add spirv64-intel-unknown target triple #151549

karolzwolak · 2026-01-23T17:54:46Z

The target name is a bit weird but it will allow offloading rust code on intel GPUs.
Tracking issue #131513
Builds upon #150851 (commits from that are included here for now), needs this merged upstream llvm/llvm-project#174675 to be actually usable.
This is work in progress, but any feedback is appreciated.
The modified tests pass on my setup but I haven't been able to run any code on the GPU yet.

karolzwolak · 2026-01-23T18:13:37Z

compiler/rustc_target/src/spec/targets/spirv64_intel_unknown.rs

Will have to verify stuff in here, for now I just copied from the vulkan triple and changed the data layout.

ZuseZ4 · 2026-01-23T19:43:48Z

Great. For the runtime failure, I think I know a fix. Other than that, can you please update the rustc-dev-guide (you can do that in this PR) and add a spirv section under the offload chapter? #149202 has an exmample. It seems like for now users will have to call out to some extra binaries to process the artifacts, until LLVM get's to integrate them properly. See e.g https://github.com/llvm/llvm-project/pull/174675/changes#r2713489339, so it would be good to document the spirv pipeline.

compiler/rustc_target/src/spec/targets/spirv64_intel_unknown.rs

workingjubilee · 2026-01-23T21:21:29Z

compiler/rustc_target/src/spec/abi_map.rs

            Arch::Msp430 => ArchKind::Msp430,
            Arch::Nvptx64 => ArchKind::Nvptx,
            Arch::RiscV32 | Arch::RiscV64 => ArchKind::Riscv,
+            Arch::SpirV => ArchKind::Spirv,


I'm not entirely sure I agree with SPIRV being SpirV in the Arch but let's be consistent here. The ArchKind::Riscv deviation was not an intentional choice, if memory serves.

Suggested change

Arch::SpirV => ArchKind::Spirv,

Arch::SpirV => ArchKind::SpirV,

I'd go with Spirv everywhere then. But that'd have to be fixed in the "upstream" PR as well.

compiler/rustc_target/src/spec/mod.rs

workingjubilee · 2026-01-23T21:31:17Z

library/core/src/ffi/va_list.rs


 // Checks (via an assert in `compiler/rustc_ty_utils/src/abi.rs`) that the C ABI for the current
 // target correctly implements `rustc_pass_indirectly_in_non_rustic_abis`.
+#[cfg(not(target_arch = "spirv"))]


I should comment on the "upstream" PR because this is present from there.

btw support for variadics in spirv functions landed recently llvm/llvm-project#175076

karolzwolak · 2026-01-24T18:49:13Z

It seems like for now users will have to call out to some extra binaries to process the artifacts, until LLVM get's to integrate them properly. See e.g https://github.com/llvm/llvm-project/pull/174675/changes#r2713489339, so it would be good to document the spirv pipeline.

Good catch, that's where I was stuck. But that's only a problem when we're using lto I think. Why does offloading require fat lto?

Should be fixed in the "upstream" PR

ZuseZ4 · 2026-01-24T19:54:32Z

Mostly what Johannes said in the LLVM PR, we rely on LTO for performance, although it also simplifies the implementation a bit, since we only have one llvm-ir module, so we don't have to search for functions across multiple modules. There were two groups working on getting thin-lto performance competitive, I can ask around how that's going. In the future we could look into supporting other things than fat-lto, but so far I just didn't want to spend time on features that reduce runtime perf, if we don't even have everything needed yet to write performant kernels.

rust-log-analyzer · 2026-01-24T20:36:05Z

The job aarch64-gnu-llvm-20-1 failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

