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,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}}, 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,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}}, i32* %{{.*}}, i32* %{{.*}}, 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* %{{.*}}i, 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* %{{.*}}i, 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* %{{.*}})
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 // CHECK: "*m,r,r,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}}, i32* %{{.*}}, i32* @{{.*}})
194 }
195 
196 void t16() {
197   int var = 10;
198   __asm mov [eax], offset var
199 // CHECK: t16
200 // CHECK: call void asm sideeffect inteldialect "mov [eax], $0", "r,~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
201 }
202 
203 void t17() {
204 // CHECK: t17
205   __asm _emit 0x4A
206 // CHECK: .byte 0x4A
207   __asm _emit 0x43L
208 // CHECK: .byte 0x43L
209   __asm _emit 0x4B
210 // CHECK: .byte 0x4B
211   __asm _EMIT 0x4B
212 // CHECK: .byte 0x4B
213 // CHECK:  "~{dirflag},~{fpsr},~{flags}"()
214 }
215 
216 void t20() {
217 // CHECK: t20
218   char bar;
219   int foo;
220   char _bar[2];
221   int _foo[4];
222 
223   __asm mov eax, LENGTH foo
224 // CHECK: mov eax, $$1
225   __asm mov eax, LENGTH bar
226 // CHECK: mov eax, $$1
227   __asm mov eax, LENGTH _foo
228 // CHECK: mov eax, $$4
229   __asm mov eax, LENGTH _bar
230 // CHECK: mov eax, $$2
231   __asm mov eax, [eax + LENGTH foo * 4]
232 // CHECK: mov eax, [eax + $$4]
233 
234   __asm mov eax, TYPE foo
235 // CHECK: mov eax, $$4
236   __asm mov eax, TYPE bar
237 // CHECK: mov eax, $$1
238   __asm mov eax, TYPE _foo
239 // CHECK: mov eax, $$4
240   __asm mov eax, TYPE _bar
241 // CHECK: mov eax, $$1
242   __asm mov eax, [eax + TYPE foo * 4]
243 // CHECK: mov eax, [eax + $$16]
244 
245   __asm mov eax, SIZE foo
246 // CHECK: mov eax, $$4
247   __asm mov eax, SIZE bar
248 // CHECK: mov eax, $$1
249   __asm mov eax, SIZE _foo
250 // CHECK: mov eax, $$16
251   __asm mov eax, [eax + SIZE _foo * 4]
252 // CHECK: mov eax, [eax + $$64]
253   __asm mov eax, SIZE _bar
254 // CHECK: mov eax, $$2
255 // CHECK: "~{eax},~{dirflag},~{fpsr},~{flags}"()
256 
257 }
258 
259 void t21() {
260   __asm {
261     __asm push ebx
262     __asm mov ebx, 07H
263     __asm pop ebx
264   }
265 // CHECK: t21
266 // CHECK: call void asm sideeffect inteldialect
267 // CHECK-SAME: push ebx
268 // CHECK-SAME: mov ebx, $$7
269 // CHECK-SAME: pop ebx
270 // CHECK-SAME: "~{ebx},~{esp},~{dirflag},~{fpsr},~{flags}"()
271 }
272 
273 extern void t22_helper(int x);
274 void t22() {
275   int x = 0;
276   __asm {
277     __asm push ebx
278     __asm mov ebx, esp
279   }
280   t22_helper(x);
281   __asm {
282     __asm mov esp, ebx
283     __asm pop ebx
284   }
285 // CHECK: t22
286 // CHECK: call void asm sideeffect inteldialect
287 // CHECK-SAME: push ebx
288 // CHECK-SAME: mov ebx, esp
289 // CHECK-SAME: "~{ebx},~{esp},~{dirflag},~{fpsr},~{flags}"()
290 // CHECK: call void @t22_helper
291 // CHECK: call void asm sideeffect inteldialect
292 // CHECK-SAME: mov esp, ebx
293 // CHECK-SAME: pop ebx
294 // CHECK-SAME: "~{ebx},~{esp},~{dirflag},~{fpsr},~{flags}"()
295 }
296 
297 void t23() {
298   __asm {
299   the_label:
300   }
301 // CHECK: t23
302 // CHECK: call void asm sideeffect inteldialect "{{.*}}__MSASMLABEL_.${:uid}__the_label:", "~{dirflag},~{fpsr},~{flags}"()
