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rustc_target: RISC-V Zfinx is incompatible with {ILP32,LP64}[FD] ABIs #138872

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Merged
merged 1 commit into from
May 2, 2025
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rustc_target: RISC-V Zfinx is incompatible with {ILP32,LP64}[FD] ABIs #138872

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8 changes: 4 additions & 4 deletions compiler/rustc_target/src/target_features.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -963,12 +963,12 @@ impl Target {
// about what the intended ABI is.
match &*self.llvm_abiname {
"ilp32d" | "lp64d" => {
// Requires d (which implies f), incompatible with e.
FeatureConstraints { required: &["d"], incompatible: &["e"] }
// Requires d (which implies f), incompatible with e and zfinx.
FeatureConstraints { required: &["d"], incompatible: &["e", "zfinx"] }
}
"ilp32f" | "lp64f" => {
// Requires f, incompatible with e.
FeatureConstraints { required: &["f"], incompatible: &["e"] }
// Requires f, incompatible with e and zfinx.
FeatureConstraints { required: &["f"], incompatible: &["e", "zfinx"] }
}
"ilp32" | "lp64" => {
// Requires nothing, incompatible with e.
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0 ...den-hardfloat-target-feature-attribute.rs → ...hardfloat-target-feature-attribute-e-d.rs
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2 changes: 1 addition & 1 deletion ...hardfloat-target-feature-attribute.stderr → ...float-target-feature-attribute-e-d.stderr
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
error: target feature `d` cannot be enabled with `#[target_feature]`: this feature is incompatible with the target ABI
--> $DIR/forbidden-hardfloat-target-feature-attribute.rs:10:18
--> $DIR/forbidden-hardfloat-target-feature-attribute-e-d.rs:10:18
|
LL | #[target_feature(enable = "d")]
| ^^^^^^^^^^^^
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12 changes: 12 additions & 0 deletions tests/ui/target-feature/forbidden-hardfloat-target-feature-attribute-f-zfinx.rs
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@@ -0,0 +1,12 @@
//! Ensure ABI-incompatible features cannot be enabled via `#[target_feature]`.
//@ compile-flags: --target=riscv64gc-unknown-linux-gnu --crate-type=lib
//@ needs-llvm-components: riscv
#![feature(no_core, lang_items, riscv_target_feature)]
#![no_core]

#[lang = "sized"]
pub trait Sized {}

#[target_feature(enable = "zdinx")]
//~^ERROR: cannot be enabled with
pub unsafe fn my_fun() {}
8 changes: 8 additions & 0 deletions tests/ui/target-feature/forbidden-hardfloat-target-feature-attribute-f-zfinx.stderr
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@@ -0,0 +1,8 @@
error: target feature `zfinx` cannot be enabled with `#[target_feature]`: this feature is incompatible with the target ABI
--> $DIR/forbidden-hardfloat-target-feature-attribute-f-zfinx.rs:10:18
|
LL | #[target_feature(enable = "zdinx")]
| ^^^^^^^^^^^^^^^^

error: aborting due to 1 previous error

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