1 // RUN: %clang_cc1 -fsanitize=alignment,null,object-size,shift-base,shift-exponent,return,signed-integer-overflow,vla-bound,float-cast-overflow,integer-divide-by-zero,bool,returns-nonnull-attribute,nonnull-attribute -fsanitize-recover=alignment,null,object-size,shift-base,shift-exponent,signed-integer-overflow,vla-bound,float-cast-overflow,integer-divide-by-zero,bool,returns-nonnull-attribute,nonnull-attribute -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefix=CHECK-COMMON --check-prefix=CHECK-UBSAN
2 // RUN: %clang_cc1 -fsanitize-undefined-trap-on-error -fsanitize=alignment,null,object-size,shift-base,shift-exponent,return,signed-integer-overflow,vla-bound,float-cast-overflow,integer-divide-by-zero,bool,returns-nonnull-attribute,nonnull-attribute -fsanitize-recover=alignment,null,object-size,shift-base,shift-exponent,signed-integer-overflow,vla-bound,float-cast-overflow,integer-divide-by-zero,bool,returns-nonnull-attribute,nonnull-attribute -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefix=CHECK-COMMON --check-prefix=CHECK-TRAP
3 // RUN: %clang_cc1 -fsanitize=null -fsanitize-recover=null -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefix=CHECK-NULL
4 // RUN: %clang_cc1 -fsanitize=signed-integer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefix=CHECK-OVERFLOW
5 // REQUIRES: asserts
6
7 // CHECK-UBSAN: @[[INT:.*]] = private unnamed_addr constant { i16, i16, [6 x i8] } { i16 0, i16 11, [6 x i8] c"'int'\00" }
8
9 // FIXME: When we only emit each type once, use [[INT]] more below.
10 // CHECK-UBSAN: @[[LINE_100:.*]] = private unnamed_addr global {{.*}}, i32 100, i32 5 {{.*}} @[[INT]], i64 4, i8 1
11 // CHECK-UBSAN: @[[LINE_200:.*]] = {{.*}}, i32 200, i32 10 {{.*}}, i64 4, i8 0
12 // CHECK-UBSAN: @[[LINE_300:.*]] = {{.*}}, i32 300, i32 12 {{.*}} @{{.*}}, {{.*}} @{{.*}}
13 // CHECK-UBSAN: @[[LINE_400:.*]] = {{.*}}, i32 400, i32 12 {{.*}} @{{.*}}, {{.*}} @{{.*}}
14 // CHECK-UBSAN: @[[LINE_500:.*]] = {{.*}}, i32 500, i32 10 {{.*}} @{{.*}}, i64 4, i8 0 }
15 // CHECK-UBSAN: @[[LINE_600:.*]] = {{.*}}, i32 600, i32 3 {{.*}} @{{.*}}, i64 4, i8 1 }
16
17 // CHECK-UBSAN: @[[STRUCT_S:.*]] = private unnamed_addr constant { i16, i16, [11 x i8] } { i16 -1, i16 0, [11 x i8] c"'struct S'\00" }
18
19 // CHECK-UBSAN: @[[LINE_700:.*]] = {{.*}}, i32 700, i32 14 {{.*}} @[[STRUCT_S]], i64 4, i8 3 }
20 // CHECK-UBSAN: @[[LINE_800:.*]] = {{.*}}, i32 800, i32 12 {{.*}} @{{.*}} }
21 // CHECK-UBSAN: @[[LINE_900:.*]] = {{.*}}, i32 900, i32 11 {{.*}} @{{.*}} }
22
23 // CHECK-NULL: @[[LINE_100:.*]] = private unnamed_addr global {{.*}}, i32 100, i32 5 {{.*}}
24
25 // PR6805
26 // CHECK-COMMON-LABEL: @foo
27 // CHECK-NULL-LABEL: @foo
foo()28 void foo() {
29 union { int i; } u;
30 // CHECK-COMMON: %[[CHECK0:.*]] = icmp ne {{.*}}* %[[PTR:.*]], null
31
32 // CHECK-COMMON: %[[I8PTR:.*]] = bitcast i32* %[[PTR]] to i8*
