[llvm] [NFC][DirectX] Fix GCC 7 build failure caused by a6d7b2f5a931 (PR #218297)

[Jinsong Ji via llvm-commits]

https://github.com/jsji created https://github.com/llvm/llvm-project/pull/218297

GCC 7 cannot determine default-constructibility of ResourceBinding
when it has a default member initializer and is used inside
std::variant. Add explicit default and parameterized constructors.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply at anthropic.com>


>From 42a4000d3646b9d9cc60e3fc339702a59aa622b4 Mon Sep 17 00:00:00 2001
From: Jinsong Ji <jinsong.ji at intel.com>
Date: Sun, 23 Aug 2026 02:45:56 +0200
Subject: [PATCH] [NFC][DirectX] Fix GCC 7 build failure caused by a6d7b2f5a931

GCC 7 cannot determine default-constructibility of ResourceBinding
when it has a default member initializer and is used inside
std::variant. Add explicit default and parameterized constructors.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply at anthropic.com>
---
 llvm/include/llvm/Analysis/DXILResource.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/llvm/include/llvm/Analysis/DXILResource.h b/llvm/include/llvm/Analysis/DXILResource.h
index 414a8269dd60f..6d66e579dd452 100644
--- a/llvm/include/llvm/Analysis/DXILResource.h
+++ b/llvm/include/llvm/Analysis/DXILResource.h
@@ -377,6 +377,12 @@ class ResourceInfo {
     uint32_t LowerBound;
     uint32_t Size;
 
+    ResourceBinding() : BindingID(0), Space(0), LowerBound(0), Size(0) {}
+    ResourceBinding(uint32_t BindingID, uint32_t Space, uint32_t LowerBound,
+                    uint32_t Size)
+        : BindingID(BindingID), Space(Space), LowerBound(LowerBound),
+          Size(Size) {}
+
     bool operator==(const ResourceBinding &RHS) const {
       return std::tie(BindingID, Space, LowerBound, Size) ==
              std::tie(RHS.BindingID, RHS.Space, RHS.LowerBound, RHS.Size);