Test Failure: Transforms/InstCombine/range-check.ll

Test source: git

Log:

Source: <stdin>

----------------------------------------
define i1 @test_and1(i32 %x, i32 %n) {
%0:
  %nn = and i32 %n, 2147483647
  %a = icmp sge i32 %x, 0
  %b = icmp slt i32 %x, %nn
  %c = and i1 %a, %b
  ret i1 %c
}
=>
define i1 @test_and1(i32 %x, i32 %n) {
%0:
  %nn = and i32 %n, 2147483647
  %1 = icmp ugt i32 %nn, %x
  ret i1 %1
}
Transformation seems to be correct!


----------------------------------------
define i1 @test_and1_logical(i32 %x, i32 %n) {
%0:
  %nn = and i32 %n, 2147483647
  %a = icmp sge i32 %x, 0
  %b = icmp slt i32 %x, %nn
  %c = select i1 %a, i1 %b, i1 0
  ret i1 %c
}
=>
define i1 @test_and1_logical(i32 %x, i32 %n) {
%0:
  %nn = and i32 %n, 2147483647
  %1 = icmp ugt i32 %nn, %x
  ret i1 %1
}
Transformation doesn't verify!
ERROR: Target is more poisonous than source

Example:
i32 %x = #xffffffff (4294967295, -1)
i32 %n = poison

Source:
i32 %nn = poison
i1 %a = #x0 (0)
i1 %b = poison
i1 %c = #x0 (0)

Target:
i32 %nn = poison
i1 %1 = poison
Source value: #x0 (0)
Target value: poison


------------------- SMT STATS -------------------
Num queries: 6
Num invalid: 0
Num skips:   0
Num trivial: 5 (45.5%)
Num timeout: 0 (0.0%)
Num errors:  0 (0.0%)
Num SAT:     3 (50.0%)
Num UNSAT:   3 (50.0%)

stderr:

+ : 'RUN: at line 2'
+ /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/InstCombine/range-check.ll
+ /home/nlopes/alive2/build/opt-alive.sh -instcombine -S

Alive2: Transform doesn't verify; aborting!
FileCheck error: '<stdin>' is empty.
FileCheck command line:  /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/InstCombine/range-check.ll

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