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gerrit-public.fairphone.software / fp2-dev / platform / external / llvm / 7692ce9e810ed1707da46faf20c84f1ffd54bc55 / . / test / CodeGen / X86 / segmented-stacks.ll
blob: 3ba18cffccffce6debc878528e279f5bbe326c95 [file] [log] [blame]
Rafael Espindola2a1286e2011-10-26 21:20:26 +0000[diff] [blame]1; RUN: llc < %s -mtriple=i686-linux -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X32
2; RUN: llc < %s -mtriple=x86_64-linux -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X64
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]3
Rafael Espindola014f7a32012-01-11 18:14:03 +0000[diff] [blame]4; We used to crash with filetype=obj
5; RUN: llc < %s -mtriple=i686-linux -segmented-stacks -filetype=obj
6; RUN: llc < %s -mtriple=x86_64-linux -segmented-stacks -filetype=obj
7
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]8; Just to prevent the alloca from being optimized away
9declare void @dummy_use(i32*, i32)
10
Rafael Espindola7692ce92012-01-11 18:51:03 +0000[diff] [blame^]11define void @test_basic() {
12 %mem = alloca i32, i32 10
13 call void @dummy_use (i32* %mem, i32 10)
14 ret void
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]15
16; X32: test_basic:
17
Sanjoy Das199ce332011-12-03 09:32:07 +0000[diff] [blame]18; X32: cmpl %gs:48, %esp
Rafael Espindola313c7032012-01-11 18:23:35 +0000[diff] [blame]19; X32-NEXT: ja .LBB0_2
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]20
Rafael Espindola7692ce92012-01-11 18:51:03 +0000[diff] [blame^]21; X32: pushl $0
22; X32-NEXT: pushl $60
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]23; X32-NEXT: calll __morestack
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]24; X32-NEXT: ret
25
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]26; X64: test_basic:
27
Sanjoy Das199ce332011-12-03 09:32:07 +0000[diff] [blame]28; X64: cmpq %fs:112, %rsp
Rafael Espindola313c7032012-01-11 18:23:35 +0000[diff] [blame]29; X64-NEXT: ja .LBB0_2
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]30
Rafael Espindola7692ce92012-01-11 18:51:03 +0000[diff] [blame^]31; X64: movabsq $40, %r10
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]32; X64-NEXT: movabsq $0, %r11
33; X64-NEXT: callq __morestack
34; X64-NEXT: ret
35
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]36}
37
38define i32 @test_nested(i32 * nest %closure, i32 %other) {
39 %addend = load i32 * %closure
40 %result = add i32 %other, %addend
41 ret i32 %result
42
Sanjoy Das199ce332011-12-03 09:32:07 +0000[diff] [blame]43; X32: cmpl %gs:48, %esp
Rafael Espindola313c7032012-01-11 18:23:35 +0000[diff] [blame]44; X32-NEXT: ja .LBB1_2
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]45
Sanjoy Das40f82222011-12-03 09:21:07 +0000[diff] [blame]46; X32: pushl $4
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]47; X32-NEXT: pushl $0
48; X32-NEXT: calll __morestack
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]49; X32-NEXT: ret
50
Sanjoy Das199ce332011-12-03 09:32:07 +0000[diff] [blame]51; X64: cmpq %fs:112, %rsp
Rafael Espindola313c7032012-01-11 18:23:35 +0000[diff] [blame]52; X64-NEXT: ja .LBB1_2
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]53
54; X64: movq %r10, %rax
55; X64-NEXT: movabsq $0, %r10
56; X64-NEXT: movabsq $0, %r11
57; X64-NEXT: callq __morestack
Bill Wendling82222c22011-10-13 07:42:32 +0000[diff] [blame]58; X64-NEXT: ret
Rafael Espindolae840e882011-10-26 21:12:27 +0000[diff] [blame]59; X64-NEXT: movq %rax, %r10
Rafael Espindolab0bf8932011-08-30 19:51:29 +0000[diff] [blame]60
61}
Sanjoy Das199ce332011-12-03 09:32:07 +0000[diff] [blame]62
63define void @test_large() {
64 %mem = alloca i32, i32 10000
65 call void @dummy_use (i32* %mem, i32 0)
66 ret void
67
68; X32: leal -40012(%esp), %ecx
69; X32-NEXT: cmpl %gs:48, %ecx
Rafael Espindola313c7032012-01-11 18:23:35 +0000[diff] [blame]70; X32-NEXT: ja .LBB2_2
Sanjoy Das199ce332011-12-03 09:32:07 +0000[diff] [blame]71
72; X32: pushl $0
73; X32-NEXT: pushl $40012
74; X32-NEXT: calll __morestack
75; X32-NEXT: ret
76
77; X64: leaq -40008(%rsp), %r11
78; X64-NEXT: cmpq %fs:112, %r11
Rafael Espindola313c7032012-01-11 18:23:35 +0000[diff] [blame]79; X64-NEXT: ja .LBB2_2
Sanjoy Das199ce332011-12-03 09:32:07 +0000[diff] [blame]80
81; X64: movabsq $40008, %r10
82; X64-NEXT: movabsq $0, %r11
83; X64-NEXT: callq __morestack
84; X64-NEXT: ret
85
86}
Rafael Espindola25cd4ff2012-01-11 18:41:19 +0000[diff] [blame]87
88define fastcc void @test_fastcc() {
89 %mem = alloca i32, i32 10
90 call void @dummy_use (i32* %mem, i32 10)
91 ret void
92
93; X32: test_fastcc:
94
95; X32: cmpl %gs:48, %esp
96; X32-NEXT: ja .LBB3_2
97
98; X32: pushl $0
99; X32-NEXT: pushl $60
100; X32-NEXT: calll __morestack
101; X32-NEXT: ret
102
103; X64: test_fastcc:
104
105; X64: cmpq %fs:112, %rsp
106; X64-NEXT: ja .LBB3_2
107
108; X64: movabsq $40, %r10
109; X64-NEXT: movabsq $0, %r11
110; X64-NEXT: callq __morestack
111; X64-NEXT: ret
112
113}
114
115define fastcc void @test_fastcc_large() {
116 %mem = alloca i32, i32 10000
117 call void @dummy_use (i32* %mem, i32 0)
118 ret void
119
120; X32: test_fastcc_large:
121
122; X32: leal -40012(%esp), %eax
123; X32-NEXT: cmpl %gs:48, %eax
124; X32-NEXT: ja .LBB4_2
125
126; X32: pushl $0
127; X32-NEXT: pushl $40012
128; X32-NEXT: calll __morestack
129; X32-NEXT: ret
130
131; X64: test_fastcc_large:
132
133; X64: leaq -40008(%rsp), %r11
134; X64-NEXT: cmpq %fs:112, %r11
135; X64-NEXT: ja .LBB4_2
136
137; X64: movabsq $40008, %r10
138; X64-NEXT: movabsq $0, %r11
139; X64-NEXT: callq __morestack
140; X64-NEXT: ret
141}