1 // REQUIRES: x86-registered-target
2 // RUN: %clang_cc1 %s -triple i386-apple-darwin10 -fasm-blocks -emit-llvm -o - | FileCheck %s
3 
4 void t1() {
5 // CHECK: @t1
6 // CHECK: call void asm sideeffect inteldialect "", "~{dirflag},~{fpsr},~{flags}"()
7 // CHECK: ret void
8   __asm {}
9 }
10 
11 void t2() {
12 // CHECK: @t2
13 // CHECK: call void asm sideeffect inteldialect "nop\0A\09nop\0A\09nop", "~{dirflag},~{fpsr},~{flags}"()
14 // CHECK: ret void
15   __asm nop
16   __asm nop
17   __asm nop
18 }
19 
20 void t3() {
21 // CHECK: @t3
22 // CHECK: call void asm sideeffect inteldialect "nop\0A\09nop\0A\09nop", "~{dirflag},~{fpsr},~{flags}"()
23 // CHECK: ret void
24   __asm nop __asm nop __asm nop
25 }
26 
27 void t4(void) {
28 // CHECK: @t4
29 // CHECK: call void asm sideeffect inteldialect "mov ebx, eax\0A\09mov ecx, ebx", "~{ebx},~{ecx},~{dirflag},~{fpsr},~{flags}"()
30 // CHECK: ret void
31   __asm mov ebx, eax
32   __asm mov ecx, ebx
33 }
34 
35 void t5(void) {
36 // CHECK: @t5
37 // CHECK: call void asm sideeffect inteldialect "mov ebx, eax\0A\09mov ecx, ebx", "~{ebx},~{ecx},~{dirflag},~{fpsr},~{flags}"()
38 // CHECK: ret void
39   __asm mov ebx, eax __asm mov ecx, ebx
40 }
41 
42 void t6(void) {
43   __asm int 0x2c
44 // CHECK: t6
45 // CHECK: call void asm sideeffect inteldialect "int $$44", "~{dirflag},~{fpsr},~{flags}"()
46 }
47 
48 void t7() {
49   __asm {
50     int 0x2cU ; } asm comments are fun! }{
51   }
52   __asm {
53     {
54       int 0x2c ; } asm comments are fun! }{
55     }
56   }
57   __asm {}
58   __asm {
59     ;
60     ; label
61     mov eax, ebx
62   }
63 // CHECK: t7
64 // CHECK: call void asm sideeffect inteldialect "int $$44", "~{dirflag},~{fpsr},~{flags}"()
65 // CHECK: call void asm sideeffect inteldialect "", "~{dirflag},~{fpsr},~{flags}"()
66 // CHECK: call void asm sideeffect inteldialect "mov eax, ebx", "~{eax},~{dirflag},~{fpsr},~{flags}"()
67 }
68 
69 int t8() {
70   __asm int 4 ; } comments for single-line asm
71   __asm {}
72   __asm { int 5}
73   __asm int 6
74   __asm int 7
75   __asm {
76     int 8
77   }
78   return 10;
79 // CHECK: t8
80 // CHECK: call i32 asm sideeffect inteldialect "int $$4", "={eax},~{dirflag},~{fpsr},~{flags}"()
81 // CHECK: call i32 asm sideeffect inteldialect "", "={eax},~{dirflag},~{fpsr},~{flags}"()
82 // CHECK: call i32 asm sideeffect inteldialect "int $$5", "={eax},~{dirflag},~{fpsr},~{flags}"()
83 // CHECK: call i32 asm sideeffect inteldialect "int $$6\0A\09int $$7", "={eax},~{dirflag},~{fpsr},~{flags}"()
84 // CHECK: call i32 asm sideeffect inteldialect "int $$8", "={eax},~{dirflag},~{fpsr},~{flags}"()
85 // CHECK: ret i32 10
86 }
87 
88 void t9() {
89   __asm {
90     push ebx
91     { mov ebx, 0x07 }
92     __asm { pop ebx }
93   }
94 // CHECK: t9
95 // CHECK: call void asm sideeffect inteldialect
96 // CHECK-SAME: push ebx
97 // CHECK-SAME: mov ebx, $$7
98 // CHECK-SAME: pop ebx
99 // CHECK-SAME: "~{ebx},~{esp},~{dirflag},~{fpsr},~{flags}"()
100 }
101 
102 unsigned t10(void) {
103   unsigned i = 1, j;
104   __asm {
105     mov eax, i
106     mov j, eax
107   }
108   return j;
109 // CHECK: t10
110 // CHECK: [[r:%[a-zA-Z0-9]+]] = alloca i32, align 4
111 // CHECK: [[I:%[a-zA-Z0-9]+]] = alloca i32, align 4
112 // CHECK: [[J:%[a-zA-Z0-9]+]] = alloca i32, align 4
113 // CHECK: store i32 1, i32* [[I]], align 4
114 // CHECK: call i32 asm sideeffect inteldialect
