Enable the cfg stdarch_intel_sde to fix the segfault when running the tests under SDE

Author: antoyo

.github/workflows/stdarch.yml

@@ -36,6 +36,7 @@ jobs:
     - name: Install packages
       run: sudo apt-get install ninja-build ripgrep
 
+    # TODO: remove when we have binutils version 2.43 in the repo.
     - name: Install more recent binutils
       run: |
         echo "deb http://archive.ubuntu.com/ubuntu oracular main universe" | sudo tee /etc/apt/sources.list.d/oracular-copies.list
@@ -102,4 +103,5 @@ jobs:
       run: |
         # FIXME: these tests fail when the sysroot is compiled with LTO because of a missing symbol in proc-macro.
         # TODO: remove --skip test_mm512_stream_ps when stdarch is updated in rustc.
-        STDARCH_TEST_EVERYTHING=1 CHANNEL=release CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUNNER="${{ matrix.cargo_runner }}" TARGET=x86_64-unknown-linux-gnu CG_RUSTFLAGS="-Ainternal_features" ./y.sh cargo test --manifest-path build/build_sysroot/sysroot_src/library/stdarch/Cargo.toml -- --skip rtm --skip tbm --skip sse4a --skip test_mm512_stream_ps
+        # TODO: remove --skip test_tile_ when it's implemented.
+        STDARCH_TEST_EVERYTHING=1 CHANNEL=release CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUNNER="${{ matrix.cargo_runner }}" TARGET=x86_64-unknown-linux-gnu CG_RUSTFLAGS="-Ainternal_features --cfg stdarch_intel_sde" ./y.sh cargo test --manifest-path build/build_sysroot/sysroot_src/library/stdarch/Cargo.toml -- --skip rtm --skip tbm --skip sse4a --skip test_mm512_stream_ps --skip test_tile_