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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
/// Check the code generation for the alignment builtins
/// To make the test case easier to read, run SROA after generating IR to remove the alloca instructions.
// RUN: %clang_cc1 -triple=x86_64-unknown-unknown -DTEST_VOID_PTR \
// RUN: -o - -emit-llvm %s -disable-O0-optnone | opt -S -passes=sroa | \
// RUN: FileCheck %s -check-prefixes CHECK,CHECK-VOID_PTR \
// RUN: -enable-var-scope '-D$PTRTYPE=i8'
// RUN: %clang_cc1 -triple=x86_64-unknown-unknown -DTEST_FLOAT_PTR \
// RUN: -o - -emit-llvm %s -disable-O0-optnone | opt -S -passes=sroa | \
// RUN: FileCheck %s -check-prefixes CHECK,CHECK-FLOAT_PTR \
// RUN: -enable-var-scope '-D$PTRTYPE=f32'
// RUN: %clang_cc1 -triple=x86_64-unknown-unknown -DTEST_LONG \
// RUN: -o - -emit-llvm %s -disable-O0-optnone | opt -S -passes=sroa | \
// RUN: FileCheck %s -check-prefixes CHECK,CHECK-LONG -enable-var-scope
/// Check that we can handle the case where the alignment parameter is wider
/// than the source type (generate a trunc on alignment instead of zext)
// RUN: %clang_cc1 -triple=x86_64-unknown-unknown -DTEST_USHORT \
// RUN: -o - -emit-llvm %s -disable-O0-optnone | opt -S -passes=sroa | \
// RUN: FileCheck %s -check-prefixes CHECK,CHECK-USHORT -enable-var-scope
#ifdef TEST_VOID_PTR
#define TYPE void *
#elif defined(TEST_FLOAT_PTR)
#define TYPE float *
#elif defined(TEST_LONG)
#define TYPE long
#elif defined(TEST_USHORT)
#define TYPE unsigned short
#else
#error MISSING TYPE
#endif
/// Check that constant initializers work and are correct
_Bool aligned_true = __builtin_is_aligned(1024, 512);
// CHECK: @aligned_true ={{.*}} global i8 1, align 1
_Bool aligned_false = __builtin_is_aligned(123, 512);
// CHECK: @aligned_false ={{.*}} global i8 0, align 1
int down_1 = __builtin_align_down(1023, 32);
// CHECK: @down_1 ={{.*}} global i32 992, align 4
int down_2 = __builtin_align_down(256, 32);
// CHECK: @down_2 ={{.*}} global i32 256, align 4
int up_1 = __builtin_align_up(1023, 32);
// CHECK: @up_1 ={{.*}} global i32 1024, align 4
int up_2 = __builtin_align_up(256, 32);
// CHECK: @up_2 ={{.*}} global i32 256, align 4
/// Capture the IR type here to use in the remaining FileCheck captures:
// CHECK-VOID_PTR-LABEL: define {{[^@]+}}@get_type() #0
// CHECK-VOID_PTR-NEXT: entry:
// CHECK-VOID_PTR-NEXT: ret ptr null
//
// CHECK-FLOAT_PTR-LABEL: define {{[^@]+}}@get_type() #0
// CHECK-FLOAT_PTR-NEXT: entry:
// CHECK-FLOAT_PTR-NEXT: ret ptr null
