Test source: git
Source: <stdin> ---------------------------------------- define i1 @PR1738(double %x, double %y) { %0: %cmp1 = fcmp ord double %x, 0.000000 %cmp2 = fcmp ord double %y, 0.000000 %and = and i1 %cmp1, %cmp2 ret i1 %and } => define i1 @PR1738(double %x, double %y) { %0: %1 = fcmp ord double %x, %y ret i1 %1 } Transformation seems to be correct! ---------------------------------------- define i1 @PR1738_logical(double %x, double %y) { %0: %cmp1 = fcmp ord double %x, 0.000000 %cmp2 = fcmp ord double %y, 0.000000 %and = select i1 %cmp1, i1 %cmp2, i1 0 ret i1 %and } => define i1 @PR1738_logical(double %x, double %y) { %0: %1 = fcmp ord double %x, %y ret i1 %1 } Transformation doesn't verify! ERROR: Target is more poisonous than source Example: double %x = NaN double %y = poison Source: i1 %cmp1 = #x0 (0) i1 %cmp2 = poison i1 %and = #x0 (0) Target: i1 %1 = poison Source value: #x0 (0) Target value: poison ------------------- SMT STATS ------------------- Num queries: 5 Num invalid: 0 Num skips: 0 Num trivial: 6 (54.5%) Num timeout: 0 (0.0%) Num errors: 0 (0.0%) Num SAT: 3 (60.0%) Num UNSAT: 2 (40.0%)
+ : 'RUN: at line 2' + /home/nlopes/alive2/build/opt-alive.sh -instcombine -S + /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/InstCombine/and-fcmp.ll 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/and-fcmp.ll