115 // CHECK-SAME: mov eax, $2
116 // CHECK-SAME: mov $0, eax
117 // CHECK-SAME: "=*m,=&{eax},*m,~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}}, i32* elementtype(i32) %{{.*}})
118 // CHECK: [[RET:%[a-zA-Z0-9]+]] = load i32, i32* [[J]], align 4
119 // CHECK: ret i32 [[RET]]
120 }
121 
122 void t11(void) {
123   __asm mov eax, 1
124 // CHECK: t11
125 // CHECK: call void asm sideeffect inteldialect "mov eax, $$1", "~{eax},~{dirflag},~{fpsr},~{flags}"()
126 }
127 
128 unsigned t12(void) {
129   unsigned i = 1, j, l = 1, m;
130   __asm {
131     mov eax, i
132     mov j, eax
133     mov eax, l
134     mov m, eax
135   }
136   return j + m;
137 // CHECK: t12
138 // CHECK: call i32 asm sideeffect inteldialect
139 // CHECK-SAME: mov eax, $3
140 // CHECK-SAME: mov $0, eax
141 // CHECK-SAME: mov eax, $4
142 // CHECK-SAME: mov $1, eax
143 // CHECK-SAME: "=*m,=*m,=&{eax},*m,*m,~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}}, i32* elementtype(i32) %{{.*}}, i32* elementtype(i32) %{{.*}}, i32* elementtype(i32) %{{.*}})
144 }
145 
146 void t13() {
147   char i = 1;
148   short j = 2;
149   __asm movzx eax, i
150   __asm movzx eax, j
151 // CHECK-LABEL: define{{.*}} void @t13()
152 // CHECK: call void asm sideeffect inteldialect
153 // CHECK-SAME: movzx eax, byte ptr $0
154 // CHECK-SAME: movzx eax, word ptr $1
155 // CHECK-SAME: "*m,*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i8* elementtype(i8) %{{.*}}i, i16* elementtype(i16) %{{.*}}j)
156 }
157 
158 void t13_brac() {
159   char i = 1;
160   short j = 2;
161   __asm movzx eax, [i]
162   __asm movzx eax, [j]
163 // CHECK-LABEL: define{{.*}} void @t13_brac()
164 // CHECK: call void asm sideeffect inteldialect
165 // CHECK-SAME: movzx eax, byte ptr $0
166 // CHECK-SAME: movzx eax, word ptr $1
167 // CHECK-SAME: "*m,*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i8* elementtype(i8) %{{.*}}i, i16* elementtype(i16) %{{.*}}j)
168 }
169 
170 void t14() {
171   unsigned i = 1, j = 2;
172   __asm {
173     .if 1
174     { mov eax, i }
175     .else
176     mov ebx, j
177     .endif
178   }
179 // CHECK: t14
180 // CHECK: call void asm sideeffect inteldialect ".if 1\0A\09mov eax, $0\0A\09.else\0A\09mov ebx, j\0A\09.endif", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
181 }
182 
183 int gvar = 10;
184 void t15() {
185 // CHECK: t15
186   int lvar = 10;
187   __asm mov eax, lvar        ; eax = 10
188 // CHECK: mov eax, $0
189   __asm mov eax, offset lvar ; eax = address of lvar
190 // CHECK: mov eax, $1
191   __asm mov eax, offset gvar ; eax = address of gvar
192 // CHECK: mov eax, $2
193   __asm mov eax, offset gvar+1 ; eax = 1 + address of gvar
194 // CHECK: mov eax, $3 + $$1
195   __asm mov eax, 1+offset gvar ; eax = 1 + address of gvar
196 // CHECK: mov eax, $4 + $$1
197   __asm mov eax, 1+offset gvar+1 ; eax = 2 + address of gvar
198 // CHECK: mov eax, $5 + $$2
199 // CHECK: "*m,r,i,i,i,i,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}}, i32* %{{.*}}, i32* @{{.*}}, i32* @{{.*}}, i32* @{{.*}}, i32* @{{.*}})
200 }
201 
202 void t16() {
203   int var = 10;
204   __asm mov dword ptr [eax], offset var
205 // CHECK: t16
206 // CHECK: call void asm sideeffect inteldialect "mov dword ptr [eax], $0", "r,~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
207 }
208 
209 void t17() {
210 // CHECK: t17
