Rollup merge of rust-lang#158497 - folkertdev:stdarch-sync-2026-06-27, r=folkertdev

stdarch subtree update

Subtree update of `stdarch` to rust-lang/stdarch@62d5595.

Created using https://github.com/rust-lang/josh-sync.

r? @ghost

Author: jhpratt

compiler/rustc_codegen_cranelift/src/intrinsics/llvm.rs

@@ -19,7 +19,7 @@ pub(crate) fn codegen_llvm_intrinsic_call<'tcx>(
     }
 
     match intrinsic {
-        "llvm.prefetch" => {
+        "llvm.prefetch.p0" => {
             // Nothing to do. This is merely a perf hint.
         }
 

compiler/rustc_codegen_gcc/src/intrinsic/llvm.rs

@@ -1044,7 +1044,7 @@ pub fn intrinsic<'gcc, 'tcx>(name: &str, cx: &CodegenCx<'gcc, 'tcx>) -> Function
 #[cfg(feature = "master")]
 pub fn intrinsic<'gcc, 'tcx>(name: &str, cx: &CodegenCx<'gcc, 'tcx>) -> Function<'gcc> {
     let gcc_name = match name {
-        "llvm.prefetch" => {
+        "llvm.prefetch.p0" => {
             let gcc_name = "__builtin_prefetch";
             let func = cx.context.get_builtin_function(gcc_name);
             cx.functions.borrow_mut().insert(gcc_name.to_string(), func);

compiler/rustc_codegen_llvm/src/intrinsic.rs

@@ -412,7 +412,7 @@ impl<'ll, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> {
                 let ptr = args[0].immediate();
                 let locality = fn_args.const_at(1).to_leaf().to_i32();
                 self.call_intrinsic(
-                    "llvm.prefetch",
+                    "llvm.prefetch.p0",
                     &[self.val_ty(ptr)],
                     &[
                         ptr,

library/stdarch/.github/workflows/main.yml

@@ -337,6 +337,8 @@ jobs:
         cargo run --bin=stdarch-gen-loongarch --release -- crates/stdarch-gen-loongarch/lasx.spec
         git diff --exit-code
     - name: Check hexagon
+      env:
+        STDARCH_GEN_MODE: check
       run: |
         cargo run -p stdarch-gen-hexagon --release
         git diff --exit-code

library/stdarch/Cargo.lock

@@ -268,6 +268,22 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
 
+[[package]]
+name = "errno"
+version = "0.3.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
+dependencies = [
+ "libc",
+ "windows-sys",
+]
+
+[[package]]
+name = "fastrand"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f1f227452a390804cdb637b74a86990f2a7d7ba4b7d5693aac9b4dd6defd8d6"
+
 [[package]]
 name = "find-msvc-tools"
 version = "0.1.9"
@@ -282,13 +298,14 @@ checksum = "d9c4f5dac5e15c24eb999c26181a6ca40b39fe946cbe4c263c7209467bc83af2"
 
 [[package]]
 name = "getrandom"
-version = "0.2.17"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ff2abc00be7fca6ebc474524697ae276ad847ad0a6b3faa4bcb027e9a4614ad0"
+checksum = "899def5c37c4fd7b2664648c28120ecec138e4d395b459e5ca34f9cce2dd77fd"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi",
+ "r-efi 5.3.0",
+ "wasip2",
 ]
 
 [[package]]
@@ -299,7 +316,7 @@ checksum = "0de51e6874e94e7bf76d726fc5d13ba782deca734ff60d5bb2fb2607c7406555"
 dependencies = [
  "cfg-if",
  "libc",
- "r-efi",
+ "r-efi 6.0.0",
  "rand_core 0.10.0",
  "wasip2",
  "wasip3",
@@ -445,6 +462,12 @@ version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
 
+[[package]]
+name = "linux-raw-sys"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32a66949e030da00e8c7d4434b251670a91556f4144941d37452769c25d58a53"
+
 [[package]]
 name = "log"
 version = "0.4.29"
@@ -457,6 +480,12 @@ version = "2.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8ca58f447f06ed17d5fc4043ce1b10dd205e060fb3ce5b979b8ed8e59ff3f79"
 
