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Merge commit '6ba33f5e1189a5ae58fb96ce3546e76b13d090f5' into subtree-update_cg_gcc_2025-05-14

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Guillaume Gomez
2025-05-14 13:51:02 +02:00
parent 414482f6a0 6ba33f5e11
commit 1c4ab86955
29 changed files with 909 additions and 247 deletions
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65
compiler/rustc_codegen_gcc/src/abi.rs
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@@ -9,9 +9,9 @@ use rustc_middle::ty::Ty;
use rustc_middle::ty::layout::LayoutOf;
#[cfg(feature = "master")]
use rustc_session::config;
#[cfg(feature = "master")]
use rustc_target::callconv::Conv;
use rustc_target::callconv::{ArgAttributes, CastTarget, FnAbi, PassMode};
#[cfg(feature = "master")]
use rustc_target::callconv::{Conv, RiscvInterruptKind};
use crate::builder::Builder;
use crate::context::CodegenCx;
@@ -240,38 +240,57 @@ impl<'gcc, 'tcx> FnAbiGccExt<'gcc, 'tcx> for FnAbi<'tcx, Ty<'tcx>> {
#[cfg(feature = "master")]
pub fn conv_to_fn_attribute<'gcc>(conv: Conv, arch: &str) -> Option<FnAttribute<'gcc>> {
// TODO: handle the calling conventions returning None.
let attribute = match conv {
Conv::C
| Conv::Rust
| Conv::CCmseNonSecureCall
| Conv::CCmseNonSecureEntry
| Conv::RiscvInterrupt { .. } => return None,
Conv::Cold => return None,
Conv::C | Conv::Rust => return None,
Conv::CCmseNonSecureCall => {
if arch == "arm" {
FnAttribute::ArmCmseNonsecureCall
} else {
return None;
}
}
Conv::CCmseNonSecureEntry => {
if arch == "arm" {
FnAttribute::ArmCmseNonsecureEntry
} else {
return None;
}
}
Conv::Cold => FnAttribute::Cold,
// NOTE: the preserve attributes are not yet implemented in GCC:
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110899
Conv::PreserveMost => return None,
Conv::PreserveAll => return None,
Conv::GpuKernel => {
// TODO(antoyo): remove clippy allow attribute when this is implemented.
#[allow(clippy::if_same_then_else)]
if arch == "amdgpu" {
return None;
FnAttribute::GcnAmdGpuHsaKernel
} else if arch == "nvptx64" {
return None;
FnAttribute::NvptxKernel
} else {
panic!("Architecture {} does not support GpuKernel calling convention", arch);
}
}
Conv::AvrInterrupt => return None,
Conv::AvrNonBlockingInterrupt => return None,
Conv::ArmAapcs => return None,
Conv::Msp430Intr => return None,
Conv::X86Fastcall => return None,
Conv::X86Intr => return None,
Conv::X86Stdcall => return None,
Conv::X86ThisCall => return None,
// TODO(antoyo): check if those AVR attributes are mapped correctly.
Conv::AvrInterrupt => FnAttribute::AvrSignal,
Conv::AvrNonBlockingInterrupt => FnAttribute::AvrInterrupt,
Conv::ArmAapcs => FnAttribute::ArmPcs("aapcs"),
Conv::Msp430Intr => FnAttribute::Msp430Interrupt,
Conv::RiscvInterrupt { kind } => {
let kind = match kind {
RiscvInterruptKind::Machine => "machine",
RiscvInterruptKind::Supervisor => "supervisor",
};
FnAttribute::RiscvInterrupt(kind)
}
Conv::X86Fastcall => FnAttribute::X86FastCall,
Conv::X86Intr => FnAttribute::X86Interrupt,
Conv::X86Stdcall => FnAttribute::X86Stdcall,
Conv::X86ThisCall => FnAttribute::X86ThisCall,
// NOTE: the vectorcall calling convention is not yet implemented in GCC:
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89485
Conv::X86VectorCall => return None,
Conv::X86_64SysV => FnAttribute::SysvAbi,
Conv::X86_64Win64 => FnAttribute::MsAbi,
Conv::X86_64SysV => FnAttribute::X86SysvAbi,
Conv::X86_64Win64 => FnAttribute::X86MsAbi,
};
Some(attribute)
}