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# D30V parallel optimization test
# assemble with "-O"
 
        .text
start:
        abs     r1,r2
        abs     r3,r4
 
        notfg   f0,f4
        notfg   f1,f2
 
        abs     r1,r2
        notfg   f1,f2
 
# both change C flag
        add     r1,r2,r3
        notfg   C,f0
 
# one uses and one changes C flag
        add     r1,r2,r3
        notfg   f0,C
 
        bra     .
        abs     r1,r2
 
        abs     r1,r2
        bra     .
 
        bsr     .
        abs     r1,r2
 
        abs     r1,r2
        abs     r1,r2
        bsr     .
 
        ldb     r1,@(r2,r3)
        stb     r7,@(r8,r9)
 
        stb     r7,@(r8,r9)
        ldb     r1,@(r2,r3)
 
        ldb     r7,@(r8,r9)
        ldb     r1,@(r2,r3)
 
        stb     r7,@(r8,r9)
        stb     r1,@(r2,r3)
 
        add     r3, r3, r6
        stw     r2, @(r3, 0)
 
# should be serial because of conditional execution
        cmple   f0,r4,r5
        jmp/tx  0x0
 
        cmple   f0,r4,r5
        jmp/fx  0x0
 
        cmple   f0,r4,r5
        jmp/xt  0x0
 
        cmple   f0,r4,r5
        jmp/xf  0x0
 
        cmple   f0,r4,r5
        jmp/tt  0x0
 
        cmple   f0,r4,r5
        jmp/tf  0x0
 
        cmple   f1,r4,r5
        jmp/tx  0x0
 
        cmple   f1,r4,r5
        jmp/xt  0x0
 
        # serial because of the r4 dependency
        add     r4, r0, 1
        cmple   f0, r4, r5
 
        # parallel
        add     r4, r0, 1
        cmple   f0, r3, r5
 
        # serial because ld2w loads r5
        ld2w    r4,@(r0,r6)
        adds    r5,r19,r20
 
        # serial because ld2w loads r5
        ld2w    r4,@(r0,r6)
        adds    r3,r5,r20
 
        # parallel even though ld2w uses r6 and adds changes it
        ld2w    r4,@(r0,r6)
        adds    r6,r19,r20
 
        # parallel
        ld2w    r4,@(r0,r6)
        adds    r7,r19,r20
 
        # parallel
        ld2w    r4,@(r0,r6)
        adds    r7,r0,r20
 
        # parallel even though st2w uses r5 and adds modifies it
        st2w    r4,@(r0,r6)
        adds    r5,r19,r20
 
        # parallel, both use but don't modify r5
        st2w    r4,@(r0,r6)
        adds    r3,r5,r20
 
        # parallel even though st2w uses r6 and adds changes it
        st2w    r4,@(r0,r6)
        adds    r6,r19,r20
 
        # parallel
        st2w    r4,@(r0,r6)
        adds    r7,r19,r20
 
        # parallel
        st2w    r4,@(r0,r6)
        adds    r7,r0,r20
 
# test memory dependencies
 
        # always serial because one could overwrite the other
        st2w    r10,@(r3,r4)
        st2w    r40,@(r43,r44)
 
        # always serial
        stw     r1,@(r2,r3)
        ldw     r41,@(r42,r43)
 
        # reads can happen in parallel but the current architecture
        # doesn't support it
        ldw     r1,@(r2,r3)
        ldb     r41,@(r42,r43)
 
# test post increment and decrement dependencies
 
        # serial
        ldw     r4,@(r6+,r11)
        adds    r9,r6,2
 
        # parallel, modification to r6 happens last
        adds    r9,r6,2
        ldw     r4,@(r6-,r11)
 
        # serial
        stw     r4,@(r6-,r11)
        adds    r9,r6,2
 
        # parallel
        ldw     r4,@(r6,r11)
        adds    r9,r6,2
 
        # parallel
        adds    r9,r6,2
        ldw     r4,@(r6,r11)
 
# if the first instruction is a jmp, don't parallelize
        jmp     0
        abs     r1,r2
 
        jsr     0
        abs     r1,r2
 
        .align  3
 
        bra     0
        abs     r1,r2
 
        bsr     0
        abs     r1,r2
 
# Explicitly prohibited from parallel execution.
# The labels are here to prevent instruction pairs
#  from being merged with following pairs.
 