+[[package]]
+name = "once_cell"
+version = "1.21.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f7c3e4beb33f85d45ae3e3a1792185706c8e16d043238c593331cc7cd313b50"
+
 [[package]]
 name = "once_cell_polyfill"
 version = "1.70.2"
@@ -529,7 +558,7 @@ checksum = "95c589f335db0f6aaa168a7cd27b1fc6920f5e1470c804f814d9cd6e62a0f70b"
 dependencies = [
  "env_logger 0.11.10",
  "log",
- "rand 0.10.0",
+ "rand 0.10.1",
 ]
 
 [[package]]
@@ -541,6 +570,12 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "r-efi"
+version = "5.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
+
 [[package]]
 name = "r-efi"
 version = "6.0.0"
@@ -549,42 +584,41 @@ checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
 
 [[package]]
 name = "rand"
-version = "0.8.5"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
+checksum = "44c5af06bb1b7d3216d91932aed5265164bf384dc89cd6ba05cf59a35f5f76ea"
 dependencies = [
- "libc",
  "rand_chacha",
- "rand_core 0.6.4",
+ "rand_core 0.9.5",
 ]
 
 [[package]]
 name = "rand"
-version = "0.10.0"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc266eb313df6c5c09c1c7b1fbe2510961e5bcd3add930c1e31f7ed9da0feff8"
+checksum = "d2e8e8bcc7961af1fdac401278c6a831614941f6164ee3bf4ce61b7edb162207"
 dependencies = [
  "getrandom 0.4.2",
  "rand_core 0.10.0",
 ]
 
 [[package]]
 name = "rand_chacha"
-version = "0.3.1"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+checksum = "d3022b5f1df60f26e1ffddd6c66e8aa15de382ae63b3a0c1bfc0e4d3e3f325cb"
 dependencies = [
  "ppv-lite86",
- "rand_core 0.6.4",
+ "rand_core 0.9.5",
 ]
 
 [[package]]
 name = "rand_core"
-version = "0.6.4"
+version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+checksum = "76afc826de14238e6e8c374ddcc1fa19e374fd8dd986b0d2af0d02377261d83c"
 dependencies = [
- "getrandom 0.2.17",
+ "getrandom 0.3.4",
 ]
 
 [[package]]
@@ -648,6 +682,19 @@ version = "0.1.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b50b8869d9fc858ce7266cce0194bd74df58b9d0e3f6df3a9fc8eb470d95c09d"
 
+[[package]]
+name = "rustix"
+version = "1.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6fe4565b9518b83ef4f91bb47ce29620ca828bd32cb7e408f0062e9930ba190"
+dependencies = [
+ "bitflags",
+ "errno",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys",
+]
+
 [[package]]
 name = "ryu"
 version = "1.0.23"
@@ -787,11 +834,19 @@ dependencies = [
  "walkdir",
 ]
 
+[[package]]
+name = "stdarch-gen-common"
+version = "0.1.0"
+dependencies = [
+ "tempfile",
+]
+
 [[package]]
 name = "stdarch-gen-hexagon"
 version = "0.1.0"
 dependencies = [
  "regex",
+ "stdarch-gen-common",
 ]
 
 [[package]]
@@ -805,7 +860,7 @@ dependencies = [
 name = "stdarch-gen-loongarch"
 version = "0.1.0"
 dependencies = [
- "rand 0.8.5",
+ "rand 0.9.4",
 ]
 
 [[package]]
@@ -838,7 +893,7 @@ version = "0.0.0"
 dependencies = [
  "core_arch",
  "quickcheck",
- "rand 0.8.5",
+ "rand 0.9.4",
 ]
 
 [[package]]
@@ -864,6 +919,19 @@ version = "0.6.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "43d0e35dc7d73976a53c7e6d7d177ef804a0c0ee774ec77bcc520c2216fd7cbe"
 
+[[package]]
+name = "tempfile"
+version = "3.27.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32497e9a4c7b38532efcdebeef879707aa9f794296a4f0244f6f69e9bc8574bd"
+dependencies = [
+ "fastrand",
+ "getrandom 0.4.2",
+ "once_cell",
+ "rustix",
+ "windows-sys",
+]
+
 [[package]]
 name = "termcolor"
 version = "1.4.1"
@@ -921,12 +989,6 @@ dependencies = [
  "winapi-util",
 ]
 
