| ; RUN: llc < %s | FileCheck %s |
| |
| target triple = "aarch64--linux-android" |
| |
| define i8* @f1(i8* %x0, i8* %x1) { |
| ; CHECK: f1: |
| ; CHECK: str x30, [sp, #-16]! |
| ; CHECK-NEXT: .cfi_def_cfa_offset 16 |
| ; CHECK-NEXT: .cfi_offset w30, -16 |
| ; CHECK-NEXT: mov x9, x0 |
| ; CHECK-NEXT: bl __hwasan_check_x1_123 |
| ; CHECK-NEXT: mov x0, x1 |
| ; CHECK-NEXT: ldr x30, [sp], #16 |
| ; CHECK-NEXT: ret |
| call void @llvm.hwasan.check.memaccess(i8* %x0, i8* %x1, i32 123) |
| ret i8* %x1 |
| } |
| |
| define i8* @f2(i8* %x0, i8* %x1) { |
| ; CHECK: f2: |
| ; CHECK: str x30, [sp, #-16]! |
| ; CHECK-NEXT: .cfi_def_cfa_offset 16 |
| ; CHECK-NEXT: .cfi_offset w30, -16 |
| ; CHECK-NEXT: mov x9, x1 |
| ; CHECK-NEXT: bl __hwasan_check_x0_456 |
| ; CHECK-NEXT: ldr x30, [sp], #16 |
| ; CHECK-NEXT: ret |
| call void @llvm.hwasan.check.memaccess(i8* %x1, i8* %x0, i32 456) |
| ret i8* %x0 |
| } |
| |
| declare void @llvm.hwasan.check.memaccess(i8*, i8*, i32) |
| |
| ; CHECK: .section .text.hot,"axG",@progbits,__hwasan_check_x0_456,comdat |
| ; CHECK-NEXT: .type __hwasan_check_x0_456,@function |
| ; CHECK-NEXT: .weak __hwasan_check_x0_456 |
| ; CHECK-NEXT: .hidden __hwasan_check_x0_456 |
| ; CHECK-NEXT: __hwasan_check_x0_456: |
| ; CHECK-NEXT: ubfx x16, x0, #4, #52 |
| ; CHECK-NEXT: ldrb w16, [x9, x16] |
| ; CHECK-NEXT: lsr x17, x0, #56 |
| ; CHECK-NEXT: cmp w16, w17 |
| ; CHECK-NEXT: b.ne .Ltmp0 |
| ; CHECK-NEXT: ret |
| ; CHECK-NEXT: .Ltmp0: |
| ; CHECK-NEXT: stp x0, x1, [sp, #-256]! |
| ; CHECK-NEXT: stp x29, x30, [sp, #232] |
| ; CHECK-NEXT: mov x1, #456 |
| ; CHECK-NEXT: adrp x16, :got:__hwasan_tag_mismatch |
| ; CHECK-NEXT: ldr x16, [x16, :got_lo12:__hwasan_tag_mismatch] |
| ; CHECK-NEXT: br x16 |
| |
| |
| ; CHECK: .section .text.hot,"axG",@progbits,__hwasan_check_x1_123,comdat |
| ; CHECK-NEXT: .type __hwasan_check_x1_123,@function |
| ; CHECK-NEXT: .weak __hwasan_check_x1_123 |
| ; CHECK-NEXT: .hidden __hwasan_check_x1_123 |
| ; CHECK-NEXT: __hwasan_check_x1_123: |
| ; CHECK-NEXT: ubfx x16, x1, #4, #52 |
| ; CHECK-NEXT: ldrb w16, [x9, x16] |
| ; CHECK-NEXT: lsr x17, x1, #56 |
| ; CHECK-NEXT: cmp w16, w17 |
| ; CHECK-NEXT: b.ne .Ltmp1 |
| ; CHECK-NEXT: ret |
| ; CHECK-NEXT: .Ltmp1: |
| ; CHECK-NEXT: stp x0, x1, [sp, #-256]! |
| ; CHECK-NEXT: stp x29, x30, [sp, #232] |
| ; CHECK-NEXT: mov x0, x1 |
| ; CHECK-NEXT: mov x1, #123 |
| ; CHECK-NEXT: adrp x16, :got:__hwasan_tag_mismatch |
| ; CHECK-NEXT: ldr x16, [x16, :got_lo12:__hwasan_tag_mismatch] |
| ; CHECK-NEXT: br x16 |