1; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -verify-machineinstrs | FileCheck %s -check-prefix=X32-Linux
2; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux  -verify-machineinstrs | FileCheck %s -check-prefix=X64-Linux
3; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -code-model=large -verify-machineinstrs | FileCheck %s -check-prefix=X64-Linux-Large
4; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux-gnux32 -verify-machineinstrs | FileCheck %s -check-prefix=X32ABI
5; RUN: llc < %s -mcpu=generic -mtriple=i686-darwin -verify-machineinstrs | FileCheck %s -check-prefix=X32-Darwin
6; RUN: llc < %s -mcpu=generic -mtriple=x86_64-darwin -verify-machineinstrs | FileCheck %s -check-prefix=X64-Darwin
7; RUN: llc < %s -mcpu=generic -mtriple=i686-mingw32 -verify-machineinstrs | FileCheck %s -check-prefix=X32-MinGW
8; RUN: llc < %s -mcpu=generic -mtriple=x86_64-freebsd -verify-machineinstrs | FileCheck %s -check-prefix=X64-FreeBSD
9; RUN: llc < %s -mcpu=generic -mtriple=i686-dragonfly -verify-machineinstrs | FileCheck %s -check-prefix=X32-DFlyBSD
10; RUN: llc < %s -mcpu=generic -mtriple=x86_64-dragonfly -verify-machineinstrs | FileCheck %s -check-prefix=X64-DFlyBSD
11; RUN: llc < %s -mcpu=generic -mtriple=x86_64-mingw32 -verify-machineinstrs | FileCheck %s -check-prefix=X64-MinGW
12
13; We used to crash with filetype=obj
14; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -filetype=obj -o /dev/null
15; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -filetype=obj -o /dev/null
16; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux-gnux32 -filetype=obj -o /dev/null
17; RUN: llc < %s -mcpu=generic -mtriple=i686-darwin -filetype=obj -o /dev/null
18; RUN: llc < %s -mcpu=generic -mtriple=x86_64-darwin -filetype=obj -o /dev/null
19; RUN: llc < %s -mcpu=generic -mtriple=i686-mingw32 -filetype=obj -o /dev/null
20; RUN: llc < %s -mcpu=generic -mtriple=x86_64-freebsd -filetype=obj -o /dev/null
21; RUN: llc < %s -mcpu=generic -mtriple=i686-dragonfly -filetype=obj -o /dev/null
22; RUN: llc < %s -mcpu=generic -mtriple=x86_64-dragonfly -filetype=obj -o /dev/null
23; RUN: llc < %s -mcpu=generic -mtriple=x86_64-mingw32 -filetype=obj -o /dev/null
24
25; RUN: not llc < %s -mcpu=generic -mtriple=x86_64-solaris 2> %t.log
26; RUN: FileCheck %s -input-file=%t.log -check-prefix=X64-Solaris
27; RUN: not llc < %s -mcpu=generic -mtriple=i686-freebsd 2> %t.log
28; RUN: FileCheck %s -input-file=%t.log -check-prefix=X32-FreeBSD
29
30; X64-Solaris: Segmented stacks not supported on this platform
31; X32-FreeBSD: Segmented stacks not supported on FreeBSD i386
32
33; Just to prevent the alloca from being optimized away
34declare void @dummy_use(i32*, i32)
35
36define void @test_basic() #0 {
37        %mem = alloca i32, i32 10