33 // CHECK-COMMON-NEXT: %[[SIZE:.*]] = call i64 @llvm.objectsize.i64.p0i8(i8* %[[I8PTR]], i1 false)
34 // CHECK-COMMON-NEXT: %[[CHECK1:.*]] = icmp uge i64 %[[SIZE]], 4
35
36 // CHECK-COMMON: %[[PTRTOINT:.*]] = ptrtoint {{.*}}* %[[PTR]] to i64
37 // CHECK-COMMON-NEXT: %[[MISALIGN:.*]] = and i64 %[[PTRTOINT]], 3
38 // CHECK-COMMON-NEXT: %[[CHECK2:.*]] = icmp eq i64 %[[MISALIGN]], 0
39
40 // CHECK-COMMON: %[[CHECK01:.*]] = and i1 %[[CHECK0]], %[[CHECK1]]
41 // CHECK-COMMON-NEXT: %[[OK:.*]] = and i1 %[[CHECK01]], %[[CHECK2]]
42
43 // CHECK-UBSAN: br i1 %[[OK]], {{.*}} !prof ![[WEIGHT_MD:.*]], !nosanitize
44 // CHECK-TRAP: br i1 %[[OK]], {{.*}}
45
46 // CHECK-UBSAN: %[[ARG:.*]] = ptrtoint {{.*}} %[[PTR]] to i64
47 // CHECK-UBSAN-NEXT: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_100]] to i8*), i64 %[[ARG]])
48
49 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW:#[0-9]+]]
50 // CHECK-TRAP-NEXT: unreachable
51
52 // With -fsanitize=null, only perform the null check.
53 // CHECK-NULL: %[[NULL:.*]] = icmp ne {{.*}}, null
54 // CHECK-NULL: br i1 %[[NULL]]
55 // CHECK-NULL: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_100]] to i8*), i64 %{{.*}})
56 #line 100
57 u.i=1;
58 }
59
60 // CHECK-COMMON-LABEL: @bar
bar(int * a)61 int bar(int *a) {
62 // CHECK-COMMON: %[[SIZE:.*]] = call i64 @llvm.objectsize.i64
63 // CHECK-COMMON-NEXT: icmp uge i64 %[[SIZE]], 4
64
65 // CHECK-COMMON: %[[PTRINT:.*]] = ptrtoint
66 // CHECK-COMMON-NEXT: %[[MISALIGN:.*]] = and i64 %[[PTRINT]], 3
67 // CHECK-COMMON-NEXT: icmp eq i64 %[[MISALIGN]], 0
68
69 // CHECK-UBSAN: %[[ARG:.*]] = ptrtoint
70 // CHECK-UBSAN-NEXT: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_200]] to i8*), i64 %[[ARG]])
71
72 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
73 // CHECK-TRAP-NEXT: unreachable
74
75 #line 200
76 return *a;
77 }
78
79 // CHECK-UBSAN-LABEL: @addr_space
addr_space(int * a)80 int addr_space(int __attribute__((address_space(256))) *a) {
81 // CHECK-UBSAN-NOT: __ubsan
82 return *a;
83 }
84
85 // CHECK-COMMON-LABEL: @lsh_overflow
lsh_overflow(int a,int b)86 int lsh_overflow(int a, int b) {
87 // CHECK-COMMON: %[[RHS_INBOUNDS:.*]] = icmp ule i32 %[[RHS:.*]], 31
88 // CHECK-COMMON-NEXT: br i1 %[[RHS_INBOUNDS]], label %[[CHECK_BB:.*]], label %[[CONT_BB:.*]],
89
90 // CHECK-COMMON: [[CHECK_BB]]:
91 // CHECK-COMMON-NEXT: %[[SHIFTED_OUT_WIDTH:.*]] = sub nuw nsw i32 31, %[[RHS]]
92 // CHECK-COMMON-NEXT: %[[SHIFTED_OUT:.*]] = lshr i32 %[[LHS:.*]], %[[SHIFTED_OUT_WIDTH]]
93 // CHECK-COMMON-NEXT: %[[NO_OVERFLOW:.*]] = icmp eq i32 %[[SHIFTED_OUT]], 0
94 // CHECK-COMMON-NEXT: br label %[[CONT_BB]]
95
96 // CHECK-COMMON: [[CONT_BB]]:
97 // CHECK-COMMON-NEXT: %[[VALID_BASE:.*]] = phi i1 [ true, {{.*}} ], [ %[[NO_OVERFLOW]], %[[CHECK_BB]] ]
98 // CHECK-COMMON-NEXT: %[[VALID:.*]] = and i1 %[[RHS_INBOUNDS]], %[[VALID_BASE]]
99
100 // CHECK-UBSAN: br i1 %[[VALID]], {{.*}} !prof ![[WEIGHT_MD]]
101 // CHECK-TRAP: br i1 %[[VALID]]
102
