| blob | 421583d07ac7feac63ce704d907ba6fd945e9056 |
1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3
2 ; RUN: llc < %s -mtriple=thumbv6m | FileCheck %s
3 ; RUN: llc < %s -mtriple=thumbv6m -mattr=+execute-only | FileCheck %s -check-prefix=V6M
4 ; RUN: llc < %s -mtriple=thumbv8m.base -mattr=+execute-only | FileCheck %s -check-prefix=V8MBASE
6 define dso_local i32 @main() #0 {
7 ; CHECK-LABEL: main:
8 ; CHECK: @ %bb.0: @ %entry
9 ; CHECK-NEXT: push {r7, lr}
10 ; CHECK-NEXT: sub sp, #24
11 ; CHECK-NEXT: movs r0, #0
12 ; CHECK-NEXT: str r0, [sp, #4]
13 ; CHECK-NEXT: ldr r0, .LCPI0_0
14 ; CHECK-NEXT: ldr r0, [r0]
15 ; CHECK-NEXT: str r0, [sp, #20]
16 ; CHECK-NEXT: add r0, sp, #8
17 ; CHECK-NEXT: ldrb r0, [r0]
18 ; CHECK-NEXT: ldr r1, [sp, #20]
19 ; CHECK-NEXT: ldr r2, .LCPI0_0
20 ; CHECK-NEXT: ldr r2, [r2]
21 ; CHECK-NEXT: cmp r2, r1
22 ; CHECK-NEXT: bne .LBB0_2
23 ; CHECK-NEXT: @ %bb.1: @ %entry
24 ; CHECK-NEXT: add sp, #24
25 ; CHECK-NEXT: pop {r7, pc}
26 ; CHECK-NEXT: .LBB0_2: @ %entry
27 ; CHECK-NEXT: bl __stack_chk_fail
28 ; CHECK-NEXT: .p2align 2
29 ; CHECK-NEXT: @ %bb.3:
30 ; CHECK-NEXT: .LCPI0_0:
31 ; CHECK-NEXT: .long __stack_chk_guard
32 ;
33 ; V6M-LABEL: main:
34 ; V6M: @ %bb.0: @ %entry
35 ; V6M-NEXT: push {r7, lr}
36 ; V6M-NEXT: sub sp, #24
37 ; V6M-NEXT: movs r0, #0
38 ; V6M-NEXT: str r0, [sp, #4]
39 ; V6M-NEXT: mrs r12, apsr
40 ; V6M-NEXT: movs r0, :upper8_15:__stack_chk_guard
41 ; V6M-NEXT: lsls r0, r0, #8
42 ; V6M-NEXT: adds r0, :upper0_7:__stack_chk_guard
43 ; V6M-NEXT: lsls r0, r0, #8
44 ; V6M-NEXT: adds r0, :lower8_15:__stack_chk_guard
45 ; V6M-NEXT: lsls r0, r0, #8
46 ; V6M-NEXT: adds r0, :lower0_7:__stack_chk_guard
47 ; V6M-NEXT: msr apsr, r12
48 ; V6M-NEXT: ldr r0, [r0]
49 ; V6M-NEXT: str r0, [sp, #20]
50 ; V6M-NEXT: add r0, sp, #8
51 ; V6M-NEXT: ldrb r0, [r0]
52 ; V6M-NEXT: ldr r1, [sp, #20]
53 ; V6M-NEXT: mrs r12, apsr
54 ; V6M-NEXT: movs r2, :upper8_15:__stack_chk_guard
55 ; V6M-NEXT: lsls r2, r2, #8
56 ; V6M-NEXT: adds r2, :upper0_7:__stack_chk_guard
57 ; V6M-NEXT: lsls r2, r2, #8
58 ; V6M-NEXT: adds r2, :lower8_15:__stack_chk_guard
59 ; V6M-NEXT: lsls r2, r2, #8
60 ; V6M-NEXT: adds r2, :lower0_7:__stack_chk_guard
61 ; V6M-NEXT: msr apsr, r12
62 ; V6M-NEXT: ldr r2, [r2]
63 ; V6M-NEXT: cmp r2, r1
64 ; V6M-NEXT: bne .LBB0_2
65 ; V6M-NEXT: @ %bb.1: @ %entry
66 ; V6M-NEXT: add sp, #24
67 ; V6M-NEXT: pop {r7, pc}
68 ; V6M-NEXT: .LBB0_2: @ %entry
69 ; V6M-NEXT: bl __stack_chk_fail
70 ;
71 ; V8MBASE-LABEL: main:
72 ; V8MBASE: @ %bb.0: @ %entry