test [ui] tests/ui/extern/issue-64655-extern-rust-must-allow-unwind.rs#fat2 ... ok
test [ui] tests/ui/extern/issue-64655-extern-rust-must-allow-unwind.rs#fat3 ... ok
test [ui] tests/ui/extern/issue-80074.rs ... ok
test [ui] tests/ui/extern/issue-95829.rs ... ok
test [ui] tests/ui/extern/lgamma-linkage.rs ... ok
test [ui] tests/ui/extern/no-mangle-associated-fn.rs ... ok
test [ui] tests/ui/extern/issue-64655-extern-rust-must-allow-unwind.rs#thin1 ... ok
test [ui] tests/ui/extern/not-in-block.rs ... ok
test [ui] tests/ui/extern/unsized-extern-derefmove.rs ... ok
test [ui] tests/ui/feature-gates/allow-features-empty.rs ... ok
---
test [ui] tests/ui/imports/ambiguous-6.rs ... ok
test [ui] tests/ui/imports/ambiguous-4.rs ... ok
test [ui] tests/ui/imports/ambiguous-7.rs ... ok
test [ui] tests/ui/imports/ambiguous-9.rs ... ok
test [ui] tests/ui/imports/ambiguous-panic-glob-vs-multiouter.rs ... ok
test [ui] tests/ui/imports/ambiguous-panic-globvsglob.rs ... ok
test [ui] tests/ui/imports/ambiguous-panic-no-implicit-prelude.rs ... ok
test [ui] tests/ui/imports/ambiguous-8.rs ... ok
test [ui] tests/ui/imports/ambiguous-glob-vs-expanded-extern.rs ... ok
test [ui] tests/ui/imports/ambiguous-panic-non-prelude-core-glob.rs ... ok
test [ui] tests/ui/imports/ambiguous-panic-non-prelude-std-glob.rs ... ok
---
test [ui] tests/ui/zero-sized/zero-sized-btreemap-insert.rs ... ok

failures:

---- [ui] tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs#AMDGPU stdout ----
Saved the actual stderr to `/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui/feature-gates/feature-gate-abi_gpu_kernel.AMDGPU/feature-gate-abi_gpu_kernel.AMDGPU.stderr`
diff of stderr:

1 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:17:8
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:19:8
3    |
4 LL | extern "gpu-kernel" fn f1(_: ()) {}
5    |        ^^^^^^^^^^^^

9    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
10 
11 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:22:12
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:24:12
13    |
14 LL |     extern "gpu-kernel" fn m1(_: ());
15    |            ^^^^^^^^^^^^

19    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
20 
21 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:25:12
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:27:12
23    |
24 LL |     extern "gpu-kernel" fn dm1(_: ()) {}
25    |            ^^^^^^^^^^^^

29    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
30 
31 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:33:12
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:35:12
33    |
34 LL |     extern "gpu-kernel" fn m1(_: ()) {}
35    |            ^^^^^^^^^^^^

39    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
40 
41 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:39:12
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:41:12
43    |
44 LL |     extern "gpu-kernel" fn im1(_: ()) {}
45    |            ^^^^^^^^^^^^

49    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
50 
51 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:44:18
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:46:18
53    |
54 LL | type A1 = extern "gpu-kernel" fn(_: ());
55    |                  ^^^^^^^^^^^^

59    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
60 
61 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:48:8
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:50:8
63    |
64 LL | extern "gpu-kernel" {}
65    |        ^^^^^^^^^^^^

Note: some mismatched output was normalized before being compared
-   --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:19:8
-   --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:24:12
---
The actual stderr differed from the expected stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args feature-gates/feature-gate-abi_gpu_kernel.rs`

error in revision `AMDGPU`: 1 errors occurred comparing output.
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2" "--cfg" "amdgpu" "--check-cfg" "cfg(test,FALSE,host,amdgpu,nvptx,spirv)" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui/feature-gates/feature-gate-abi_gpu_kernel.AMDGPU" "-A" "unused" "-W" "unused_attributes" "-A" "internal_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/aarch64-unknown-linux-gnu/native/rust-test-helpers" "-Cpanic=abort" "-Cforce-unwind-tables=yes" "--crate-type=rlib" "--target" "amdgcn-amd-amdhsa" "-Ctarget-cpu=gfx1100" "--extern" "minicore=/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui/feature-gates/feature-gate-abi_gpu_kernel.AMDGPU/libminicore.rlib"
stdout: none
--- stderr -------------------------------
error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:19:8
   |
LL | extern "gpu-kernel" fn f1(_: ()) {} //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |        ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:24:12
   |
LL |     extern "gpu-kernel" fn m1(_: ()); //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |            ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:27:12
   |
LL |     extern "gpu-kernel" fn dm1(_: ()) {} //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |            ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:35:12
   |
LL |     extern "gpu-kernel" fn m1(_: ()) {} //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |            ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:41:12
   |
LL |     extern "gpu-kernel" fn im1(_: ()) {} //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |            ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:46:18
   |
LL | type A1 = extern "gpu-kernel" fn(_: ()); //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |                  ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:50:8
   |
LL | extern "gpu-kernel" {} //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |        ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error: aborting due to 7 previous errors

