derek.holloway
7502bf64a4
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128 lines
4.4 KiB
LLVM
128 lines
4.4 KiB
LLVM
; RUN: llc -mtriple=aarch64-linux-gnu -global-isel=0 -fast-isel=0 -verify-machineinstrs \
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; RUN: -relocation-model=pic -mattr=+pauth -mattr=+fpac %s -o - | FileCheck %s --check-prefixes=CHECK,NOTRAP
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; RUN: llc -mtriple=aarch64-linux-gnu -global-isel=0 -fast-isel=0 -verify-machineinstrs \
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; RUN: -relocation-model=pic -mattr=+pauth %s -o - | FileCheck %s --check-prefixes=CHECK,TRAP
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; RUN: llc -mtriple=aarch64-linux-gnu -global-isel=0 -fast-isel=1 -verify-machineinstrs \
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; RUN: -relocation-model=pic -mattr=+pauth -mattr=+fpac %s -o - | FileCheck %s --check-prefixes=CHECK,NOTRAP
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; RUN: llc -mtriple=aarch64-linux-gnu -global-isel=0 -fast-isel=1 -verify-machineinstrs \
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; RUN: -relocation-model=pic -mattr=+pauth %s -o - | FileCheck %s --check-prefixes=CHECK,TRAP
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; RUN: llc -mtriple=aarch64-linux-gnu -global-isel=1 -global-isel-abort=1 -verify-machineinstrs \
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; RUN: -relocation-model=pic -mattr=+pauth -mattr=+fpac %s -o - | FileCheck %s --check-prefixes=CHECK,NOTRAP
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; RUN: llc -mtriple=aarch64-linux-gnu -global-isel=1 -global-isel-abort=1 -verify-machineinstrs \
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; RUN: -relocation-model=pic -mattr=+pauth %s -o - | FileCheck %s --check-prefixes=CHECK,TRAP
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;; Note: for FastISel, we fall back to SelectionDAG
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@var = global i32 0
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define i32 @get_globalvar() {
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; CHECK-LABEL: get_globalvar:
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; CHECK: adrp x17, :got_auth:var
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; CHECK-NEXT: add x17, x17, :got_auth_lo12:var
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; NOTRAP-NEXT: ldr x8, [x17]
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; NOTRAP-NEXT: autda x8, x17
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; TRAP-NEXT: ldr x16, [x17]
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; TRAP-NEXT: autda x16, x17
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; TRAP-NEXT: mov x17, x16
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; TRAP-NEXT: xpacd x17
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; TRAP-NEXT: cmp x16, x17
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; TRAP-NEXT: b.eq .Lauth_success_0
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; TRAP-NEXT: brk #0xc472
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; TRAP-NEXT: .Lauth_success_0:
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; TRAP-NEXT: mov x8, x16
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; CHECK-NEXT: ldr w0, [x8]
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; CHECK-NEXT: ret
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%val = load i32, ptr @var
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ret i32 %val
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}
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define ptr @get_globalvaraddr() {
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; CHECK-LABEL: get_globalvaraddr:
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; CHECK: adrp x17, :got_auth:var
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; CHECK-NEXT: add x17, x17, :got_auth_lo12:var
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; NOTRAP-NEXT: ldr x0, [x17]
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; NOTRAP-NEXT: autda x0, x17
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; TRAP-NEXT: ldr x16, [x17]
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; TRAP-NEXT: autda x16, x17
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; TRAP-NEXT: mov x17, x16
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; TRAP-NEXT: xpacd x17
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; TRAP-NEXT: cmp x16, x17
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; TRAP-NEXT: b.eq .Lauth_success_1
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; TRAP-NEXT: brk #0xc472
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; TRAP-NEXT: .Lauth_success_1:
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; TRAP-NEXT: mov x0, x16
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; CHECK-NEXT: ret
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%val = load i32, ptr @var
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ret ptr @var
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}
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declare i32 @foo()
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define ptr @resign_globalfunc() {
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; CHECK-LABEL: resign_globalfunc:
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; CHECK: adrp x17, :got_auth:foo
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; CHECK-NEXT: add x17, x17, :got_auth_lo12:foo
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; CHECK-NEXT: ldr x16, [x17]
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; CHECK-NEXT: autia x16, x17
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; TRAP-NEXT: mov x17, x16
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; TRAP-NEXT: xpaci x17
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; TRAP-NEXT: cmp x16, x17
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; TRAP-NEXT: b.eq .Lauth_success_2
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; TRAP-NEXT: brk #0xc470
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; TRAP-NEXT: .Lauth_success_2:
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; CHECK-NEXT: mov x17, #42
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; CHECK-NEXT: pacia x16, x17
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; CHECK-NEXT: mov x0, x16
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; CHECK-NEXT: ret
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ret ptr ptrauth (ptr @foo, i32 0, i64 42)
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}
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define ptr @resign_globalvar() {
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; CHECK-LABEL: resign_globalvar:
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; CHECK: adrp x17, :got_auth:var
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; CHECK-NEXT: add x17, x17, :got_auth_lo12:var
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; CHECK-NEXT: ldr x16, [x17]
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; CHECK-NEXT: autda x16, x17
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; TRAP-NEXT: mov x17, x16
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; TRAP-NEXT: xpacd x17
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; TRAP-NEXT: cmp x16, x17
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; TRAP-NEXT: b.eq .Lauth_success_3
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; TRAP-NEXT: brk #0xc472
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; TRAP-NEXT: .Lauth_success_3:
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; CHECK-NEXT: mov x17, #43
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; CHECK-NEXT: pacdb x16, x17
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; CHECK-NEXT: mov x0, x16
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; CHECK-NEXT: ret
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ret ptr ptrauth (ptr @var, i32 3, i64 43)
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}
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define ptr @resign_globalvar_offset() {
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; CHECK-LABEL: resign_globalvar_offset:
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; CHECK: adrp x17, :got_auth:var
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; CHECK-NEXT: add x17, x17, :got_auth_lo12:var
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; CHECK-NEXT: ldr x16, [x17]
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; CHECK-NEXT: autda x16, x17
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; TRAP-NEXT: mov x17, x16
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; TRAP-NEXT: xpacd x17
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; TRAP-NEXT: cmp x16, x17
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; TRAP-NEXT: b.eq .Lauth_success_4
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; TRAP-NEXT: brk #0xc472
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; TRAP-NEXT: .Lauth_success_4:
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; CHECK-NEXT: add x16, x16, #16
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; CHECK-NEXT: mov x17, #44
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; CHECK-NEXT: pacda x16, x17
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; CHECK-NEXT: mov x0, x16
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; CHECK-NEXT: ret
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ret ptr ptrauth (ptr getelementptr (i8, ptr @var, i64 16), i32 2, i64 44)
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}
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!llvm.module.flags = !{!0}
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!0 = !{i32 8, !"ptrauth-elf-got", i32 1}
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