103 // CHECK-UBSAN: %[[ARG1:.*]] = zext
104 // CHECK-UBSAN-NEXT: %[[ARG2:.*]] = zext
105 // CHECK-UBSAN-NEXT: call void @__ubsan_handle_shift_out_of_bounds(i8* bitcast ({{.*}} @[[LINE_300]] to i8*), i64 %[[ARG1]], i64 %[[ARG2]])
106 // CHECK-UBSAN-NOT: call void @__ubsan_handle_shift_out_of_bounds
107
108 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
109 // CHECK-TRAP: unreachable
110 // CHECK-TRAP-NOT: call void @llvm.trap()
111
112 // CHECK-COMMON: %[[RET:.*]] = shl i32 %[[LHS]], %[[RHS]]
113 // CHECK-COMMON-NEXT: ret i32 %[[RET]]
114 #line 300
115 return a << b;
116 }
117
118 // CHECK-COMMON-LABEL: @rsh_inbounds
rsh_inbounds(int a,int b)119 int rsh_inbounds(int a, int b) {
120 // CHECK-COMMON: %[[INBOUNDS:.*]] = icmp ule i32 %[[RHS:.*]], 31
121 // CHECK-COMMON: br i1 %[[INBOUNDS]]
122
123 // CHECK-UBSAN: %[[ARG1:.*]] = zext
124 // CHECK-UBSAN-NEXT: %[[ARG2:.*]] = zext
125 // CHECK-UBSAN-NEXT: call void @__ubsan_handle_shift_out_of_bounds(i8* bitcast ({{.*}} @[[LINE_400]] to i8*), i64 %[[ARG1]], i64 %[[ARG2]])
126
127 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
128 // CHECK-TRAP-NEXT: unreachable
129
130 // CHECK-COMMON: %[[RET:.*]] = ashr i32 {{.*}}, %[[RHS]]
131 // CHECK-COMMON-NEXT: ret i32 %[[RET]]
132 #line 400
133 return a >> b;
134 }
135
136 // CHECK-COMMON-LABEL: @load
load(int * p)137 int load(int *p) {
138 // CHECK-UBSAN: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_500]] to i8*), i64 %{{.*}})
139
140 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
141 // CHECK-TRAP-NEXT: unreachable
142 #line 500
143 return *p;
144 }
145
146 // CHECK-COMMON-LABEL: @store
store(int * p,int q)147 void store(int *p, int q) {
148 // CHECK-UBSAN: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_600]] to i8*), i64 %{{.*}})
149
150 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
151 // CHECK-TRAP-NEXT: unreachable
152 #line 600
153 *p = q;
154 }
155
156 struct S { int k; };
157
158 // CHECK-COMMON-LABEL: @member_access
member_access(struct S * p)159 int *member_access(struct S *p) {
160 // CHECK-UBSAN: call void @__ubsan_handle_type_mismatch(i8* bitcast ({{.*}} @[[LINE_700]] to i8*), i64 %{{.*}})
161
162 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
163 // CHECK-TRAP-NEXT: unreachable
164 #line 700
165 return &p->k;
166 }
167
168 // CHECK-COMMON-LABEL: @signed_overflow
signed_overflow(int a,int b)169 int signed_overflow(int a, int b) {
170 // CHECK-UBSAN: %[[ARG1:.*]] = zext
171 // CHECK-UBSAN-NEXT: %[[ARG2:.*]] = zext
172 // CHECK-UBSAN-NEXT: call void @__ubsan_handle_add_overflow(i8* bitcast ({{.*}} @[[LINE_800]] to i8*), i64 %[[ARG1]], i64 %[[ARG2]])
173
174 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
175 // CHECK-TRAP-NEXT: unreachable
176 #line 800
177 return a + b;
178 }
179
180 // CHECK-COMMON-LABEL: @no_return
no_return()181 int no_return() {
182 // Reaching the end of a noreturn function is fine in C.
