https://github.com/shiltian created
https://github.com/llvm/llvm-project/pull/138365
None
>From acc89cf6a85a8fb758b528a4e2ae587fccd61ce5 Mon Sep 17 00:00:00 2001
From: Shilei Tian <i...@tianshilei.me>
Date: Fri, 2 May 2025 19:41:11 -0400
Subject: [PATCH] [Clang][Driver] Enable internalization by default for AMDGPU
---
clang/lib/Driver/ToolChains/Clang.cpp | 6 ++++++
clang/test/Driver/openmp-offload-gpu.c | 7 +++++++
2 files changed, 13 insertions(+)
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp
b/clang/lib/Driver/ToolChains/Clang.cpp
index 6dabf9d842b7b..093f6fe9d5c77 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -9284,6 +9284,12 @@ void LinkerWrapper::ConstructJob(Compilation &C, const
JobAction &JA,
CmdArgs.push_back(Args.MakeArgString(
"--device-linker=" + TC->getTripleString() + "=" + Arg));
+ // Enable internalization for AMDGPU.
+ if (TC->getTriple().isAMDGPU())
+ CmdArgs.push_back(
+ Args.MakeArgString("--device-linker=" + TC->getTripleString() +
+ "=-plugin-opt=-amdgpu-internalize-symbols"));
+
// Forward the LTO mode relying on the Driver's parsing.
if (C.getDriver().getOffloadLTOMode() == LTOK_Full)
CmdArgs.push_back(Args.MakeArgString(
diff --git a/clang/test/Driver/openmp-offload-gpu.c
b/clang/test/Driver/openmp-offload-gpu.c
index 5ad038b7dbd37..73dc5a7f75d5b 100644
--- a/clang/test/Driver/openmp-offload-gpu.c
+++ b/clang/test/Driver/openmp-offload-gpu.c
@@ -393,3 +393,10 @@
// RUN: --offload-arch=sm_52 -foffload-lto=thin -nogpulib -nogpuinc %s
2>&1 \
// RUN: | FileCheck --check-prefix=THINLTO-SM52 %s
// THINLTO-SM52: --device-compiler=nvptx64-nvidia-cuda=-flto=thin
+
+// Check that internalization is enabled for OpenMP offloading on AMDGPU.
+//
+// RUN: %clang -### --target=x86_64-unknown-linux-gnu -fopenmp=libomp \
+// RUN: --offload-arch=gfx906 -nogpulib -nogpuinc %s 2>&1 \
+// RUN: | FileCheck --check-prefix=INTERNALIZATION-GFX906 %s
+// INTERNALIZATION-GFX906:
--device-linker=amdgcn-amd-amdhsa=-plugin-opt=-amdgpu-internalize-symbols
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