Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Remove unnecessary int_type_width_signed function #134020

Merged
merged 1 commit into from
Dec 9, 2024
Merged

Remove unnecessary int_type_width_signed function #134020

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
44 changes: 14 additions & 30 deletions compiler/rustc_codegen_llvm/src/intrinsic.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -352,8 +352,17 @@ impl<'ll, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> {
| sym::saturating_add
| sym::saturating_sub => {
let ty = arg_tys[0];
match int_type_width_signed(ty, self) {
Some((width, signed)) => match name {
if !ty.is_integral() {
tcx.dcx().emit_err(InvalidMonomorphization::BasicIntegerType {
span,
name,
ty,
});
return Ok(());
}
let (size, signed) = ty.int_size_and_signed(self.tcx);
let width = size.bits();
match name {
sym::ctlz | sym::cttz => {
let y = self.const_bool(false);
let ret = self.call_intrinsic(&format!("llvm.{name}.i{width}"), &[
Expand All @@ -376,9 +385,9 @@ impl<'ll, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> {
self.intcast(ret, llret_ty, false)
}
sym::ctpop => {
let ret = self.call_intrinsic(&format!("llvm.ctpop.i{width}"), &[args
[0]
.immediate()]);
let ret = self.call_intrinsic(&format!("llvm.ctpop.i{width}"), &[
args[0].immediate()
]);
self.intcast(ret, llret_ty, false)
}
sym::bswap => {
Expand Down Expand Up @@ -421,15 +430,6 @@ impl<'ll, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> {
self.call_intrinsic(llvm_name, &[lhs, rhs])
}
_ => bug!(),
},
None => {
tcx.dcx().emit_err(InvalidMonomorphization::BasicIntegerType {
span,
name,
ty,
});
return Ok(());
}
}
}

Expand Down Expand Up @@ -2531,19 +2531,3 @@ fn generic_simd_intrinsic<'ll, 'tcx>(

span_bug!(span, "unknown SIMD intrinsic");
}

// Returns the width of an int Ty, and if it's signed or not
// Returns None if the type is not an integer
// FIXME: there’s multiple of this functions, investigate using some of the already existing
// stuffs.
fn int_type_width_signed(ty: Ty<'_>, cx: &CodegenCx<'_, '_>) -> Option<(u64, bool)> {
match ty.kind() {
ty::Int(t) => {
Some((t.bit_width().unwrap_or(u64::from(cx.tcx.sess.target.pointer_width)), true))
}
ty::Uint(t) => {
Some((t.bit_width().unwrap_or(u64::from(cx.tcx.sess.target.pointer_width)), false))
}
_ => None,
}
}
Loading