183 // FIXME: If the user explicitly requests -fsanitize=return, we should catch
184 // that here even though it's not undefined behavior.
185 // CHECK-COMMON-NOT: call
186 // CHECK-COMMON-NOT: unreachable
187 // CHECK-COMMON: ret i32
188 }
189
190 // CHECK-UBSAN-LABEL: @vla_bound
vla_bound(int n)191 void vla_bound(int n) {
192 // CHECK-UBSAN: icmp sgt i32 %[[PARAM:.*]], 0
193 //
194 // CHECK-UBSAN: %[[ARG:.*]] = zext i32 %[[PARAM]] to i64
195 // CHECK-UBSAN-NEXT: call void @__ubsan_handle_vla_bound_not_positive(i8* bitcast ({{.*}} @[[LINE_900]] to i8*), i64 %[[ARG]])
196 #line 900
197 int arr[n * 3];
198 }
199
200 // CHECK-UBSAN-LABEL: @int_float_no_overflow
int_float_no_overflow(__int128 n)201 float int_float_no_overflow(__int128 n) {
202 // CHECK-UBSAN-NOT: call void @__ubsan_handle
203 return n;
204 }
205
206 // CHECK-COMMON-LABEL: @int_float_overflow
int_float_overflow(unsigned __int128 n)207 float int_float_overflow(unsigned __int128 n) {
208 // This is 2**104. FLT_MAX is 2**128 - 2**104.
209 // CHECK-COMMON: %[[INBOUNDS:.*]] = icmp ule i128 %{{.*}}, -20282409603651670423947251286016
210 // CHECK-COMMON-NEXT: br i1 %[[INBOUNDS]]
211
212 // CHECK-UBSAN: call void @__ubsan_handle_float_cast_overflow(
213
214 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
215 // CHECK-TRAP-NEXT: unreachable
216 return n;
217 }
218
219 // CHECK-COMMON-LABEL: @int_fp16_overflow
int_fp16_overflow(int n,__fp16 * p)220 void int_fp16_overflow(int n, __fp16 *p) {
221 // CHECK-COMMON: %[[GE:.*]] = icmp sge i32 %{{.*}}, -65504
222 // CHECK-COMMON: %[[LE:.*]] = icmp sle i32 %{{.*}}, 65504
223 // CHECK-COMMON: %[[INBOUNDS:.*]] = and i1 %[[GE]], %[[LE]]
224 // CHECK-COMMON-NEXT: br i1 %[[INBOUNDS]]
225
226 // CHECK-UBSAN: call void @__ubsan_handle_float_cast_overflow(
227
228 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
229 // CHECK-TRAP-NEXT: unreachable
230 *p = n;
231 }
232
233 // CHECK-COMMON-LABEL: @float_int_overflow
float_int_overflow(float f)234 int float_int_overflow(float f) {
235 // CHECK-COMMON: %[[GE:.*]] = fcmp ogt float %[[F:.*]], 0xC1E0000020000000
236 // CHECK-COMMON: %[[LE:.*]] = fcmp olt float %[[F]], 0x41E0000000000000
237 // CHECK-COMMON: %[[INBOUNDS:.*]] = and i1 %[[GE]], %[[LE]]
238 // CHECK-COMMON-NEXT: br i1 %[[INBOUNDS]]
239
240 // CHECK-UBSAN: %[[CAST:.*]] = bitcast float %[[F]] to i32
241 // CHECK-UBSAN: %[[ARG:.*]] = zext i32 %[[CAST]] to i64
242 // CHECK-UBSAN: call void @__ubsan_handle_float_cast_overflow({{.*}}, i64 %[[ARG]]
243
244 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
245 // CHECK-TRAP-NEXT: unreachable
246 return f;
247 }
248
249 // CHECK-COMMON-LABEL: @long_double_int_overflow
long_double_int_overflow(long double ld)250 int long_double_int_overflow(long double ld) {
