1#mach: crisv32
2#output: Basic clock cycles, total @: 54\n
3#output: Memory source stall cycles: 0\n
4#output: Memory read-after-write stall cycles: 0\n
5#output: Movem source stall cycles: 0\n
6#output: Movem destination stall cycles: 0\n
7#output: Movem address stall cycles: 0\n
8#output: Multiplication source stall cycles: 0\n
9#output: Jump source stall cycles: 0\n
10#output: Branch misprediction stall cycles: 18\n
11#output: Jump target stall cycles: 0\n
12#sim: --cris-cycles=basic
13
14; Check branch penalties.  It is assumed that the taken-counters
15; in the bimodal branch-predictors start at 0, meaning two taken
16; branches are required for a branch to be predicted as taken
17; for each counter, from reset.  None of these branches go
18; to the end of a cache-line and none map to the same counter.
19
20 .include "testutils.inc"
21 startnostack
22 ba 0f		; No penalty: always-taken condition not "predicted".
23 nop
24 nop
250:
26 setf c
27 bcs 0f		; Penalty 2 cycles.
28 nop
29
30 nop
310:
32 clearf c
33 bcc 0f		; Penalty 2 cycles, though branch is a nop.
34 moveq 4,r0	; Execute 5 times:
35
360:
37 move.d r0,r0
38 bne 0b		; Mispredicted 3 out of 5 times: penalty 3*2 cycles.
39 subq 1,r0
40
410:
42 beq 0f		; Not taken; no penalty.
43 nop
44
45 nop
460:
47
48; (Almost) same insns, but with 16-bit bCC insns.
49
50 ba 0f		; No penalty: always-taken condition not "predicted".
51 nop
52 .space 520
530:
54 setf c
55 bcs 0f		; Penalty 2 cycles.
56 nop
57
58 .space 520
590:
60 moveq 4,r0	; Execute 5 times:
610:
62 ba 1f
63 move.d r0,r0	; Mispredicted 3 out of 5 times:
64 .space 520
651:
66 bne 0b		; Penalty 3*2 cycles.
67 subq 1,r0
68
69 beq 0f		; Not taken; no penalty.
70 nop
710:
72 break 15
73