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;;; Test 68HC11 linker relaxation (group relax)
;;; 
        .sect .text
        .globl _start
_start:
;;;
;;; The following group of instructions are adjusted.
;;;
        .relax  L1x
        ldx     #table
        bset    0,x #4
L1x:
        .relax  L1y
        ldy     #table
        bset    0,y #4
L1y:
        .relax  L2x
        ldx     #table+3
        bset    0,x #4
        bset    1,x #8
L2x:
        .relax  L2y
        ldy     #table+3
        bset    0,y #4
        bset    1,y #8
L2y:
        .relax  L3x
        ldx     #table+6
        bset    0,x #4
        bset    1,x #8
        bset    2,x #12
        bset    3,x #12
        bset    4,x #12
        bset    5,x #12
L3x:
        .relax  L3y
        ldy     #table+6
        bset    0,y #4
        bset    1,y #8
        bset    2,y #12
        bset    3,y #12
        bset    4,y #12
        bset    5,y #12
L3y:
        ;; Next branch is always relative.  It must be adjusted while
        ;; above instructions are relaxed.
        bra     _start
;;;
;;; This group has the first two bset insn relaxable while the
;;; others are not.  The ldx/ldy must not be removed.
;;; 
        .relax  L4x
        ldx     #table+0xfe
        bset    0,x #4
        bset    1,x #8
        bset    2,x #12
        bset    3,x #12
        bset    4,x #12
        bset    5,x #12
L4x:
        .relax  L4y
        ldy     #table+0xfe
        bset    0,y #4
        bset    1,y #8
        bset    2,y #12
        bset    3,y #12
        bset    4,y #12
        bset    5,y #12
L4y:
;;;
;;; Relax group for bclr
;;; 
        .relax  L5x
        ldx     #table+10
        bclr    0,x #4
        bclr    1,x #8
L5x:
        .relax  L5y
        ldy     #table+16
        bclr    10,y #4
        bclr    11,y #8
L5y:
;;;
;;; Relax group for brset (with backward branch)
;;; 
        .relax  L6x
        ldx     #table+8
        brset   0,x #4 L5y
L6x:
        .relax  L7x
        ldy     #table+8
        brset   0,y #4 L6x
L7x:
;;;
;;; Relax group for brset (with forward branch)
;;; 
        .relax  L8x
        ldx     #table+8
        brset   0,x #4 brend
L8x:
        .relax  L8y
        ldy     #table+8
        brset   0,y #4 brend
L8y:
;;;
;;; Relax group for brclr (with backward branch)
;;; 
        .relax  L9x
        ldx     #table+8
        brclr   0,x #4 L8y
L9x:
        .relax  L9y
        ldy     #table+8
        brclr   0,y #4 L9x
L9y:
;;;
;;; Relax group for brclr (with forward branch)
;;; 
        .relax  L10x
        ldx     #table+8
        brclr   0,x #4 brend
L10x:
        .relax  L10y
        ldy     #table+8
        brclr   0,y #4 brend
L10y:
        nop
brend:
;;;
;;; The following are wrong use of .relax groups.
;;;
        .relax  w1
w1:
        .relax  w2
        bset    0,x #4
w2:
        .relax w3
        ldx     #table
w3:
        .relax w4
        ldy     #table+8
w4:
        .relax w5
        rts
w5:
;;;
;;; Next insn is not in a .relax group
        ldx     #table
        bset    0,x #5
        bra     _start
        rts
 
        .sect .page0
        .globl table
table:  .long 0
table4: .long 0
table8: .long 0
        .skip   10
end_table:
        .long 0
 

