File: diag_mismatch.ll

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llvm-toolchain-20 1%3A20.1.8-1~exp1
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; RUN: llvm-profdata merge %S/Inputs/diag.proftext -o %t.profdata
; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -S 2>&1 | FileCheck %s

; CHECK: warning: {{.+}}: function control flow change detected (hash mismatch) foo Hash = 742261418966908927 up to 10000 count discarded

target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

define i32 @foo() {
entry:
  ret i32 0
}