llvm-mirror/pr35843.ll at 5ff8f4151cd501aab6e077e0c2beb4aa47010e6b - llvm-mirror - Git.je (Gitea)

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Davide Italiano 1e4933df39 [BasicAA] Stop crashing when dealing with pointers > 64 bits.

An alternative (and probably better) fix would be that of
making `Scale` an APInt, and there's a patch floating around
to do this. As we're still discussing it, at least stop crashing
in the meanwhile (added bonus, we now have a regression test for
this situation).

Fixes PR35843.

Thanks to Eli for suggesting the fix and Simon for reporting and
reducing the bug.

llvm-svn: 322467

2018-01-15 01:40:18 +00:00

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 ; RUN: opt %s -aa-eval -disable-output 2>&1 | FileCheck %s
 ; CHECK: 6 Total Alias Queries Performed
 ; CHECK-NEXT: 6 no alias responses
 define void @patatino() {
 BB:
   %G22 = getelementptr i1*, i1** undef, i8 -1
   %B1 = mul i66 undef, 9223372036854775808
   %G45 = getelementptr i1**, i1*** undef, i66 %B1
   ret void
 }