From 21fc15d55387151f9b15a0e3b96cdda92c18e31a Mon Sep 17 00:00:00 2001
From: Robert Widmann <devteam.codafi@gmail.com>
Date: Mon, 23 Apr 2018 22:31:49 +0000
Subject: [LLVM-C] DIBuilder Bindings For Variable Expressions

Summary: Add DIBuilder bindings for (global) variable expressions, variable value expressions, and debug value intrinsic insertion.

Reviewers: harlanhaskins, deadalnix, whitequark

Reviewed By: whitequark

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D45979

llvm-svn: 330661
---
 llvm/tools/llvm-c-test/debuginfo.c | 33 ++++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 11 deletions(-)

(limited to 'llvm/tools/llvm-c-test')

diff --git a/llvm/tools/llvm-c-test/debuginfo.c b/llvm/tools/llvm-c-test/debuginfo.c
index b9c73f3b00d..411c4958d8c 100644
--- a/llvm/tools/llvm-c-test/debuginfo.c
+++ b/llvm/tools/llvm-c-test/debuginfo.c
@@ -36,11 +36,17 @@ int llvm_test_dibuilder(void) {
                               "/test/include/llvm-c-test.h", 27,
                               "", 0);
 
-  LLVMMetadataRef NameSpace =
-    LLVMDIBuilderCreateNameSpace(DIB, Module, "NameSpace", 9, false);
-
   LLVMMetadataRef Int64Ty =
     LLVMDIBuilderCreateBasicType(DIB, "Int64", 5, 64, 0);
+  LLVMMetadataRef GlobalVarValueExpr =
+    LLVMDIBuilderCreateConstantValueExpression(DIB, 0);
+  LLVMDIBuilderCreateGlobalVariableExpression(DIB, Module, "global", 6,
+                                              "", 0, File, 1, Int64Ty,
+                                              true, GlobalVarValueExpr,
+                                              NULL, 0);
+
+  LLVMMetadataRef NameSpace =
+    LLVMDIBuilderCreateNameSpace(DIB, Module, "NameSpace", 9, false);
 
   LLVMMetadataRef StructDbgElts[] = {Int64Ty, Int64Ty, Int64Ty};
   LLVMMetadataRef StructDbgTy =
@@ -109,14 +115,19 @@ int llvm_test_dibuilder(void) {
   LLVMMetadataRef FooLexicalBlock =
     LLVMDIBuilderCreateLexicalBlock(DIB, FunctionMetadata, File, 42, 0);
 
-  LLVMValueRef InnerFooFunction =
-    LLVMAddFunction(M, "foo_inner_scope", FooFuncTy);
-  LLVMMetadataRef InnerFunctionMetadata =
-    LLVMDIBuilderCreateFunction(DIB, FooLexicalBlock, "foo_inner_scope", 15,
-                                "foo_inner_scope", 15,
-                                File, 42, FunctionTy, true, true,
-                                42, 0, false);
-  LLVMSetSubprogram(InnerFooFunction, InnerFunctionMetadata);
+  LLVMBasicBlockRef FooVarBlock = LLVMAppendBasicBlock(FooFunction, "vars");
+  LLVMMetadataRef FooVarsLocation =
+    LLVMDIBuilderCreateDebugLocation(LLVMGetGlobalContext(), 43, 0,
+                                     FunctionMetadata, NULL);
+  LLVMMetadataRef FooVar1 =
+    LLVMDIBuilderCreateAutoVariable(DIB, FooLexicalBlock, "d", 1, File,
+                                    43, Int64Ty, true, 0, 0);
+  LLVMValueRef FooVal1 = LLVMConstInt(LLVMInt64Type(), 0, false);
+  LLVMMetadataRef FooVarValueExpr =
+    LLVMDIBuilderCreateConstantValueExpression(DIB, 0);
+
+  LLVMDIBuilderInsertDbgValueAtEnd(DIB, FooVal1, FooVar1, FooVarValueExpr,
+                                   FooVarsLocation, FooVarBlock);
 
   LLVMDIBuilderFinalize(DIB);
 
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