251 // CHECK-UBSAN: alloca x86_fp80
252
253 // CHECK-COMMON: %[[GE:.*]] = fcmp ogt x86_fp80 %[[F:.*]], 0xKC01E800000010000000
254 // CHECK-COMMON: %[[LE:.*]] = fcmp olt x86_fp80 %[[F]], 0xK401E800000000000000
255 // CHECK-COMMON: %[[INBOUNDS:.*]] = and i1 %[[GE]], %[[LE]]
256 // CHECK-COMMON-NEXT: br i1 %[[INBOUNDS]]
257
258 // CHECK-UBSAN: store x86_fp80 %[[F]], x86_fp80* %[[ALLOCA:.*]], !nosanitize
259 // CHECK-UBSAN: %[[ARG:.*]] = ptrtoint x86_fp80* %[[ALLOCA]] to i64
260 // CHECK-UBSAN: call void @__ubsan_handle_float_cast_overflow({{.*}}, i64 %[[ARG]]
261
262 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
263 // CHECK-TRAP-NEXT: unreachable
264 return ld;
265 }
266
267 // CHECK-COMMON-LABEL: @float_uint_overflow
float_uint_overflow(float f)268 unsigned float_uint_overflow(float f) {
269 // CHECK-COMMON: %[[GE:.*]] = fcmp ogt float %[[F:.*]], -1.{{0*}}e+00
270 // CHECK-COMMON: %[[LE:.*]] = fcmp olt float %[[F]], 0x41F0000000000000
271 // CHECK-COMMON: %[[INBOUNDS:.*]] = and i1 %[[GE]], %[[LE]]
272 // CHECK-COMMON-NEXT: br i1 %[[INBOUNDS]]
273
274 // CHECK-UBSAN: call void @__ubsan_handle_float_cast_overflow(
275
276 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
277 // CHECK-TRAP-NEXT: unreachable
278 return f;
279 }
280
281 // CHECK-COMMON-LABEL: @fp16_char_overflow
fp16_char_overflow(__fp16 * p)282 signed char fp16_char_overflow(__fp16 *p) {
283 // CHECK-COMMON: %[[GE:.*]] = fcmp ogt float %[[F:.*]], -1.29{{0*}}e+02
284 // CHECK-COMMON: %[[LE:.*]] = fcmp olt float %[[F]], 1.28{{0*}}e+02
285 // CHECK-COMMON: %[[INBOUNDS:.*]] = and i1 %[[GE]], %[[LE]]
286 // CHECK-COMMON-NEXT: br i1 %[[INBOUNDS]]
287
288 // CHECK-UBSAN: call void @__ubsan_handle_float_cast_overflow(
289
290 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
291 // CHECK-TRAP-NEXT: unreachable
292 return *p;
293 }
294
295 // CHECK-COMMON-LABEL: @float_float_overflow
float_float_overflow(double f)296 float float_float_overflow(double f) {
297 // CHECK-COMMON: %[[F:.*]] = call double @llvm.fabs.f64(
298 // CHECK-COMMON: %[[GE:.*]] = fcmp ogt double %[[F]], 0x47EFFFFFE0000000
299 // CHECK-COMMON: %[[LE:.*]] = fcmp olt double %[[F]], 0x7FF0000000000000
300 // CHECK-COMMON: %[[OUTOFBOUNDS:.*]] = and i1 %[[GE]], %[[LE]]
301 // CHECK-COMMON: %[[INBOUNDS:.*]] = xor i1 %[[OUTOFBOUNDS]], true
302 // CHECK-COMMON-NEXT: br i1 %[[INBOUNDS]]
303
304 // CHECK-UBSAN: call void @__ubsan_handle_float_cast_overflow(
305
306 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
307 // CHECK-TRAP-NEXT: unreachable
308 return f;
309 }
310
311 // CHECK-COMMON-LABEL: @int_divide_overflow
312 // CHECK-OVERFLOW-LABEL: @int_divide_overflow
int_divide_overflow(int a,int b)313 int int_divide_overflow(int a, int b) {
