30 lines
883 B
LLVM
30 lines
883 B
LLVM
; RUN: sed -e "s/ATTR//" %s | llc -mtriple=x86_64-linux -safestack-use-pointer-address | FileCheck --check-prefix=INLINE %s
|
|
; RUN: sed -e "s/ATTR/noinline/" %s | llc -mtriple=x86_64-linux -safestack-use-pointer-address | FileCheck --check-prefix=CALL %s
|
|
|
|
@p = external thread_local global ptr, align 8
|
|
|
|
define nonnull ptr @__safestack_pointer_address() local_unnamed_addr ATTR {
|
|
entry:
|
|
ret ptr @p
|
|
}
|
|
|
|
define void @_Z1fv() safestack {
|
|
entry:
|
|
%x = alloca i32, align 4
|
|
call void @_Z7CapturePi(ptr nonnull %x)
|
|
ret void
|
|
}
|
|
|
|
declare void @_Z7CapturePi(ptr)
|
|
|
|
; INLINE: movq p@GOTTPOFF(%rip), %[[A:.*]]
|
|
; INLINE: movq %fs:(%[[A]]), %[[B:.*]]
|
|
; INLINE: leaq -16(%[[B]]), %[[C:.*]]
|
|
; INLINE: movq %[[C]], %fs:(%[[A]])
|
|
|
|
; CALL: callq __safestack_pointer_address
|
|
; CALL: movq %rax, %[[A:.*]]
|
|
; CALL: movq (%rax), %[[B:.*]]
|
|
; CALL: leaq -16(%[[B]]), %[[C:.*]]
|
|
; CALL: movq %[[C]], (%[[A]])
|