Merge pull request #22 from cpunion/add-missing-funcs

Add removed DIBuilder.InsertDeclareAtEnd

Author: xushiwei

backports.cpp

@@ -62,3 +62,17 @@ void LLVMGoDIBuilderInsertDbgValueRecordAtEnd(
   LLVMDIBuilderInsertDbgValueAtEnd(Builder, Val, VarInfo, Expr, DebugLoc, Block);
 #endif
 }
+
+void LLVMGoDIBuilderInsertDbgDeclareRecordAtEnd(
+    LLVMDIBuilderRef Builder, LLVMValueRef Val, LLVMMetadataRef VarInfo,
+    LLVMMetadataRef Expr, LLVMMetadataRef DebugLoc, LLVMBasicBlockRef Block) {
+#if LLVM_VERSION_MAJOR >= 19
+  // Note: this returns a LLVMDbgRecordRef. Previously, InsertDeclareAtEnd would
+  // return a Declare. But since the type changed, and I'd like to keep the API
+  // consistent across LLVM versions, I decided to drop the return value.
+  LLVMDIBuilderInsertDeclareRecordAtEnd(Builder, Val, VarInfo, Expr, DebugLoc, Block);
+#else
+  // Old llvm.dbg.* API.
+  LLVMDIBuilderInsertDeclareAtEnd(Builder, Val, VarInfo, Expr, DebugLoc, Block);
+#endif
+}

backports.h

@@ -14,6 +14,10 @@ void LLVMGoDIBuilderInsertDbgValueRecordAtEnd(
     LLVMDIBuilderRef Builder, LLVMValueRef Val, LLVMMetadataRef VarInfo,
     LLVMMetadataRef Expr, LLVMMetadataRef DebugLoc, LLVMBasicBlockRef Block);
 
+void LLVMGoDIBuilderInsertDbgDeclareRecordAtEnd(
+    LLVMDIBuilderRef Builder, LLVMValueRef Val, LLVMMetadataRef VarInfo,
+    LLVMMetadataRef Expr, LLVMMetadataRef DebugLoc, LLVMBasicBlockRef Block);
+
 #ifdef __cplusplus
 }
 #endif /* defined(__cplusplus) */

dibuilder.go

@@ -610,6 +610,14 @@ func (d *DIBuilder) CreateExpression(addr []uint64) Metadata {
 	return Metadata{C: result}
 }
 
+// InsertDeclareAtEnd inserts a call to llvm.dbg.declare at the end of the
+// specified basic block for the given value and associated debug metadata.
+func (d *DIBuilder) InsertDeclareAtEnd(v Value, diVarInfo, expr Metadata, l DebugLoc, bb BasicBlock) {
+	loc := C.LLVMDIBuilderCreateDebugLocation(
+		d.m.Context().C, C.uint(l.Line), C.uint(l.Col), l.Scope.C, l.InlinedAt.C)
+	C.LLVMGoDIBuilderInsertDbgDeclareRecordAtEnd(d.ref, v.C, diVarInfo.C, expr.C, loc, bb.C)
+}
+
 // InsertValueAtEnd inserts a call to llvm.dbg.value at the end of the
 // specified basic block for the given value and associated debug metadata.
 func (d *DIBuilder) InsertValueAtEnd(v Value, diVarInfo, expr Metadata, l DebugLoc, bb BasicBlock) {