//
// CHECK-LONG-LABEL: define {{[^@]+}}@get_type() #0
// CHECK-LONG-NEXT: entry:
// CHECK-LONG-NEXT: ret i64 0
//
// CHECK-USHORT-LABEL: define {{[^@]+}}@get_type() #0
// CHECK-USHORT-NEXT: entry:
// CHECK-USHORT-NEXT: ret i16 0
//
TYPE get_type(void) {
return (TYPE)0;
}
// CHECK-VOID_PTR-LABEL: define {{[^@]+}}@is_aligned
// CHECK-VOID_PTR-SAME: (ptr noundef [[PTR:%.*]], i32 noundef [[ALIGN:%.*]]) #0
// CHECK-VOID_PTR-NEXT: entry:
// CHECK-VOID_PTR-NEXT: [[ALIGNMENT:%.*]] = zext i32 [[ALIGN:%.*]] to i64
// CHECK-VOID_PTR-NEXT: [[MASK:%.*]] = sub i64 [[ALIGNMENT]], 1
// CHECK-VOID_PTR-NEXT: [[SRC_ADDR:%.*]] = ptrtoint ptr [[PTR:%.*]] to i64
// CHECK-VOID_PTR-NEXT: [[SET_BITS:%.*]] = and i64 [[SRC_ADDR]], [[MASK]]
// CHECK-VOID_PTR-NEXT: [[IS_ALIGNED:%.*]] = icmp eq i64 [[SET_BITS]], 0
// CHECK-VOID_PTR-NEXT: ret i1 [[IS_ALIGNED]]
//
// CHECK-FLOAT_PTR-LABEL: define {{[^@]+}}@is_aligned
// CHECK-FLOAT_PTR-SAME: (ptr noundef [[PTR:%.*]], i32 noundef [[ALIGN:%.*]]) #0
// CHECK-FLOAT_PTR-NEXT: entry:
// CHECK-FLOAT_PTR-NEXT: [[ALIGNMENT:%.*]] = zext i32 [[ALIGN:%.*]] to i64
// CHECK-FLOAT_PTR-NEXT: [[MASK:%.*]] = sub i64 [[ALIGNMENT]], 1
// CHECK-FLOAT_PTR-NEXT: [[SRC_ADDR:%.*]] = ptrtoint ptr [[PTR:%.*]] to i64
// CHECK-FLOAT_PTR-NEXT: [[SET_BITS:%.*]] = and i64 [[SRC_ADDR]], [[MASK]]
// CHECK-FLOAT_PTR-NEXT: [[IS_ALIGNED:%.*]] = icmp eq i64 [[SET_BITS]], 0
// CHECK-FLOAT_PTR-NEXT: ret i1 [[IS_ALIGNED]]
//
// CHECK-LONG-LABEL: define {{[^@]+}}@is_aligned
// CHECK-LONG-SAME: (i64 noundef [[PTR:%.*]], i32 noundef [[ALIGN:%.*]]) #0
// CHECK-LONG-NEXT: entry:
// CHECK-LONG-NEXT: [[ALIGNMENT:%.*]] = zext i32 [[ALIGN:%.*]] to i64
// CHECK-LONG-NEXT: [[MASK:%.*]] = sub i64 [[ALIGNMENT]], 1
// CHECK-LONG-NEXT: [[SET_BITS:%.*]] = and i64 [[PTR:%.*]], [[MASK]]
// CHECK-LONG-NEXT: [[IS_ALIGNED:%.*]] = icmp eq i64 [[SET_BITS]], 0
// CHECK-LONG-NEXT: ret i1 [[IS_ALIGNED]]
//
// CHECK-USHORT-LABEL: define {{[^@]+}}@is_aligned
// CHECK-USHORT-SAME: (i16 noundef zeroext [[PTR:%.*]], i32 noundef [[ALIGN:%.*]]) #0
// CHECK-USHORT-NEXT: entry:
// CHECK-USHORT-NEXT: [[ALIGNMENT:%.*]] = trunc i32 [[ALIGN:%.*]] to i16
// CHECK-USHORT-NEXT: [[MASK:%.*]] = sub i16 [[ALIGNMENT]], 1
// CHECK-USHORT-NEXT: [[SET_BITS:%.*]] = and i16 [[PTR:%.*]], [[MASK]]
// CHECK-USHORT-NEXT: [[IS_ALIGNED:%.*]] = icmp eq i16 [[SET_BITS]], 0
// CHECK-USHORT-NEXT: ret i1 [[IS_ALIGNED]]
//
_Bool is_aligned(TYPE ptr, unsigned align) {
return __builtin_is_aligned(ptr, align);
}
