;
+class Instruction;
+class Module;
+
 class BPFCoreSharedInfo {
 public:
   enum PatchableRelocKind : uint32_t {
@@ -24,6 +28,10 @@ public:
     FIELD_RSHIFT_U64,
     BTF_TYPE_ID_LOCAL,
     BTF_TYPE_ID_REMOTE,
+    TYPE_EXISTENCE,
+    TYPE_SIZE,
+    ENUM_VALUE_EXISTENCE,
+    ENUM_VALUE,
 
     MAX_FIELD_RELOC_KIND,
   };
@@ -35,10 +43,32 @@ public:
     MAX_BTF_TYPE_ID_FLAG,
   };
 
+  enum PreserveTypeInfo : uint32_t {
+    PRESERVE_TYPE_INFO_EXISTENCE = 0,
+    PRESERVE_TYPE_INFO_SIZE,
+
+    MAX_PRESERVE_TYPE_INFO_FLAG,
+  };
+
+  enum PreserveEnumValue : uint32_t {
+    PRESERVE_ENUM_VALUE_EXISTENCE = 0,
+    PRESERVE_ENUM_VALUE,
+
+    MAX_PRESERVE_ENUM_VALUE_FLAG,
+  };
+
   /// The attribute attached to globals representing a field access
   static constexpr StringRef AmaAttr = "btf_ama";
   /// The attribute attached to globals representing a type id
   static constexpr StringRef TypeIdAttr = "btf_type_id";
+
+  /// llvm.bpf.passthrough builtin seq number
+  static uint32_t SeqNum;
+
+  /// Insert a bpf passthrough builtin function.
+  static Instruction *insertPassThrough(Module *M, BasicBlock *BB,
+                                        Instruction *Input,
+                                        Instruction *Before);
 };
 
 } // namespace llvm