303 }
304 
305 void t24_helper(void) {}
306 void t24() {
307   __asm call t24_helper
308 // CHECK: t24
309 // CHECK: call void asm sideeffect inteldialect "call dword ptr $0", "*m,~{dirflag},~{fpsr},~{flags}"(void ()* @t24_helper)
310 }
311 
312 void t25() {
313 // CHECK: t25
314   __asm mov eax, 0ffffffffh
315 // CHECK: mov eax, $$4294967295
316   __asm mov eax, 0fhU
317 // CHECK: mov eax, $$15
318   __asm mov eax, 0a2h
319 // CHECK: mov eax, $$162
320   __asm mov eax, 10100010b
321 // CHECK: mov eax, $$162
322   __asm mov eax, 10100010BU
323 // CHECK: mov eax, $$162
324 // CHECK: "~{eax},~{dirflag},~{fpsr},~{flags}"()
325 }
326 
327 void t26() {
328 // CHECK: t26
329   __asm pushad
330 // CHECK: pushad
331   __asm mov eax, 0
332 // CHECK: mov eax, $$0
333   __asm __emit 0fh
334 // CHECK: .byte 0fh
335   __asm __emit 0a2h
336 // CHECK: .byte 0a2h
337   __asm __EMIT 0a2h
338 // CHECK: .byte 0a2h
339   __asm popad
340 // CHECK: popad
341 // CHECK: "~{eax},~{ebp},~{ebx},~{ecx},~{edi},~{edx},~{esi},~{esp},~{dirflag},~{fpsr},~{flags}"()
342 }
343 
344 void t27() {
345   __asm mov eax, fs:[0h]
346 // CHECK: t27
347 // CHECK: call void asm sideeffect inteldialect "mov eax, fs:[$$0]", "~{eax},~{dirflag},~{fpsr},~{flags}"()
348 }
349 
350 void t28() {
351 // CHECK: t28
352   __asm align 8
353 // CHECK: .align 3
354   __asm align 16;
355 // CHECK: .align 4
356   __asm align 128;
357 // CHECK: .align 7
358   __asm ALIGN 256;
359 // CHECK: .align 8
360 // CHECK: "~{dirflag},~{fpsr},~{flags}"()
361 }
362 
363 void t29() {
364 // CHECK: t29
365   int arr[2] = {0, 0};
366   int olen = 0, osize = 0, otype = 0;
367   __asm mov olen, LENGTH arr
368 // CHECK: mov dword ptr $0, $$2
369   __asm mov osize, SIZE arr
370 // CHECK: mov dword ptr $1, $$8
371   __asm mov otype, TYPE arr
372 // CHECK: mov dword ptr $2, $$4
373 // CHECK: "=*m,=*m,=*m,~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}}, i32* %{{.*}}, i32* %{{.*}})
374 }
375 
376 int results[2] = {13, 37};
377 int *t30()
378 // CHECK: t30
379 {
380   int *res;
381   __asm lea edi, results
382 // CHECK: lea edi, $2
383   __asm mov res, edi
384 // CHECK: mov $0, edi
385   return res;
386 // CHECK: "=*m,={eax},*m,~{edi},~{dirflag},~{fpsr},~{flags}"(i32** %{{.*}}, [2 x i32]* @{{.*}})
387 }
388 
389 void t31() {
390 // CHECK: t31
391   __asm pushad
392 // CHECK: pushad
393   __asm popad
394 // CHECK: popad
395 // CHECK: "~{eax},~{ebp},~{ebx},~{ecx},~{edi},~{edx},~{esi},~{esp},~{dirflag},~{fpsr},~{flags}"()
396 }
397 
398 void t32() {
399 // CHECK: t32
400   int i;
401   __asm mov eax, i
402 // CHECK: mov eax, $0
403   __asm mov eax, dword ptr i
404 // CHECK: mov eax, dword ptr $1
405   __asm mov ax, word ptr i
406 // CHECK: mov ax, word ptr $2
407   __asm mov al, byte ptr i
408 // CHECK: mov al, byte ptr $3
409 // CHECK: "*m,*m,*m,*m,~{al},~{ax},~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}}, i32* %{{.*}}, i32* %{{.*}}, i32* %{{.*}})
410 }
411 
412 void t33() {
413 // CHECK: t33
414   int i;
415   __asm mov eax, [i]
416 // CHECK: mov eax, $0
417   __asm mov eax, dword ptr [i]
418 // CHECK: mov eax, dword ptr $1
419   __asm mov ax, word ptr [i]
420 // CHECK: mov ax, word ptr $2
421   __asm mov al, byte ptr [i]
422 // CHECK: mov al, byte ptr $3
423 // CHECK: "*m,*m,*m,*m,~{al},~{ax},~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}}, i32* %{{.*}}, i32* %{{.*}}, i32* %{{.*}})
