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
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
8 ; Just to prevent the alloca from being optimized away
9 declare void @dummy_use(i32*, i32)
11 define i32 @test_basic(i32 %l) {
12 %mem = alloca i32, i32 %l
13 call void @dummy_use (i32* %mem, i32 %l)
14 %terminate = icmp eq i32 %l, 0
15 br i1 %terminate, label %true, label %false
21 %newlen = sub i32 %l, 1
22 %retvalue = call i32 @test_basic(i32 %newlen)
27 ; X32: cmpl %gs:48, %esp
28 ; X32-NEXT: ja .LBB0_2
32 ; X32-NEXT: calll __morestack
35 ; X32: movl %esp, %eax
36 ; X32-NEXT: subl %ecx, %eax
37 ; X32-NEXT: cmpl %eax, %gs:48
39 ; X32: movl %eax, %esp
42 ; X32-NEXT: pushl %ecx
43 ; X32-NEXT: calll __morestack_allocate_stack_space
44 ; X32-NEXT: addl $16, %esp
48 ; X64: cmpq %fs:112, %rsp
49 ; X64-NEXT: ja .LBB0_2
51 ; X64: movabsq $24, %r10
52 ; X64-NEXT: movabsq $0, %r11
53 ; X64-NEXT: callq __morestack
56 ; X64: movq %rsp, %rdi
57 ; X64-NEXT: subq %rax, %rdi
58 ; X64-NEXT: cmpq %rdi, %fs:112
60 ; X64: movq %rdi, %rsp
62 ; X64: movq %rax, %rdi
63 ; X64-NEXT: callq __morestack_allocate_stack_space
64 ; X64-NEXT: movq %rax, %rdi
68 define i32 @test_nested(i32 * nest %closure, i32 %other) {
69 %addend = load i32 * %closure
70 %result = add i32 %other, %addend
73 ; X32: cmpl %gs:48, %esp
74 ; X32-NEXT: ja .LBB1_2
78 ; X32-NEXT: calll __morestack
81 ; X64: cmpq %fs:112, %rsp
82 ; X64-NEXT: ja .LBB1_2
84 ; X64: movq %r10, %rax
85 ; X64-NEXT: movabsq $0, %r10
86 ; X64-NEXT: movabsq $0, %r11
87 ; X64-NEXT: callq __morestack
89 ; X64-NEXT: movq %rax, %r10
93 define void @test_large() {
94 %mem = alloca i32, i32 10000
95 call void @dummy_use (i32* %mem, i32 0)
98 ; X32: leal -40012(%esp), %ecx
99 ; X32-NEXT: cmpl %gs:48, %ecx
100 ; X32-NEXT: ja .LBB2_2
103 ; X32-NEXT: pushl $40012
104 ; X32-NEXT: calll __morestack
107 ; X64: leaq -40008(%rsp), %r11
108 ; X64-NEXT: cmpq %fs:112, %r11
109 ; X64-NEXT: ja .LBB2_2
111 ; X64: movabsq $40008, %r10
112 ; X64-NEXT: movabsq $0, %r11
113 ; X64-NEXT: callq __morestack