1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
# See LICENSE for license details.
#*****************************************************************************
# ld.S
#-----------------------------------------------------------------------------
#
# Test ld instruction.
#
#include "riscv_test.h"
#include "test_macros.h"
RVTEST_RV64U
RVTEST_CODE_BEGIN
#-------------------------------------------------------------
# Basic tests
#-------------------------------------------------------------
TEST_LD_OP( 2, ld, 0x00ff00ff00ff00ff, 0, tdat );
TEST_LD_OP( 3, ld, 0xff00ff00ff00ff00, 8, tdat );
TEST_LD_OP( 4, ld, 0x0ff00ff00ff00ff0, 16, tdat );
TEST_LD_OP( 5, ld, 0xf00ff00ff00ff00f, 24, tdat );
# Test with negative offset
TEST_LD_OP( 6, ld, 0x00ff00ff00ff00ff, -24, tdat4 );
TEST_LD_OP( 7, ld, 0xff00ff00ff00ff00, -16, tdat4 );
TEST_LD_OP( 8, ld, 0x0ff00ff00ff00ff0, -8, tdat4 );
TEST_LD_OP( 9, ld, 0xf00ff00ff00ff00f, 0, tdat4 );
# Test with a negative base
TEST_CASE( 10, x5, 0x00ff00ff00ff00ff, \
la x1, tdat; \
addi x1, x1, -32; \
ld x5, 32(x1); \
)
# Test with unaligned base
TEST_CASE( 11, x5, 0xff00ff00ff00ff00, \
la x1, tdat; \
addi x1, x1, -3; \
ld x5, 11(x1); \
)
#-------------------------------------------------------------
# Bypassing tests
#-------------------------------------------------------------
TEST_LD_DEST_BYPASS( 12, 0, ld, 0x0ff00ff00ff00ff0, 8, tdat2 );
TEST_LD_DEST_BYPASS( 13, 1, ld, 0xf00ff00ff00ff00f, 8, tdat3 );
TEST_LD_DEST_BYPASS( 14, 2, ld, 0xff00ff00ff00ff00, 8, tdat1 );
TEST_LD_SRC1_BYPASS( 15, 0, ld, 0x0ff00ff00ff00ff0, 8, tdat2 );
TEST_LD_SRC1_BYPASS( 16, 1, ld, 0xf00ff00ff00ff00f, 8, tdat3 );
TEST_LD_SRC1_BYPASS( 17, 2, ld, 0xff00ff00ff00ff00, 8, tdat1 );
#-------------------------------------------------------------
# Test write-after-write hazard
#-------------------------------------------------------------
TEST_CASE( 18, x2, 2, \
la x5, tdat; \
ld x2, 0(x5); \
li x2, 2; \
)
TEST_CASE( 19, x2, 2, \
la x5, tdat; \
ld x2, 0(x5); \
nop; \
li x2, 2; \
)
# Test unaligned accesses, if the target supports them.
# Assume little-endian
TEST_LD_OP( 1000, ld, 0x00ff00ff00ff00ff, 0, tdat );
TEST_LD_OP( 1001, ld, 0x0000ff00ff00ff00, 1, tdat );
TEST_LD_OP( 1002, ld, 0xff0000ff00ff00ff, 2, tdat );
TEST_LD_OP( 1003, ld, 0x00ff0000ff00ff00, 3, tdat );
TEST_LD_OP( 1004, ld, 0xff00ff0000ff00ff, 4, tdat );
TEST_LD_OP( 1005, ld, 0x00ff00ff0000ff00, 5, tdat );
TEST_LD_OP( 1006, ld, 0xff00ff00ff0000ff, 6, tdat );
TEST_LD_OP( 1007, ld, 0x00ff00ff00ff0000, 7, tdat );
skip_unaligned_tests:
TEST_PASSFAIL
.align 2
.global mtvec_handler
mtvec_handler:
# Only unaligned access tests should trap
li t0, 1000
blt TESTNUM, t0, fail
li t0, CAUSE_MISALIGNED_LOAD
csrr t1, mcause
bne t0, t1, fail
la t0, skip_unaligned_tests
csrw mepc, t0
mret
RVTEST_CODE_END
.data
RVTEST_DATA_BEGIN
TEST_DATA
tdat:
tdat1: .dword 0x00ff00ff00ff00ff
tdat2: .dword 0xff00ff00ff00ff00
tdat3: .dword 0x0ff00ff00ff00ff0
tdat4: .dword 0xf00ff00ff00ff00f
RVTEST_DATA_END
|
