Test Failure: Transforms/InstSimplify/shift-knownbits.ll

Test source: git

Log:

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

----------------------------------------
define i32 @shl_amount_is_known_bogus(i32 %a, i32 %b) {
#0:
  %or = or i32 %b, 32
  %shl = shl i32 %a, %or
  ret i32 %shl
}
Transformation seems to be correct! (syntactically equal)

-- 3. InstSimplifyPass

----------------------------------------
define i32 @shl_amount_is_known_bogus(i32 %a, i32 %b) {
#0:
  %or = or i32 %b, 32
  %shl = shl i32 %a, %or
  ret i32 %shl
}
=>
define i32 @shl_amount_is_known_bogus(i32 %a, i32 %b) {
#0:
  ret i32 poison
}
Transformation seems to be correct!

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

----------------------------------------
define i32 @shl_amount_is_known_bogus_range_attr(i32 %a, i32 %b) {
#0:
  %shl = shl i32 %a, %b
  ret i32 %shl
}
Transformation seems to be correct! (syntactically equal)

-- 7. InstSimplifyPass

----------------------------------------
define i32 @shl_amount_is_known_bogus_range_attr(i32 %a, i32 %b) {
#0:
  %shl = shl i32 %a, %b
  ret i32 %shl
}
=>
define i32 @shl_amount_is_known_bogus_range_attr(i32 %a, i32 %b) {
#0:
  ret i32 poison
}
Transformation doesn't verify! (unsound)
ERROR: Target is more poisonous than source

Example:
i32 %a = #x00000000 (0)	[based on undef value]
i32 %b = #x00000000 (0)

Source:
i32 %shl = #x00000000 (0)

Target:
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' '-data-layout=E' '-tv-smt-to=20000' '-tv-report-dir=/home/nlopes/alive2/build/logs' '-tv-smt-stats'
Wrote bitcode to: "/home/nlopes/alive2/build/logs/in_a2RSmuqy_9N4D.bc"


------------------- SMT STATS -------------------
Num queries: 9
Num invalid: 0
Num skips:   0
Num trivial: 12 (57.1%)
Num timeout: 0 (0.0%)
Num errors:  0 (0.0%)
Num SAT:     9 (100.0%)
Num UNSAT:   0 (0.0%)
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/shift-knownbits.ll -passes=instsimplify -S -data-layout="E" | /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/InstSimplify/shift-knownbits.ll --check-prefixes=CHECK,BIGENDIAN
+ /home/nlopes/alive2/build/opt-alive.sh -passes=instsimplify -S -data-layout=E
+ /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/InstSimplify/shift-knownbits.ll --check-prefixes=CHECK,BIGENDIAN

FileCheck error: '<stdin>' is empty.
FileCheck command line:  /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/InstSimplify/shift-knownbits.ll --check-prefixes=CHECK,BIGENDIAN

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