// NOTYET-POINTER-NEXT: [[ALIGNED_RESULT:%.*]] = call [[$TYPE]] @llvm.ptrmask.p0[[$PTRTYPE]].p0i8.i64(ptr [[OVER_BOUNDARY]], [[ALIGN_TYPE]] [[INVERTED_MASK]])
// CHECK-VOID_PTR-LABEL: define {{[^@]+}}@align_up
// CHECK-VOID_PTR-SAME: (ptr noundef [[PTR:%.*]], i32 noundef [[ALIGN:%.*]]) #0
// CHECK-VOID_PTR-NEXT: entry:
// CHECK-VOID_PTR-NEXT: [[ALIGNMENT:%.*]] = zext i32 [[ALIGN:%.*]] to i64
// CHECK-VOID_PTR-NEXT: [[MASK:%.*]] = sub i64 [[ALIGNMENT]], 1
// CHECK-VOID_PTR-NEXT: [[OVER_BOUNDARY:%.*]] = getelementptr inbounds i8, ptr [[PTR:%.*]], i64 [[MASK]]
// CHECK-VOID_PTR-NEXT: [[INVERTED_MASK:%.*]] = xor i64 [[MASK]], -1
// CHECK-VOID_PTR-NEXT: [[ALIGNED_RESULT:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[OVER_BOUNDARY]], i64 [[INVERTED_MASK]])
// CHECK-VOID_PTR-NEXT: ret ptr [[ALIGNED_RESULT]]
//
// CHECK-FLOAT_PTR-LABEL: define {{[^@]+}}@align_up
// CHECK-FLOAT_PTR-SAME: (ptr noundef [[PTR:%.*]], i32 noundef [[ALIGN:%.*]]) #0
// CHECK-FLOAT_PTR-NEXT: entry:
// CHECK-FLOAT_PTR-NEXT: [[ALIGNMENT:%.*]] = zext i32 [[ALIGN:%.*]] to i64
// CHECK-FLOAT_PTR-NEXT: [[MASK:%.*]] = sub i64 [[ALIGNMENT]], 1
// CHECK-FLOAT_PTR-NEXT: [[OVER_BOUNDARY:%.*]] = getelementptr inbounds i8, ptr [[PTR:%.*]], i64 [[MASK]]
// CHECK-FLOAT_PTR-NEXT: [[INVERTED_MASK:%.*]] = xor i64 [[MASK]], -1
// CHECK-FLOAT_PTR-NEXT: [[ALIGNED_RESULT:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[OVER_BOUNDARY]], i64 [[INVERTED_MASK]])
// CHECK-FLOAT_PTR-NEXT: ret ptr [[ALIGNED_RESULT]]
//
// CHECK-LONG-LABEL: define {{[^@]+}}@align_up
// CHECK-LONG-SAME: (i64 noundef [[PTR:%.*]], i32 noundef [[ALIGN:%.*]]) #0
// CHECK-LONG-NEXT: entry:
// CHECK-LONG-NEXT: [[ALIGNMENT:%.*]] = zext i32 [[ALIGN:%.*]] to i64
// CHECK-LONG-NEXT: [[MASK:%.*]] = sub i64 [[ALIGNMENT]], 1
// CHECK-LONG-NEXT: [[OVER_BOUNDARY:%.*]] = add i64 [[PTR:%.*]], [[MASK]]
// CHECK-LONG-NEXT: [[INVERTED_MASK:%.*]] = xor i64 [[MASK]], -1
// CHECK-LONG-NEXT: [[ALIGNED_RESULT:%.*]] = and i64 [[OVER_BOUNDARY]], [[INVERTED_MASK]]
// CHECK-LONG-NEXT: ret i64 [[ALIGNED_RESULT]]
//
// CHECK-USHORT-LABEL: define {{[^@]+}}@align_up
// CHECK-USHORT-SAME: (i16 noundef zeroext [[PTR:%.*]], i32 noundef [[ALIGN:%.*]]) #0
// CHECK-USHORT-NEXT: entry:
// CHECK-USHORT-NEXT: [[ALIGNMENT:%.*]] = trunc i32 [[ALIGN:%.*]] to i16
// CHECK-USHORT-NEXT: [[MASK:%.*]] = sub i16 [[ALIGNMENT]], 1
// CHECK-USHORT-NEXT: [[OVER_BOUNDARY:%.*]] = add i16 [[PTR:%.*]], [[MASK]]
// CHECK-USHORT-NEXT: [[INVERTED_MASK:%.*]] = xor i16 [[MASK]], -1
// CHECK-USHORT-NEXT: [[ALIGNED_RESULT:%.*]] = and i16 [[OVER_BOUNDARY]], [[INVERTED_MASK]]
