[clang] ab202aa - [Clang] Increase default architecture from sm_35 to sm_52

[Joseph Huber via cfe-commits]

Author: Joseph Huber
Date: 2023-08-02T17:30:23-05:00
New Revision: ab202aa7004a451ee9f496505256cfcb94d71747

URL: https://github.com/llvm/llvm-project/commit/ab202aa7004a451ee9f496505256cfcb94d71747
DIFF: https://github.com/llvm/llvm-project/commit/ab202aa7004a451ee9f496505256cfcb94d71747.diff

LOG: [Clang] Increase default architecture from  sm_35 to sm_52

We previously defaulted to `sm_35` for the purpose of unspecified
architecture. This was removed in new CUDA versions so we should bump
this up.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D156936

Added: 
    

Modified: 
    clang/include/clang/Basic/Cuda.h
    clang/test/Driver/cuda-cross-compiling.c

Removed: 
    


################################################################################
diff  --git a/clang/include/clang/Basic/Cuda.h b/clang/include/clang/Basic/Cuda.h
index 7f65d711bb3210..878f8d70f90c0a 100644
--- a/clang/include/clang/Basic/Cuda.h
+++ b/clang/include/clang/Basic/Cuda.h
@@ -117,7 +117,7 @@ enum class CudaArch {
            // public one.
   LAST,
 
-  CudaDefault = CudaArch::SM_35,
+  CudaDefault = CudaArch::SM_52,
   HIPDefault = CudaArch::GFX803,
 };
 

diff  --git a/clang/test/Driver/cuda-cross-compiling.c b/clang/test/Driver/cuda-cross-compiling.c
index a94e5801382d8f..12d0af3b45f32f 100644
--- a/clang/test/Driver/cuda-cross-compiling.c
+++ b/clang/test/Driver/cuda-cross-compiling.c
@@ -65,9 +65,9 @@
 // RUN: %clang --target=nvptx64-nvidia-cuda -### --cuda-path=%S/Inputs/CUDA/usr/local/cuda %s 2>&1 \
 // RUN:   | FileCheck -check-prefix=DEFAULT %s
 
-//      DEFAULT: -cc1" "-triple" "nvptx64-nvidia-cuda" "-S" {{.*}} "-target-cpu" "sm_35" "-target-feature" "+ptx{{[0-9]+}}" {{.*}} "-o" "[[PTX:.+]].s"
-// DEFAULT-NEXT: ptxas{{.*}}"-m64" "-O0" "--gpu-name" "sm_35" "--output-file" "[[CUBIN:.+]].cubin" "[[PTX]].s" "-c"
-// DEFAULT-NEXT: nvlink{{.*}}"-o" "a.out" "-arch" "sm_35" {{.*}} "[[CUBIN]].cubin"
+//      DEFAULT: -cc1" "-triple" "nvptx64-nvidia-cuda" "-S" {{.*}} "-target-cpu" "sm_52" "-target-feature" "+ptx{{[0-9]+}}" {{.*}} "-o" "[[PTX:.+]].s"
+// DEFAULT-NEXT: ptxas{{.*}}"-m64" "-O0" "--gpu-name" "sm_52" "--output-file" "[[CUBIN:.+]].cubin" "[[PTX]].s" "-c"
+// DEFAULT-NEXT: nvlink{{.*}}"-o" "a.out" "-arch" "sm_52" {{.*}} "[[CUBIN]].cubin"
 
 //
 // Test to ensure that we enable handling global constructors in a freestanding