[llvm] [AMDGPU] InstCombine: fold invalid calls to amdgcn intrinsics into poison values (PR #191904)

[via llvm-commits]

github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

<details>
<summary>
You can test this locally with the following command:
</summary>

``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp --diff_from_common_commit
``````````

:warning:
The reproduction instructions above might return results for more than one PR
in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
:warning:

</details>

<details>
<summary>
View the diff from clang-format here.
</summary>

``````````diff
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp b/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp
index 03e9a0177..b85b46d32 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp
@@ -767,11 +767,10 @@ GCNTTIImpl::instCombineIntrinsic(InstCombiner &IC, IntrinsicInst &II) const {
   case Intrinsic::amdgcn_workgroup_id_x:
   case Intrinsic::amdgcn_workgroup_id_y:
   case Intrinsic::amdgcn_workgroup_id_z: {
-    StringRef Attr = IID == Intrinsic::amdgcn_workgroup_id_x
-                         ? "amdgpu-no-workgroup-id-x"
-                     : IID == Intrinsic::amdgcn_workgroup_id_y
-                         ? "amdgpu-no-workgroup-id-y"
-                         : "amdgpu-no-workgroup-id-z";
+    StringRef Attr =
+        IID == Intrinsic::amdgcn_workgroup_id_x   ? "amdgpu-no-workgroup-id-x"
+        : IID == Intrinsic::amdgcn_workgroup_id_y ? "amdgpu-no-workgroup-id-y"
+                                                  : "amdgpu-no-workgroup-id-z";
     if (II.getFunction()->hasFnAttribute(Attr))
       return IC.replaceInstUsesWith(II, PoisonValue::get(II.getType()));
     return std::nullopt;
@@ -779,11 +778,10 @@ GCNTTIImpl::instCombineIntrinsic(InstCombiner &IC, IntrinsicInst &II) const {
   case Intrinsic::amdgcn_workitem_id_x:
   case Intrinsic::amdgcn_workitem_id_y:
   case Intrinsic::amdgcn_workitem_id_z: {
-    StringRef Attr = IID == Intrinsic::amdgcn_workitem_id_x
-                         ? "amdgpu-no-workitem-id-x"
-                     : IID == Intrinsic::amdgcn_workitem_id_y
-                         ? "amdgpu-no-workitem-id-y"
-                         : "amdgpu-no-workitem-id-z";
+    StringRef Attr =
+        IID == Intrinsic::amdgcn_workitem_id_x   ? "amdgpu-no-workitem-id-x"
+        : IID == Intrinsic::amdgcn_workitem_id_y ? "amdgpu-no-workitem-id-y"
+                                                 : "amdgpu-no-workitem-id-z";
     if (II.getFunction()->hasFnAttribute(Attr))
       return IC.replaceInstUsesWith(II, PoisonValue::get(II.getType()));
     return std::nullopt;
@@ -796,11 +794,10 @@ GCNTTIImpl::instCombineIntrinsic(InstCombiner &IC, IntrinsicInst &II) const {
   case Intrinsic::amdgcn_cluster_id_x:
   case Intrinsic::amdgcn_cluster_id_y:
   case Intrinsic::amdgcn_cluster_id_z: {
-    StringRef Attr = IID == Intrinsic::amdgcn_cluster_id_x
-                         ? "amdgpu-no-cluster-id-x"
-                     : IID == Intrinsic::amdgcn_cluster_id_y
-                         ? "amdgpu-no-cluster-id-y"
-                         : "amdgpu-no-cluster-id-z";
+    StringRef Attr =
+        IID == Intrinsic::amdgcn_cluster_id_x   ? "amdgpu-no-cluster-id-x"
+        : IID == Intrinsic::amdgcn_cluster_id_y ? "amdgpu-no-cluster-id-y"
+                                                : "amdgpu-no-cluster-id-z";
     if (II.getFunction()->hasFnAttribute(Attr))
       return IC.replaceInstUsesWith(II, PoisonValue::get(II.getType()));
     return std::nullopt;

``````````

</details>


https://github.com/llvm/llvm-project/pull/191904