424 }
425 
426 void t34() {
427 // CHECK: t34
428   __asm prefetchnta 64[eax]
429 // CHECK: prefetchnta [eax + $$64]
430   __asm mov eax, dword ptr 4[eax]
431 // CHECK: mov eax, dword ptr [eax + $$4]
432 // CHECK: "~{eax},~{dirflag},~{fpsr},~{flags}"()
433 }
434 
435 void t35() {
436 // CHECK: t35
437   __asm prefetchnta [eax + (200*64)]
438 // CHECK: prefetchnta [eax + $$12800]
439   __asm mov eax, dword ptr [eax + (200*64)]
440 // CHECK: mov eax, dword ptr [eax + $$12800]
441 // CHECK: "~{eax},~{dirflag},~{fpsr},~{flags}"()
442 }
443 
444 void t36() {
445 // CHECK: t36
446   int arr[4];
447   // Work around PR20368: These should be single line blocks
448   __asm { mov eax, 4[arr] }
449 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
450   __asm { mov eax, 4[arr + 4] }
451 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$8]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
452   __asm { mov eax, 8[arr + 4 + 32*2 - 4] }
453 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$72]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
454   __asm { mov eax, 12[4 + arr] }
455 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$16]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
456   __asm { mov eax, 4[4 + arr + 4] }
457 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$12]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
458   __asm { mov eax, 4[64 + arr + (2*32)] }
459 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$132]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
460   __asm { mov eax, 4[64 + arr - 2*32] }
461 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
462   __asm { mov eax, [arr + 4] }
463 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
464   __asm { mov eax, [arr + 4 + 32*2 - 4] }
465 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$64]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
466   __asm { mov eax, [4 + arr] }
467 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
468   __asm { mov eax, [4 + arr + 4] }
469 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$8]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
470   __asm { mov eax, [64 + arr + (2*32)] }
471 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$128]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
472   __asm { mov eax, [64 + arr - 2*32] }
473 // CHECK: call void asm sideeffect inteldialect "mov eax, $0", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
474 }
475 
476 void t37() {
477 // CHECK: t37
478   __asm mov eax, 4 + 8
479 // CHECK: mov eax, $$12
480   __asm mov eax, 4 + 8 * 16
481 // CHECK: mov eax, $$132
482   __asm mov eax, -4 + 8 * 16
483 // CHECK: mov eax, $$124
484   __asm mov eax, (4 + 4) * 16
485 // CHECK: mov eax, $$128
486   __asm mov eax, 4 + 8 * -16
487 // CHECK: mov eax, $$-124
488   __asm mov eax, 4 + 16 / -8
489 // CHECK: mov eax, $$2
490   __asm mov eax, (16 + 16) / -8
491 // CHECK: mov eax, $$-4
492   __asm mov eax, ~15
493 // CHECK: mov eax, $$-16
494   __asm mov eax, 6 ^ 3
495 // CHECK: mov eax, $$5
496 // CHECK: "~{eax},~{dirflag},~{fpsr},~{flags}"()
497 }
498 
499 void t38() {
500 // CHECK: t38
501   int arr[4];
502   // Work around PR20368: These should be single line blocks
503   __asm { mov eax, 4+4[arr] }
504 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$8]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
