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/llvm-project-15.0.7/clang-tools-extra/test/clang-tidy/checkers/bugprone/
H A Dsuspicious-memset-usage.cpp6 using ::memset;
33 memset(p, '0', l); in foo()
59 memset(p, '2', l); in foo() local
60 memset(p, 0, l); in foo()
61 memset(c, '0', 1); in foo()
64 memset(p, 0x00, l); in foo()
68 memset(p, 0xcd, 1); in foo()
72 memset(p, 0, v); in foo()
76 memset(p, -1, v); in foo()
79 void *memset(int);
[all …]
H A Dundefined-memory-manipulation.cpp3 void *memset(void *, int, __SIZE_TYPE__);
10 using ::memset;
62 memset(s, 0, 5); in f()
67 memset(b, 0, sizeof(T)); in memset_temp()
96 memset(&vf, 0, sizeof(int)); in notTriviallyCopyable()
98 memset(&d, 0, sizeof(int)); in notTriviallyCopyable()
100 memset(&c, 0, sizeof(int)); in notTriviallyCopyable()
178 memset(&p, 0, sizeof(int)); in triviallyCopyable()
181 memset(&i, 0, sizeof(int)); in triviallyCopyable()
182 memset(ia, 0, sizeof(int)); in triviallyCopyable()
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/llvm-project-15.0.7/clang/test/Sema/
H A Dtranspose-memset.c4 #define memset(...) __builtin_memset(__VA_ARGS__) macro
22 memset(array, 0, sizeof(array)); in main()
23 memset(ptr, 0, sizeof(int *) * 10); in main()
24 memset(array, (int)sizeof(array), (0)); // no warning in main()
25 memset(array, (int)sizeof(array), 32); // no warning in main()
26 memset(array, 32, (0)); // no warning in main()
27 memset(array, 0, 0); // no warning in main()
36 memset(array, 0xff, ZERO); // no warning in macros()
42 memset(array, 0xff, ZERO); \ in macros()
48 memset(array, 0xff, 0); \ in macros()
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/llvm-project-15.0.7/clang/test/SemaCXX/
H A Dwarn-memset-bad-sizeof.cpp38 memset(&s, 0, sizeof(&s)); // \ in f()
40 memset(ps, 0, sizeof(ps)); // \ in f()
76 memset(&s, 0, sizeof(s)); in f()
77 memset(&s, 0, sizeof(S)); in f()
84 memset(ps, 0, sizeof(*ps)); in f()
85 memset(ps2, 0, sizeof(*ps2)); in f()
87 memset(arr, 0, sizeof(arr)); in f()
127 memset(iarr, 0, sizeof iarr); in f()
137 memset(m, 0, sizeof(Mat)); in f()
145 memset(({ in f()
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H A Dwarn-bad-memaccess.cpp12 void *memset(void *, int, unsigned);
34 memset(&x1, 0, sizeof x1); // \ in test_warn()
41 memset(&x2, 0, sizeof x2); // \ in test_warn()
126 memset(&i, 0, sizeof i); in test_nowarn()
128 memset(&y, 0, sizeof y); in test_nowarn()
129 memset(&c, 0, sizeof c); in test_nowarn()
130 memset(void_ptr, 0, 42); in test_nowarn()
131 memset(&s1, 0, sizeof s1); in test_nowarn()
132 memset(&s2, 0, sizeof s2); in test_nowarn()
133 memset(&s3, 0, sizeof s3); in test_nowarn()
[all …]
/llvm-project-15.0.7/llvm/test/Transforms/InstCombine/
H A Dmemset-1.ll12 ; Check memset(mem1, val, size) -> llvm.memset(mem1, val, size, 1).
