From 023e4b9fedbbd2e81ec684a359b040a3a6fd065e Mon Sep 17 00:00:00 2001
From: Lee Cannon <leecannon@leecannon.xyz>
Date: Thu, 30 Sep 2021 19:51:05 +0100
Subject: [PATCH] stage2 - add llvm bindings to create attributes with string
 values

---
 src/codegen/llvm.zig          | 20 ++++++++++++++++++++
 src/codegen/llvm/bindings.zig |  3 +++
 2 files changed, 23 insertions(+)

diff --git a/src/codegen/llvm.zig b/src/codegen/llvm.zig
index 4349fce4d9..1fb657e915 100644
--- a/src/codegen/llvm.zig
+++ b/src/codegen/llvm.zig
@@ -1389,10 +1389,30 @@ pub const DeclGen = struct {
         val.addAttributeAtIndex(index, llvm_attr);
     }
 
+    fn addAttrString(
+        dg: *DeclGen,
+        val: *const llvm.Value,
+        index: llvm.AttributeIndex,
+        name: []const u8,
+        value: []const u8,
+    ) void {
+        const llvm_attr = dg.context.createStringAttribute(
+            name.ptr,
+            @intCast(c_uint, name.len),
+            value.ptr,
+            @intCast(c_uint, value.len),
+        );
+        val.addAttributeAtIndex(index, llvm_attr);
+    }
+
     fn addFnAttr(dg: DeclGen, val: *const llvm.Value, name: []const u8) void {
         dg.addAttr(val, std.math.maxInt(llvm.AttributeIndex), name);
     }
 
+    fn addFnAttrString(dg: *DeclGen, val: *const llvm.Value, name: []const u8, value: []const u8) void {
+        dg.addAttrString(val, std.math.maxInt(llvm.AttributeIndex), name, value);
+    }
+
     fn removeFnAttr(fn_val: *const llvm.Value, name: []const u8) void {
         removeAttr(fn_val, std.math.maxInt(llvm.AttributeIndex), name);
     }
diff --git a/src/codegen/llvm/bindings.zig b/src/codegen/llvm/bindings.zig
index 29a46a81ee..ab4cf97350 100644
--- a/src/codegen/llvm/bindings.zig
+++ b/src/codegen/llvm/bindings.zig
@@ -28,6 +28,9 @@ pub const Context = opaque {
     pub const createEnumAttribute = LLVMCreateEnumAttribute;
     extern fn LLVMCreateEnumAttribute(*const Context, KindID: c_uint, Val: u64) *const Attribute;
 
+    pub const createStringAttribute = LLVMCreateStringAttribute;
+    extern fn LLVMCreateStringAttribute(*const Context, Key: [*]const u8, Key_Len: c_uint, Value: [*]const u8, Value_Len: c_uint) *const Attribute;
+
     pub const intType = LLVMIntTypeInContext;
     extern fn LLVMIntTypeInContext(C: *const Context, NumBits: c_uint) *const Type;