// CHECK-USHORT-NEXT: ret i16 [[ALIGNED_RESULT]]
//
TYPE align_up(TYPE ptr, unsigned align) {
return __builtin_align_up(ptr, align);
}
// NOTYET-POINTER-NEXT: [[ALIGNED_RESULT:%.*]] = call [[$TYPE]] @llvm.ptrmask.p0[[$PTRTYPE]].p0[[$PTRTYPE]].i64([[$TYPE]] [[PTR]], [[ALIGN_TYPE]] [[INVERTED_MASK]])
// CHECK-VOID_PTR-LABEL: define {{[^@]+}}@align_down
// CHECK-VOID_PTR-SAME: (ptr noundef [[PTR:%.*]], i32 noundef [[ALIGN:%.*]]) #0
// CHECK-VOID_PTR-NEXT: entry:
// CHECK-VOID_PTR-NEXT: [[ALIGNMENT:%.*]] = zext i32 [[ALIGN:%.*]] to i64
// CHECK-VOID_PTR-NEXT: [[MASK:%.*]] = sub i64 [[ALIGNMENT]], 1
// CHECK-VOID_PTR-NEXT: [[INVERTED_MASK:%.*]] = xor i64 [[MASK]], -1
// CHECK-VOID_PTR-NEXT: [[ALIGNED_RESULT:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR:%.*]], i64 [[INVERTED_MASK]])
// CHECK-VOID_PTR-NEXT: ret ptr [[ALIGNED_RESULT]]
//
// CHECK-FLOAT_PTR-LABEL: define {{[^@]+}}@align_down
// CHECK-FLOAT_PTR-SAME: (ptr noundef [[PTR:%.*]], i32 noundef [[ALIGN:%.*]]) #0
// CHECK-FLOAT_PTR-NEXT: entry:
// CHECK-FLOAT_PTR-NEXT: [[ALIGNMENT:%.*]] = zext i32 [[ALIGN:%.*]] to i64
// CHECK-FLOAT_PTR-NEXT: [[MASK:%.*]] = sub i64 [[ALIGNMENT]], 1
// CHECK-FLOAT_PTR-NEXT: [[INVERTED_MASK:%.*]] = xor i64 [[MASK]], -1
// CHECK-FLOAT_PTR-NEXT: [[ALIGNED_RESULT:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR:%.*]], i64 [[INVERTED_MASK]])
// CHECK-FLOAT_PTR-NEXT: ret ptr [[ALIGNED_RESULT]]
//
// CHECK-LONG-LABEL: define {{[^@]+}}@align_down
// CHECK-LONG-SAME: (i64 noundef [[PTR:%.*]], i32 noundef [[ALIGN:%.*]]) #0
// CHECK-LONG-NEXT: entry:
// CHECK-LONG-NEXT: [[ALIGNMENT:%.*]] = zext i32 [[ALIGN:%.*]] to i64
// CHECK-LONG-NEXT: [[MASK:%.*]] = sub i64 [[ALIGNMENT]], 1
// CHECK-LONG-NEXT: [[INVERTED_MASK:%.*]] = xor i64 [[MASK]], -1
// CHECK-LONG-NEXT: [[ALIGNED_RESULT:%.*]] = and i64 [[PTR:%.*]], [[INVERTED_MASK]]
// CHECK-LONG-NEXT: ret i64 [[ALIGNED_RESULT]]
//
// CHECK-USHORT-LABEL: define {{[^@]+}}@align_down
// CHECK-USHORT-SAME: (i16 noundef zeroext [[PTR:%.*]], i32 noundef [[ALIGN:%.*]]) #0
// CHECK-USHORT-NEXT: entry:
// CHECK-USHORT-NEXT: [[ALIGNMENT:%.*]] = trunc i32 [[ALIGN:%.*]] to i16
// CHECK-USHORT-NEXT: [[MASK:%.*]] = sub i16 [[ALIGNMENT]], 1
// CHECK-USHORT-NEXT: [[INVERTED_MASK:%.*]] = xor i16 [[MASK]], -1
// CHECK-USHORT-NEXT: [[ALIGNED_RESULT:%.*]] = and i16 [[PTR:%.*]], [[INVERTED_MASK]]
// CHECK-USHORT-NEXT: ret i16 [[ALIGNED_RESULT]]
//
TYPE align_down(TYPE ptr, unsigned align) {
return __builtin_align_down(ptr, align);
}
|
