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