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Diffstat (limited to '')
-rw-r--r-- | compiler/rustc_target/src/abi/call/nvptx.rs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/compiler/rustc_target/src/abi/call/nvptx.rs b/compiler/rustc_target/src/abi/call/nvptx.rs new file mode 100644 index 000000000..428dd95bb --- /dev/null +++ b/compiler/rustc_target/src/abi/call/nvptx.rs @@ -0,0 +1,33 @@ +// Reference: PTX Writer's Guide to Interoperability +// https://docs.nvidia.com/cuda/ptx-writers-guide-to-interoperability + +use crate::abi::call::{ArgAbi, FnAbi}; + +fn classify_ret<Ty>(ret: &mut ArgAbi<'_, Ty>) { + if ret.layout.is_aggregate() && ret.layout.size.bits() > 32 { + ret.make_indirect(); + } else { + ret.extend_integer_width_to(32); + } +} + +fn classify_arg<Ty>(arg: &mut ArgAbi<'_, Ty>) { + if arg.layout.is_aggregate() && arg.layout.size.bits() > 32 { + arg.make_indirect(); + } else { + arg.extend_integer_width_to(32); + } +} + +pub fn compute_abi_info<Ty>(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); + } +} |