gentoo auto-resync : 07:08:2024 - 12:37:20

1 files changed, 24 insertions, 0 deletions

diff --git a/sci-libs/caffe2/files/caffe2-2.3.0-fix-libcpp.patch b/sci-libs/caffe2/files/caffe2-2.3.0-fix-libcpp.patch
new file mode 100644
index 000000000000..75808fd7ec50
--- /dev/null
+++ b/sci-libs/caffe2/files/caffe2-2.3.0-fix-libcpp.patch
@@ -0,0 +1,24 @@
+Workaround for libc++ issue https://github.com/llvm/llvm-project/issues/100802
+"reference to __host__ function 'memcpy' in __device__ function"
+--- a/c10/util/Half.h
++++ b/c10/util/Half.h
+@@ -227,7 +227,7 @@ C10_HOST_DEVICE inline float fp16_ieee_to_fp32_value(uint16_t h) {
+   // const float exp_scale = 0x1.0p-112f;
+   constexpr uint32_t scale_bits = (uint32_t)15 << 23;
+   float exp_scale_val = 0;
+-  std::memcpy(&exp_scale_val, &scale_bits, sizeof(exp_scale_val));
++  memcpy(&exp_scale_val, &scale_bits, sizeof(exp_scale_val));
+   const float exp_scale = exp_scale_val;
+   const float normalized_value =
+       fp32_from_bits((two_w >> 4) + exp_offset) * exp_scale;
+@@ -298,8 +298,8 @@ inline uint16_t fp16_ieee_from_fp32_value(float f) {
+   constexpr uint32_t scale_to_inf_bits = (uint32_t)239 << 23;
+   constexpr uint32_t scale_to_zero_bits = (uint32_t)17 << 23;
+   float scale_to_inf_val = 0, scale_to_zero_val = 0;
+-  std::memcpy(&scale_to_inf_val, &scale_to_inf_bits, sizeof(scale_to_inf_val));
+-  std::memcpy(
++  memcpy(&scale_to_inf_val, &scale_to_inf_bits, sizeof(scale_to_inf_val));
++  memcpy(
+       &scale_to_zero_val, &scale_to_zero_bits, sizeof(scale_to_zero_val));
+   const float scale_to_inf = scale_to_inf_val;
+   const float scale_to_zero = scale_to_zero_val;