From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- compiler/rustc_target/src/abi/call/bpf.rs | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 compiler/rustc_target/src/abi/call/bpf.rs (limited to 'compiler/rustc_target/src/abi/call/bpf.rs') diff --git a/compiler/rustc_target/src/abi/call/bpf.rs b/compiler/rustc_target/src/abi/call/bpf.rs new file mode 100644 index 000000000..466c52553 --- /dev/null +++ b/compiler/rustc_target/src/abi/call/bpf.rs @@ -0,0 +1,31 @@ +// see https://github.com/llvm/llvm-project/blob/main/llvm/lib/Target/BPF/BPFCallingConv.td +use crate::abi::call::{ArgAbi, FnAbi}; + +fn classify_ret(ret: &mut ArgAbi<'_, Ty>) { + if ret.layout.is_aggregate() || ret.layout.size.bits() > 64 { + ret.make_indirect(); + } else { + ret.extend_integer_width_to(32); + } +} + +fn classify_arg(arg: &mut ArgAbi<'_, Ty>) { + if arg.layout.is_aggregate() || arg.layout.size.bits() > 64 { + arg.make_indirect(); + } else { + arg.extend_integer_width_to(32); + } +} + +pub fn compute_abi_info(fn_abi: &mut FnAbi<'_, Ty>) { + if !fn_abi.ret.is_ignore() { + classify_ret(&mut fn_abi.ret); + } + + for arg in &mut fn_abi.args { + if arg.is_ignore() { + continue; + } + classify_arg(arg); + } +} -- cgit v1.2.3