xref: /llvm-project/llvm/test/CodeGen/X86/safestack.ll (revision 2f448bf509432c1a19ec46ab8cbc7353c03c6280)
1; RUN: llc -mtriple=i386-linux < %s -o - | FileCheck --check-prefix=LINUX-I386 %s
2; RUN: llc -mtriple=x86_64-linux < %s -o - | FileCheck --check-prefix=LINUX-X64 %s
3; RUN: llc -mtriple=i386-linux-android < %s -o - | FileCheck --check-prefix=ANDROID-I386 %s
4; RUN: llc -mtriple=x86_64-linux-android < %s -o - | FileCheck --check-prefix=ANDROID-X64 %s
5; RUN: llc -mtriple=x86_64-fuchsia < %s -o - | FileCheck --check-prefix=FUCHSIA-X64 %s
6
7; RUN: llc -mtriple=i386-linux -safestack-use-pointer-address < %s -o - | FileCheck --check-prefix=LINUX-I386-PA %s
8
9define void @_Z1fv() safestack {
10entry:
11  %x = alloca i32, align 4
12  call void @_Z7CapturePi(ptr nonnull %x)
13  ret void
14}
15
16declare void @_Z7CapturePi(ptr)
17
18; LINUX-X64: movq __safestack_unsafe_stack_ptr@GOTTPOFF(%rip), %[[A:.*]]
19; LINUX-X64: movq %fs:(%[[A]]), %[[B:.*]]
20; LINUX-X64: leaq -16(%[[B]]), %[[C:.*]]
21; LINUX-X64: movq %[[C]], %fs:(%[[A]])
22
23; LINUX-I386: movl __safestack_unsafe_stack_ptr@INDNTPOFF, %[[A:.*]]
24; LINUX-I386: movl %gs:(%[[A]]), %[[B:.*]]
25; LINUX-I386: leal -16(%[[B]]), %[[C:.*]]
26; LINUX-I386: movl %[[C]], %gs:(%[[A]])
27
28; ANDROID-I386: movl %gs:36, %[[A:.*]]
29; ANDROID-I386: leal -16(%[[A]]), %[[B:.*]]
30; ANDROID-I386: movl %[[B]], %gs:36
31
32; ANDROID-X64: movq %fs:72, %[[A:.*]]
33; ANDROID-X64: leaq -16(%[[A]]), %[[B:.*]]
34; ANDROID-X64: movq %[[B]], %fs:72
35
36; FUCHSIA-X64: movq %fs:24, %[[A:.*]]
37; FUCHSIA-X64: leaq -16(%[[A]]), %[[B:.*]]
38; FUCHSIA-X64: movq %[[B]], %fs:24
39
40; LINUX-I386-PA: calll __safestack_pointer_address
41; LINUX-I386-PA: movl %eax, %[[A:.*]]
42; LINUX-I386-PA: movl (%eax), %[[B:.*]]
43; LINUX-I386-PA: leal -16(%[[B]]), %[[C:.*]]
44; LINUX-I386-PA: movl %[[C]], (%[[A]])
45