211   __asm _emit 0x4A
212 // CHECK: .byte 0x4A
213   __asm _emit 0x43L
214 // CHECK: .byte 0x43L
215   __asm _emit 0x4B
216 // CHECK: .byte 0x4B
217   __asm _EMIT 0x4B
218 // CHECK: .byte 0x4B
219 // CHECK:  "~{dirflag},~{fpsr},~{flags}"()
220 }
221 
222 void t20() {
223 // CHECK: t20
224   char bar;
225   int foo;
226   char _bar[2];
227   int _foo[4];
228 
229   __asm mov eax, LENGTH foo
230 // CHECK: mov eax, $$1
231   __asm mov eax, LENGTH bar
232 // CHECK: mov eax, $$1
233   __asm mov eax, LENGTH _foo
234 // CHECK: mov eax, $$4
235   __asm mov eax, LENGTH _bar
236 // CHECK: mov eax, $$2
237   __asm mov eax, [eax + LENGTH foo * 4]
238 // CHECK: mov eax, [eax + $$4]
239 
240   __asm mov eax, TYPE foo
241 // CHECK: mov eax, $$4
242   __asm mov eax, TYPE bar
243 // CHECK: mov eax, $$1
244   __asm mov eax, TYPE _foo
245 // CHECK: mov eax, $$4
246   __asm mov eax, TYPE _bar
247 // CHECK: mov eax, $$1
248   __asm mov eax, [eax + TYPE foo * 4]
249 // CHECK: mov eax, [eax + $$16]
250 
251   __asm mov eax, SIZE foo
252 // CHECK: mov eax, $$4
253   __asm mov eax, SIZE bar
254 // CHECK: mov eax, $$1
255   __asm mov eax, SIZE _foo
256 // CHECK: mov eax, $$16
257   __asm mov eax, [eax + SIZE _foo * 4]
258 // CHECK: mov eax, [eax + $$64]
259   __asm mov eax, SIZE _bar
260 // CHECK: mov eax, $$2
261 // CHECK: "~{eax},~{dirflag},~{fpsr},~{flags}"()
262 
263 }
264 
265 void t21() {
266   __asm {
267     __asm push ebx
268     __asm mov ebx, 07H
269     __asm pop ebx
270   }
271 // CHECK: t21
272 // CHECK: call void asm sideeffect inteldialect
273 // CHECK-SAME: push ebx
274 // CHECK-SAME: mov ebx, $$7
275 // CHECK-SAME: pop ebx
276 // CHECK-SAME: "~{ebx},~{esp},~{dirflag},~{fpsr},~{flags}"()
277 }
278 
279 extern void t22_helper(int x);
280 void t22() {
281   int x = 0;
282   __asm {
283     __asm push ebx
284     __asm mov ebx, esp
285   }
286   t22_helper(x);
287   __asm {
288     __asm mov esp, ebx
289     __asm pop ebx
290   }
291 // CHECK: t22
292 // CHECK: call void asm sideeffect inteldialect
293 // CHECK-SAME: push ebx
294 // CHECK-SAME: mov ebx, esp
295 // CHECK-SAME: "~{ebx},~{esp},~{dirflag},~{fpsr},~{flags}"()
296 // CHECK: call void @t22_helper
297 // CHECK: call void asm sideeffect inteldialect
298 // CHECK-SAME: mov esp, ebx
299 // CHECK-SAME: pop ebx
300 // CHECK-SAME: "~{ebx},~{esp},~{dirflag},~{fpsr},~{flags}"()
301 }
302 
303 void t23() {
304   __asm {
305   the_label:
306   }
307 // CHECK: t23
308 // CHECK: call void asm sideeffect inteldialect "{{.*}}__MSASMLABEL_.${:uid}__the_label:", "~{dirflag},~{fpsr},~{flags}"()
309 }
310 
311 void t24_helper(void) {}
312 void t24() {
313   __asm call t24_helper
314 // CHECK: t24
315 // CHECK: call void asm sideeffect inteldialect "call dword ptr ${0:P}", "*m,~{dirflag},~{fpsr},~{flags}"(void ()* elementtype(void ()) @t24_helper)
316 }
317 
318 void t25() {
319 // CHECK: t25
320   __asm mov eax, 0ffffffffh
321 // CHECK: mov eax, $$4294967295
322   __asm mov eax, 0fhU
323 // CHECK: mov eax, $$15
324   __asm mov eax, 0a2h
325 // CHECK: mov eax, $$162
326   __asm mov eax, 10100010b
327 // CHECK: mov eax, $$162
328   __asm mov eax, 10100010BU
329 // CHECK: mov eax, $$162
330 // CHECK: "~{eax},~{dirflag},~{fpsr},~{flags}"()
331 }
332 
333 void t26() {
334 // CHECK: t26
335   __asm pushad
336 // CHECK: pushad
337   __asm mov eax, 0
338 // CHECK: mov eax, $$0
339   __asm __emit 0fh