38        call void @dummy_use (i32* %mem, i32 10)
39	ret void
40
41; X32-Linux-LABEL:       test_basic:
42
43; X32-Linux:       cmpl %gs:48, %esp
44; X32-Linux-NEXT:  jbe	.LBB0_1
45
46; X32-Linux:       pushl $0
47; X32-Linux-NEXT:  pushl $44
48; X32-Linux-NEXT:  calll __morestack
49; X32-Linux-NEXT:  ret
50
51; X64-Linux-LABEL:       test_basic:
52
53; X64-Linux:       cmpq %fs:112, %rsp
54; X64-Linux-NEXT:  jbe	.LBB0_1
55
56; X64-Linux:       movabsq $40, %r10
57; X64-Linux-NEXT:  movabsq $0, %r11
58; X64-Linux-NEXT:  callq __morestack
59; X64-Linux-NEXT:  ret
60
61; X64-Linux-Large-LABEL:       test_basic:
62
63; X64-Linux-Large:       cmpq %fs:112, %rsp
64; X64-Linux-Large-NEXT:  jbe	.LBB0_1
65
66; X64-Linux-Large:       movabsq $40, %r10
67; X64-Linux-Large-NEXT:  movabsq $0, %r11
68; X64-Linux-Large-NEXT:  callq *__morestack_addr(%rip)
69; X64-Linux-Large-NEXT:  ret
70
71; X32ABI-LABEL:       test_basic:
72
73; X32ABI:       cmpl %fs:64, %esp
74; X32ABI-NEXT:  jbe	.LBB0_1
75
76; X32ABI:       movl $40, %r10d
77; X32ABI-NEXT:  movl $0, %r11d
78; X32ABI-NEXT:  callq __morestack
79; X32ABI-NEXT:  ret
80
81; X32-Darwin-LABEL:      test_basic:
82
83; X32-Darwin:      movl $432, %ecx
84; X32-Darwin-NEXT: cmpl %gs:(%ecx), %esp
85; X32-Darwin-NEXT: jbe	LBB0_1
86
87; X32-Darwin:      pushl $0
88; X32-Darwin-NEXT: pushl $60
89; X32-Darwin-NEXT: calll ___morestack
90; X32-Darwin-NEXT: ret
91
92; X64-Darwin-LABEL:      test_basic:
93
94; X64-Darwin:      cmpq %gs:816, %rsp
95; X64-Darwin-NEXT: jbe	LBB0_1
96
97; X64-Darwin:      movabsq $40, %r10
98; X64-Darwin-NEXT: movabsq $0, %r11
99; X64-Darwin-NEXT: callq ___morestack
100; X64-Darwin-NEXT: ret
101
102; X32-MinGW-LABEL:       test_basic:
103
104; X32-MinGW:       cmpl %fs:20, %esp
105; X32-MinGW-NEXT:  jbe      LBB0_1
106
107; X32-MinGW:       pushl $0
108; X32-MinGW-NEXT:  pushl $40
109; X32-MinGW-NEXT:  calll ___morestack
110; X32-MinGW-NEXT:  ret
111
112; X64-MinGW-LABEL:       test_basic:
113
114; X64-MinGW:       cmpq %gs:40, %rsp
115; X64-MinGW-NEXT:  jbe      .LBB0_1
116
117; X64-MinGW:       movabsq $72, %r10
118; X64-MinGW-NEXT:  movabsq $32, %r11
119; X64-MinGW-NEXT:  callq __morestack
120; X64-MinGW-NEXT:  retq
121
122; X64-FreeBSD-LABEL:       test_basic:
123
124; X64-FreeBSD:       cmpq %fs:24, %rsp
125; X64-FreeBSD-NEXT:  jbe      .LBB0_1
126
127; X64-FreeBSD:       movabsq $40, %r10
128; X64-FreeBSD-NEXT:  movabsq $0, %r11
129; X64-FreeBSD-NEXT:  callq __morestack
130; X64-FreeBSD-NEXT:  ret
131
132; X32-DFlyBSD-LABEL:       test_basic:
133
134; X32-DFlyBSD:       cmpl %fs:16, %esp
135; X32-DFlyBSD-NEXT:  jbe      .LBB0_1
136
137; X32-DFlyBSD:       pushl $0
138; X32-DFlyBSD-NEXT:  pushl $40
139; X32-DFlyBSD-NEXT:  calll __morestack
140; X32-DFlyBSD-NEXT:  ret
141
