1 /* { dg-do compile } */
2 /* -fno-tree-loop-distribute-patterns prevents conversion to memset. */
3 /* { dg-options "-O3 -fno-tree-loop-distribute-patterns" } */
4
5 #include <stdint.h>
6
7 #define NUM_ELEMS(TYPE) (1024 / sizeof (TYPE))
8
9 #define DEF_SET_IMM(TYPE, IMM, SUFFIX) \
10 void __attribute__ ((noinline, noclone)) \
11 set_##TYPE##_##SUFFIX (TYPE *a) \
12 { \
13 for (int i = 0; i < NUM_ELEMS (TYPE); i++) \
14 a[i] = IMM; \
15 }
16
17 /* --- VALID --- */
18
19 DEF_SET_IMM (int8_t, 0, imm_0)
20 DEF_SET_IMM (int16_t, 0, imm_0)
21 DEF_SET_IMM (int32_t, 0, imm_0)
22 DEF_SET_IMM (int64_t, 0, imm_0)
23
24 DEF_SET_IMM (int8_t, -1, imm_m1)
25 DEF_SET_IMM (int16_t, -1, imm_m1)
26 DEF_SET_IMM (int32_t, -1, imm_m1)
27 DEF_SET_IMM (int64_t, -1, imm_m1)
28
29 DEF_SET_IMM (int8_t, 1, imm_1)
30 DEF_SET_IMM (int16_t, 1, imm_1)
31 DEF_SET_IMM (int32_t, 1, imm_1)
32 DEF_SET_IMM (int64_t, 1, imm_1)
33
34 DEF_SET_IMM (int8_t, 127, imm_127)
35 DEF_SET_IMM (int16_t, 127, imm_127)
36 DEF_SET_IMM (int32_t, 127, imm_127)
37 DEF_SET_IMM (int64_t, 127, imm_127)
38
39 DEF_SET_IMM (int8_t, -128, imm_m128)
40 DEF_SET_IMM (int16_t, -128, imm_m128)
41 DEF_SET_IMM (int32_t, -128, imm_m128)
42 DEF_SET_IMM (int64_t, -128, imm_m128)
43
44 // No uint8_t variant - size too large for a byte
45 DEF_SET_IMM (int16_t, 256, imm_256)
46 DEF_SET_IMM (int32_t, 256, imm_256)
47 DEF_SET_IMM (int64_t, 256, imm_256)
48
49 // No uint8_t variant - size too large for a byte
50 DEF_SET_IMM (int16_t, 32512, imm_32512)
51 DEF_SET_IMM (int32_t, 32512, imm_32512)
52 DEF_SET_IMM (int64_t, 32512, imm_32512)
53
54 // No uint8_t variant - size too large for a byte
55 DEF_SET_IMM (int16_t, -32768, imm_m32768)
56 DEF_SET_IMM (int32_t, -32768, imm_m32768)
57 DEF_SET_IMM (int64_t, -32768, imm_m32768)
58
59 /* gcc will generate:
60 dup z0.b, 0x01
61 */
62 DEF_SET_IMM (int16_t, 0x0101, imm_01_pat)
63 DEF_SET_IMM (int32_t, 0x01010101, imm_01_pat)
64 DEF_SET_IMM (int64_t, 0x0101010101010101LL, imm_01_pat)
65
66 /* gcc will generate:
67 dup z0.h, 0x01
68 */
69 DEF_SET_IMM (int32_t, 0x00010001, imm_0001_pat)
70 DEF_SET_IMM (int64_t, 0x0001000100010001LL, imm_0001_pat)
71
72 /* gcc will generate:
73 dup z0.b, 0xFE (-2)
74 */
75 DEF_SET_IMM (int16_t, 0xFEFE, imm_FE_pat)
76 DEF_SET_IMM (int32_t, 0xFEFEFEFE, imm_FE_pat)
77 DEF_SET_IMM (int64_t, 0xFEFEFEFEFEFEFEFE, imm_FE_pat)
78
79 /* gcc will generate:
80 dup z0.h, 0xFFFE (-2)
81 */
82 DEF_SET_IMM (int32_t, 0xFFFEFFFE, imm_FFFE_pat)
83 DEF_SET_IMM (int64_t, 0xFFFEFFFEFFFEFFFELL, imm_FFFE_pat)
84
85 /* gcc will generate:
86 dup z0.h, 0xFE00
87 */
88 DEF_SET_IMM (int32_t, 0xFE00FE00, imm_FE00_pat)
89 DEF_SET_IMM (int64_t, 0xFE00FE00FE00FE00LL, imm_FE00_pat)
90
91
92 /* --- INVALID --- */
93
94 // This shouldn't generate a dup as it's out of range, but also the compiler
95 // shouldn't assert!
96 DEF_SET_IMM (int32_t, 129, imm_m129)
97 DEF_SET_IMM (int32_t, 32513, imm_32513)
98 DEF_SET_IMM (int32_t, -32763, imm_m32763)
99
100 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.b, #-1\n} } } */
101
102 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.b, #0\n} } } */
103
104 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.b, #1\n} } } */
105 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.h, #1\n} } } */
106 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.s, #1\n} } } */
107 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.d, #1\n} } } */
108
109 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.b, #127\n} } } */
110 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.h, #127\n} } } */
111 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.s, #127\n} } } */
112 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.d, #127\n} } } */
113
114 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.b, #-128\n} } } */
115 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.h, #-128\n} } } */
116 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.s, #-128\n} } } */
117 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.d, #-128\n} } } */
118
119 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.h, #256\n} } } */
120 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.s, #256\n} } } */
121 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.d, #256\n} } } */
122
123 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.h, #32512\n} } } */
124 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.s, #32512\n} } } */
125 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.d, #32512\n} } } */
126
127 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.h, #-32768\n} } } */
128 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.s, #-32768\n} } } */
129 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.d, #-32768\n} } } */
130
131 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.b, #-2\n} } } */
132 /* { dg-final { scan-assembler-times {\tmov\tz[0-9]+\.h, #-2\n} 2 } } */
133
134 /* { dg-final { scan-assembler {\tmov\tz[0-9]+\.h, #-512\n} } } */
135
136 /* { dg-final { scan-assembler-not {#129\n} } } */
137 /* { dg-final { scan-assembler-not {#32513\n} } } */
138 /* { dg-final { scan-assembler-not {#-32763\n} } } */