73 ; V8MBASE-NEXT: push {r7, lr}
74 ; V8MBASE-NEXT: sub sp, #24
75 ; V8MBASE-NEXT: movs r0, #0
76 ; V8MBASE-NEXT: str r0, [sp, #4]
77 ; V8MBASE-NEXT: movw r0, :lower16:__stack_chk_guard
78 ; V8MBASE-NEXT: movt r0, :upper16:__stack_chk_guard
79 ; V8MBASE-NEXT: ldr r0, [r0]
80 ; V8MBASE-NEXT: str r0, [sp, #20]
81 ; V8MBASE-NEXT: add r0, sp, #8
82 ; V8MBASE-NEXT: ldrb r0, [r0]
83 ; V8MBASE-NEXT: ldr r1, [sp, #20]
84 ; V8MBASE-NEXT: movw r2, :lower16:__stack_chk_guard
85 ; V8MBASE-NEXT: movt r2, :upper16:__stack_chk_guard
86 ; V8MBASE-NEXT: ldr r2, [r2]
87 ; V8MBASE-NEXT: cmp r2, r1
88 ; V8MBASE-NEXT: bne .LBB0_2
89 ; V8MBASE-NEXT: @ %bb.1: @ %entry
90 ; V8MBASE-NEXT: add sp, #24
91 ; V8MBASE-NEXT: pop {r7, pc}
92 ; V8MBASE-NEXT: .LBB0_2: @ %entry
93 ; V8MBASE-NEXT: bl __stack_chk_fail
94 entry:
95 %retval = alloca i32, align 4
96 %buffer = alloca [9 x i8], align 1
97 store i32 0, ptr %retval, align 4
98 %arrayidx = getelementptr inbounds [9 x i8], ptr %buffer, i32 0, i32 0
99 %0 = load i8, ptr %arrayidx, align 1
100 %conv = zext i8 %0 to i32
101 ret i32 %conv
102 }
104 @aa = hidden local_unnamed_addr global i32 0, align 4
105 @bb = hidden local_unnamed_addr global i64 0, align 8
107 define dso_local i64 @cc() local_unnamed_addr #1 {
108 ; CHECK-LABEL: cc:
109 ; CHECK: @ %bb.0: @ %entry
110 ; CHECK-NEXT: push {r4, r5, r7, lr}
111 ; CHECK-NEXT: sub sp, #8
112 ; CHECK-NEXT: movs r0, #1
113 ; CHECK-NEXT: lsls r3, r0, #31
114 ; CHECK-NEXT: ldr r0, .LCPI1_0
115 ; CHECK-NEXT: ldr r2, [r0]
116 ; CHECK-NEXT: asrs r4, r2, #31
117 ; CHECK-NEXT: eors r3, r4
118 ; CHECK-NEXT: ldr r0, .LCPI1_1
119 ; CHECK-NEXT: ldm r0!, {r1, r5}
120 ; CHECK-NEXT: subs r0, r2, r1
121 ; CHECK-NEXT: sbcs r3, r5
122 ; CHECK-NEXT: subs r0, r2, r1
123 ; CHECK-NEXT: ldr r1, .LCPI1_2
124 ; CHECK-NEXT: ldr r1, [r1]
125 ; CHECK-NEXT: str r1, [sp, #4]
126 ; CHECK-NEXT: mov r1, r4
127 ; CHECK-NEXT: sbcs r1, r5
128 ; CHECK-NEXT: ands r3, r4
129 ; CHECK-NEXT: ands r2, r0
130 ; CHECK-NEXT: mov r4, r2
131 ; CHECK-NEXT: orrs r4, r3
132 ; CHECK-NEXT: cmp r4, #0
133 ; CHECK-NEXT: beq .LBB1_2
134 ; CHECK-NEXT: @ %bb.1: @ %entry
135 ; CHECK-NEXT: mov r1, r3
136 ; CHECK-NEXT: .LBB1_2: @ %entry
137 ; CHECK-NEXT: beq .LBB1_4
138 ; CHECK-NEXT: @ %bb.3: @ %entry
139 ; CHECK-NEXT: mov r0, r2
140 ; CHECK-NEXT: .LBB1_4: @ %entry
141 ; CHECK-NEXT: ldr r2, [sp, #4]
142 ; CHECK-NEXT: ldr r3, .LCPI1_2
143 ; CHECK-NEXT: ldr r3, [r3]
144 ; CHECK-NEXT: cmp r3, r2
145 ; CHECK-NEXT: bne .LBB1_6
146 ; CHECK-NEXT: @ %bb.5: @ %entry