142; X64-DFlyBSD-LABEL:       test_basic:
143
144; X64-DFlyBSD:       cmpq %fs:32, %rsp
145; X64-DFlyBSD-NEXT:  jbe      .LBB0_1
146
147; X64-DFlyBSD:       movabsq $40, %r10
148; X64-DFlyBSD-NEXT:  movabsq $0, %r11
149; X64-DFlyBSD-NEXT:  callq __morestack
150; X64-DFlyBSD-NEXT:  ret
151
152}
153
154define i32 @test_nested(i32 * nest %closure, i32 %other) #0 {
155       %addend = load i32 , i32 * %closure
156       %result = add i32 %other, %addend
157       %mem = alloca i32, i32 10
158       call void @dummy_use (i32* %mem, i32 10)
159       ret i32 %result
160
161; X32-Linux:       cmpl %gs:48, %esp
162; X32-Linux-NEXT:  jbe	.LBB1_1
163
164; X32-Linux:       pushl $4
165; X32-Linux-NEXT:  pushl $44
166; X32-Linux-NEXT:  calll __morestack
167; X32-Linux-NEXT:  ret
168
169; X64-Linux:       cmpq %fs:112, %rsp
170; X64-Linux-NEXT:  jbe	.LBB1_1
171
172; X64-Linux:       movq %r10, %rax
173; X64-Linux-NEXT:  movabsq $56, %r10
174; X64-Linux-NEXT:  movabsq $0, %r11
175; X64-Linux-NEXT:  callq __morestack
176; X64-Linux-NEXT:  ret
177; X64-Linux-NEXT:  movq %rax, %r10
178
179; X32ABI:       cmpl %fs:64, %esp
180; X32ABI-NEXT:  jbe	.LBB1_1
181
182; X32ABI:       movl %r10d, %eax
183; X32ABI-NEXT:  movl $56, %r10d
184; X32ABI-NEXT:  movl $0, %r11d
185; X32ABI-NEXT:  callq __morestack
186; X32ABI-NEXT:  ret
187; X32ABI-NEXT:  movq %rax, %r10
188
189; X32-Darwin:      movl $432, %edx
190; X32-Darwin-NEXT: cmpl %gs:(%edx), %esp
191; X32-Darwin-NEXT: jbe	LBB1_1
192
193; X32-Darwin:      pushl $4
194; X32-Darwin-NEXT: pushl $60
195; X32-Darwin-NEXT: calll ___morestack
196; X32-Darwin-NEXT: ret
197
198; X64-Darwin:      cmpq %gs:816, %rsp
199; X64-Darwin-NEXT: jbe	LBB1_1
200
201; X64-Darwin:      movq %r10, %rax
202; X64-Darwin-NEXT: movabsq $56, %r10
203; X64-Darwin-NEXT: movabsq $0, %r11
204; X64-Darwin-NEXT: callq ___morestack
205; X64-Darwin-NEXT: ret
206; X64-Darwin-NEXT: movq %rax, %r10
207
208; X32-MinGW:       cmpl %fs:20, %esp
209; X32-MinGW-NEXT:  jbe      LBB1_1
210
211; X32-MinGW:       pushl $4
212; X32-MinGW-NEXT:  pushl $44
213; X32-MinGW-NEXT:  calll ___morestack
214; X32-MinGW-NEXT:  ret
215
216; X64-MinGW-LABEL: test_nested:
217; X64-MinGW:       cmpq %gs:40, %rsp
218; X64-MinGW-NEXT:  jbe      .LBB1_1
219
220; X64-MinGW:       movq %r10, %rax
221; X64-MinGW-NEXT:  movabsq $88, %r10
222; X64-MinGW-NEXT:  movabsq $32, %r11
223; X64-MinGW-NEXT:  callq __morestack
224; X64-MinGW-NEXT:  retq
225; X64-MinGW-NEXT:  movq %rax, %r10
226
227; X64-FreeBSD:       cmpq %fs:24, %rsp
228; X64-FreeBSD-NEXT:  jbe      .LBB1_1
229
230; X64-FreeBSD:       movq %r10, %rax
231; X64-FreeBSD-NEXT:  movabsq $56, %r10
232; X64-FreeBSD-NEXT:  movabsq $0, %r11
233; X64-FreeBSD-NEXT:  callq __morestack
234; X64-FreeBSD-NEXT:  ret
235; X64-FreeBSD-NEXT:  movq %rax, %r10