125 ret i8* %memset
136 ret i8* %memset
148 ret i8* %memset
159 ret i8* %memset
170 ret i8* %memset
181 ret i8* %memset
190 ret i8* %memset
201 ret i8* %memset
211 ret i8* %memset
[all …]
H A Dmemset.ll17 call void @llvm.memset.p0i8.i32(i8* %target_p, i8 1, i32 0, i1 false)
18 call void @llvm.memset.p0i8.i32(i8* %target_p, i8 1, i32 1, i1 false)
19 call void @llvm.memset.p0i8.i32(i8* align 2 %target_p, i8 1, i32 2, i1 false)
20 call void @llvm.memset.p0i8.i32(i8* align 4 %target_p, i8 1, i32 4, i1 false)
21 call void @llvm.memset.p0i8.i32(i8* align 8 %target_p, i8 1, i32 8, i1 false)
32 call void @llvm.memset.p0i8.i32(i8* %p, i8 0, i32 16, i1 false)
42 call void @llvm.memset.p0i8.i32(i8* %p, i8 undef, i32 8, i1 false)
48 ; CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* [[P:%.*]], i8 undef, i32 8, i1 true)
51 call void @llvm.memset.p0i8.i32(i8* %p, i8 undef, i32 8, i1 true)
59 call void @llvm.memset.p0i8.i32(i8* %p, i8 poison, i32 8, i1 false)
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/llvm-project-15.0.7/clang/test/Analysis/
H A Dnull-deref-ps-region.c10 void *memset(void *__s, int __c, size_t __n);
28 memset(x, 0, sizeof(int)); in foo()
35 memset(x, 0, 1); in bar()
42 …memset(x, 0, 1); // expected-warning {{Null pointer passed as 1st argument to memory set function}} in testConcreteNull()
47 memset(buf, 0, 1); // no-warning in testStackArray()
52 memset(buf, 0, 1); // no-warning in testHeapSymbol()
58 memset(buf, 0, 1024); in testStackArrayOutOfBound()
65 memset(buf, 0, 1024); in testHeapSymbolOutOfBound()
72 memset(buf, 0, sizeof(buf)); // no-warning in testStackArraySameSize()
77 memset(buf, 0, 1); // no-warning in testHeapSymbolSameSize()
H A Dbstring.cpp98 memset(&d, 0, sizeof(Derived)); in memset1_inheritance()
106 memset(&d.d_mem, 0, sizeof(Derived)); in memset2_inheritance_field()
113 memset(&d.b_mem, 0, sizeof(Derived)); in memset3_inheritance_field()
123 memset(&array[1], 0, sizeof(Derived)); in memset4_array_nonpod_object()
132 memset(array, 0, sizeof(array)); in memset5_array_nonpod_object()
141 memset(array, 0, 10 * sizeof(Derived)); in memset6_new_array_nonpod_object()
152 memset(d, 0, sizeof(Derived)); in memset7_placement_new()
160 memset(d1, 0, sizeof(Derived)); in memset7_placement_new()
179 memset(&d.b_mem, 0, sizeof(Derived)); in memset8_virtual_inheritance_field()
189 memset(array, 0, 10 * sizeof(int)); in memset1_new_array()
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/llvm-project-15.0.7/clang-tools-extra/docs/clang-tidy/checks/bugprone/
H A Dsuspicious-memset-usage.rst1 .. title:: clang-tidy - bugprone-suspicious-memset-usage
3 bugprone-suspicious-memset-usage
6 This check finds ``memset()`` calls with potential mistakes in their arguments.
7 Considering the function as ``void* memset(void* destination, int fill_value,
29 Corresponding cpplint.py check name: ``runtime/memset``.
44 memset(ip, '0', 1); // suspicious
45 memset(cp, '0', 1); // OK
48 memset(ip, 0xabcd, 1); // fill value gets truncated
49 memset(ip, 0x00, 1); // OK
52 memset(ip, sizeof(int), v); // zero length, potentially swapped
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/llvm-project-15.0.7/llvm/test/CodeGen/AArch64/
H A Darm64-memset-to-bzero.ll8 ; Constant size memset to zero.
10 ; LINUX: {{b|bl}} memset
17 ; Variable size memset to zero.
19 ; LINUX: {{b|bl}} memset
27 ; Variable size checked memset to zero.
29 ; LINUX: {{b|bl}} memset
43 ; LINUX: {{b|bl}} memset
55 ; memset with something that is not a zero, no change.
57 ; LINUX: {{b|bl}} memset
67 ; LINUX: {{b|bl}} memset
[all …]
H A Darm64-memset-to-bzero-pgso.ll6 ; For small size (<= 256), we do not change memset to bzero.
8 ; CHECK-LINUX: {{b|bl}} memset
20 ; CHECK-LINUX: {{b|bl}} memset
30 ; CHECK-LINUX: {{b|bl}} memset
41 ; CHECK-LINUX: {{b|bl}} memset
56 ; CHECK-LINUX: {{b|bl}} memset
67 ; CHECK-LINUX: {{b|bl}} memset
80 ; memset with something that is not a zero, no change.