147 ; CHECK-NEXT: add sp, #8
148 ; CHECK-NEXT: pop {r4, r5, r7, pc}
149 ; CHECK-NEXT: .LBB1_6: @ %entry
150 ; CHECK-NEXT: bl __stack_chk_fail
151 ; CHECK-NEXT: .p2align 2
152 ; CHECK-NEXT: @ %bb.7:
153 ; CHECK-NEXT: .LCPI1_0:
154 ; CHECK-NEXT: .long aa
155 ; CHECK-NEXT: .LCPI1_1:
156 ; CHECK-NEXT: .long bb
157 ; CHECK-NEXT: .LCPI1_2:
158 ; CHECK-NEXT: .long __stack_chk_guard
159 ;
160 ; V6M-LABEL: cc:
161 ; V6M: @ %bb.0: @ %entry
162 ; V6M-NEXT: push {r4, r5, r7, lr}
163 ; V6M-NEXT: sub sp, #8
164 ; V6M-NEXT: movs r0, #1
165 ; V6M-NEXT: lsls r3, r0, #31
166 ; V6M-NEXT: movs r0, :upper8_15:aa
167 ; V6M-NEXT: lsls r0, r0, #8
168 ; V6M-NEXT: adds r0, :upper0_7:aa
169 ; V6M-NEXT: lsls r0, r0, #8
170 ; V6M-NEXT: adds r0, :lower8_15:aa
171 ; V6M-NEXT: lsls r0, r0, #8
172 ; V6M-NEXT: adds r0, :lower0_7:aa
173 ; V6M-NEXT: ldr r2, [r0]
174 ; V6M-NEXT: asrs r4, r2, #31
175 ; V6M-NEXT: eors r3, r4
176 ; V6M-NEXT: movs r0, :upper8_15:bb
177 ; V6M-NEXT: lsls r0, r0, #8
178 ; V6M-NEXT: adds r0, :upper0_7:bb
179 ; V6M-NEXT: lsls r0, r0, #8
180 ; V6M-NEXT: adds r0, :lower8_15:bb
181 ; V6M-NEXT: lsls r0, r0, #8
182 ; V6M-NEXT: adds r0, :lower0_7:bb
183 ; V6M-NEXT: ldm r0!, {r1, r5}
184 ; V6M-NEXT: subs r0, r2, r1
185 ; V6M-NEXT: sbcs r3, r5
186 ; V6M-NEXT: subs r0, r2, r1
187 ; V6M-NEXT: mrs r12, apsr
188 ; V6M-NEXT: movs r1, :upper8_15:__stack_chk_guard
189 ; V6M-NEXT: lsls r1, r1, #8
190 ; V6M-NEXT: adds r1, :upper0_7:__stack_chk_guard
191 ; V6M-NEXT: lsls r1, r1, #8
192 ; V6M-NEXT: adds r1, :lower8_15:__stack_chk_guard
193 ; V6M-NEXT: lsls r1, r1, #8
194 ; V6M-NEXT: adds r1, :lower0_7:__stack_chk_guard
195 ; V6M-NEXT: msr apsr, r12
196 ; V6M-NEXT: ldr r1, [r1]
197 ; V6M-NEXT: str r1, [sp, #4]
198 ; V6M-NEXT: mov r1, r4
199 ; V6M-NEXT: sbcs r1, r5
200 ; V6M-NEXT: ands r3, r4
201 ; V6M-NEXT: ands r2, r0
202 ; V6M-NEXT: mov r4, r2
203 ; V6M-NEXT: orrs r4, r3
204 ; V6M-NEXT: cmp r4, #0
205 ; V6M-NEXT: beq .LBB1_2
206 ; V6M-NEXT: @ %bb.1: @ %entry
207 ; V6M-NEXT: mov r1, r3
208 ; V6M-NEXT: .LBB1_2: @ %entry
209 ; V6M-NEXT: beq .LBB1_4
210 ; V6M-NEXT: @ %bb.3: @ %entry
211 ; V6M-NEXT: mov r0, r2
212 ; V6M-NEXT: .LBB1_4: @ %entry
213 ; V6M-NEXT: ldr r2, [sp, #4]
214 ; V6M-NEXT: mrs r12, apsr
215 ; V6M-NEXT: movs r3, :upper8_15:__stack_chk_guard
216 ; V6M-NEXT: lsls r3, r3, #8
217 ; V6M-NEXT: adds r3, :upper0_7:__stack_chk_guard
218 ; V6M-NEXT: lsls r3, r3, #8
219 ; V6M-NEXT: adds r3, :lower8_15:__stack_chk_guard
220 ; V6M-NEXT: lsls r3, r3, #8
221 ; V6M-NEXT: adds r3, :lower0_7:__stack_chk_guard