505   __asm { mov eax, (4+4)[arr + 4] }
506 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$12]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
507   __asm { mov eax, 8*2[arr + 4 + 32*2 - 4] }
508 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$80]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
509   __asm { mov eax, 12+20[4 + arr] }
510 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$36]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
511   __asm { mov eax, 4*16+4[4 + arr + 4] }
512 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$76]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
513   __asm { mov eax, 4*4[64 + arr + (2*32)] }
514 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$144]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
515   __asm { mov eax, 4*(4-2)[64 + arr - 2*32] }
516 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$8]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
517   __asm { mov eax, 32*(4-2)[arr - 2*32] }
518 // CHECK: call void asm sideeffect inteldialect "mov eax, $0", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"([4 x i32]* %{{.*}})
519 }
520 
521 void cpuid() {
522   __asm cpuid
523 // CHECK-LABEL: define void @cpuid
524 // CHECK: call void asm sideeffect inteldialect "cpuid", "~{eax},~{ebx},~{ecx},~{edx},~{dirflag},~{fpsr},~{flags}"()
525 }
526 
527 typedef struct {
528   int a;
529   int b;
530 } A, *pA;
531 
532 typedef struct {
533   int b1;
534   A   b2;
535 } B;
536 
537 typedef struct {
538   int c1;
539   A   c2;
540   int c3;
541   B   c4;
542 } C, *pC;
543 
544 void t39() {
545 // CHECK-LABEL: define void @t39
546   __asm mov eax, [eax].A.b
547 // CHECK: mov eax, [eax + $$4]
548   __asm mov eax, [eax] A.b
549 // CHECK: mov eax, [eax + $$4]
550   __asm mov eax, [eax] pA.b
551 // CHECK: mov eax, [eax + $$4]
552   __asm mov eax, fs:[0] A.b
553 // CHECK: mov eax, fs:[$$4]
554   __asm mov eax, [eax].B.b2.a
555 // CHECK: mov eax, [eax + $$4]
556   __asm mov eax, [eax] B.b2.b
557 // CHECK: mov eax, [eax + $$8]
558   __asm mov eax, fs:[0] C.c2.b
559 // CHECK: mov eax, fs:[$$8]
560   __asm mov eax, [eax]C.c4.b2.b
561 // CHECK: mov eax, [eax + $$24]
562   __asm mov eax, [eax]pC.c4.b2.b
563 // CHECK: mov eax, [eax + $$24]
564 // CHECK: "~{eax},~{dirflag},~{fpsr},~{flags}"()
565 }
566 
567 void t40(float a) {
568 // CHECK-LABEL: define void @t40
569   int i;
570   __asm fld a
571 // CHECK: fld dword ptr $1
572   __asm fistp i
573 // CHECK: fistp dword ptr $0
574 // CHECK: "=*m,*m,~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}}, float* %{{.*}})
575 }
576 
577 void t41(unsigned short a) {
578 // CHECK-LABEL: define void @t41(i16 zeroext %a)
579   __asm mov cs, a;
580 // CHECK: mov cs, $0
581   __asm mov ds, a;
582 // CHECK: mov ds, $1
583   __asm mov es, a;
584 // CHECK: mov es, $2
585   __asm mov fs, a;
586 // CHECK: mov fs, $3
587   __asm mov gs, a;
588 // CHECK: mov gs, $4
589   __asm mov ss, a;
590 // CHECK: mov ss, $5
591 // CHECK: "*m,*m,*m,*m,*m,*m,~{dirflag},~{fpsr},~{flags}"(i16* {{.*}}, i16* {{.*}}, i16* {{.*}}, i16* {{.*}}, i16* {{.*}}, i16* {{.*}})
592 }
593 
594 void t42() {
595 // CHECK-LABEL: define void @t42
596   int flags;
597   __asm mov flags, eax
598 // CHECK: mov $0, eax
599 // CHECK: "=*m,~{dirflag},~{fpsr},~{flags}"(i32* %flags)
600 }
601 
602 void t43() {
603 // CHECK-LABEL: define void @t43
604   C strct;