314 // CHECK-COMMON: %[[ZERO:.*]] = icmp ne i32 %[[B:.*]], 0
315 // CHECK-OVERFLOW-NOT: icmp ne i32 %{{.*}}, 0
316
317 // CHECK-COMMON: %[[AOK:.*]] = icmp ne i32 %[[A:.*]], -2147483648
318 // CHECK-COMMON-NEXT: %[[BOK:.*]] = icmp ne i32 %[[B]], -1
319 // CHECK-COMMON-NEXT: %[[OVER:.*]] = or i1 %[[AOK]], %[[BOK]]
320 // CHECK-COMMON: %[[OK:.*]] = and i1 %[[ZERO]], %[[OVER]]
321 // CHECK-COMMON: br i1 %[[OK]]
322
323 // CHECK-OVERFLOW: %[[AOK:.*]] = icmp ne i32 %[[A:.*]], -2147483648
324 // CHECK-OVERFLOW-NEXT: %[[BOK:.*]] = icmp ne i32 %[[B:.*]], -1
325 // CHECK-OVERFLOW-NEXT: %[[OK:.*]] = or i1 %[[AOK]], %[[BOK]]
326 // CHECK-OVERFLOW: br i1 %[[OK]]
327
328 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
329 // CHECK-TRAP: unreachable
330 return a / b;
331
332 // CHECK-COMMON: }
333 // CHECK-OVERFLOW: }
334 }
335
336 // CHECK-COMMON-LABEL: @sour_bool
sour_bool(_Bool * p)337 _Bool sour_bool(_Bool *p) {
338 // CHECK-COMMON: %[[OK:.*]] = icmp ule i8 {{.*}}, 1
339 // CHECK-COMMON: br i1 %[[OK]]
340
341 // CHECK-UBSAN: call void @__ubsan_handle_load_invalid_value(i8* bitcast ({{.*}}), i64 {{.*}})
342
343 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
344 // CHECK-TRAP: unreachable
345 return *p;
346 }
347
348 // CHECK-COMMON-LABEL: @ret_nonnull
349 __attribute__((returns_nonnull))
ret_nonnull(int * a)350 int *ret_nonnull(int *a) {
351 // CHECK-COMMON: [[OK:%.*]] = icmp ne i32* {{.*}}, null
352 // CHECK-COMMON: br i1 [[OK]]
353
354 // CHECK-UBSAN: call void @__ubsan_handle_nonnull_return
355
356 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
357 // CHECK-TRAP: unreachable
358 return a;
359 }
360
361 // CHECK-COMMON-LABEL: @call_decl_nonnull
362 __attribute__((nonnull)) void decl_nonnull(int *a);
call_decl_nonnull(int * a)363 void call_decl_nonnull(int *a) {
364 // CHECK-COMMON: [[OK:%.*]] = icmp ne i32* {{.*}}, null
365 // CHECK-COMMON: br i1 [[OK]]
366
367 // CHECK-UBSAN: call void @__ubsan_handle_nonnull_arg
368
369 // CHECK-TRAP: call void @llvm.trap() [[NR_NUW]]
370 // CHECK-TRAP: unreachable
371 decl_nonnull(a);
372 }
373
374 // CHECK-COMMON-LABEL: @call_nonnull_variadic
375 __attribute__((nonnull)) void nonnull_variadic(int a, ...);
call_nonnull_variadic(int a,int * b)376 void call_nonnull_variadic(int a, int *b) {
377 // CHECK-COMMON: [[OK:%.*]] = icmp ne i32* {{.*}}, null
378 // CHECK-COMMON: br i1 [[OK]]
379
380 // CHECK-UBSAN: call void @__ubsan_handle_nonnull_arg
381 // CHECK-UBSAN-NOT: __ubsan_handle_nonnull_arg
382
383 // CHECK-COMMON: call void (i32, ...) @nonnull_variadic
384 nonnull_variadic(a, b);
385 }
386
387 // CHECK-UBSAN: ![[WEIGHT_MD]] = !{!"branch_weights", i32 1048575, i32 1}
388
389 // CHECK-TRAP: attributes [[NR_NUW]] = { noreturn nounwind }
390