Line No.	Rev	Author	Line
1	38	julius	`;;; Test 68HC11 linker relaxation (group relax)`
2			`;;;`
3			`.sect .text`
4			`.globl _start`
5			`_start:`
6			`;;;`
7			`;;; The following group of instructions are adjusted.`
8			`;;;`
9			`.relax L1x`
10			`ldx #table`
11			`bset 0,x #4`
12			`L1x:`
13			`.relax L1y`
14			`ldy #table`
15			`bset 0,y #4`
16			`L1y:`
17			`.relax L2x`
18			`ldx #table+3`
19			`bset 0,x #4`
20			`bset 1,x #8`
21			`L2x:`
22			`.relax L2y`
23			`ldy #table+3`
24			`bset 0,y #4`
25			`bset 1,y #8`
26			`L2y:`
27			`.relax L3x`
28			`ldx #table+6`
29			`bset 0,x #4`
30			`bset 1,x #8`
31			`bset 2,x #12`
32			`bset 3,x #12`
33			`bset 4,x #12`
34			`bset 5,x #12`
35			`L3x:`
36			`.relax L3y`
37			`ldy #table+6`
38			`bset 0,y #4`
39			`bset 1,y #8`
40			`bset 2,y #12`
41			`bset 3,y #12`
42			`bset 4,y #12`
43			`bset 5,y #12`
44			`L3y:`
45			`;; Next branch is always relative. It must be adjusted while`
46			`;; above instructions are relaxed.`
47			`bra _start`
48			`;;;`
49			`;;; This group has the first two bset insn relaxable while the`
50			`;;; others are not. The ldx/ldy must not be removed.`
51			`;;;`
52			`.relax L4x`
53			`ldx #table+0xfe`
54			`bset 0,x #4`
55			`bset 1,x #8`
56			`bset 2,x #12`
57			`bset 3,x #12`
58			`bset 4,x #12`
59			`bset 5,x #12`
60			`L4x:`
61			`.relax L4y`
62			`ldy #table+0xfe`
63			`bset 0,y #4`
64			`bset 1,y #8`
65			`bset 2,y #12`
66			`bset 3,y #12`
67			`bset 4,y #12`
68			`bset 5,y #12`
69			`L4y:`
70			`;;;`
71			`;;; Relax group for bclr`
72			`;;;`
73			`.relax L5x`
74			`ldx #table+10`
75			`bclr 0,x #4`
76			`bclr 1,x #8`
77			`L5x:`
78			`.relax L5y`
79			`ldy #table+16`
80			`bclr 10,y #4`
81			`bclr 11,y #8`
82			`L5y:`
83			`;;;`
84			`;;; Relax group for brset (with backward branch)`
85			`;;;`
86			`.relax L6x`
87			`ldx #table+8`
88			`brset 0,x #4 L5y`
89			`L6x:`
90			`.relax L7x`
91			`ldy #table+8`
92			`brset 0,y #4 L6x`
93			`L7x:`
94			`;;;`
95			`;;; Relax group for brset (with forward branch)`
96			`;;;`
97			`.relax L8x`
98			`ldx #table+8`
99			`brset 0,x #4 brend`
100			`L8x:`
101			`.relax L8y`
102			`ldy #table+8`
103			`brset 0,y #4 brend`
104			`L8y:`
105			`;;;`
106			`;;; Relax group for brclr (with backward branch)`
107			`;;;`
108			`.relax L9x`
109			`ldx #table+8`
110			`brclr 0,x #4 L8y`
111			`L9x:`
112			`.relax L9y`
113			`ldy #table+8`
114			`brclr 0,y #4 L9x`
115			`L9y:`
116			`;;;`
117			`;;; Relax group for brclr (with forward branch)`
118			`;;;`
119			`.relax L10x`
120			`ldx #table+8`
121			`brclr 0,x #4 brend`
122			`L10x:`
123			`.relax L10y`
124			`ldy #table+8`
125			`brclr 0,y #4 brend`
126			`L10y:`
127			`nop`
128			`brend:`
129			`;;;`
130			`;;; The following are wrong use of .relax groups.`
131			`;;;`
132			`.relax w1`
133			`w1:`
134			`.relax w2`
135			`bset 0,x #4`
136			`w2:`
137			`.relax w3`
138			`ldx #table`
139			`w3:`
140			`.relax w4`
141			`ldy #table+8`
142			`w4:`
143			`.relax w5`
144			`rts`
145			`w5:`
146			`;;;`
147			`;;; Next insn is not in a .relax group`
148			`ldx #table`
149			`bset 0,x #5`
150			`bra _start`
151			`rts`
152
153			`.sect .page0`
154			`.globl table`
155			`table: .long 0`
156			`table4: .long 0`
157			`table8: .long 0`
158			`.skip 10`
159			`end_table:`
160			`.long 0`
161

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[/] [openrisc/] [trunk/] [gnu-old/] [binutils-2.18.50/] [ld/] [testsuite/] [ld-m68hc11/] [relax-group.s] - Blame information for rev 156