llvm-project/llvm/test/Instrumentation/AddressSanitizer/local_alias.ll

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; RUN: opt < %s -asan -asan-module -asan-use-private-alias=1 -S | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
@a = internal global [2 x i32] zeroinitializer, align 4
; Check that we generate internal alias and odr indicator symbols for global to be protected.
; CHECK: @__odr_asan_gen_a = internal global i8 0, align 1
; CHECK: @"a<stdin>" = internal alias { [2 x i32], [56 x i8] }, { [2 x i32], [56 x i8] }* @a
; Function Attrs: nounwind sanitize_address uwtable
define i32 @foo(i32 %M) #0 {
entry:
%M.addr = alloca i32, align 4
store i32 %M, i32* %M.addr, align 4
store volatile i32 6, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @a, i64 2, i64 0), align 4
%0 = load i32, i32* %M.addr, align 4
%idxprom = sext i32 %0 to i64
%arrayidx = getelementptr inbounds [2 x i32], [2 x i32]* @a, i64 0, i64 %idxprom
%1 = load volatile i32, i32* %arrayidx, align 4
ret i32 %1
}