605 // Work around PR20368: These should be single line blocks
606  __asm { mov eax, 4[strct.c1] }
607 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
608   __asm { mov eax, 4[strct.c3 + 4] }
609 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$8]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
610   __asm { mov eax, 8[strct.c2.a + 4 + 32*2 - 4] }
611 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$72]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
612   __asm { mov eax, 12[4 + strct.c2.b] }
613 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$16]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
614   __asm { mov eax, 4[4 + strct.c4.b2.b + 4] }
615 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$12]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
616   __asm { mov eax, 4[64 + strct.c1 + (2*32)] }
617 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$132]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
618   __asm { mov eax, 4[64 + strct.c2.a - 2*32] }
619 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
620   __asm { mov eax, [strct.c4.b1 + 4] }
621 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
622   __asm { mov eax, [strct.c4.b2.a + 4 + 32*2 - 4] }
623 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$64]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
624   __asm { mov eax, [4 + strct.c1] }
625 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$4]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
626   __asm { mov eax, [4 + strct.c2.b + 4] }
627 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$8]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
628   __asm { mov eax, [64 + strct.c3 + (2*32)] }
629 // CHECK: call void asm sideeffect inteldialect "mov eax, $0[$$128]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
630   __asm { mov eax, [64 + strct.c4.b2.b - 2*32] }
631 // CHECK: call void asm sideeffect inteldialect "mov eax, $0", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
632 }
633 
634 void t44() {
635   // CHECK-LABEL: define void @t44
636   __asm {
637     mov cr0, eax
638     mov cr2, ebx
639     mov cr3, ecx
640     mov cr4, edx
641   }
642   // 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}"()
643 }
644 
645 void t45() {
646   // CHECK-LABEL: define void @t45
647   __asm {
648     mov dr0, eax
649     mov dr1, ebx
650     mov dr2, ebx
651     mov dr3, ecx
652     mov dr6, edx
653     mov dr7, ecx
654   }
655   // 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}"()
656 }
657 
658 void t46() {
659   // CHECK-LABEL: define void @t46
660   __asm add eax, -128[eax]
661   // CHECK: call void asm sideeffect inteldialect "add eax, [eax + $$-128]", "~{eax},~{flags},~{dirflag},~{fpsr},~{flags}"()
662 }
663 
664 void t47() {
665   // CHECK-LABEL: define void @t47
666   __asm {
667     bndmk bnd0, dword ptr [eax]
668     bndmk bnd1, dword ptr [ebx]
669     bndmk bnd2, dword ptr [ecx]
670     bndmk bnd3, dword ptr [edx]
671   }
672   // CHECK: call void asm sideeffect inteldialect "bndmk bnd0, dword ptr [eax]\0A\09bndmk bnd1, dword ptr [ebx]\0A\09bndmk bnd2, dword ptr [ecx]\0A\09bndmk bnd3, dword ptr [edx]", "~{bnd0},~{bnd1},~{bnd2},~{bnd3},~{dirflag},~{fpsr},~{flags}"()
673 }
674 
675 void dot_operator(){
676   // CHECK-LABEL: define void @dot_operator
677 	__asm { mov eax, 3[ebx]A.b}
