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; RUN: llc -mtriple=aarch64-linux-gnu -global-isel=0 -fast-isel=0 -verify-machineinstrs \
; RUN: -relocation-model=pic -mattr=+pauth -mattr=+fpac %s -o - | FileCheck %s --check-prefixes=CHECK,NOTRAP
; RUN: llc -mtriple=aarch64-linux-gnu -global-isel=0 -fast-isel=0 -verify-machineinstrs \
; RUN: -relocation-model=pic -mattr=+pauth %s -o - | FileCheck %s --check-prefixes=CHECK,TRAP
; RUN: llc -mtriple=aarch64-linux-gnu -global-isel=0 -fast-isel=1 -verify-machineinstrs \
; RUN: -relocation-model=pic -mattr=+pauth -mattr=+fpac %s -o - | FileCheck %s --check-prefixes=CHECK,NOTRAP
; RUN: llc -mtriple=aarch64-linux-gnu -global-isel=0 -fast-isel=1 -verify-machineinstrs \
; RUN: -relocation-model=pic -mattr=+pauth %s -o - | FileCheck %s --check-prefixes=CHECK,TRAP
; RUN: llc -mtriple=aarch64-linux-gnu -global-isel=1 -global-isel-abort=1 -verify-machineinstrs \
; RUN: -relocation-model=pic -mattr=+pauth -mattr=+fpac %s -o - | FileCheck %s --check-prefixes=CHECK,NOTRAP
; RUN: llc -mtriple=aarch64-linux-gnu -global-isel=1 -global-isel-abort=1 -verify-machineinstrs \
; RUN: -relocation-model=pic -mattr=+pauth %s -o - | FileCheck %s --check-prefixes=CHECK,TRAP
;; Note: for FastISel, we fall back to SelectionDAG
@var = global i32 0
define i32 @get_globalvar() {
; CHECK-LABEL: get_globalvar:
; CHECK: adrp x17, :got_auth:var
; CHECK-NEXT: add x17, x17, :got_auth_lo12:var
; NOTRAP-NEXT: ldr x8, [x17]
; NOTRAP-NEXT: autda x8, x17
; TRAP-NEXT: ldr x16, [x17]
; TRAP-NEXT: autda x16, x17
; TRAP-NEXT: mov x17, x16
; TRAP-NEXT: xpacd x17
; TRAP-NEXT: cmp x16, x17
; TRAP-NEXT: b.eq .Lauth_success_0
; TRAP-NEXT: brk #0xc472
; TRAP-NEXT: .Lauth_success_0:
; TRAP-NEXT: mov x8, x16
; CHECK-NEXT: ldr w0, [x8]
; CHECK-NEXT: ret
%val = load i32, ptr @var
ret i32 %val
}
define ptr @get_globalvaraddr() {
; CHECK-LABEL: get_globalvaraddr:
; CHECK: adrp x17, :got_auth:var
; CHECK-NEXT: add x17, x17, :got_auth_lo12:var
; NOTRAP-NEXT: ldr x0, [x17]
; NOTRAP-NEXT: autda x0, x17
; TRAP-NEXT: ldr x16, [x17]
; TRAP-NEXT: autda x16, x17
; TRAP-NEXT: mov x17, x16
; TRAP-NEXT: xpacd x17
; TRAP-NEXT: cmp x16, x17
; TRAP-NEXT: b.eq .Lauth_success_1
; TRAP-NEXT: brk #0xc472
; TRAP-NEXT: .Lauth_success_1:
; TRAP-NEXT: mov x0, x16
; CHECK-NEXT: ret
%val = load i32, ptr @var
ret ptr @var
}
declare i32 @foo()
define ptr @resign_globalfunc() {
; CHECK-LABEL: resign_globalfunc:
; CHECK: adrp x17, :got_auth:foo
; CHECK-NEXT: add x17, x17, :got_auth_lo12:foo
; CHECK-NEXT: ldr x16, [x17]
; CHECK-NEXT: autia x16, x17
; TRAP-NEXT: mov x17, x16
; TRAP-NEXT: xpaci x17
; TRAP-NEXT: cmp x16, x17
; TRAP-NEXT: b.eq .Lauth_success_2
; TRAP-NEXT: brk #0xc470
; TRAP-NEXT: .Lauth_success_2:
; CHECK-NEXT: mov x17, #42
; CHECK-NEXT: pacia x16, x17
; CHECK-NEXT: mov x0, x16
; CHECK-NEXT: ret
ret ptr ptrauth (ptr @foo, i32 0, i64 42)
}
define ptr @resign_globalvar() {
; CHECK-LABEL: resign_globalvar:
; CHECK: adrp x17, :got_auth:var
; CHECK-NEXT: add x17, x17, :got_auth_lo12:var
; CHECK-NEXT: ldr x16, [x17]
; CHECK-NEXT: autda x16, x17
; TRAP-NEXT: mov x17, x16
; TRAP-NEXT: xpacd x17
; TRAP-NEXT: cmp x16, x17
; TRAP-NEXT: b.eq .Lauth_success_3
; TRAP-NEXT: brk #0xc472
; TRAP-NEXT: .Lauth_success_3:
; CHECK-NEXT: mov x17, #43
; CHECK-NEXT: pacdb x16, x17
; CHECK-NEXT: mov x0, x16
; CHECK-NEXT: ret
ret ptr ptrauth (ptr @var, i32 3, i64 43)
}
define ptr @resign_globalvar_offset() {
; CHECK-LABEL: resign_globalvar_offset:
; CHECK: adrp x17, :got_auth:var
; CHECK-NEXT: add x17, x17, :got_auth_lo12:var
; CHECK-NEXT: ldr x16, [x17]
; CHECK-NEXT: autda x16, x17
; TRAP-NEXT: mov x17, x16
; TRAP-NEXT: xpacd x17
; TRAP-NEXT: cmp x16, x17
; TRAP-NEXT: b.eq .Lauth_success_4
; TRAP-NEXT: brk #0xc472
; TRAP-NEXT: .Lauth_success_4:
; CHECK-NEXT: add x16, x16, #16
; CHECK-NEXT: mov x17, #44
; CHECK-NEXT: pacda x16, x17
; CHECK-NEXT: mov x0, x16
; CHECK-NEXT: ret
ret ptr ptrauth (ptr getelementptr (i8, ptr @var, i64 16), i32 2, i64 44)
}
!llvm.module.flags = !{!0}
!0 = !{i32 8, !"ptrauth-elf-got", i32 1}
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