236
237; X32-DFlyBSD:       cmpl %fs:16, %esp
238; X32-DFlyBSD-NEXT:  jbe      .LBB1_1
239
240; X32-DFlyBSD:       pushl $4
241; X32-DFlyBSD-NEXT:  pushl $44
242; X32-DFlyBSD-NEXT:  calll __morestack
243; X32-DFlyBSD-NEXT:  ret
244
245; X64-DFlyBSD:       cmpq %fs:32, %rsp
246; X64-DFlyBSD-NEXT:  jbe      .LBB1_1
247
248; X64-DFlyBSD:       movq %r10, %rax
249; X64-DFlyBSD-NEXT:  movabsq $56, %r10
250; X64-DFlyBSD-NEXT:  movabsq $0, %r11
251; X64-DFlyBSD-NEXT:  callq __morestack
252; X64-DFlyBSD-NEXT:  ret
253; X64-DFlyBSD-NEXT:  movq %rax, %r10
254
255}
256
257define void @test_large() #0 {
258        %mem = alloca i32, i32 10000
259        call void @dummy_use (i32* %mem, i32 3)
260        ret void
261
262; X32-Linux-LABEL:       test_large:
263
264; X32-Linux:       leal -40012(%esp), %ecx
265; X32-Linux-NEXT:  cmpl %gs:48, %ecx
266; X32-Linux-NEXT:  jbe	.LBB2_1
267
268; X32-Linux:       pushl $0
269; X32-Linux-NEXT:  pushl $40012
270; X32-Linux-NEXT:  calll __morestack
271; X32-Linux-NEXT:  ret
272
273; X64-Linux:       leaq -40008(%rsp), %r11
274; X64-Linux-NEXT:  cmpq %fs:112, %r11
275; X64-Linux-NEXT:  jbe	.LBB2_1
276
277; X64-Linux:       movabsq $40008, %r10
278; X64-Linux-NEXT:  movabsq $0, %r11
279; X64-Linux-NEXT:  callq __morestack
280; X64-Linux-NEXT:  ret
281
282; X32ABI:       leal -40008(%rsp), %r11d
283; X32ABI-NEXT:  cmpl %fs:64, %r11d
284; X32ABI-NEXT:  jbe	.LBB2_1
285
286; X32ABI:       movl $40008, %r10d
287; X32ABI-NEXT:  movl $0, %r11d
288; X32ABI-NEXT:  callq __morestack
289; X32ABI-NEXT:  ret
290
291; X32-Darwin:      leal -40012(%esp), %ecx
292; X32-Darwin-NEXT: movl $432, %eax
293; X32-Darwin-NEXT: cmpl %gs:(%eax), %ecx
294; X32-Darwin-NEXT: jbe	LBB2_1
295
296; X32-Darwin:      pushl $0
297; X32-Darwin-NEXT: pushl $40012
298; X32-Darwin-NEXT: calll ___morestack
299; X32-Darwin-NEXT: ret
300
301; X64-Darwin:      leaq -40008(%rsp), %r11
302; X64-Darwin-NEXT: cmpq %gs:816, %r11
303; X64-Darwin-NEXT: jbe      LBB2_1
304
305; X64-Darwin:      movabsq $40008, %r10
306; X64-Darwin-NEXT: movabsq $0, %r11
307; X64-Darwin-NEXT: callq ___morestack
308; X64-Darwin-NEXT: ret
309
310; X32-MinGW:       leal -40000(%esp), %ecx
311; X32-MinGW-NEXT:  cmpl %fs:20, %ecx
312; X32-MinGW-NEXT:  jbe      LBB2_1
313
314; X32-MinGW:       pushl $0
315; X32-MinGW-NEXT:  pushl $40000
316; X32-MinGW-NEXT:  calll ___morestack
317; X32-MinGW-NEXT:  ret
318
319; X64-MinGW-LABEL: test_large:
320; X64-MinGW:       leaq -40040(%rsp), %r11
321; X64-MinGW-NEXT:  cmpq %gs:40, %r11
322; X64-MinGW-NEXT:  jbe      .LBB2_1
323
324; X64-MinGW:       movabsq $40040, %r10
325; X64-MinGW-NEXT:  movabsq $32, %r11
326; X64-MinGW-NEXT:  callq __morestack
327; X64-MinGW-NEXT:  retq
328
329; X64-FreeBSD:       leaq -40008(%rsp), %r11
