1; RUN: llvm-profdata merge %S/Inputs/diag.proftext -o %t.profdata 2; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -S 2>&1 | FileCheck %s 3 4; CHECK: warning: {{.+}}: function control flow change detected (hash mismatch) foo Hash = 742261418966908927 up to 10000 count discarded 5 6target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 7target triple = "x86_64-unknown-linux-gnu" 8 9define i32 @foo() { 10entry: 11 ret i32 0 12} 13