340 // CHECK: .byte 0fh
341   __asm __emit 0a2h
342 // CHECK: .byte 0a2h
343   __asm __EMIT 0a2h
344 // CHECK: .byte 0a2h
345   __asm popad
346 // CHECK: popad
347 // CHECK: "~{eax},~{ebp},~{ebx},~{ecx},~{edi},~{edx},~{esi},~{esp},~{dirflag},~{fpsr},~{flags}"()
348 }
349 
350 void t27() {
351   __asm mov eax, fs:[0h]
352 // CHECK: t27
353 // CHECK: call void asm sideeffect inteldialect "mov eax, fs:[$$0]", "~{eax},~{dirflag},~{fpsr},~{flags}"()
354 }
355 
356 void t28() {
357 // CHECK: t28
358   __asm align 8
359 // CHECK: .align 3
360   __asm align 16;
361 // CHECK: .align 4
362   __asm align 128;
363 // CHECK: .align 7
364   __asm ALIGN 256;
365 // CHECK: .align 8
366 // CHECK: "~{dirflag},~{fpsr},~{flags}"()
367 }
368 
369 void t29() {
370 // CHECK: t29
371   int arr[2] = {0, 0};
372   int olen = 0, osize = 0, otype = 0;
373   __asm mov olen, LENGTH arr
374 // CHECK: mov dword ptr $0, $$2
375   __asm mov osize, SIZE arr
376 // CHECK: mov dword ptr $1, $$8
377   __asm mov otype, TYPE arr
378 // CHECK: mov dword ptr $2, $$4
379 // CHECK: "=*m,=*m,=*m,~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}}, i32* elementtype(i32) %{{.*}}, i32* elementtype(i32) %{{.*}})
380 }
381 
382 int results[2] = {13, 37};
383 int *t30()
384 // CHECK: t30
385 {
386   int *res;
387   __asm lea edi, results
388 // CHECK: lea edi, $2
389   __asm mov res, edi
390 // CHECK: mov $0, edi
391   return res;
392 // CHECK: "=*m,={eax},*m,~{edi},~{dirflag},~{fpsr},~{flags}"(i32** elementtype(i32*) %{{.*}}, [2 x i32]* elementtype([2 x i32]) @{{.*}})
393 }
394 
395 void t31() {
396 // CHECK: t31
397   __asm pushad
398 // CHECK: pushad
399   __asm popad
400 // CHECK: popad
401 // CHECK: "~{eax},~{ebp},~{ebx},~{ecx},~{edi},~{edx},~{esi},~{esp},~{dirflag},~{fpsr},~{flags}"()
402 }
403 
404 void t32() {
405 // CHECK: t32
406   int i;
407   __asm mov eax, i
408 // CHECK: mov eax, $0
409   __asm mov eax, dword ptr i
410 // CHECK: mov eax, dword ptr $1
411   __asm mov ax, word ptr i
412 // CHECK: mov ax, word ptr $2
413   __asm mov al, byte ptr i
414 // CHECK: mov al, byte ptr $3
415 // CHECK: "*m,*m,*m,*m,~{al},~{ax},~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}}, i32* elementtype(i32) %{{.*}}, i32* elementtype(i32) %{{.*}}, i32* elementtype(i32) %{{.*}})
416 }
417 
418 void t33() {
419 // CHECK: t33
420   int i;
421   __asm mov eax, [i]
422 // CHECK: mov eax, $0
423   __asm mov eax, dword ptr [i]
424 // CHECK: mov eax, dword ptr $1
425   __asm mov ax, word ptr [i]
426 // CHECK: mov ax, word ptr $2
427   __asm mov al, byte ptr [i]
428 // CHECK: mov al, byte ptr $3
429 // CHECK: "*m,*m,*m,*m,~{al},~{ax},~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}}, i32* elementtype(i32) %{{.*}}, i32* elementtype(i32) %{{.*}}, i32* elementtype(i32) %{{.*}})
430 }
431 
432 void t34() {
433 // CHECK: t34
434   __asm prefetchnta 64[eax]
435 // CHECK: prefetchnta [eax + $$64]
436   __asm mov eax, dword ptr 4[eax]
437 // CHECK: mov eax, dword ptr [eax + $$4]
438 // CHECK: "~{eax},~{dirflag},~{fpsr},~{flags}"()
439 }
440 
441 void t35() {
442 // CHECK: t35
443   __asm prefetchnta [eax + (200*64)]
444 // CHECK: prefetchnta [eax + $$12800]
445   __asm mov eax, dword ptr [eax + (200*64)]
446 // CHECK: mov eax, dword ptr [eax + $$12800]
447 // CHECK: "~{eax},~{dirflag},~{fpsr},~{flags}"()
448 }
449 
450 void t36() {
451 // CHECK: t36