330; X64-FreeBSD-NEXT:  cmpq %fs:24, %r11
331; X64-FreeBSD-NEXT:  jbe      .LBB2_1
332
333; X64-FreeBSD:       movabsq $40008, %r10
334; X64-FreeBSD-NEXT:  movabsq $0, %r11
335; X64-FreeBSD-NEXT:  callq __morestack
336; X64-FreeBSD-NEXT:  ret
337
338; X32-DFlyBSD:       leal -40000(%esp), %ecx
339; X32-DFlyBSD-NEXT:  cmpl %fs:16, %ecx
340; X32-DFlyBSD-NEXT:  jbe      .LBB2_1
341
342; X32-DFlyBSD:       pushl $0
343; X32-DFlyBSD-NEXT:  pushl $40000
344; X32-DFlyBSD-NEXT:  calll __morestack
345; X32-DFlyBSD-NEXT:  ret
346
347; X64-DFlyBSD:       leaq -40008(%rsp), %r11
348; X64-DFlyBSD-NEXT:  cmpq %fs:32, %r11
349; X64-DFlyBSD-NEXT:  jbe      .LBB2_1
350
351; X64-DFlyBSD:       movabsq $40008, %r10
352; X64-DFlyBSD-NEXT:  movabsq $0, %r11
353; X64-DFlyBSD-NEXT:  callq __morestack
354; X64-DFlyBSD-NEXT:  ret
355
356}
357
358define fastcc void @test_fastcc() #0 {
359        %mem = alloca i32, i32 10
360        call void @dummy_use (i32* %mem, i32 10)
361        ret void
362
363; X32-Linux-LABEL:       test_fastcc:
364
365; X32-Linux:       cmpl %gs:48, %esp
366; X32-Linux-NEXT:  jbe	.LBB3_1
367
368; X32-Linux:       pushl $0
369; X32-Linux-NEXT:  pushl $44
370; X32-Linux-NEXT:  calll __morestack
371; X32-Linux-NEXT:  ret
372
373; X64-Linux-LABEL:       test_fastcc:
374
375; X64-Linux:       cmpq %fs:112, %rsp
376; X64-Linux-NEXT:  jbe	.LBB3_1
377
378; X64-Linux:       movabsq $40, %r10
379; X64-Linux-NEXT:  movabsq $0, %r11
380; X64-Linux-NEXT:  callq __morestack
381; X64-Linux-NEXT:  ret
382
383; X32ABI-LABEL:       test_fastcc:
384
385; X32ABI:       cmpl %fs:64, %esp
386; X32ABI-NEXT:  jbe	.LBB3_1
387
388; X32ABI:       movl $40, %r10d
389; X32ABI-NEXT:  movl $0, %r11d
390; X32ABI-NEXT:  callq __morestack
391; X32ABI-NEXT:  ret
392
393; X32-Darwin-LABEL:      test_fastcc:
394
395; X32-Darwin:      movl $432, %eax
396; X32-Darwin-NEXT: cmpl %gs:(%eax), %esp
397; X32-Darwin-NEXT: jbe	LBB3_1
398
399; X32-Darwin:      pushl $0
400; X32-Darwin-NEXT: pushl $60
401; X32-Darwin-NEXT: calll ___morestack
402; X32-Darwin-NEXT: ret
403
404; X64-Darwin-LABEL:      test_fastcc:
405
406; X64-Darwin:      cmpq %gs:816, %rsp
407; X64-Darwin-NEXT: jbe	LBB3_1
408
409; X64-Darwin:      movabsq $40, %r10
410; X64-Darwin-NEXT: movabsq $0, %r11
411; X64-Darwin-NEXT: callq ___morestack
412; X64-Darwin-NEXT: ret
413
414; X32-MinGW-LABEL:       test_fastcc:
415
416; X32-MinGW:       cmpl %fs:20, %esp
417; X32-MinGW-NEXT:  jbe      LBB3_1
418
419; X32-MinGW:       pushl $0
420; X32-MinGW-NEXT:  pushl $40
421; X32-MinGW-NEXT:  calll ___morestack
422; X32-MinGW-NEXT:  ret
423
424; X64-MinGW-LABEL:       test_fastcc:
425
426; X64-MinGW:       cmpq %gs:40, %rsp
427; X64-MinGW-NEXT:  jbe      .LBB3_1
428
429; X64-MinGW:       movabsq $72, %r10
430; X64-MinGW-NEXT:  movabsq $32, %r11
