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Generalized memset and memcpy

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This commit is contained in:
Denis Merigoux 2018-09-07 15:39:39 -07:00 • committed by Eduard-Mihai Burtescu
parent 0514c7b1b2
commit d77e34f35b
23 changed files with 444 additions and 368 deletions
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40
src/librustc_codegen_llvm/base.rs
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@ -73,7 +73,9 @@ use rustc_data_structures::small_c_str::SmallCStr;
use rustc_data_structures::sync::Lrc;
use rustc_data_structures::indexed_vec::Idx;
use interfaces::{BuilderMethods, ConstMethods, TypeMethods};
use interfaces::{
BuilderMethods, ConstMethods, BaseTypeMethods, DerivedTypeMethods, DerivedIntrinsicMethods,
};
use std::any::Any;
use std::cmp;
@ -431,13 +433,13 @@ pub fn to_immediate_scalar<'a, 'tcx: 'a, Builder: BuilderMethods<'a, 'tcx>>(
val
}
pub fn call_memcpy(
bx: &Builder<'_, 'll, '_>,
dst: &'ll Value,
pub fn call_memcpy<'a, 'tcx: 'a, Builder: BuilderMethods<'a, 'tcx>>(
bx: &Builder,
dst: Builder::Value,
dst_align: Align,
src: &'ll Value,
src: Builder::Value,
src_align: Align,
n_bytes: &'ll Value,
n_bytes: Builder::Value,
flags: MemFlags,
) {
if flags.contains(MemFlags::NONTEMPORAL) {
@ -450,16 +452,16 @@ pub fn call_memcpy(
let cx = bx.cx();
let src_ptr = bx.pointercast(src, cx.type_i8p());
let dst_ptr = bx.pointercast(dst, cx.type_i8p());
let size = bx.intcast(n_bytes, cx.isize_ty, false);
let size = bx.intcast(n_bytes, cx.type_isize(), false);
let volatile = flags.contains(MemFlags::VOLATILE);
bx.memcpy(dst_ptr, dst_align.abi(), src_ptr, src_align.abi(), size, volatile);
}
pub fn memcpy_ty(
bx: &Builder<'_, 'll, '_>,
dst: &'ll Value,
pub fn memcpy_ty<'a, 'tcx: 'a, Builder: BuilderMethods<'a, 'tcx>>(
bx: &Builder,
dst: Builder::Value,
dst_align: Align,
src: &'ll Value,
src: Builder::Value,
src_align: Align,
layout: TyLayout<'tcx>,
flags: MemFlags,
@ -472,15 +474,15 @@ pub fn memcpy_ty(
call_memcpy(bx, dst, dst_align, src, src_align, bx.cx().const_usize(size), flags);
}
pub fn call_memset(
bx: &Builder<'_, 'll, '_>,
ptr: &'ll Value,
fill_byte: &'ll Value,
size: &'ll Value,
align: &'ll Value,
pub fn call_memset<'a, 'tcx: 'a, Builder: BuilderMethods<'a, 'tcx>>(
bx: &Builder,
ptr: Builder::Value,
fill_byte: Builder::Value,
size: Builder::Value,
align: Builder::Value,
volatile: bool,
) -> &'ll Value {
let ptr_width = &bx.cx().sess().target.target.target_pointer_width;
) -> Builder::Value {
let ptr_width = &bx.sess().target.target.target_pointer_width;
let intrinsic_key = format!("llvm.memset.p0i8.i{}", ptr_width);
let llintrinsicfn = bx.cx().get_intrinsic(&intrinsic_key);
let volatile = bx.cx().const_bool(volatile);