From 980688cdaf274e80394bd9ead0bba957c40eaab2 Mon Sep 17 00:00:00 2001
From: Konstantin Zhuravlyov <kzhuravl_dev@outlook.com>
Date: Mon, 19 Dec 2016 16:54:24 +0000
Subject: [PATCH] [AMDGPU] When unifying metadata, add operands to named
 metadata individually

Differential Revision: https://reviews.llvm.org/D27725

llvm-svn: 290114
---
 llvm/lib/Target/AMDGPU/AMDGPUUnifyMetadata.cpp |  8 +++++---
 llvm/test/CodeGen/AMDGPU/unify-metadata.ll     | 17 +++++++++++------
 2 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUUnifyMetadata.cpp b/llvm/lib/Target/AMDGPU/AMDGPUUnifyMetadata.cpp
index 1118eee..bf501a1 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUUnifyMetadata.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUUnifyMetadata.cpp
@@ -100,7 +100,9 @@ namespace {
 
     NamedMD->eraseFromParent();
     NamedMD = M.getOrInsertNamedMetadata(Name);
-    NamedMD->addOperand(MDNode::get(M.getContext(), All));
+    for (const auto &MD : All)
+      NamedMD->addOperand(MDNode::get(M.getContext(), MD));
+
     return true;
   }
 };
@@ -133,10 +135,10 @@ bool AMDGPUUnifyMetadata::runOnModule(Module &M) {
 
   bool Changed = false;
 
-  for (auto &I:Vers)
+  for (auto &I : Vers)
     Changed |= unifyVersionMD(M, I, true);
 
-  for (auto &I:Exts)
+  for (auto &I : Exts)
     Changed |= unifyExtensionMD(M, I);
 
   return Changed;
diff --git a/llvm/test/CodeGen/AMDGPU/unify-metadata.ll b/llvm/test/CodeGen/AMDGPU/unify-metadata.ll
index 2b8eec8..9549b08 100644
--- a/llvm/test/CodeGen/AMDGPU/unify-metadata.ll
+++ b/llvm/test/CodeGen/AMDGPU/unify-metadata.ll
@@ -4,23 +4,28 @@
 ; modules for records such as opencl.ocl.version, llvm.ident and similar.
 
 ; ALL-DAG: !opencl.ocl.version = !{![[OCL_VER:[0-9]+]]}
-; ALL-DAG: !llvm.ident = !{![[LLVM_IDENT:[0-9]+]]}
-; ALL-DAG: !opencl.used.extensions = !{![[USED_EXT:[0-9]+]]}
+; ALL-DAG: !llvm.ident = !{![[LLVM_IDENT_0:[0-9]+]], ![[LLVM_IDENT_1:[0-9]+]]}
+; ALL-DAG: !opencl.used.extensions = !{![[USED_EXT_0:[0-9]+]], ![[USED_EXT_1:[0-9]+]], ![[USED_EXT_2:[0-9]+]]}
+
 ; ALL-DAG: ![[OCL_VER]] = !{i32 1, i32 2}
-; ALL-DAG: ![[LLVM_IDENT]] = !{!"clang version 4.0 "}
-; ALL-DAG: ![[USED_EXT]] = !{!"cl_images", !"cl_khr_fp16", !"cl_doubles"}
+; ALL-DAG: ![[LLVM_IDENT_0]] = !{!"clang version 4.0"}
+; ALL-DAG: ![[LLVM_IDENT_1]] = !{!"clang version 4.0 (rLXXXXXX)"}
+; ALL-DAG: ![[USED_EXT_0]] = !{!"cl_images"}
+; ALL-DAG: ![[USED_EXT_1]] = !{!"cl_khr_fp16"}
+; ALL-DAG: ![[USED_EXT_2]] = !{!"cl_doubles"}
 
 define void @test() {
    ret void
 }
 
 !opencl.ocl.version = !{!1, !0, !0, !0}
-!llvm.ident = !{!2, !2, !2, !2}
+!llvm.ident = !{!2, !2, !2, !2, !6}
 !opencl.used.extensions = !{!3, !3, !4, !5}
 
 !0 = !{i32 2, i32 0}
 !1 = !{i32 1, i32 2}
-!2 = !{!"clang version 4.0 "}
+!2 = !{!"clang version 4.0"}
 !3 = !{!"cl_images", !"cl_khr_fp16"}
 !4 = !{!"cl_images", !"cl_doubles"}
 !5 = !{}
+!6 = !{!"clang version 4.0 (rLXXXXXX)"}
-- 
2.7.4