431; X64-MinGW-NEXT:  callq __morestack
432; X64-MinGW-NEXT:  retq
433
434; X64-FreeBSD-LABEL:       test_fastcc:
435
436; X64-FreeBSD:       cmpq %fs:24, %rsp
437; X64-FreeBSD-NEXT:  jbe    .LBB3_1
438
439; X64-FreeBSD:       movabsq $40, %r10
440; X64-FreeBSD-NEXT:  movabsq $0, %r11
441; X64-FreeBSD-NEXT:  callq __morestack
442; X64-FreeBSD-NEXT:  ret
443
444; X32-DFlyBSD-LABEL:       test_fastcc:
445
446; X32-DFlyBSD:       cmpl %fs:16, %esp
447; X32-DFlyBSD-NEXT:  jbe     .LBB3_1
448
449; X32-DFlyBSD:       pushl $0
450; X32-DFlyBSD-NEXT:  pushl $40
451; X32-DFlyBSD-NEXT:  calll __morestack
452; X32-DFlyBSD-NEXT:  ret
453
454; X64-DFlyBSD-LABEL:       test_fastcc:
455
456; X64-DFlyBSD:       cmpq %fs:32, %rsp
457; X64-DFlyBSD-NEXT:  jbe      .LBB3_1
458
459; X64-DFlyBSD:       movabsq $40, %r10
460; X64-DFlyBSD-NEXT:  movabsq $0, %r11
461; X64-DFlyBSD-NEXT:  callq __morestack
462; X64-DFlyBSD-NEXT:  ret
463
464}
465
466define fastcc void @test_fastcc_large() #0 {
467        %mem = alloca i32, i32 10000
468        call void @dummy_use (i32* %mem, i32 3)
469        ret void
470
471; X32-Linux-LABEL:       test_fastcc_large:
472
473; X32-Linux:       leal -40012(%esp), %eax
474; X32-Linux-NEXT:  cmpl %gs:48, %eax
475; X32-Linux-NEXT:  jbe	.LBB4_1
476
477; X32-Linux:       pushl $0
478; X32-Linux-NEXT:  pushl $40012
479; X32-Linux-NEXT:  calll __morestack
480; X32-Linux-NEXT:  ret
481
482; X64-Linux-LABEL:       test_fastcc_large:
483
484; X64-Linux:       leaq -40008(%rsp), %r11
485; X64-Linux-NEXT:  cmpq %fs:112, %r11
486; X64-Linux-NEXT:  jbe	.LBB4_1
487
488; X64-Linux:       movabsq $40008, %r10
489; X64-Linux-NEXT:  movabsq $0, %r11
490; X64-Linux-NEXT:  callq __morestack
491; X64-Linux-NEXT:  ret
492
493; X32ABI-LABEL:       test_fastcc_large:
494
495; X32ABI:       leal -40008(%rsp), %r11d
496; X32ABI-NEXT:  cmpl %fs:64, %r11d
497; X32ABI-NEXT:  jbe	.LBB4_1
498
499; X32ABI:       movl $40008, %r10d
500; X32ABI-NEXT:  movl $0, %r11d
501; X32ABI-NEXT:  callq __morestack
502; X32ABI-NEXT:  ret
503
504; X32-Darwin-LABEL:      test_fastcc_large:
505
506; X32-Darwin:      leal -40012(%esp), %eax
507; X32-Darwin-NEXT: movl $432, %ecx
508; X32-Darwin-NEXT: cmpl %gs:(%ecx), %eax
509; X32-Darwin-NEXT: jbe	LBB4_1
510
511; X32-Darwin:      pushl $0
512; X32-Darwin-NEXT: pushl $40012
513; X32-Darwin-NEXT: calll ___morestack
514; X32-Darwin-NEXT: ret
515
516; X64-Darwin-LABEL:      test_fastcc_large:
517
518; X64-Darwin:      leaq -40008(%rsp), %r11
519; X64-Darwin-NEXT: cmpq %gs:816, %r11
520; X64-Darwin-NEXT: jbe	LBB4_1
521
522; X64-Darwin:      movabsq $40008, %r10
523; X64-Darwin-NEXT: movabsq $0, %r11
524; X64-Darwin-NEXT: callq ___morestack
525; X64-Darwin-NEXT: ret
526
527; X32-MinGW-LABEL:       test_fastcc_large:
