forked from OSchip/llvm-project
28 lines
1013 B
LLVM
28 lines
1013 B
LLVM
; Test kernel hwasan instrumentation.
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;
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; RUN: opt < %s -hwasan -hwasan-kernel=1 -S | FileCheck %s --allow-empty --check-prefixes=KERNEL
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; RUN: opt < %s -hwasan -hwasan-mapping-offset=12345678 -S | FileCheck %s --check-prefixes=OFFSET
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64--linux-android"
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define i8 @test_load(i8* %a) sanitize_hwaddress {
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; OFFSET-LABEL: @test_load(
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; OFFSET: %[[A:[^ ]*]] = ptrtoint i8* %a to i64
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; OFFSET: %[[B:[^ ]*]] = lshr i64 %[[A]], 56
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; OFFSET: %[[PTRTAG:[^ ]*]] = trunc i64 %[[B]] to i8
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; OFFSET: %[[C:[^ ]*]] = and i64 %[[A]], 72057594037927935
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; OFFSET: %[[D:[^ ]*]] = lshr i64 %[[C]], 4
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; OFFSET: %[[D1:[^ ]*]] = add i64 %[[D]], 12345678
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; OFFSET: %[[E:[^ ]*]] = inttoptr i64 %[[D1]] to i8*
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; OFFSET: %[[MEMTAG:[^ ]*]] = load i8, i8* %[[E]]
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; OFFSET: %[[F:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[MEMTAG]]
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; OFFSET: br i1 %[[F]],
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entry:
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%b = load i8, i8* %a, align 4
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ret i8 %b
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}
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; KERNEL-NOT: call void @__hwasan_init
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