For more information about this error, try `rustc --explain E0658`.
------------------------------------------

---- [ui] tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs#AMDGPU stdout end ----
---- [ui] tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs#SPIRV stdout ----

error in revision `SPIRV`: auxiliary build of /checkout/tests/auxiliary/minicore.rs failed to compile: 
status: exit status: 1
command: "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/auxiliary/minicore.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2" "--cfg" "spirv" "--check-cfg" "cfg(test,FALSE,host,amdgpu,nvptx,spirv)" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui/feature-gates/feature-gate-abi_gpu_kernel.SPIRV/libminicore.rlib" "-A" "unused" "-W" "unused_attributes" "-A" "internal_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/aarch64-unknown-linux-gnu/native/rust-test-helpers" "-Cpanic=abort" "-Cforce-unwind-tables=yes" "--crate-type=rlib" "--target" "spirv64-intel-unknown" "--crate-type" "rlib" "-Cpanic=abort"
stdout: none
--- stderr -------------------------------
warning: type `c_void` should have an upper camel case name
##[warning]  --> /checkout/tests/auxiliary/minicore.rs:286:10
   |
LL | pub enum c_void {
   |          ^^^^^^ help: convert the identifier to upper camel case: `CVoid`
   |
   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default

warning: variant `__variant1` should have an upper camel case name
##[warning]  --> /checkout/tests/auxiliary/minicore.rs:287:5
   |
LL |     __variant1,
   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `Variant1`

warning: variant `__variant2` should have an upper camel case name
##[warning]  --> /checkout/tests/auxiliary/minicore.rs:288:5
   |
LL |     __variant2,
   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `Variant2`

error: data-layout for target `spirv64-intel-unknown`, `e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-n8:16:32:64-G1-P9-A0`, differs from LLVM target's `spirv64-intel-unknown` default layout, `e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-n8:16:32:64-G1`

error: aborting due to 1 previous error; 3 warnings emitted
------------------------------------------

---- [ui] tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs#SPIRV stdout end ----
---- [ui] tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs#NVPTX stdout ----
Saved the actual stderr to `/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui/feature-gates/feature-gate-abi_gpu_kernel.NVPTX/feature-gate-abi_gpu_kernel.NVPTX.stderr`
diff of stderr:

1 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:17:8
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:19:8
3    |
4 LL | extern "gpu-kernel" fn f1(_: ()) {}
5    |        ^^^^^^^^^^^^

9    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
10 
11 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:22:12
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:24:12
13    |
14 LL |     extern "gpu-kernel" fn m1(_: ());
15    |            ^^^^^^^^^^^^

19    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
20 
21 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:25:12
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:27:12
23    |
24 LL |     extern "gpu-kernel" fn dm1(_: ()) {}
25    |            ^^^^^^^^^^^^

29    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
30 
31 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:33:12
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:35:12
33    |
34 LL |     extern "gpu-kernel" fn m1(_: ()) {}
35    |            ^^^^^^^^^^^^

39    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
40 
41 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:39:12
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:41:12
43    |
44 LL |     extern "gpu-kernel" fn im1(_: ()) {}
45    |            ^^^^^^^^^^^^

49    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
50 
51 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:44:18
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:46:18
53    |
54 LL | type A1 = extern "gpu-kernel" fn(_: ());
55    |                  ^^^^^^^^^^^^

59    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
60 
61 error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
-   --> $DIR/feature-gate-abi_gpu_kernel.rs:48:8
+   --> $DIR/feature-gate-abi_gpu_kernel.rs:50:8
63    |
64 LL | extern "gpu-kernel" {}
65    |        ^^^^^^^^^^^^