678   // CHECK: call void asm sideeffect inteldialect "mov eax, [ebx + $$7]", "~{eax},~{dirflag},~{fpsr},~{flags}"
679 }
680 
681 void call_clobber() {
682   __asm call t41
683   // CHECK-LABEL: define void @call_clobber
684   // CHECK: call void asm sideeffect inteldialect "call dword ptr $0", "*m,~{dirflag},~{fpsr},~{flags}"(void (i16)* @t41)
685 }
686 
687 void xgetbv() {
688   __asm xgetbv
689 }
690 // CHECK-LABEL: define void @xgetbv()
691 // CHECK: call void asm sideeffect inteldialect "xgetbv", "~{eax},~{edx},~{dirflag},~{fpsr},~{flags}"()
692 
693 void label1() {
694   __asm {
695     label:
696     jmp label
697   }
698   // CHECK-LABEL: define void @label1()
699   // CHECK: call void asm sideeffect inteldialect "{{.*}}__MSASMLABEL_.${:uid}__label:\0A\09jmp {{.*}}__MSASMLABEL_.${:uid}__label", "~{dirflag},~{fpsr},~{flags}"() [[ATTR1:#[0-9]+]]
700 }
701 
702 void label2() {
703   __asm {
704     jmp label
705     label:
706   }
707   // CHECK-LABEL: define void @label2
708   // CHECK: call void asm sideeffect inteldialect "jmp {{.*}}__MSASMLABEL_.${:uid}__label\0A\09{{.*}}__MSASMLABEL_.${:uid}__label:", "~{dirflag},~{fpsr},~{flags}"()
709 }
710 
711 void label3() {
712   __asm {
713     label:
714     mov eax, label
715   }
716   // CHECK-LABEL: define void @label3
717   // CHECK: call void asm sideeffect inteldialect "{{.*}}__MSASMLABEL_.${:uid}__label:\0A\09mov eax, {{.*}}__MSASMLABEL_.${:uid}__label", "~{eax},~{dirflag},~{fpsr},~{flags}"()
718 }
719 
720 void label4() {
721   __asm {
722     label:
723     mov eax, [label]
724   }
725   // CHECK-LABEL: define void @label4
726   // CHECK: call void asm sideeffect inteldialect "{{.*}}__MSASMLABEL_.${:uid}__label:\0A\09mov eax, {{.*}}__MSASMLABEL_.${:uid}__label", "~{eax},~{dirflag},~{fpsr},~{flags}"()
727 }
728 
729 void label5() {
730   __asm {
731     jmp dollar_label$
732     dollar_label$:
733   }
734   // CHECK-LABEL: define void @label5
735   // CHECK: call void asm sideeffect inteldialect "jmp {{.*}}__MSASMLABEL_.${:uid}__dollar_label$$\0A\09{{.*}}__MSASMLABEL_.${:uid}__dollar_label$$:", "~{dirflag},~{fpsr},~{flags}"()
736 }
737 
738 void label6(){
739   __asm {
740       jmp short label
741       jc  short label
742       jz  short label
743     label:
744   }
745   // CHECK-LABEL: define void @label6
746   // CHECK: jmp {{.*}}__MSASMLABEL_.${:uid}__label\0A\09jc {{.*}}__MSASMLABEL_.${:uid}__label\0A\09jz {{.*}}__MSASMLABEL_.${:uid}__label\0A\09{{.*}}__MSASMLABEL_.${:uid}__label:"
747 }
748 
749 // Don't include mxcsr in the clobber list.
750 void mxcsr() {
751   char buf[4096];
752   __asm fxrstor buf
753 }
754 // CHECK-LABEL: define void @mxcsr
755 // CHECK: call void asm sideeffect inteldialect "fxrstor $0", "=*m,~{dirflag},~{fpsr},~{flags}"
756 
757 typedef union _LARGE_INTEGER {
758   struct {
759     unsigned int LowPart;
760     unsigned int  HighPart;
761   };
762   struct {
763     unsigned int LowPart;
764     unsigned int  HighPart;
765   } u;
766   unsigned long long QuadPart;
767 } LARGE_INTEGER, *PLARGE_INTEGER;
768 
769 int test_indirect_field(LARGE_INTEGER LargeInteger) {
770     __asm mov     eax, LargeInteger.LowPart
771 }
772 // CHECK-LABEL: define i32 @test_indirect_field(
773 // CHECK: call i32 asm sideeffect inteldialect "mov eax, $1",
774 
775 // MS ASM containing labels must not be duplicated (PR23715).
776 // CHECK: attributes [[ATTR1]] = {
777 // CHECK-NOT: noduplicate
778 // CHECK-SAME: }{{$}}
779