528
529; X32-MinGW:       leal -40000(%esp), %eax
530; X32-MinGW-NEXT:  cmpl %fs:20, %eax
531; X32-MinGW-NEXT:  jbe      LBB4_1
532
533; X32-MinGW:       pushl $0
534; X32-MinGW-NEXT:  pushl $40000
535; X32-MinGW-NEXT:  calll ___morestack
536; X32-MinGW-NEXT:  ret
537
538; X64-MinGW-LABEL:       test_fastcc_large:
539
540; X64-MinGW:       leaq -40040(%rsp), %r11
541; X64-MinGW-NEXT:  cmpq %gs:40, %r11
542; X64-MinGW-NEXT:  jbe      .LBB4_1
543
544; X64-MinGW:       movabsq $40040, %r10
545; X64-MinGW-NEXT:  movabsq $32, %r11
546; X64-MinGW-NEXT:  callq __morestack
547; X64-MinGW-NEXT:  retq
548
549; X64-FreeBSD-LABEL:       test_fastcc_large:
550
551; X64-FreeBSD:       leaq -40008(%rsp), %r11
552; X64-FreeBSD-NEXT:  cmpq %fs:24, %r11
553; X64-FreeBSD-NEXT:  jbe     .LBB4_1
554
555; X64-FreeBSD:       movabsq $40008, %r10
556; X64-FreeBSD-NEXT:  movabsq $0, %r11
557; X64-FreeBSD-NEXT:  callq __morestack
558; X64-FreeBSD-NEXT:  ret
559
560; X32-DFlyBSD-LABEL:       test_fastcc_large:
561
562; X32-DFlyBSD:       leal -40000(%esp), %eax
563; X32-DFlyBSD-NEXT:  cmpl %fs:16, %eax
564; X32-DFlyBSD-NEXT:  jbe      .LBB4_1
565
566; X32-DFlyBSD:       pushl $0
567; X32-DFlyBSD-NEXT:  pushl $40000
568; X32-DFlyBSD-NEXT:  calll __morestack
569; X32-DFlyBSD-NEXT:  ret
570
571; X64-DFlyBSD-LABEL:       test_fastcc_large:
572
573; X64-DFlyBSD:       leaq -40008(%rsp), %r11
574; X64-DFlyBSD-NEXT:  cmpq %fs:32, %r11
575; X64-DFlyBSD-NEXT:  jbe      .LBB4_1
576
577; X64-DFlyBSD:       movabsq $40008, %r10
578; X64-DFlyBSD-NEXT:  movabsq $0, %r11
579; X64-DFlyBSD-NEXT:  callq __morestack
580; X64-DFlyBSD-NEXT:  ret
581
582}
583
584define fastcc void @test_fastcc_large_with_ecx_arg(i32 %a) #0 {
585        %mem = alloca i32, i32 10000
586        call void @dummy_use (i32* %mem, i32 %a)
587        ret void
588
589; This is testing that the Mac implementation preserves ecx
590
591; X32-Darwin-LABEL:      test_fastcc_large_with_ecx_arg:
592
593; X32-Darwin:      leal -40012(%esp), %eax
594; X32-Darwin-NEXT: pushl %ecx
595; X32-Darwin-NEXT: movl $432, %ecx
596; X32-Darwin-NEXT: cmpl %gs:(%ecx), %eax
597; X32-Darwin-NEXT: popl %ecx
598; X32-Darwin-NEXT: jbe	LBB5_1
599
600; X32-Darwin:      pushl $0
601; X32-Darwin-NEXT: pushl $40012
602; X32-Darwin-NEXT: calll ___morestack
603; X32-Darwin-NEXT: ret
604
605}
606
607define void @test_nostack() #0 {
608	ret void
609
610; X32-Linux-LABEL: test_nostack:
611; X32-Linux-NOT:   calll __morestack
612
613; X64-Linux-LABEL: test_nostack:
614; X32-Linux-NOT:   callq __morestack
615
616; X32ABI-LABEL: test_nostack:
617; X32ABI-NOT:   callq __morestack
618
619; X32-Darwin-LABEL: test_nostack:
620; X32-Darwin-NOT:   calll __morestack
621
622; X64-Darwin-LABEL: test_nostack:
623; X64-Darwin-NOT:   callq __morestack
