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Enable f16 for MIPS #762

Merged
merged 1 commit into from
Feb 24, 2025
Merged

Enable f16 for MIPS #762

merged 1 commit into from
Feb 24, 2025

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martn3
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@martn3 martn3 commented Feb 20, 2025

It seems as if f16 works on MIPS now according to my testing on Rust master with LLVM 20, and I was asked here to create PRs with my changes.

I only tested on the flavour of mipsel-unknown-linux-gnu hardware that happens to be available to me, so I can't say anything about other MIPS hardware, but from a casual skimming of the LLVM code (1, 2) it seems like f16 should work on all MIPS hardware. So enable it for all MIPS hardware.

r? @tgross35

Tracking issue for f16: rust-lang/rust#116909

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LGTM, I'll merge after the current rust-lang/rust builtins update goes through (which is stuck waiting on bootstrap)

@tgross35 tgross35 enabled auto-merge (rebase) February 24, 2025 03:34
It seems as if `f16` works on MIPS now according to my
testing on Rust master with LLVM 20, and I was asked to
create PRs with my changes.

I only tested on the flavour of `mipsel-unknown-linux-gnu`
hardware that happens to be available to me, so I can't say
anything about other MIPS hardware, but from a casual
skimming of the LLVM code ([1], [2]) it seems like `f16`
should work on all MIPS hardware. So enable it for all MIPS
hardware.

[1]: https://github.com/rust-lang/llvm-project/blob/rustc/20.1-2025-02-13/llvm/lib/Target/Mips/MipsISelLowering.h#L370
[2]: https://github.com/rust-lang/llvm-project/blob/rustc/20.1-2025-02-13/llvm/lib/CodeGen/TargetLoweringBase.cpp#L1367-L1388
@tgross35 tgross35 merged commit 238b055 into rust-lang:master Feb 24, 2025
26 checks passed
tgross35 added a commit to tgross35/rust that referenced this pull request Feb 24, 2025
Includes `f16` symbols on MIPS [1], updates for `libm` [2], and
reapplies the patch that drops the `public_test_deps!` macro [3].

[1]: rust-lang/compiler-builtins#762
[2]: rust-lang/compiler-builtins#765
[3]: rust-lang/compiler-builtins#766
bors added a commit to rust-lang-ci/rust that referenced this pull request Feb 24, 2025
Update `compiler-builtins` to 0.1.148

Includes `f16` symbols on MIPS [1], updates for `libm` [2], and reapplies the patch that drops the `public_test_deps!` macro [3].

[1]: rust-lang/compiler-builtins#762
[2]: rust-lang/compiler-builtins#765
[3]: rust-lang/compiler-builtins#766

try-job: aarch64-gnu
try-job: i686-mingw-1
try-job: i686-mingw-2
try-job: test-various
try-job: x86_64-msvc-1
try-job: x86_64-msvc-2
try-job: x86_64-rust-for-linux
fmease added a commit to fmease/rust that referenced this pull request Feb 25, 2025
Update `compiler-builtins` to 0.1.148

Includes `f16` symbols on MIPS [1], updates for `libm` [2], and reapplies the patch that drops the `public_test_deps!` macro [3].

[1]: rust-lang/compiler-builtins#762
[2]: rust-lang/compiler-builtins#765
[3]: rust-lang/compiler-builtins#766

try-job: aarch64-gnu
try-job: i686-mingw-1
try-job: i686-mingw-2
try-job: test-various
try-job: x86_64-msvc-1
try-job: x86_64-msvc-2
try-job: x86_64-rust-for-linux
fmease added a commit to fmease/rust that referenced this pull request Feb 25, 2025
Update `compiler-builtins` to 0.1.148

Includes `f16` symbols on MIPS [1], updates for `libm` [2], and reapplies the patch that drops the `public_test_deps!` macro [3].

[1]: rust-lang/compiler-builtins#762
[2]: rust-lang/compiler-builtins#765
[3]: rust-lang/compiler-builtins#766

try-job: aarch64-gnu
try-job: i686-mingw-1
try-job: i686-mingw-2
try-job: test-various
try-job: x86_64-msvc-1
try-job: x86_64-msvc-2
try-job: x86_64-rust-for-linux
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Feb 25, 2025
Rollup merge of rust-lang#137515 - tgross35:update-builtins, r=tgross35

Update `compiler-builtins` to 0.1.148

Includes `f16` symbols on MIPS [1], updates for `libm` [2], and reapplies the patch that drops the `public_test_deps!` macro [3].

