[clang] [HIP] Correctly omit bundling with the new driver (PR #85842)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Joseph Huber (jhuber6)

<details>
<summary>Changes</summary>

Summary:
The HIP phases do not emit the offload bundler output when we do not
invoke the final linker phase in device only mode. Check this propery.


---
Full diff: https://github.com/llvm/llvm-project/pull/85842.diff


2 Files Affected:

- (modified) clang/lib/Driver/Driver.cpp (+11-6) 
- (modified) clang/test/Driver/hip-phases.hip (+12) 


``````````diff
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 1daf588142b3b4..e7d57635e03208 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -4641,17 +4641,22 @@ Action *Driver::BuildOffloadingActions(Compilation &C,
           DDep.add(*Input, *TCAndArch->first, TCAndArch->second.data(), Kind);
       OffloadActions.push_back(C.MakeAction<OffloadAction>(DDep, A->getType()));
 
+
       ++TCAndArch;
     }
   }
 
+  // HIP code in non-RDC mode will bundle the output if it invoked the linker.
+  bool ShouldBundleHIP =
+      C.isOffloadingHostKind(Action::OFK_HIP) &&
+      Args.hasFlag(options::OPT_gpu_bundle_output,
+                   options::OPT_no_gpu_bundle_output, true) &&
+      !Args.hasFlag(options::OPT_fgpu_rdc, options::OPT_fno_gpu_rdc, false) &&
+      !llvm::any_of(OffloadActions,
+                    [](Action *A) { return A->getType() != types::TY_Image; });
+
   // All kinds exit now in device-only mode except for non-RDC mode HIP.
-  if (offloadDeviceOnly() &&
-      (getFinalPhase(Args) == phases::Preprocess ||
-       !C.isOffloadingHostKind(Action::OFK_HIP) ||
-       !Args.hasFlag(options::OPT_gpu_bundle_output,
-                     options::OPT_no_gpu_bundle_output, true) ||
-       Args.hasFlag(options::OPT_fgpu_rdc, options::OPT_fno_gpu_rdc, false)))
+  if (offloadDeviceOnly() && !ShouldBundleHIP)
     return C.MakeAction<OffloadAction>(DDeps, types::TY_Nothing);
 
   if (OffloadActions.empty())
diff --git a/clang/test/Driver/hip-phases.hip b/clang/test/Driver/hip-phases.hip
index ca63d4304d3959..9be6a5577cbdc7 100644
--- a/clang/test/Driver/hip-phases.hip
+++ b/clang/test/Driver/hip-phases.hip
@@ -648,3 +648,15 @@
 // LTO-NEXT: 14: offload, "host-hip (x86_64-unknown-linux-gnu)" {2}, "device-hip (x86_64-unknown-linux-gnu)" {13}, ir
 // LTO-NEXT: 15: backend, {14}, assembler, (host-hip)
 // LTO-NEXT: 16: assembler, {15}, object, (host-hip)
+
+//
+// Test the new driver when not bundling
+//
+// RUN: %clang -### --target=x86_64-linux-gnu --offload-new-driver -ccc-print-phases \
+// RUN:        --offload-device-only --offload-arch=gfx90a -emit-llvm -c %s 2>&1 \
+// RUN: | FileCheck -check-prefix=DEVICE-ONLY %s
+//      DEVICE-ONLY: 0: input, "[[INPUT:.+]]", hip, (device-hip, gfx1030)
+// DEVICE-ONLY-NEXT: 1: preprocessor, {0}, hip-cpp-output, (device-hip, gfx1030)
+// DEVICE-ONLY-NEXT: 2: compiler, {1}, ir, (device-hip, gfx1030)
+// DEVICE-ONLY-NEXT: 3: backend, {2}, ir, (device-hip, gfx1030)
+// DEVICE-ONLY-NEXT: 4: offload, "device-hip (amdgcn-amd-amdhsa:gfx1030)" {3}, none

``````````

</details>


https://github.com/llvm/llvm-project/pull/85842