mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-28 17:53:56 +00:00
80 lines
1.6 KiB
Plaintext
80 lines
1.6 KiB
Plaintext
|
target x86_64
|
||
|
|
|
||
|
|
; copy_nonoverlapping
|
||
|
|
function u0:0(i64, i64, i64) fast {
|
||
|
|
ss0 = explicit_slot 8
|
||
|
|
ss1 = explicit_slot 8
|
||
|
|
ss2 = explicit_slot 8
|
||
|
|
ebb0(v0: i64, v1: i64, v2: i64): ; fn(src, dst, count)
|
||
|
|
v99 = iconst.i64 1
|
||
|
|
jump ebb1(v0, v1, v2)
|
||
|
|
|
||
|
|
ebb1(v10: i64, v11: i64, v12: i64):
|
||
|
|
; if no more bytes to copy, return
|
||
|
|
brz v12, ebb2
|
||
|
|
|
||
|
|
; copy one byte
|
||
|
|
v20 = uload8.i32 v10
|
||
|
|
istore8.i32 v20, v11
|
||
|
|
|
||
|
|
; increment src and dst and decrement remaining count
|
||
|
|
v30 = iadd_imm v10, 1
|
||
|
|
v31 = iadd_imm v11, 1
|
||
|
|
v32 = isub v12, v99
|
||
|
|
|
||
|
|
; loop
|
||
|
|
jump ebb1(v30, v31, v32)
|
||
|
|
|
||
|
|
ebb2:
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
; copy
|
||
|
|
function u0:0(i64, i64, i64) fast {
|
||
|
|
ss0 = explicit_slot 8
|
||
|
|
ss1 = explicit_slot 8
|
||
|
|
ss2 = explicit_slot 8
|
||
|
|
ebb0(v0: i64, v1: i64, v2: i64): ; fn(src, dst, count):
|
||
|
|
v98 = iconst.i64 8
|
||
|
|
v99 = iconst.i64 1
|
||
|
|
jump ebb1(v0, v1, v2)
|
||
|
|
|
||
|
|
; copy eight bytes
|
||
|
|
ebb1(v10: i64, v11: i64, v12: i64):
|
||
|
|
; if less than eight bytes to copy, goto ebb2
|
||
|
|
v90 = icmp ult v12, v98
|
||
|
|
brz v90, ebb2(v10, v11, v12)
|
||
|
|
|
||
|
|
; copy one byte
|
||
|
|
v80 = load.i64 v10
|
||
|
|
store.i64 v80, v11
|
||
|
|
|
||
|
|
; increment src and dst and decrement remaining count
|
||
|
|
v20 = iadd_imm v0, 1
|
||
|
|
v21 = iadd_imm v1, 1
|
||
|
|
v22 = isub v2, v98
|
||
|
|
|
||
|
|
; loop
|
||
|
|
jump ebb1(v20, v21, v22)
|
||
|
|
|
||
|
|
; copy one byte
|
||
|
|
ebb2(v30: i64, v31: i64, v32: i64):
|
||
|
|
; if no more bytes to copy, return
|
||
|
|
brz v32, ebb3
|
||
|
|
|
||
|
|
; copy one byte
|
||
|
|
v81 = uload8.i32 v30
|
||
|
|
istore8.i32 v81, v31
|
||
|
|
|
||
|
|
; increment src and dst and decrement remaining count
|
||
|
|
v40 = iadd_imm v30, 1
|
||
|
|
v41 = iadd_imm v31, 1
|
||
|
|
v42 = isub v32, v99
|
||
|
|
|
||
|
|
; loop
|
||
|
|
jump ebb2(v40, v41, v42)
|
||
|
|
|
||
|
|
; done
|
||
|
|
ebb3:
|
||
|
|
return
|
||
|
|
}
|