xref: /aosp_15_r20/external/llvm/test/Instrumentation/AddressSanitizer/local_alias.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -asan -asan-module -asan-use-private-alias=1 -S | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
4*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64-unknown-linux-gnu"
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Worker@a = internal global [2 x i32] zeroinitializer, align 4
7*9880d681SAndroid Build Coastguard Worker
8*9880d681SAndroid Build Coastguard Worker; Check that we generate internal alias and odr indicator symbols for global to be protected.
9*9880d681SAndroid Build Coastguard Worker; CHECK: @__odr_asan_gen_a = internal global i8 0, align 1
10*9880d681SAndroid Build Coastguard Worker; CHECK: @"a<stdin>" = internal alias { [2 x i32], [56 x i8] }, { [2 x i32], [56 x i8] }* @a
11*9880d681SAndroid Build Coastguard Worker
12*9880d681SAndroid Build Coastguard Worker; Function Attrs: nounwind sanitize_address uwtable
13*9880d681SAndroid Build Coastguard Workerdefine i32 @foo(i32 %M) #0 {
14*9880d681SAndroid Build Coastguard Workerentry:
15*9880d681SAndroid Build Coastguard Worker  %M.addr = alloca i32, align 4
16*9880d681SAndroid Build Coastguard Worker  store i32 %M, i32* %M.addr, align 4
17*9880d681SAndroid Build Coastguard Worker  store volatile i32 6, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @a, i64 2, i64 0), align 4
18*9880d681SAndroid Build Coastguard Worker  %0 = load i32, i32* %M.addr, align 4
19*9880d681SAndroid Build Coastguard Worker  %idxprom = sext i32 %0 to i64
20*9880d681SAndroid Build Coastguard Worker  %arrayidx = getelementptr inbounds [2 x i32], [2 x i32]* @a, i64 0, i64 %idxprom
21*9880d681SAndroid Build Coastguard Worker  %1 = load volatile i32, i32* %arrayidx, align 4
22*9880d681SAndroid Build Coastguard Worker  ret i32 %1
23*9880d681SAndroid Build Coastguard Worker}
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