1; Ensure that we terminate with a useful error message (instead of crash) if the 2; user declares `__sancov_lowest_stack` with an unexpected type. 3; RUN: not opt < %s -sancov -sanitizer-coverage-level=1 \ 4; RUN: -sanitizer-coverage-stack-depth -S 2>&1 -enable-new-pm=0 | FileCheck %s 5; RUN: not opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=1 \ 6; RUN: -sanitizer-coverage-stack-depth -S 2>&1 | FileCheck %s 7; RUN: not opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=1 \ 8; RUN: -sanitizer-coverage-stack-depth -force-opaque-pointers -S 2>&1 | FileCheck %s 9 10target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 11target triple = "x86_64-unknown-linux-gnu" 12 13; Wrong type: i32 instead of expected i64 14@__sancov_lowest_stack = thread_local global i32 0 15 16; CHECK: error: '__sancov_lowest_stack' should not be declared by the user 17