<html>
    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [Attributor] opt crashes with "opt -O1 -attributor-enable=all": Assertion Assertion `Fn && "Expected callee when call argument is replaced!"' failed"
   href="https://bugs.llvm.org/show_bug.cgi?id=50683">50683</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[Attributor] opt crashes with "opt -O1 -attributor-enable=all": Assertion Assertion `Fn && "Expected callee when call argument is replaced!"' failed
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>libraries
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>enhancement
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Interprocedural Optimizations
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>zequanwu@google.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>$ cat crash.ll
source_filename = "crash.ll"
target datalayout =
"e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@g = internal constant { [2 x i8*] } { [2 x i8*] [i8* bitcast (void (i8***)*
@f1 to i8*), i8* bitcast (void (i1 (i8*)*)* @f2 to i8*)] }

define internal void @f1(i8*** %a) {
entry:
  %x = getelementptr { [2 x i8*] }, { [2 x i8*] }* @g, i32 0, i32 0, i32 0
  store i8** %x , i8*** %a, align 8
  ret void
}

define internal void @f2(i1 (i8*)* %a) {
cont461:
  %c1 = bitcast i1 (i8*)* %a to i8*
  call void @f3(i8* %c1, i1 (i8*)* %a)
  ret void
}

define internal void @f3(i8* %a1, i1 (i8*)* %a) {
entry:
  %call20 = call i1 @f9()
  br i1 %call20, label %land.lhs.true, label %if.end40

land.lhs.true:
  call i1 %a(i8* %a1)
  br label %if.end40

if.end40:
  ret void
}

define linkonce_odr i1 @f9() {
entry:
  ret i1 false
}

Needs to enable new pm (-enable-new-pm=1) if not enabled by default.</pre>
        </div>
      </p>


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