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simd_splat: custom error in gcc backend for invalid element type

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Folkert de Vries 2026-01-19 15:44:11 +01:00
parent 80c0b99de0
commit 120388c063
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1 changed files with 13 additions and 6 deletions
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19
compiler/rustc_codegen_gcc/src/intrinsic/simd.rs
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@ -121,9 +121,9 @@ pub fn generic_simd_intrinsic<'a, 'gcc, 'tcx>(
return Ok(bx.vector_select(vector_mask, arg1, args[2].immediate()));
}
#[cfg(feature = "master")]
if name == sym::simd_splat {
require_simd!(ret_ty, InvalidMonomorphization::SimdReturn { span, name, ty: ret_ty });
let (out_len, out_ty) = ret_ty.simd_size_and_type(bx.tcx());
let (out_len, out_ty) = require_simd2!(ret_ty, SimdReturn);
require!(
args[0].layout.ty == out_ty,
@ -139,11 +139,18 @@ pub fn generic_simd_intrinsic<'a, 'gcc, 'tcx>(
let elem_ty = vec_ty.get_element_type();
// Cast pointer type to usize (GCC does not support pointer SIMD vectors).
let scalar = args[0].immediate();
let scalar = if scalar.get_type().unqualified() != elem_ty.unqualified() {
bx.ptrtoint(scalar, elem_ty)
let value = args[0];
let scalar = if value.layout.ty.is_numeric() {
value.immediate()
} else if value.layout.ty.is_raw_ptr() {
bx.ptrtoint(value.immediate(), elem_ty)
} else {
scalar
return_error!(InvalidMonomorphization::UnsupportedOperation {
span,
name,
in_ty: ret_ty,
in_elem: value.layout.ty
});
};
let elements = vec![scalar; out_len as usize];