82 ; CHECK-LINUX: {{b|bl}} memset
93 ; CHECK-LINUX: {{b|bl}} memset
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/llvm-project-15.0.7/llvm/test/Transforms/GlobalOpt/
H A Dctor-memset.ll31 ; memset of all-zero global
34 call void @llvm.memset.p0.i64(ptr @g0, i8 0, i64 8, i1 false)
38 ; memset of zero prefix
46 ; memset of zero suffix
54 ; memset of some non-zero bytes
66 ; memset of some undef bytes
78 ; memset including padding bytes
88 ; memset of non-zero value (matching initializer)
96 ; memset of non-zero value (not matching initializer)
108 ; memset of zero value in differently-sized address space
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/llvm-project-15.0.7/llvm/test/CodeGen/SystemZ/
H A Dmemset-03.ll5 declare void @llvm.memset.p0i8.i32(i8 *nocapture, i8, i32, i1) nounwind
6 declare void @llvm.memset.p0i8.i64(i8 *nocapture, i8, i64, i1) nounwind
13 call void @llvm.memset.p0i8.i32(i8* %dest, i8 0, i32 0, i1 false)
22 call void @llvm.memset.p0i8.i64(i8* %dest, i8 0, i64 0, i1 false)
31 call void @llvm.memset.p0i8.i32(i8* %dest, i8 0, i32 1, i1 false)
40 call void @llvm.memset.p0i8.i64(i8* %dest, i8 0, i64 1, i1 false)
49 call void @llvm.memset.p0i8.i32(i8* %dest, i8 0, i32 2, i1 false)
58 call void @llvm.memset.p0i8.i64(i8* %dest, i8 0, i64 2, i1 false)
68 call void @llvm.memset.p0i8.i32(i8* %dest, i8 0, i32 3, i1 false)
78 call void @llvm.memset.p0i8.i64(i8* %dest, i8 0, i64 3, i1 false)
[all …]
H A Dmemset-04.ll5 declare void @llvm.memset.p0i8.i32(i8 *nocapture, i8, i32, i1) nounwind
6 declare void @llvm.memset.p0i8.i64(i8 *nocapture, i8, i64, i1) nounwind
13 call void @llvm.memset.p0i8.i32(i8* %dest, i8 -1, i32 0, i1 false)
22 call void @llvm.memset.p0i8.i64(i8* %dest, i8 -1, i64 0, i1 false)
31 call void @llvm.memset.p0i8.i32(i8* %dest, i8 -1, i32 1, i1 false)
40 call void @llvm.memset.p0i8.i64(i8* %dest, i8 -1, i64 1, i1 false)
49 call void @llvm.memset.p0i8.i32(i8* %dest, i8 -1, i32 2, i1 false)
58 call void @llvm.memset.p0i8.i64(i8* %dest, i8 -1, i64 2, i1 false)
68 call void @llvm.memset.p0i8.i32(i8* %dest, i8 -1, i32 3, i1 false)
78 call void @llvm.memset.p0i8.i64(i8* %dest, i8 -1, i64 3, i1 false)
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H A Dmemset-02.ll1 ; Test memset in cases where the set value is a constant other than 0 and -1.
