[clang] [HIP] do not link runtime for -r (PR #85675)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-driver

Author: Yaxun (Sam) Liu (yxsamliu)

<details>
<summary>Changes</summary>

since it will cause duplicate symbols when the partially linked object is linked again.

Change-Id: I2aea39ad0d57d3dc80b6aff395d9506ab9ebbf4d

---
Full diff: https://github.com/llvm/llvm-project/pull/85675.diff


3 Files Affected:

- (modified) clang/lib/Driver/ToolChains/CommonArgs.cpp (+2-1) 
- (modified) clang/test/Driver/hip-partial-link.hip (+1-1) 
- (modified) clang/test/Driver/hip-runtime-libs-linux.hip (+5) 


``````````diff
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index 83015b0cb81a6e..4cecdd3168a28e 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -2830,7 +2830,8 @@ void tools::addHIPRuntimeLibArgs(const ToolChain &TC, Compilation &C,
                                  llvm::opt::ArgStringList &CmdArgs) {
   if ((C.getActiveOffloadKinds() & Action::OFK_HIP) &&
       !Args.hasArg(options::OPT_nostdlib) &&
-      !Args.hasArg(options::OPT_no_hip_rt)) {
+      !Args.hasArg(options::OPT_no_hip_rt) &&
+      !Args.hasArg(options::OPT_r)) {
     TC.AddHIPRuntimeLibArgs(Args, CmdArgs);
   } else {
     // Claim "no HIP libraries" arguments if any
diff --git a/clang/test/Driver/hip-partial-link.hip b/clang/test/Driver/hip-partial-link.hip
index faa185972abc33..c8451ec81ed37e 100644
--- a/clang/test/Driver/hip-partial-link.hip
+++ b/clang/test/Driver/hip-partial-link.hip
@@ -47,7 +47,7 @@
 // OBJ:  D __hip_gpubin_handle_[[ID2]]
 
 // RUN: %clang -v --target=x86_64-unknown-linux-gnu --no-offload-new-driver \
-// RUN:   --hip-link -no-hip-rt -fgpu-rdc --offload-arch=gfx906 \
+// RUN:   --hip-link -fgpu-rdc --offload-arch=gfx906 \
 // RUN:   -fuse-ld=lld -nostdlib -r %t.main.o %t.lib.o -o %t.final.o \
 // RUN:   2>&1 | FileCheck -check-prefix=LINK-O %s
 // LINK-O-NOT: Found undefined HIP {{.*}}symbol
diff --git a/clang/test/Driver/hip-runtime-libs-linux.hip b/clang/test/Driver/hip-runtime-libs-linux.hip
index 142582963c958f..a4cd2733114b69 100644
--- a/clang/test/Driver/hip-runtime-libs-linux.hip
+++ b/clang/test/Driver/hip-runtime-libs-linux.hip
@@ -43,6 +43,11 @@
 // RUN:   --rocm-path=%S/Inputs/rocm %t.o 2>&1 \
 // RUN:   | FileCheck -check-prefixes=NOHIPRT %s
 
+// Test HIP runtime lib is not linked with -r.
+// RUN: %clang -### --hip-link -r --target=x86_64-linux-gnu \
+// RUN:   --rocm-path=%S/Inputs/rocm %t.o 2>&1 \
+// RUN:   | FileCheck -check-prefixes=NOHIPRT %s
+
 // Test HIP runtime lib is linked without hip-link if there is HIP input file.
 // RUN: %clang -### --target=x86_64-linux-gnu -nogpuinc -nogpulib \
 // RUN:   --rocm-path=%S/Inputs/rocm %s 2>&1 \

``````````

</details>


https://github.com/llvm/llvm-project/pull/85675