452   int arr[4];
453   // Work around PR20368: These should be single line blocks
454   __asm { mov eax, 4[arr] }
455 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
456   __asm { mov eax, 4[arr + 4] }
457 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$8]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
458   __asm { mov eax, 8[arr + 4 + 32*2 - 4] }
459 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$72]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
460   __asm { mov eax, 12[4 + arr] }
461 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$16]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
462   __asm { mov eax, 4[4 + arr + 4] }
463 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$12]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
464   __asm { mov eax, 4[64 + arr + (2*32)] }
465 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$132]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
466   __asm { mov eax, 4[64 + arr - 2*32] }
467 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
468   __asm { mov eax, [arr + 4] }
469 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
470   __asm { mov eax, [arr + 4 + 32*2 - 4] }
471 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$64]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
472   __asm { mov eax, [4 + arr] }
473 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
474   __asm { mov eax, [4 + arr + 4] }
475 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$8]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
476   __asm { mov eax, [64 + arr + (2*32)] }
477 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$128]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
478   __asm { mov eax, [64 + arr - 2*32] }
479 // CHECK: call void asm sideeffect inteldialect "mov eax, $0", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
480 }
481 
482 void t37() {
483 // CHECK: t37
484   __asm mov eax, 4 + 8
485 // CHECK: mov eax, $$12
486   __asm mov eax, 4 + 8 * 16
487 // CHECK: mov eax, $$132
488   __asm mov eax, -4 + 8 * 16
489 // CHECK: mov eax, $$124
490   __asm mov eax, (4 + 4) * 16
491 // CHECK: mov eax, $$128
492   __asm mov eax, 4 + 8 * -16
493 // CHECK: mov eax, $$-124
494   __asm mov eax, 4 + 16 / -8
495 // CHECK: mov eax, $$2
496   __asm mov eax, (16 + 16) / -8
497 // CHECK: mov eax, $$-4
498   __asm mov eax, ~15
499 // CHECK: mov eax, $$-16
500   __asm mov eax, 6 ^ 3
501 // CHECK: mov eax, $$5
502 // CHECK: "~{eax},~{dirflag},~{fpsr},~{flags}"()
503 }
504 
505 void t38() {
506 // CHECK: t38
507   int arr[4];
508   // Work around PR20368: These should be single line blocks
509   __asm { mov eax, 4+4[arr] }
510 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$8]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
511   __asm { mov eax, (4+4)[arr + 4] }
512 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$12]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
513   __asm { mov eax, 8*2[arr + 4 + 32*2 - 4] }
514 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$80]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
515   __asm { mov eax, 12+20[4 + arr] }
516 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$36]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
517   __asm { mov eax, 4*16+4[4 + arr + 4] }
518 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$76]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
