llvm/test/Transforms/PGOProfile/consecutive-zeros.ll

; REQUIRES: asserts
; RUN: llvm-profdata merge %S/Inputs/consecutive-zeros.proftext -o %t.profdata
; RUN: opt < %s -debug -pgo-instr-use -pgo-memop-opt -pgo-memop-count-threshold=0 -pgo-memop-percent-threshold=0 -pgo-test-profile-file=%t.profdata -S 2>&1 | FileCheck %s

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 void @foo(i8* %dst, i8* %src, i32* %a, i32 %n) {
; CHECK: Invalid Profile
entry:
  br label %for.cond

for.cond:
  %i.0 = phi i32 [ 0, %entry ], [ %inc5, %for.inc4 ]
  %cmp = icmp slt i32 %i.0, %n
  br i1 %cmp, label %for.body, label %for.end6

for.body:
  br label %for.cond1

for.cond1:
  %j.0 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
  %idx.ext = sext i32 %i.0 to i64
  %add.ptr = getelementptr inbounds i32, i32* %a, i64 %idx.ext
  %0 = load i32, i32* %add.ptr, align 4
  %cmp2 = icmp slt i32 %j.0, %0
  br i1 %cmp2, label %for.body3, label %for.end

for.body3:
  %add = add nsw i32 %i.0, 1
  %conv = sext i32 %add to i64
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %conv, i1 false)
  %memcmp = call i32 @memcmp(i8* %dst, i8* %src, i64 %conv)
  %bcmp = call i32 @bcmp(i8* %dst, i8* %src, i64 %conv)
  br label %for.inc

for.inc:
  %inc = add nsw i32 %j.0, 1
  br label %for.cond1

for.end:
  br label %for.inc4

for.inc4:
  %inc5 = add nsw i32 %i.0, 1
  br label %for.cond

for.end6:
  ret void
}

declare void @llvm.lifetime.start(i64, i8* nocapture)

declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i1)

declare i32 @memcmp(i8*, i8*, i64)
declare i32 @bcmp(i8*, i8*, i64)

declare void @llvm.lifetime.end(i64, i8* nocapture)