-[[package]]
-name = "wasi"
-version = "0.11.1+wasi-snapshot-preview1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
-
 [[package]]
 name = "wasip2"
 version = "1.0.2+wasi-0.2.9"

library/stdarch/ci/intrinsic-test.sh

@@ -1,13 +1,19 @@
 #!/usr/bin/env sh
 
-set -ex
-
 if [ $# -lt 2 ]; then
-    >&2 echo "Usage: $0 <TARGET> <CC>"
+    >&2 echo "Usage: $0 <TARGET> <CC> <..args for \`cargo test\`..>"
     exit 1
 fi
 
-case ${2} in
+set -ex
+
+# Pop both arguments and leave "$@" as containing args to be forwarded to `cargo test`
+TARGET="$1"
+shift
+CC_KIND="$1"
+shift
+
+case ${CC_KIND} in
     clang)
         export CC="${CLANG_PATH}"
         CC_ARG_STYLE=clang
@@ -22,7 +28,7 @@ case ${2} in
         CC_ARG_STYLE=clang
         ;;
     *)
-        >&2 echo "Unknown compiler: ${2}"
+        >&2 echo "Unknown compiler: ${CC_KIND}"
         exit 1
         ;;
 esac
@@ -35,7 +41,7 @@ echo "PROFILE=${PROFILE}"
 
 INTRINSIC_TEST="--manifest-path=crates/intrinsic-test/Cargo.toml"
 
-case ${1} in
+case ${TARGET} in
     aarch64_be*)
         export CFLAGS="-I${AARCH64_BE_TOOLCHAIN}/aarch64_be-none-linux-gnu/libc/usr/include --sysroot={AARCH64_BE_TOOLCHAIN}/aarch64_be-none-linux-gnu/libc -Wno-nonportable-vector-initialization"
         ARCH=aarch64_be
@@ -60,24 +66,25 @@ case ${1} in
 
 esac
 
-case "${1}" in
+case "${TARGET}" in
     x86_64-unknown-linux-gnu*)
         env -u CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUNNER \
             cargo run "${INTRINSIC_TEST}" --release \
             --bin intrinsic-test -- intrinsics_data/x86-intel.xml \
             --skip "crates/intrinsic-test/missing_${ARCH}_common.txt" \
-            --skip "crates/intrinsic-test/missing_${ARCH}_${2}.txt" \
-            --target "${1}" \
+            --skip "crates/intrinsic-test/missing_${ARCH}_${CC_KIND}.txt" \
+            --target "${TARGET}" \
             --cc-arg-style "${CC_ARG_STYLE}"
         ;;
     *)
         cargo run "${INTRINSIC_TEST}" --release \
             --bin intrinsic-test -- intrinsics_data/arm_intrinsics.json \
             --skip "crates/intrinsic-test/missing_${ARCH}_common.txt" \
-            --skip "crates/intrinsic-test/missing_${ARCH}_${2}.txt" \
-            --target "${1}" \
+            --skip "crates/intrinsic-test/missing_${ARCH}_${CC_KIND}.txt" \
+            --target "${TARGET}" \
             --cc-arg-style "${CC_ARG_STYLE}"
         ;;
 esac
 
-cargo test --manifest-path=rust_programs/Cargo.toml --target "${1}" --profile "${PROFILE}" --tests
+cargo test --manifest-path=rust_programs/Cargo.toml --target "${TARGET}" --profile "${PROFILE}" \
+    --tests "$@"

library/stdarch/crates/core_arch/src/aarch64/neon/generated.rs

@@ -11903,7 +11903,7 @@ pub unsafe fn vluti4q_lane_s8<const LANE: i32>(a: int8x16_t, b: uint8x8_t) -> in
     unsafe extern "unadjusted" {
         #[cfg_attr(
             any(target_arch = "aarch64", target_arch = "arm64ec"),
-            link_name = "llvm.aarch64.neon.vluti4q.lane.v8i8"
+            link_name = "llvm.aarch64.neon.vluti4q.lane.v16i8"
         )]
         fn _vluti4q_lane_s8(a: int8x16_t, b: uint8x8_t, n: i32) -> int8x16_t;
     }

library/stdarch/crates/core_arch/src/aarch64/prefetch.rs

@@ -2,7 +2,7 @@
 use stdarch_test::assert_instr;
 
 unsafe extern "unadjusted" {
-    #[link_name = "llvm.prefetch"]
+    #[link_name = "llvm.prefetch.p0"]
     fn prefetch(p: *const i8, rw: i32, loc: i32, ty: i32);
 }