519   __asm { mov eax, 4*4[64 + arr + (2*32)] }
520 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$144]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
521   __asm { mov eax, 4*(4-2)[64 + arr - 2*32] }
522 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$8]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
523   __asm { mov eax, 32*(4-2)[arr - 2*32] }
524 // CHECK: call void asm sideeffect inteldialect "mov eax, $0", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* elementtype([4 x i32]) %{{.*}})
525 }
526 
527 void cpuid() {
528   __asm cpuid
529 // CHECK-LABEL: define{{.*}} void @cpuid
530 // CHECK: call void asm sideeffect inteldialect "cpuid", "~{eax},~{ebx},~{ecx},~{edx},~{dirflag},~{fpsr},~{flags}"()
531 }
532 
533 typedef struct {
534   int a;
535   int b;
536 } A, *pA;
537 
538 typedef struct {
539   int b1;
540   A   b2;
541 } B;
542 
543 typedef struct {
544   int c1;
545   A   c2;
546   int c3;
547   B   c4;
548 } C, *pC;
549 
550 void t39() {
551 // CHECK-LABEL: define{{.*}} void @t39
552   __asm mov eax, [eax].A.b
553 // CHECK: mov eax, [eax + $$4]
554   __asm mov eax, [eax] A.b
555 // CHECK: mov eax, [eax + $$4]
556   __asm mov eax, [eax] pA.b
557 // CHECK: mov eax, [eax + $$4]
558   __asm mov eax, fs:[0] A.b
559 // CHECK: mov eax, fs:[$$4]
560   __asm mov eax, [eax].B.b2.a
561 // CHECK: mov eax, [eax + $$4]
562   __asm mov eax, [eax] B.b2.b
563 // CHECK: mov eax, [eax + $$8]
564   __asm mov eax, fs:[0] C.c2.b
565 // CHECK: mov eax, fs:[$$8]
566   __asm mov eax, [eax]C.c4.b2.b
567 // CHECK: mov eax, [eax + $$24]
568   __asm mov eax, [eax]pC.c4.b2.b
569 // CHECK: mov eax, [eax + $$24]
570 // CHECK: "~{eax},~{dirflag},~{fpsr},~{flags}"()
571 }
572 
573 void t40(float a) {
574 // CHECK-LABEL: define{{.*}} void @t40
575   int i;
576   __asm fld a
577 // CHECK: fld dword ptr $1
578   __asm fistp i
579 // CHECK: fistp dword ptr $0
580 // CHECK: "=*m,*m,~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}}, float* elementtype(float) %{{.*}})
581 }
582 
583 void t41(unsigned short a) {
584 // CHECK-LABEL: define{{.*}} void @t41(i16 noundef zeroext %a)
585   __asm mov cs, a;
586 // CHECK: mov cs, $0
587   __asm mov ds, a;
588 // CHECK: mov ds, $1
589   __asm mov es, a;
590 // CHECK: mov es, $2
591   __asm mov fs, a;
592 // CHECK: mov fs, $3
593   __asm mov gs, a;
594 // CHECK: mov gs, $4
595   __asm mov ss, a;
596 // CHECK: mov ss, $5
597 // CHECK: "*m,*m,*m,*m,*m,*m,~{dirflag},~{fpsr},~{flags}"(i16* {{.*}}, i16* {{.*}}, i16* {{.*}}, i16* {{.*}}, i16* {{.*}}, i16* {{.*}})
598 }
599 
600 void t42() {
601 // CHECK-LABEL: define{{.*}} void @t42(
602   int flags;
603   __asm mov flags, eax
604 // CHECK: mov $0, eax
605 // CHECK: "=*m,~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %flags)
606 }
607 
608 void t42b() {
609 // CHECK-LABEL: define{{.*}} void @t42b(
610   int mxcsr;
611   __asm mov mxcsr, eax
612 // CHECK: mov $0, eax
613 // CHECK: "=*m,~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %mxcsr)
614 }
615 
616 void t43() {
617 // CHECK-LABEL: define{{.*}} void @t43
618   C strct;
619 // Work around PR20368: These should be single line blocks
620  __asm { mov eax, 4[strct.c1] }
621 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
622   __asm { mov eax, 4[strct.c3 + 4] }
