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Make ArgAbi::make_indirect_force more specific

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This commit is contained in:
beetrees 2024-08-21 02:43:12 +01:00
parent 5aea14073e
commit 0f5c6eaccc
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GPG Key ID: 8791BD754191EBD6
5 changed files with 18 additions and 8 deletions
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18
compiler/rustc_target/src/abi/call/mod.rs
View File

@ -642,7 +642,7 @@ impl<'a, Ty> ArgAbi<'a, Ty> {
pub fn make_indirect(&mut self) {
match self.mode {
PassMode::Direct(_) | PassMode::Pair(_, _) => {
self.make_indirect_force();
self.mode = Self::indirect_pass_mode(&self.layout);
}
PassMode::Indirect { attrs: _, meta_attrs: _, on_stack: false } => {
// already indirect
@ -652,9 +652,19 @@ impl<'a, Ty> ArgAbi<'a, Ty> {
}
}
/// Same as make_indirect, but doesn't check the current `PassMode`.
pub fn make_indirect_force(&mut self) {
self.mode = Self::indirect_pass_mode(&self.layout);
/// Same as `make_indirect`, but for arguments that are ignored. Only needed for ABIs that pass
/// ZSTs indirectly.
pub fn make_indirect_from_ignore(&mut self) {
match self.mode {
PassMode::Ignore => {
self.mode = Self::indirect_pass_mode(&self.layout);
}
PassMode::Indirect { attrs: _, meta_attrs: _, on_stack: false } => {
// already indirect
return;
}
_ => panic!("Tried to make {:?} indirect (expected `PassMode::Ignore`)", self.mode),
}
}
/// Pass this argument indirectly, by placing it at a fixed stack offset.

2
compiler/rustc_target/src/abi/call/powerpc.rs
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@ -16,7 +16,7 @@ fn classify_arg<Ty>(cx: &impl HasTargetSpec, arg: &mut ArgAbi<'_, Ty>) {
&& matches!(&*cx.target_spec().env, "gnu" | "musl" | "uclibc")
&& arg.layout.is_zst()
{
arg.make_indirect_force();
arg.make_indirect_from_ignore();
}
return;
}

2
compiler/rustc_target/src/abi/call/s390x.rs
View File

@ -28,7 +28,7 @@ where
&& matches!(&*cx.target_spec().env, "gnu" | "musl" | "uclibc")
&& arg.layout.is_zst()
{
arg.make_indirect_force();
arg.make_indirect_from_ignore();
}
return;
}

2
compiler/rustc_target/src/abi/call/sparc64.rs
View File

@ -225,7 +225,7 @@ where
&& matches!(&*cx.target_spec().env, "gnu" | "musl" | "uclibc")
&& arg.layout.is_zst()
{
arg.make_indirect_force();
arg.make_indirect_from_ignore();
}
return;
}

2
compiler/rustc_target/src/abi/call/x86_win64.rs
View File

@ -43,7 +43,7 @@ pub fn compute_abi_info<Ty>(cx: &impl HasTargetSpec, fn_abi: &mut FnAbi<'_, Ty>)
&& cx.target_spec().env == "gnu"
&& arg.layout.is_zst()
{
arg.make_indirect_force();
arg.make_indirect_from_ignore();
}
continue;
}