label1:
        st2w     r2, @(r2, r3)
        addhlll  r4, r5, r6
label2:
        st4hb    r8, @(r8, r9)
        subhllh  r10, r11, r12
label3:
        ld2w     r14, @(r14, r15)
        mulhxhl  r16, r17, r18
label4:
        ldw      r19, @(r20, r21)
        mulx2h   r22, r23, r24
label5:
        ldh      r25, @(r26, r27)
        mul2h    r28, r29, r30
 
# Insertion of NOPs required to prevent pipeline clashes.
 
label6:
        mul r1,r2,r3
        mulhxll r4,r5,r6
        add r7, r8, r9
label7:
 
        mul  r2,r3,r4
        ldw  r5, @(r6,r0)
 
        ldw  r10, @(r11, r0) <- mul r7,r8,r9
 
        mul  r12,r13,r14 -> ldw r15, @(r16, r0)
 
        mac1 r2,r3,r4
        ldw  r5, @(r6,r0)
 
        ldw  r10, @(r11, r0) <- mac0 r7,r8,r9
        ldw  r10, @(r11, r0)
 

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[/] [openrisc/] [trunk/] [gnu-old/] [binutils-2.18.50/] [gas/] [testsuite/] [gas/] [d30v/] [opt.s] - Blame information for rev 816