623 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$8]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
624   __asm { mov eax, 8[strct.c2.a + 4 + 32*2 - 4] }
625 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$72]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
626   __asm { mov eax, 12[4 + strct.c2.b] }
627 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$16]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
628   __asm { mov eax, 4[4 + strct.c4.b2.b + 4] }
629 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$12]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
630   __asm { mov eax, 4[64 + strct.c1 + (2*32)] }
631 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$132]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
632   __asm { mov eax, 4[64 + strct.c2.a - 2*32] }
633 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
634   __asm { mov eax, [strct.c4.b1 + 4] }
635 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
636   __asm { mov eax, [strct.c4.b2.a + 4 + 32*2 - 4] }
637 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$64]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
638   __asm { mov eax, [4 + strct.c1] }
639 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
640   __asm { mov eax, [4 + strct.c2.b + 4] }
641 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$8]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
642   __asm { mov eax, [64 + strct.c3 + (2*32)] }
643 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$128]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
644   __asm { mov eax, [64 + strct.c4.b2.b - 2*32] }
645 // CHECK: call void asm sideeffect inteldialect "mov eax, $0", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) %{{.*}})
646 }
647 
648 void t44() {
649   // CHECK-LABEL: define{{.*}} void @t44
650   __asm {
651     mov cr0, eax
652     mov cr2, ebx
653     mov cr3, ecx
654     mov cr4, edx
655   }
656   // CHECK: call void asm sideeffect inteldialect "mov cr0, eax\0A\09mov cr2, ebx\0A\09mov cr3, ecx\0A\09mov cr4, edx", "~{cr0},~{cr2},~{cr3},~{cr4},~{dirflag},~{fpsr},~{flags}"()
657 }
658 
659 void t45() {
660   // CHECK-LABEL: define{{.*}} void @t45
661   __asm {
662     mov dr0, eax
663     mov dr1, ebx
664     mov dr2, ebx
665     mov dr3, ecx
666     mov dr6, edx
667     mov dr7, ecx
668   }
669   // CHECK: call void asm sideeffect inteldialect "mov dr0, eax\0A\09mov dr1, ebx\0A\09mov dr2, ebx\0A\09mov dr3, ecx\0A\09mov dr6, edx\0A\09mov dr7, ecx", "~{dr0},~{dr1},~{dr2},~{dr3},~{dr6},~{dr7},~{dirflag},~{fpsr},~{flags}"()
670 }
671 
672 void t46() {
673   // CHECK-LABEL: define{{.*}} void @t46
674   __asm add eax, -128[eax]
675   // CHECK: call void asm sideeffect inteldialect "add eax, [eax + $$-128]", "~{eax},~{flags},~{dirflag},~{fpsr},~{flags}"()
676 }
677 
678 void dot_operator(){
679   // CHECK-LABEL: define{{.*}} void @dot_operator
680 	__asm { mov eax, 3[ebx]A.b}
681   // CHECK: call void asm sideeffect inteldialect "mov eax, [ebx + $$7]", "~{eax},~{dirflag},~{fpsr},~{flags}"
682 }
683 
684 void call_clobber() {
685   __asm call t41
686   // CHECK-LABEL: define{{.*}} void @call_clobber
687   // CHECK: call void asm sideeffect inteldialect "call dword ptr ${0:P}", "*m,~{dirflag},~{fpsr},~{flags}"(void (i16)* elementtype(void (i16)) @t41)
688 }
689 
690 void xgetbv() {
691   __asm xgetbv
692 }
693 // CHECK-LABEL: define{{.*}} void @xgetbv()