[1]: rust-lang/compiler-builtins#762
[2]: rust-lang/compiler-builtins#765
[3]: rust-lang/compiler-builtins#766

try-job: aarch64-gnu
try-job: i686-mingw-1
try-job: i686-mingw-2
try-job: test-various
try-job: x86_64-msvc-1
try-job: x86_64-msvc-2
try-job: x86_64-rust-for-linux
fmease added a commit to fmease/rust that referenced this pull request Feb 26, 2025
Enable `f16` for MIPS

Blocked on rust-lang/compiler-builtins#762

It seems as if `f16` works on MIPS now according to my testing on Rust master with LLVM 20, and I was asked [here](rust-lang#137167 (comment)) to create PRs with my changes.

I only tested on the flavour of `mipsel-unknown-linux-gnu` hardware that happens to be available to me, so I can't say anything about other MIPS hardware, but from a casual skimming of the LLVM code ([1], [2]) it seems like `f16` should work on all MIPS hardware. So enable it for all MIPS hardware.

[1]: https://github.com/rust-lang/llvm-project/blob/rustc/20.1-2025-02-13/llvm/lib/Target/Mips/MipsISelLowering.h#L370
[2]: https://github.com/rust-lang/llvm-project/blob/rustc/20.1-2025-02-13/llvm/lib/CodeGen/TargetLoweringBase.cpp#L1367-L1388

`@rustbot` label +O-MIPS +F-f16_and_f128 +S-blocked

Tracking issue for f16: rust-lang#116909

r? `@tgross35`
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Feb 26, 2025
Rollup merge of rust-lang#137311 - martn3:enable-f16-mips, r=tgross35

Enable `f16` for MIPS

Blocked on rust-lang/compiler-builtins#762

It seems as if `f16` works on MIPS now according to my testing on Rust master with LLVM 20, and I was asked [here](rust-lang#137167 (comment)) to create PRs with my changes.

I only tested on the flavour of `mipsel-unknown-linux-gnu` hardware that happens to be available to me, so I can't say anything about other MIPS hardware, but from a casual skimming of the LLVM code ([1], [2]) it seems like `f16` should work on all MIPS hardware. So enable it for all MIPS hardware.

[1]: https://github.com/rust-lang/llvm-project/blob/rustc/20.1-2025-02-13/llvm/lib/Target/Mips/MipsISelLowering.h#L370
[2]: https://github.com/rust-lang/llvm-project/blob/rustc/20.1-2025-02-13/llvm/lib/CodeGen/TargetLoweringBase.cpp#L1367-L1388

`@rustbot` label +O-MIPS +F-f16_and_f128 +S-blocked

Tracking issue for f16: rust-lang#116909

r? `@tgross35`
bjorn3 pushed a commit to rust-lang/rustc_codegen_cranelift that referenced this pull request Feb 26, 2025
Includes `f16` symbols on MIPS [1], updates for `libm` [2], and
reapplies the patch that drops the `public_test_deps!` macro [3].

[1]: rust-lang/compiler-builtins#762
[2]: rust-lang/compiler-builtins#765
[3]: rust-lang/compiler-builtins#766
bjorn3 pushed a commit to rust-lang/rustc_codegen_cranelift that referenced this pull request Feb 26, 2025
Update `compiler-builtins` to 0.1.148

Includes `f16` symbols on MIPS [1], updates for `libm` [2], and reapplies the patch that drops the `public_test_deps!` macro [3].

[1]: rust-lang/compiler-builtins#762
[2]: rust-lang/compiler-builtins#765
[3]: rust-lang/compiler-builtins#766

try-job: aarch64-gnu
try-job: i686-mingw-1
try-job: i686-mingw-2
try-job: test-various
try-job: x86_64-msvc-1
try-job: x86_64-msvc-2
try-job: x86_64-rust-for-linux
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2 participants