1; Test that the coverage guards have proper comdat 2; Make sure asan does not instrument __sancov_gen_ 3 4; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=3 -sanitizer-coverage-trace-pc-guard -S | FileCheck %s 5; RUN: opt < %s -passes='module(require<asan-globals-md>,sancov-module,asan)' -sanitizer-coverage-level=3 -sanitizer-coverage-trace-pc-guard -S | FileCheck %s 6target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 7target triple = "x86_64-unknown-linux-gnu" 8$Foo = comdat any 9; Function Attrs: uwtable 10define linkonce_odr void @Foo() comdat { 11entry: 12 ret void 13} 14 15define linkonce_odr void @Bar() { 16entry: 17 ret void 18} 19 20; CHECK: @__sancov_gen_ = private global [1 x i32] zeroinitializer, section "__sancov_guards", comdat($Foo) 21; CHECK: @__sancov_gen_.1 = private global [1 x i32] zeroinitializer, section "__sancov_guards" 22