Test Failure: Transforms/AlignmentFromAssumptions/simple32.ll

Test source: git

Log:

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

----------------------------------------
define i32 @foo(ptr nocapture %a) nofree memory(read) {
entry:
  assume_align ptr nocapture %a, i64 32
  assume i1 1
  %#0 = load i32, ptr nocapture %a, align 4
  ret i32 %#0
}
Transformation seems to be correct! (syntactically equal)

-- 3. AlignmentFromAssumptionsPass

----------------------------------------
define i32 @foo(ptr nocapture %a) nofree memory(read) {
entry:
  assume_align ptr nocapture %a, i64 32
  %#0 = load i32, ptr nocapture %a, align 4
  ret i32 %#0
}
=>
define i32 @foo(ptr nocapture %a) nofree memory(read) {
entry:
  assume_align ptr nocapture %a, i64 32
  %#0 = load i32, ptr nocapture %a, align 32
  ret i32 %#0
}
Transformation doesn't verify! (unsound)
ERROR: Source is more defined than target

Example:
ptr nocapture %a = pointer(non-local, block_id=1, offset=123, attrs=3) / Address=#x80

Source:
i32 %#0 = poison

SOURCE MEMORY STATE
===================
NON-LOCAL BLOCKS:
Block 0 >	size: 0	align: 4	alloc type: 0	alive: false	address: 0
Block 1 >	size: 128	align: 1	alloc type: 0	alive: true	address: 5

Target:
i32 %#0 = UB triggered!


Pass: AlignmentFromAssumptionsPass
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=alignment-from-assumptions' '-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_PrP2fxxA_8qYv.bc"


------------------- SMT STATS -------------------
Num queries: 20
Num invalid: 0
Num skips:   0
Num trivial: 1 (4.8%)
Num timeout: 0 (0.0%)
Num errors:  0 (0.0%)
Num SAT:     12 (60.0%)
Num UNSAT:   8 (40.0%)
Alive2: Transform doesn't verify; aborting!

stderr:

RUN: at line 3: /home/nlopes/alive2/build/opt-alive.sh < /bitbucket/nlopes/llvm/llvm/test/Transforms/AlignmentFromAssumptions/simple32.ll -passes=alignment-from-assumptions -S | /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/AlignmentFromAssumptions/simple32.ll
+ /home/nlopes/alive2/build/opt-alive.sh -passes=alignment-from-assumptions -S
+ /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/AlignmentFromAssumptions/simple32.ll

FileCheck error: '<stdin>' is empty.
FileCheck command line:  /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/AlignmentFromAssumptions/simple32.ll

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