Note: some mismatched output was normalized before being compared
-   --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:19:8
-   --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:24:12
---
The actual stderr differed from the expected stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args feature-gates/feature-gate-abi_gpu_kernel.rs`

error in revision `NVPTX`: 1 errors occurred comparing output.
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2" "--cfg" "nvptx" "--check-cfg" "cfg(test,FALSE,host,amdgpu,nvptx,spirv)" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui/feature-gates/feature-gate-abi_gpu_kernel.NVPTX" "-A" "unused" "-W" "unused_attributes" "-A" "internal_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/aarch64-unknown-linux-gnu/native/rust-test-helpers" "-Cpanic=abort" "-Cforce-unwind-tables=yes" "--crate-type=rlib" "--target" "nvptx64-nvidia-cuda" "--extern" "minicore=/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui/feature-gates/feature-gate-abi_gpu_kernel.NVPTX/libminicore.rlib"
stdout: none
--- stderr -------------------------------
error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:19:8
   |
LL | extern "gpu-kernel" fn f1(_: ()) {} //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |        ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:24:12
   |
LL |     extern "gpu-kernel" fn m1(_: ()); //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |            ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:27:12
   |
LL |     extern "gpu-kernel" fn dm1(_: ()) {} //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |            ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:35:12
   |
LL |     extern "gpu-kernel" fn m1(_: ()) {} //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |            ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:41:12
   |
LL |     extern "gpu-kernel" fn im1(_: ()) {} //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |            ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:46:18
   |
LL | type A1 = extern "gpu-kernel" fn(_: ()); //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |                  ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: the extern "gpu-kernel" ABI is experimental and subject to change
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-abi_gpu_kernel.rs:50:8
   |
LL | extern "gpu-kernel" {} //~ ERROR "gpu-kernel" ABI is experimental and subject to change
   |        ^^^^^^^^^^^^
   |
   = note: see issue #135467 <https://github.com/rust-lang/rust/issues/135467> for more information
   = help: add `#![feature(abi_gpu_kernel)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error: aborting due to 7 previous errors

For more information about this error, try `rustc --explain E0658`.
------------------------------------------

rust-bors · 2026-01-25T01:54:37Z

☔ The latest upstream changes (presumably #151615) made this pull request unmergeable. Please resolve the merge conflicts.

ZuseZ4 mentioned this pull request Jan 23, 2026

Tracking Issue for GPU-offload #131513

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karolzwolak commented Jan 23, 2026

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workingjubilee reviewed Jan 23, 2026

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Update to LLVM 22

5a3184e

nikic and others added 12 commits January 24, 2026 19:04

Update host toolchain

0b00be2

Add patches

2a85226

add spirv target

fdcc73e

wip

1165a46

format

0d673e5

spirv64-intel-unknown triple

376ba00

test

9e1fff8

gpu-kernel abi for spirv target

13a732e

llvm revision with device rtl

c8b9f1c

update offload tests

66dc7f6

manually set cmake defines for offload

bd29d0a

add spirv to tidy arch_to_llvm_component mapping

db5c105

karolzwolak added 4 commits January 24, 2026 20:00

fix unit test for is_like_gpu

cdab1e7

more accurate target description

3cb0b65

update llvm src

e885a29

bless ui/check-cfg tests with the new arch

6e7fb35

karolzwolak force-pushed the spirv64-intel-unknown-target branch from fb06f5e to 6e7fb35 Compare January 24, 2026 19:00

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karolzwolak added 4 commits January 24, 2026 20:48

minor fixes & allow lints in offload example src

bceda28

target agnostic instructions in rustc-dev-guide/offload/usage.md

0cfbee6

permit the target to have unknown os

7c0207f

set is_like_gpu = true for spirv-unknown-vulkan1.3 target

660a91a

Should be fixed in the "upstream" PR

rustbot added the A-rustc-dev-guide Area: rustc-dev-guide label Jan 24, 2026

	Arch::SpirV => ArchKind::Spirv,
	Arch::SpirV => ArchKind::SpirV,

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add spirv64-intel-unknown target triple #151549

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add spirv64-intel-unknown target triple #151549

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