624
625; X32-MinGW-LABEL: test_nostack:
626; X32-MinGW-NOT:   calll __morestack
627
628; X64-MinGW-LABEL: test_nostack:
629; X64-MinGW-NOT:   callq __morestack
630
631; X64-FreeBSD-LABEL: test_nostack:
632; X64-FreeBSD-NOT:   callq __morestack
633
634; X32-DFlyBSD-LABEL: test_nostack:
635; X32-DFlyBSD-NOT:   calll __morestack
636
637; X64-DFlyBSD-LABEL: test_nostack:
638; X64-DFlyBSD-NOT:   callq __morestack
639}
640
641define void @test_nosplitstck() {
642	ret void
643}
644
645; Test to make sure that a morestack call is generated if there is a
646; sibling call, even if the function in question has no stack frame
647; (PR37807).
648
649declare i32 @callee(i32)
650
651define i32 @test_sibling_call_empty_frame(i32 %x) #0 {
652  %call = tail call i32 @callee(i32 %x) #0
653  ret i32 %call
654
655; X32-Linux-LABEL:       test_sibling_call_empty_frame:
656; X32-Linux:  calll __morestack
657
658; X64-Linux-LABEL:       test_sibling_call_empty_frame:
659; X64-Linux:  callq __morestack
660
661; X64-Linux-Large-LABEL:       test_sibling_call_empty_frame:
662; X64-Linux-Large:  callq *__morestack_addr(%rip)
663
664; X32ABI-LABEL:       test_sibling_call_empty_frame:
665; X32ABI:  callq __morestack
666
667; X32-Darwin-LABEL:      test_sibling_call_empty_frame:
668; X32-Darwin: calll ___morestack
669
670; X64-Darwin-LABEL:      test_sibling_call_empty_frame:
671; X64-Darwin: callq ___morestack
672
673; X32-MinGW-LABEL:       test_sibling_call_empty_frame:
674; X32-MinGW:  calll ___morestack
675
676; X64-MinGW-LABEL:       test_sibling_call_empty_frame:
677; X64-MinGW:  callq __morestack
678
679; X64-FreeBSD-LABEL:       test_sibling_call_empty_frame:
680; X64-FreeBSD:  callq __morestack
681
682; X32-DFlyBSD-LABEL:       test_sibling_call_empty_frame:
683; X32-DFlyBSD:  calll __morestack
684; X32-DFlyBSD-NEXT:  ret
685
686; X64-DFlyBSD-LABEL:       test_sibling_call_empty_frame:
687; X64-DFlyBSD:  callq __morestack
688
689}
690
691attributes #0 = { "split-stack" }
692
693; X64-Linux-Large: .rodata
694; X64-Linux-Large-NEXT: __morestack_addr:
695; X64-Linux-Large-NEXT: .quad	__morestack
696
697; X32-Linux: .section ".note.GNU-split-stack","",@progbits
698; X32-Linux: .section ".note.GNU-no-split-stack","",@progbits
699
700; X64-Linux: .section ".note.GNU-split-stack","",@progbits
701; X64-Linux: .section ".note.GNU-no-split-stack","",@progbits
702
703; X64-FreeBSD: .section ".note.GNU-split-stack","",@progbits
704; X64-FreeBSD: .section ".note.GNU-no-split-stack","",@progbits
705
706; X32-DFlyBSD: .section ".note.GNU-split-stack","",@progbits
707; X32-DFlyBSD: .section ".note.GNU-no-split-stack","",@progbits
708
709; X64-DFlyBSD: .section ".note.GNU-split-stack","",@progbits
710; X64-DFlyBSD: .section ".note.GNU-no-split-stack","",@progbits
711