bjoernager/rust
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Add range attribute to scalar function results and arguments

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This commit is contained in:
Andreas Jonson 2024-07-30 11:06:26 +02:00
parent 9bad7ba324
commit cfadfabfcd
12 changed files with 159 additions and 24 deletions
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17
compiler/rustc_codegen_llvm/src/llvm/mod.rs
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@ -8,7 +8,7 @@ use std::string::FromUtf8Error;
use libc::c_uint;
use rustc_data_structures::small_c_str::SmallCStr;
use rustc_llvm::RustString;
use rustc_target::abi::Align;
use rustc_target::abi::{Align, Size, WrappingRange};
pub use self::AtomicRmwBinOp::*;
pub use self::CallConv::*;
@ -105,6 +105,21 @@ pub fn CreateAllocKindAttr(llcx: &Context, kind_arg: AllocKindFlags) -> &Attribu
unsafe { LLVMRustCreateAllocKindAttr(llcx, kind_arg.bits()) }
}
pub fn CreateRangeAttr(llcx: &Context, size: Size, range: WrappingRange) -> &Attribute {
let lower = range.start;
let upper = range.end.wrapping_add(1);
let lower_words = [lower as u64, (lower >> 64) as u64];
let upper_words = [upper as u64, (upper >> 64) as u64];
unsafe {
LLVMRustCreateRangeAttribute(
llcx,
size.bits().try_into().unwrap(),
lower_words.as_ptr(),
upper_words.as_ptr(),
)
}
}
#[derive(Copy, Clone)]
pub enum AttributePlace {
ReturnValue,