| Age | Commit message (Collapse) | Author | Lines |
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Instead of
```
LL | fn oom(
| __^
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LL | || ) {
| ||_-
LL | | }
| |__^
```
emit
```
LL | // fn oom(
LL | || ) {
| ||_-
LL | | }
| |__^
```
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Upstream issue: https://github.com/llvm/llvm-project/issues/58384
LLVM gets confused if we assign a 32-bit value to a 64-bit register, so
pass the 32-bit register name to LLVM in that case.
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modified: compiler/rustc_typeck/src/check/intrinsicck.rs
modified: src/test/ui/asm/bad-template.aarch64_mirunsafeck.stderr
modified: src/test/ui/asm/bad-template.aarch64_thirunsafeck.stderr
modified: src/test/ui/asm/bad-template.x86_64_mirunsafeck.stderr
modified: src/test/ui/asm/bad-template.x86_64_thirunsafeck.stderr
modified: src/test/ui/asm/type-check-1.rs
modified: src/test/ui/asm/type-check-1.stderr
modified: src/test/ui/asm/x86_64/type-check-3.stderr
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This was accidentally accepted even though it had no effect in
`global_asm!`. The option only makes sense for `asm!` which runs within
a function.
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Fix spans for asm diagnostics
Line spans were incorrect if the first line of an asm statement was an
empty string.
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Line spans were incorrect if the first line of an asm statement was an
empty string.
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Shorten def_span of closures to just their header
Continuation of https://github.com/rust-lang/rust/pull/93967.
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Fold aarch64 feature +fp into +neon
Arm's FEAT_FP and Feat_AdvSIMD describe the same thing on AArch64:
The Neon unit, which handles both floating point and SIMD instructions.
Moreover, a configuration for AArch64 must include both or neither.
Arm says "entirely proprietary" toolchains may omit floating point:
https://developer.arm.com/documentation/102374/0101/Data-processing---floating-point
In the Programmer's Guide for Armv8-A, Arm says AArch64 can have
both FP and Neon or neither in custom implementations:
https://developer.arm.com/documentation/den0024/a/AArch64-Floating-point-and-NEON
In "Bare metal boot code for Armv8-A", enabling Neon and FP
is just disabling the same trap flag:
https://developer.arm.com/documentation/dai0527/a
In an unlikely future where "Neon and FP" become unrelated,
we can add "[+-]fp" as its own feature flag.
Until then, we can simplify programming with Rust on AArch64 by
folding both into "[+-]neon", which is valid as it supersets both.
"[+-]neon" is retained for niche uses such as firmware, kernels,
"I just hate floats", and so on.
I am... pretty sure no one is relying on this.
An argument could be made that, as we are not an "entirely proprietary" toolchain, we should not support AArch64 without floats at all. I think that's a bit excessive. However, I want to recognize the intent: programming for AArch64 should be simplified where possible. For x86-64, programmers regularly set up illegal feature configurations because it's hard to understand them, see https://github.com/rust-lang/rust/issues/89586. And per the above notes, plus the discussion in https://github.com/rust-lang/rust/issues/86941, there should be no real use cases for leaving these features split: the two should in fact always go together.
- Fixes rust-lang/rust#95002.
- Fixes rust-lang/rust#95064.
- Fixes rust-lang/rust#95122.
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Arm's FEAT_FP and Feat_AdvSIMD describe the same thing on AArch64:
The Neon unit, which handles both floating point and SIMD instructions.
Moreover, a configuration for AArch64 must include both or neither.
Arm says "entirely proprietary" toolchains may omit floating point:
https://developer.arm.com/documentation/102374/0101/Data-processing---floating-point
In the Programmer's Guide for Armv8-A, Arm says AArch64 can have
both FP and Neon or neither in custom implementations:
https://developer.arm.com/documentation/den0024/a/AArch64-Floating-point-and-NEON
In "Bare metal boot code for Armv8-A", enabling Neon and FP
is just disabling the same trap flag:
https://developer.arm.com/documentation/dai0527/a
In an unlikely future where "Neon and FP" become unrelated,
we can add "[+-]fp" as its own feature flag.
Until then, we can simplify programming with Rust on AArch64 by
folding both into "[+-]neon", which is valid as it supersets both.
"[+-]neon" is retained for niche uses such as firmware, kernels,
"I just hate floats", and so on.
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They are also removed from the prelude as per the decision in
https://github.com/rust-lang/rust/issues/87228.
stdarch and compiler-builtins are updated to work with the new, stable
asm! and global_asm! macros.
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Allow multiple clobber_abi in asm
Update docs
Fix aarch64 test
Combine abis
Emit duplicate ABI error, empty ABI list error
multiple clobber_abi
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Remove trailing semicolon from macro call span
Macro call site spans are now less surprising/more consistent since they no longer contain a semicolon after the macro call.
The downside is that we need to do a little guesswork to get the semicolon in diagnostics. But this should not be noticeable since it is rare for the semicolon to not immediately follow the macro call.
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The checking variant ensures that the offset required is not larger than
12 bits - hence we wouldn't ever need the upper 12 bits.
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Update new tests to run on aarch64 platforms.
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Enable tests which are largely architecture-independent on all supported
platforms
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