5 declare void @llvm.memset.p0i8.i32(i8 *nocapture, i8, i32, i1) nounwind
6 declare void @llvm.memset.p0i8.i64(i8 *nocapture, i8, i64, i1) nounwind
13 call void @llvm.memset.p0i8.i32(i8* %dest, i8 128, i32 0, i1 false)
22 call void @llvm.memset.p0i8.i64(i8* %dest, i8 128, i64 0, i1 false)
31 call void @llvm.memset.p0i8.i32(i8* %dest, i8 128, i32 1, i1 false)
40 call void @llvm.memset.p0i8.i64(i8* %dest, i8 128, i64 1, i1 false)
49 call void @llvm.memset.p0i8.i32(i8* %dest, i8 128, i32 2, i1 false)
58 call void @llvm.memset.p0i8.i64(i8* %dest, i8 128, i64 2, i1 false)
68 call void @llvm.memset.p0i8.i32(i8* %dest, i8 128, i32 3, i1 false)
[all …]
H A Dmemset-08.ll6 declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1 immarg)
14 call void @llvm.memset.p0i8.i64(i8* align 16 %Dst, i8 %val, i64 17, i1 false)
26 call void @llvm.memset.p0i8.i64(i8* align 16 %Dst, i8 %val, i64 18, i1 false)
38 call void @llvm.memset.p0i8.i64(i8* align 16 %Dst, i8 %val, i64 19, i1 false)
50 call void @llvm.memset.p0i8.i64(i8* align 16 %Dst, i8 %val, i64 20, i1 false)
62 call void @llvm.memset.p0i8.i64(i8* align 16 %Dst, i8 %val, i64 21, i1 false)
74 call void @llvm.memset.p0i8.i64(i8* align 16 %Dst, i8 %val, i64 22, i1 false)
216 call void @llvm.memset.p0i8.i64(i8* align 16 %Dst, i8 1, i64 17, i1 false)
236 call void @llvm.memset.p0i8.i64(i8* align 16 %Dst, i8 0, i64 18, i1 false)
247 call void @llvm.memset.p0i8.i64(i8* align 16 %Dst, i8 1, i64 19, i1 false)
[all …]
/llvm-project-15.0.7/llvm/test/CodeGen/X86/
H A Dmemset-minsize.ll10 call void @llvm.memset.p0.i32(ptr align 4 %ptr, i8 0, i32 8, i1 false)
23 call void @llvm.memset.p0.i32(ptr align 4 %ptr, i8 0, i32 128, i1 false)
33 ; CHECK-NEXT: callq memset@PLT
47 ; CHECK-NEXT: callq memset@PLT
61 ; CHECK-NEXT: callq memset@PLT
75 ; CHECK-NEXT: callq memset@PLT
89 ; CHECK-NEXT: callq memset@PLT
103 ; CHECK-NEXT: callq memset@PLT
117 ; CHECK-NEXT: callq memset@PLT
131 ; CHECK-NEXT: callq memset@PLT
[all …]
/llvm-project-15.0.7/llvm/test/Transforms/MemCpyOpt/
H A Dmemset-memcpy-to-2x-memset.ll12 call void @llvm.memset.p0i8.i64(i8* %dst1, i8 %c, i64 128, i1 false)
23 call void @llvm.memset.p0i8.i64(i8* %dst1, i8 %c, i64 128, i1 false)
34 call void @llvm.memset.p0i8.i64(i8* %dst1, i8 %c, i64 100, i1 false)
45 call void @llvm.memset.p0i8.i64(i8* align 8 %dst1, i8 %c, i64 128, i1 false)
56 call void @llvm.memset.p0i8.i64(i8* align 8 %dst1, i8 %c, i64 128, i1 false)
67 call void @llvm.memset.p0i8.i32(i8* align 8 %dst1, i8 %c, i32 128, i1 false)
79 call void @llvm.memset.p0i8.i64(i8* %dst1, i8 %c, i64 128, i1 false)
92 call void @llvm.memset.p0i8.i64(i8* %dst1, i8 %c, i64 %dst1_size, i1 false)
103 call void @llvm.memset.p0i8.i64(i8* %dst1, i8 %c, i64 128, i1 false)
108 declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1)
[all …]
H A Dmemset-memcpy-oversized.ll4 ; memset -> memcpy forwarding, if memcpy is larger than memset, but trailing
20 call void @llvm.memset.p0i8.i64(i8* align 8 %b, i8 0, i64 12, i1 false)
38 call void @llvm.memset.p0i8.i64(i8* align 8 %b, i8 0, i64 12, i1 false)
56 call void @llvm.memset.p0i8.i64(i8* align 8 %a, i8 0, i64 12, i1 false)
106 call void @llvm.memset.p0i8.i64(i8* align 8 %b, i8 0, i64 12, i1 true)
111 ; Memcpy is volatile, memset is not. Cannot be optimized.
127 ; Write between memset and memcpy, can't optimize.
145 ; A write prior to the memset, which is part of the memset region.
164 ; A write prior to the memset, which is part of the memcpy (but not memset) region.
185 ; A write prior to the memset, which is part of both the memset and memcpy regions.
