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