Bump PyTorch pin to 20250706 (#12253)

Hash is from https://hud2.pytorch.org/hud/pytorch/pytorch/nightly/0 .
Picking up rename of torch/standalone in this one.

Author: swolchok

.ci/docker/ci_commit_pins/pytorch.txt

@@ -1 +1 @@
-9b498d3bb28b8e3411ce464dd2755c5b96d92c8f
+7cda4017ddda554752e89069ae205be5e8388f59

.ci/scripts/check_c10_sync.sh

@@ -12,4 +12,4 @@ pushd pytorch
 git checkout "$pytorch_pin"
 popd
 "$(dirname "${BASH_SOURCE[0]}")"/compare_dirs.sh runtime/core/portable_type/c10/c10 pytorch/c10
-"$(dirname "${BASH_SOURCE[0]}")"/compare_dirs.sh runtime/core/portable_type/c10/torch/standalone pytorch/torch/standalone
+"$(dirname "${BASH_SOURCE[0]}")"/compare_dirs.sh runtime/core/portable_type/c10/torch/headeronly pytorch/torch/headeronly

install_requirements.py

@@ -71,7 +71,7 @@ def python_is_compatible():
 #
 # NOTE: If you're changing, make the corresponding change in .ci/docker/ci_commit_pins/pytorch.txt
 # by picking the hash from the same date in https://hud.pytorch.org/hud/pytorch/pytorch/nightly/
-NIGHTLY_VERSION = "dev20250625"
+NIGHTLY_VERSION = "dev20250706"
 
 
 def install_requirements(use_pytorch_nightly):
@@ -89,7 +89,7 @@ def install_requirements(use_pytorch_nightly):
         # Setting use_pytorch_nightly to false to test the pinned PyTorch commit. Note
         # that we don't need to set any version number there because they have already
         # been installed on CI before this step, so pip won't reinstall them
-        f"torch==2.8.0.{NIGHTLY_VERSION}" if use_pytorch_nightly else "torch",
+        f"torch==2.9.0.{NIGHTLY_VERSION}" if use_pytorch_nightly else "torch",
     ]
 
     # Install the requirements for core ExecuTorch package.
@@ -151,7 +151,7 @@ def install_optional_example_requirements(use_pytorch_nightly):
     print("Installing torch domain libraries")
     DOMAIN_LIBRARIES = [
         (
-            f"torchvision==0.23.0.{NIGHTLY_VERSION}"
+            f"torchvision==0.24.0.{NIGHTLY_VERSION}"
             if use_pytorch_nightly
             else "torchvision"
         ),

runtime/core/portable_type/c10/README.md

@@ -12,7 +12,7 @@ would cause all headers in that directory to be includeable with
 `runtime/core/portable_type/complex.h`, which would shadow the C99
 `complex.h` standard header.
 
-`torch/standalone` has been added as an extra "even more bottom of
+`torch/headeronly` has been added as an extra "even more bottom of
 stack" directory in PyTorch, so we have to add it to our sync
 here. The extra "stutter" c10 directory causing `c10/torch/standlone`
 is unfortunately awkward; perhaps we can rename the top-level

runtime/core/portable_type/c10/c10/macros/Export.h

@@ -5,7 +5,7 @@
 #include <c10/macros/cmake_macros.h>
 #endif // C10_USING_CUSTOM_GENERATED_MACROS
 
-#include <torch/standalone/macros/Export.h>
+#include <torch/headeronly/macros/Export.h>
 
 // This one is being used by libtorch.so
 #ifdef CAFFE2_BUILD_MAIN_LIB

runtime/core/portable_type/c10/c10/macros/Macros.h

@@ -312,7 +312,21 @@ constexpr uint32_t CUDA_THREADS_PER_BLOCK_FALLBACK = 256;
 #endif
 
 #if defined(USE_ROCM)
-#define C10_WARP_SIZE warpSize // = 64 or 32 (Defined in hip_runtime.h)
+// C10_WARP_SIZE is only allowed for device code.
+// Host code _must_ use at::cuda::warp_size()
+// HIP header used to define warpSize as a constexpr that was either 32 or 64
+// depending on the target device, and then always set it to 64 for host code.
+// Host pass of HIP compiler needs C10_WARP_SIZE defined to _something_ so we
+// set it to something unreasonable to trigger obvious host code errors.
+#if defined(__HIP_DEVICE_COMPILE__)
+#if defined(__GFX9__)
+static constexpr int C10_WARP_SIZE = 64;
+#else // __GFX9__
+static constexpr int C10_WARP_SIZE = 32;
+#endif // __GFX9__
+#else
+static constexpr int C10_WARP_SIZE = 1;
+#endif // __HIP_DEVICE_COMPILE__
 #else
 #define C10_WARP_SIZE 32
 #endif

runtime/core/portable_type/c10/c10/targets.bzl

@@ -125,7 +125,7 @@ def define_common_targets():
                 "@EXECUTORCH_CLIENTS",
             ],
             exported_deps = [
-                "//executorch/runtime/core/portable_type/c10/torch/standalone:torch_standalone_headers",
+                "//executorch/runtime/core/portable_type/c10/torch/headeronly:torch_headeronly",
             ] + select({
                 "DEFAULT": [],
                 # Half-inl.h depends on vec_half.h from ATen, but only when building for x86.

runtime/core/portable_type/c10/c10/util/irange.h

@@ -24,7 +24,7 @@ struct integer_iterator {
   using pointer = I*;
   using reference = I&;
 
-  explicit constexpr integer_iterator(I value) : value(value) {}
+  explicit constexpr integer_iterator(I val) : value(val) {}
 
   constexpr I operator*() const {
     return value;