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1; This test checks that we are not instrumenting unnecessary globals2; (llvm.metadata, init_array sections, and other llvm internal globals).3; RUN: opt < %s -passes=asan -S | FileCheck %s4 5target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"6target triple = "x86_64-unknown-linux-gnu"7 8; Function Attrs: nounwind uwtable9define internal void @_ZL3foov() #0 {10entry:11 ret void12}13 14@__call_foo = global ptr @_ZL3foov, section ".preinit_array", align 815@__call_foo_2 = global ptr @_ZL3foov, section ".init_array", align 816@__call_foo_3 = global ptr @_ZL3foov, section ".fini_array", align 817 18; CHECK-NOT: asan_gen{{.*}}__call_foo19 20; Function Attrs: nounwind uwtable21define i32 @main() #0 {22entry:23 %retval = alloca i32, align 424 store i32 0, ptr %retval, align 425 ret i32 026}27 28@.str_noinst = private unnamed_addr constant [4 x i8] c"aaa\00", section "llvm.metadata"29@.str_noinst_prof = private unnamed_addr constant [4 x i8] c"aaa\00", section "__llvm_prf_data"30@.str_inst = private unnamed_addr constant [4 x i8] c"aaa\00"31 32; CHECK-NOT: {{asan_gen.*str_noinst}}33; CHECK-NOT: {{asan_gen.*str_noinst_prof}}34; CHECK: {{asan_gen.*str_inst}}35; CHECK: @asan.module_ctor36