Test Failure: Transforms/InstSimplify/phi.ll

Test source: git

Log:

Source: <stdin>
-- 1. ModuleToFunctionPassAdaptor
-- 1. PassManager<Function> : Skipping NOP
-- 2. InstSimplifyPass

----------------------------------------
define i1 @test1(i32 %x) {
#0:
  br i1 1, label %a, label %b

b:
  %bb = or i32 %x, 10
  br label %c

a:
  %aa = or i32 %x, 10
  br label %c

c:
  %cc = phi i32 [ %bb, %b ], [ %aa, %a ]
  %d = urem i32 %cc, 2
  %e = icmp eq i32 %d, 0
  ret i1 %e
}
Transformation seems to be correct! (syntactically equal)

-- 3. InstSimplifyPass

----------------------------------------
define i1 @test1(i32 %x) {
#0:
  br i1 1, label %a, label %b

b:
  %bb = or i32 %x, 10
  br label %c

a:
  %aa = or i32 %x, 10
  br label %c

c:
  %cc = phi i32 [ %bb, %b ], [ %aa, %a ]
  %d = urem i32 %cc, 2
  %e = icmp eq i32 %d, 0
  ret i1 %e
}
Transformation seems to be correct! (syntactically equal)

-- 4. PassManager<Function> : Skipping NOP
-- 5. PassManager<Function> : Skipping NOP
-- 6. InstSimplifyPass

----------------------------------------
define i32 @lcssa-phi(i32 %x) {
entry:
  br label %end

end:
  %counter.lcssa = phi i32 [ %x, %entry ]
  ret i32 %counter.lcssa
}
Transformation seems to be correct! (syntactically equal)

-- 7. InstSimplifyPass

----------------------------------------
define i32 @lcssa-phi(i32 %x) {
entry:
  br label %end

end:
  %counter.lcssa = phi i32 [ %x, %entry ]
  ret i32 %counter.lcssa
}
=>
define i32 @lcssa-phi(i32 %x) {
entry:
  br label %end

end:
  ret i32 %x
}
Transformation seems to be correct!

-- 8. PassManager<Function> : Skipping NOP
-- 9. PassManager<Function> : Skipping NOP
-- 10. InstSimplifyPass

----------------------------------------
define i32 @poison(i1 %cond, i32 %v) {
#0:
  br i1 %cond, label %A, label %B

B:
  br label %EXIT

A:
  br label %EXIT

EXIT:
  %w = phi i32 [ %v, %A ], [ poison, %B ]
  ret i32 %w
}
Transformation seems to be correct! (syntactically equal)

-- 11. InstSimplifyPass

----------------------------------------
define i32 @poison(i1 %cond, i32 %v) {
#0:
  br i1 %cond, label %A, label %B

B:
  br label %EXIT

A:
  br label %EXIT

EXIT:
  %w = phi i32 [ %v, %A ], [ poison, %B ]
  ret i32 %w
}
=>
define i32 @poison(i1 %cond, i32 %v) {
#0:
  br i1 %cond, label %A, label %B

B:
  br label %EXIT

A:
  br label %EXIT

EXIT:
  ret i32 %v
}
Transformation seems to be correct!

-- 12. PassManager<Function> : Skipping NOP
-- 13. PassManager<Function> : Skipping NOP
-- 14. InstSimplifyPass

----------------------------------------
define i32 @undef(i1 %cond, i32 %v) {
#0:
  br i1 %cond, label %A, label %B

B:
  br label %EXIT

A:
  br label %EXIT

EXIT:
  %w = phi i32 [ %v, %A ], [ undef, %B ]
  ret i32 %w
}
Transformation seems to be correct! (syntactically equal)

-- 15. InstSimplifyPass

----------------------------------------
define i32 @undef(i1 %cond, i32 %v) {
#0:
  br i1 %cond, label %A, label %B

B:
  br label %EXIT

A:
  br label %EXIT

EXIT:
  %w = phi i32 [ %v, %A ], [ undef, %B ]
  ret i32 %w
}
=>
define i32 @undef(i1 %cond, i32 %v) {
#0:
  br i1 %cond, label %A, label %B

B:
  br label %EXIT

A:
  br label %EXIT

EXIT:
  ret i32 %v
}
Transformation doesn't verify! (unsound)
ERROR: Target is more poisonous than source

Example:
i1 %cond = #x0 (0)
i32 %v = poison

Source:
  >> Jump to %B
  >> Jump to %EXIT
i32 %w = #x00000000 (0)	[based on undef value]

Target:
  >> Jump to %B
  >> Jump to %EXIT
Source value: #x00000000 (0)
Target value: poison

Pass: InstSimplifyPass
Command line: '/home/nlopes/llvm/build/bin/opt' '-load=/home/nlopes/alive2/build/tv/tv.so' '-load-pass-plugin=/home/nlopes/alive2/build/tv/tv.so' '-tv-exit-on-error' '-passes=instsimplify' '-S' '-tv-smt-to=20000' '-tv-report-dir=/home/nlopes/alive2/build/logs' '-tv-smt-stats'
Wrote bitcode to: "/home/nlopes/alive2/build/logs/in_Cbj5F8Q7_1MYv.bc"


------------------- SMT STATS -------------------
Num queries: 17
Num invalid: 0
Num skips:   0
Num trivial: 12 (41.4%)
Num timeout: 0 (0.0%)
Num errors:  0 (0.0%)
Num SAT:     11 (64.7%)
Num UNSAT:   6 (35.3%)
Alive2: Transform doesn't verify; aborting!

stderr:

RUN: at line 2: /home/nlopes/alive2/build/opt-alive.sh < /bitbucket/nlopes/llvm/llvm/test/Transforms/InstSimplify/phi.ll -passes=instsimplify -S | /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/InstSimplify/phi.ll
+ /home/nlopes/alive2/build/opt-alive.sh -passes=instsimplify -S
+ /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/InstSimplify/phi.ll

FileCheck error: '<stdin>' is empty.
FileCheck command line:  /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/InstSimplify/phi.ll

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