Line No.	Rev	Author	Line
1	38	julius	`# D30V parallel optimization test`
2			`# assemble with "-O"`
3
4			`.text`
5			`start:`
6			`abs r1,r2`
7			`abs r3,r4`
8
9			`notfg f0,f4`
10			`notfg f1,f2`
11
12			`abs r1,r2`
13			`notfg f1,f2`
14
15			`# both change C flag`
16			`add r1,r2,r3`
17			`notfg C,f0`
18
19			`# one uses and one changes C flag`
20			`add r1,r2,r3`
21			`notfg f0,C`
22
23			`bra .`
24			`abs r1,r2`
25
26			`abs r1,r2`
27			`bra .`
28
29			`bsr .`
30			`abs r1,r2`
31
32			`abs r1,r2`
33			`abs r1,r2`
34			`bsr .`
35
36			`ldb r1,@(r2,r3)`
37			`stb r7,@(r8,r9)`
38
39			`stb r7,@(r8,r9)`
40			`ldb r1,@(r2,r3)`
41
42			`ldb r7,@(r8,r9)`
43			`ldb r1,@(r2,r3)`
44
45			`stb r7,@(r8,r9)`
46			`stb r1,@(r2,r3)`
47
48			`add r3, r3, r6`
49			`stw r2, @(r3, 0)`
50
51			`# should be serial because of conditional execution`
52			`cmple f0,r4,r5`
53			`jmp/tx 0x0`
54
55			`cmple f0,r4,r5`
56			`jmp/fx 0x0`
57
58			`cmple f0,r4,r5`
59			`jmp/xt 0x0`
60
61			`cmple f0,r4,r5`
62			`jmp/xf 0x0`
63
64			`cmple f0,r4,r5`
65			`jmp/tt 0x0`
66
67			`cmple f0,r4,r5`
68			`jmp/tf 0x0`
69
70			`cmple f1,r4,r5`
71			`jmp/tx 0x0`
72
73			`cmple f1,r4,r5`
74			`jmp/xt 0x0`
75
76			`# serial because of the r4 dependency`
77			`add r4, r0, 1`
78			`cmple f0, r4, r5`
79
80			`# parallel`
81			`add r4, r0, 1`
82			`cmple f0, r3, r5`
83
84			`# serial because ld2w loads r5`
85			`ld2w r4,@(r0,r6)`
86			`adds r5,r19,r20`
87
88			`# serial because ld2w loads r5`
89			`ld2w r4,@(r0,r6)`
90			`adds r3,r5,r20`
91
92			`# parallel even though ld2w uses r6 and adds changes it`
93			`ld2w r4,@(r0,r6)`
94			`adds r6,r19,r20`
95
96			`# parallel`
97			`ld2w r4,@(r0,r6)`
98			`adds r7,r19,r20`
99
100			`# parallel`
101			`ld2w r4,@(r0,r6)`
102			`adds r7,r0,r20`
103
104			`# parallel even though st2w uses r5 and adds modifies it`
105			`st2w r4,@(r0,r6)`
106			`adds r5,r19,r20`
107
108			`# parallel, both use but don't modify r5`
109			`st2w r4,@(r0,r6)`
110			`adds r3,r5,r20`
111
112			`# parallel even though st2w uses r6 and adds changes it`
113			`st2w r4,@(r0,r6)`
114			`adds r6,r19,r20`
115
116			`# parallel`
117			`st2w r4,@(r0,r6)`
118			`adds r7,r19,r20`
119
120			`# parallel`
121			`st2w r4,@(r0,r6)`
122			`adds r7,r0,r20`
123
124			`# test memory dependencies`
125
126			`# always serial because one could overwrite the other`
127			`st2w r10,@(r3,r4)`
128			`st2w r40,@(r43,r44)`
129
130			`# always serial`
131			`stw r1,@(r2,r3)`
132			`ldw r41,@(r42,r43)`
133
134			`# reads can happen in parallel but the current architecture`
135			`# doesn't support it`
136			`ldw r1,@(r2,r3)`
137			`ldb r41,@(r42,r43)`
138
139			`# test post increment and decrement dependencies`
140
141			`# serial`
142			`ldw r4,@(r6+,r11)`
143			`adds r9,r6,2`
144
145			`# parallel, modification to r6 happens last`
146			`adds r9,r6,2`
147			`ldw r4,@(r6-,r11)`
148
149			`# serial`
150			`stw r4,@(r6-,r11)`
151			`adds r9,r6,2`
152
153			`# parallel`
154			`ldw r4,@(r6,r11)`
155			`adds r9,r6,2`
156
157			`# parallel`
158			`adds r9,r6,2`
159			`ldw r4,@(r6,r11)`
160
161			`# if the first instruction is a jmp, don't parallelize`
162			`jmp 0`
163			`abs r1,r2`
164
165			`jsr 0`
166			`abs r1,r2`
167
168			`.align 3`
169
170			`bra 0`
171			`abs r1,r2`
172
173			`bsr 0`
174			`abs r1,r2`
175
176			`# Explicitly prohibited from parallel execution.`
177			`# The labels are here to prevent instruction pairs`
178			`# from being merged with following pairs.`
179
180			`label1:`
181			`st2w r2, @(r2, r3)`
182			`addhlll r4, r5, r6`
183			`label2:`
184			`st4hb r8, @(r8, r9)`
185			`subhllh r10, r11, r12`
186			`label3:`
187			`ld2w r14, @(r14, r15)`
188			`mulhxhl r16, r17, r18`
189			`label4:`
190			`ldw r19, @(r20, r21)`
191			`mulx2h r22, r23, r24`
192			`label5:`
193			`ldh r25, @(r26, r27)`
194			`mul2h r28, r29, r30`
195
196			`# Insertion of NOPs required to prevent pipeline clashes.`
197
198			`label6:`
199			`mul r1,r2,r3`
200			`mulhxll r4,r5,r6`
201			`add r7, r8, r9`
202			`label7:`
203
204			`mul r2,r3,r4`
205			`ldw r5, @(r6,r0)`
206
207			`ldw r10, @(r11, r0) <- mul r7,r8,r9`
208
209			`mul r12,r13,r14 -> ldw r15, @(r16, r0)`
210
211			`mac1 r2,r3,r4`
212			`ldw r5, @(r6,r0)`
213
214			`ldw r10, @(r11, r0) <- mac0 r7,r8,r9`
215			`ldw r10, @(r11, r0)`
216