[flang-commits] [flang] [flang][cuda] Do not consider SHARED array as host array (PR #120306)

[Valentin Clement バレンタイン クレメン via flang-commits]

https://github.com/clementval created https://github.com/llvm/llvm-project/pull/120306

Update the current `FindHostArray` to not return shared array as host array. 

>From 6732a3493f7a3c4ae83756973993c8f475684693 Mon Sep 17 00:00:00 2001
From: Valentin Clement <clementval at gmail.com>
Date: Tue, 17 Dec 2024 13:33:02 -0800
Subject: [PATCH] [flang][cuda] Do not consider SHARED array as host array

---
 flang/lib/Semantics/check-cuda.cpp | 1 +
 flang/test/Semantics/cuf09.cuf     | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/flang/lib/Semantics/check-cuda.cpp b/flang/lib/Semantics/check-cuda.cpp
index 9c044a47c79834..7e458d3b55a89c 100644
--- a/flang/lib/Semantics/check-cuda.cpp
+++ b/flang/lib/Semantics/check-cuda.cpp
@@ -114,6 +114,7 @@ struct FindHostArray
               (details->cudaDataAttr() &&
                   *details->cudaDataAttr() != common::CUDADataAttr::Device &&
                   *details->cudaDataAttr() != common::CUDADataAttr::Managed &&
+                  *details->cudaDataAttr() != common::CUDADataAttr::Shared &&
                   *details->cudaDataAttr() != common::CUDADataAttr::Unified))) {
         return &symbol;
       }
diff --git a/flang/test/Semantics/cuf09.cuf b/flang/test/Semantics/cuf09.cuf
index e0ca814aec26a0..3a9efecbdb60b7 100644
--- a/flang/test/Semantics/cuf09.cuf
+++ b/flang/test/Semantics/cuf09.cuf
@@ -28,6 +28,13 @@ module m
     i = threadIdx%x
     a(i) = i
   end subroutine
+
+  attributes(global) subroutine sharedarray(a)
+    integer, device :: a(10)
+    integer, shared :: s(10)
+    i = threadIdx%x
+    a(i) = s(10) ! ok, a is device and s is shared
+  end subroutine
 end
 
 program main