694 // CHECK: call void asm sideeffect inteldialect "xgetbv", "~{eax},~{edx},~{dirflag},~{fpsr},~{flags}"()
695 
696 void label1() {
697   __asm {
698     label:
699     jmp label
700   }
701   // CHECK-LABEL: define{{.*}} void @label1()
702   // CHECK: call void asm sideeffect inteldialect "{{.*}}__MSASMLABEL_.${:uid}__label:\0A\09jmp {{.*}}__MSASMLABEL_.${:uid}__label", "~{dirflag},~{fpsr},~{flags}"() [[ATTR1:#[0-9]+]]
703 }
704 
705 void label2() {
706   __asm {
707     jmp label
708     label:
709   }
710   // CHECK-LABEL: define{{.*}} void @label2
711   // CHECK: call void asm sideeffect inteldialect "jmp {{.*}}__MSASMLABEL_.${:uid}__label\0A\09{{.*}}__MSASMLABEL_.${:uid}__label:", "~{dirflag},~{fpsr},~{flags}"()
712 }
713 
714 void label3() {
715   __asm {
716     label:
717     mov eax, label
718   }
719   // CHECK-LABEL: define{{.*}} void @label3
720   // CHECK: call void asm sideeffect inteldialect "{{.*}}__MSASMLABEL_.${:uid}__label:\0A\09mov eax, {{.*}}__MSASMLABEL_.${:uid}__label", "~{eax},~{dirflag},~{fpsr},~{flags}"()
721 }
722 
723 void label4() {
724   __asm {
725     label:
726     mov eax, [label]
727   }
728   // CHECK-LABEL: define{{.*}} void @label4
729   // CHECK: call void asm sideeffect inteldialect "{{.*}}__MSASMLABEL_.${:uid}__label:\0A\09mov eax, {{.*}}__MSASMLABEL_.${:uid}__label", "~{eax},~{dirflag},~{fpsr},~{flags}"()
730 }
731 
732 void label5() {
733   __asm {
734     jmp dollar_label$
735     dollar_label$:
736   }
737   // CHECK-LABEL: define{{.*}} void @label5
738   // CHECK: call void asm sideeffect inteldialect "jmp {{.*}}__MSASMLABEL_.${:uid}__dollar_label$$\0A\09{{.*}}__MSASMLABEL_.${:uid}__dollar_label$$:", "~{dirflag},~{fpsr},~{flags}"()
739 }
740 
741 void label6(){
742   __asm {
743       jmp short label
744       jc  short label
745       jz  short label
746     label:
747   }
748   // CHECK-LABEL: define{{.*}} void @label6
749   // CHECK: jmp {{.*}}__MSASMLABEL_.${:uid}__label\0A\09jc {{.*}}__MSASMLABEL_.${:uid}__label\0A\09jz {{.*}}__MSASMLABEL_.${:uid}__label\0A\09{{.*}}__MSASMLABEL_.${:uid}__label:"
750 }
751 
752 // Don't include mxcsr in the clobber list.
753 void mxcsr() {
754   char buf[4096];
755   __asm fxrstor buf
756 }
757 // CHECK-LABEL: define{{.*}} void @mxcsr
758 // CHECK: call void asm sideeffect inteldialect "fxrstor $0", "=*m,~{fpcr},~{dirflag},~{fpsr},~{flags}"
759 
760 // Make sure we can find the register for the dirflag for popfd
761 void dirflag() {
762   __asm popfd
763 }
764 // CHECK-LABEL: define{{.*}} void @dirflag
765 // CHECK: call void asm sideeffect inteldialect "popfd", "~{dirflag},~{flags},~{esp},~{dirflag},~{fpsr},~{flags}"
766 
767 typedef union _LARGE_INTEGER {
768   struct {
769     unsigned int LowPart;
770     unsigned int  HighPart;
771   };
772   struct {
773     unsigned int LowPart;
774     unsigned int  HighPart;
775   } u;
776   unsigned long long QuadPart;
777 } LARGE_INTEGER, *PLARGE_INTEGER;
778 
779 int test_indirect_field(LARGE_INTEGER LargeInteger) {
780     __asm mov     eax, LargeInteger.LowPart
781 }
782 // CHECK-LABEL: define{{.*}} i32 @test_indirect_field(
783 // CHECK: call i32 asm sideeffect inteldialect "mov eax, $1",
784 
785 // MS ASM containing labels must not be duplicated (PR23715).
786 // CHECK: attributes [[ATTR1]] = {
787 // CHECK-NOT: noduplicate
788 // CHECK-SAME: }{{$}}
789