[all …]
/llvm-project-15.0.7/llvm/test/CodeGen/Mips/
H A Dlong-calls.ll20 declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1)
28 ; OFF: jal memset
30 ; Save the `callee` and `memset` addresses in $25 register
36 ; ON32: lui $1, %hi(memset)
37 ; ON32: addiu $25, $1, %lo(memset)
46 ; ON64: lui $2, %highest(memset)
47 ; ON64: daddiu $1, $2, %higher(memset)
49 ; ON64: daddiu $1, $1, %hi(memset)
51 ; ON64: daddiu $25, $1, %lo(memset)
55 …call void @llvm.memset.p0i8.i32(i8* align 4 bitcast ([20 x i32]* @val to i8*), i8 0, i32 80, i1 fa…
/llvm-project-15.0.7/lldb/unittests/Host/
H A DSocketAddressTest.cpp61 memset(buffer, 'x', sizeof(buffer)); in TEST_F()
64 memset(buffer, 'x', sizeof(buffer)); in TEST_F()
67 memset(buffer, 'x', sizeof(buffer)); in TEST_F()
69 memset(buffer, 'x', sizeof(buffer)); in TEST_F()
72 memset(buffer, 'x', sizeof(buffer)); in TEST_F()
75 memset(buffer, 'x', sizeof(buffer)); in TEST_F()
77 memset(buffer, 'x', sizeof(buffer)); in TEST_F()
79 memset(buffer, 'x', sizeof(buffer)); in TEST_F()
/llvm-project-15.0.7/llvm/test/Transforms/DeadStoreElimination/
H A DOverwriteStoreBegin.ll18 call void @llvm.memset.p0i8.i64(i8* align 4 %p3, i8 0, i64 28, i1 false)
95 call void @llvm.memset.p0i8.i64(i8* align 4 %p3, i8 0, i64 28, i1 false)
116 ; Atomicity of the store is weaker from the memset
145 call void @llvm.memset.p0i8.i64(i8* align 4 %p3, i8 0, i64 32, i1 false)
151 ; Changing the memset start and length is okay here because the
152 ; store is a multiple of the memset element size
185 call void @llvm.memset.p0i8.i64(i8* align 4 %p3, i8 0, i64 28, i1 false)
223 call void @llvm.memset.p0i8.i64(i8* align 8 %p3, i8 0, i64 32, i1 false)
254 call void @llvm.memset.p0i8.i64(i8* align 4 %p3, i8 0, i64 32, i1 false)
433 declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1) nounwind
[all …]
H A Dmemory-intrinsics-sizes.ll9 call void @llvm.memset.p0i8.i64(i8* align 1 %ptr, i8 0, i64 %len, i1 false)
10 call void @llvm.memset.p0i8.i64(i8* align 1 %ptr, i8 0, i64 %len, i1 false)
20 call void @llvm.memset.p0i8.i64(i8* align 1 %ptr, i8 0, i64 %len.1, i1 false)
21 call void @llvm.memset.p0i8.i64(i8* align 1 %ptr, i8 0, i64 %len.2, i1 false)
31 call void @llvm.memset.p0i8.i64(i8* align 1 %ptr, i8 0, i64 %len, i1 false)
32 call void @llvm.memset.p0i8.i64(i8* align 1 %ptr, i8 0, i64 100, i1 false)
42 call void @llvm.memset.p0i8.i64(i8* align 1 %ptr, i8 0, i64 100, i1 false)
43 call void @llvm.memset.p0i8.i64(i8* align 1 %ptr, i8 0, i64 %len, i1 false)
56 call void @llvm.memset.p0i8.i64(i8* align 1 %ptr, i8 0, i64 %len, i1 false)
68 call void @llvm.memset.p0i8.i64(i8* align 1 %ptr, i8 0, i64 %len, i1 false)
[all …]
/llvm-project-15.0.7/llvm/test/CodeGen/WebAssembly/
H A Dmem-intrinsics.ll3 ; Test memcpy, memmove, and memset intrinsics.
9 declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i1)
46 ; CHECK: call $push0=, memset, $0, $1, $2{{$}}
49 call void @llvm.memset.p0i8.i32(i8* %dst, i8 %src, i32 %len, i1 false)
54 ; CHECK: call $drop=, memset, $0, $1, $2{{$}}
57 call void @llvm.memset.p0i8.i32(i8* %dst, i8 %src, i32 %len, i1 false)
77 ; If the result value of memset doesn't get stackified, it should be marked
82 ; CHECK: call $drop=, memset, $0, $1, $2
95 call void @llvm.memset.p0i8.i32(i8* %arg, i8 %arg1, i32 %arg2, i1 false)
112 ; result of the memset *is* stackified.
[all …]

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