222 ; V6M-NEXT: msr apsr, r12
223 ; V6M-NEXT: ldr r3, [r3]
224 ; V6M-NEXT: cmp r3, r2
225 ; V6M-NEXT: bne .LBB1_6
226 ; V6M-NEXT: @ %bb.5: @ %entry
227 ; V6M-NEXT: add sp, #8
228 ; V6M-NEXT: pop {r4, r5, r7, pc}
229 ; V6M-NEXT: .LBB1_6: @ %entry
230 ; V6M-NEXT: bl __stack_chk_fail
231 ;
232 ; V8MBASE-LABEL: cc:
233 ; V8MBASE: @ %bb.0: @ %entry
234 ; V8MBASE-NEXT: push {r4, r5, r7, lr}
235 ; V8MBASE-NEXT: sub sp, #8
236 ; V8MBASE-NEXT: movs r0, #1
237 ; V8MBASE-NEXT: lsls r3, r0, #31
238 ; V8MBASE-NEXT: movw r0, :lower16:aa
239 ; V8MBASE-NEXT: movt r0, :upper16:aa
240 ; V8MBASE-NEXT: ldr r2, [r0]
241 ; V8MBASE-NEXT: asrs r4, r2, #31
242 ; V8MBASE-NEXT: eors r3, r4
243 ; V8MBASE-NEXT: movw r0, :lower16:bb
244 ; V8MBASE-NEXT: movt r0, :upper16:bb
245 ; V8MBASE-NEXT: ldm r0!, {r1, r5}
246 ; V8MBASE-NEXT: subs r0, r2, r1
247 ; V8MBASE-NEXT: sbcs r3, r5
248 ; V8MBASE-NEXT: subs r0, r2, r1
249 ; V8MBASE-NEXT: movw r1, :lower16:__stack_chk_guard
250 ; V8MBASE-NEXT: movt r1, :upper16:__stack_chk_guard
251 ; V8MBASE-NEXT: ldr r1, [r1]
252 ; V8MBASE-NEXT: str r1, [sp, #4]
253 ; V8MBASE-NEXT: mov r1, r4
254 ; V8MBASE-NEXT: sbcs r1, r5
255 ; V8MBASE-NEXT: ands r3, r4
256 ; V8MBASE-NEXT: ands r2, r0
257 ; V8MBASE-NEXT: mov r4, r2
258 ; V8MBASE-NEXT: orrs r4, r3
259 ; V8MBASE-NEXT: cmp r4, #0
260 ; V8MBASE-NEXT: beq .LBB1_2
261 ; V8MBASE-NEXT: @ %bb.1: @ %entry
262 ; V8MBASE-NEXT: mov r1, r3
263 ; V8MBASE-NEXT: .LBB1_2: @ %entry
264 ; V8MBASE-NEXT: beq .LBB1_4
265 ; V8MBASE-NEXT: @ %bb.3: @ %entry
266 ; V8MBASE-NEXT: mov r0, r2
267 ; V8MBASE-NEXT: .LBB1_4: @ %entry
268 ; V8MBASE-NEXT: ldr r2, [sp, #4]
269 ; V8MBASE-NEXT: movw r3, :lower16:__stack_chk_guard
270 ; V8MBASE-NEXT: movt r3, :upper16:__stack_chk_guard
271 ; V8MBASE-NEXT: ldr r3, [r3]
272 ; V8MBASE-NEXT: cmp r3, r2
273 ; V8MBASE-NEXT: bne .LBB1_6
274 ; V8MBASE-NEXT: @ %bb.5: @ %entry
275 ; V8MBASE-NEXT: add sp, #8
276 ; V8MBASE-NEXT: pop {r4, r5, r7, pc}
277 ; V8MBASE-NEXT: .LBB1_6: @ %entry
278 ; V8MBASE-NEXT: bl __stack_chk_fail
280 entry:
281 %0 = load i32, ptr @aa, align 4
282 %conv = sext i32 %0 to i64
283 %xor = xor i64 %conv, -9223372036854775808
284 %1 = load i64, ptr @bb, align 8
285 %sub = sub nsw i64 %xor, %1
286 %and = and i64 %sub, %conv
287 %tobool.not = icmp eq i64 %and, 0
288 %sub3 = sub nsw i64 %conv, %1
289 %spec.select = select i1 %tobool.not, i64 %sub3, i64 %and
290 ret i64 %spec.select
291 }
293 attributes #0 = { ssp "stack-protector-buffer-size"="8" }
294 attributes #1 = { sspreq }