Test source: git
Source: <stdin> ---------------------------------------- define <2 x i4> @vector(<2 x i4> %x, <2 x i4> %y, <2 x i4> %m) { %0: %im = xor <2 x i4> %m, { 15, 15 } %n0 = xor <2 x i4> %x, %y %n1 = and <2 x i4> %n0, %im %r = xor <2 x i4> %n1, %y ret <2 x i4> %r } => define <2 x i4> @vector(<2 x i4> %x, <2 x i4> %y, <2 x i4> %m) { %0: %n0 = xor <2 x i4> %x, %y %1 = and <2 x i4> %n0, %m %r = xor <2 x i4> %1, %x ret <2 x i4> %r } Transformation doesn't verify! (unsound) ERROR: Target's return value is more undefined Example: <2 x i4> %x = < poison, undef > <2 x i4> %y = < poison, #xa (10, -6) > <2 x i4> %m = < poison, #xf (15, -1) > Source: <2 x i4> %im = < poison, #x0 (0) > <2 x i4> %n0 = < poison, #xa (10, -6) [based on undef value] > <2 x i4> %n1 = < poison, #x0 (0) > <2 x i4> %r = < poison, #xa (10, -6) > Target: <2 x i4> %n0 = < poison, #xb (11, -5) > <2 x i4> %1 = < poison, #xb (11, -5) > <2 x i4> %r = < poison, #x0 (0) > Source value: < poison, #xa (10, -6) > Target value: < poison, #x0 (0) > Pass: ModuleToFunctionPassAdaptor 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=module(tv),function(instcombine),module(tv)' '-S' '-tv-smt-to=20000' '-tv-report-dir=/home/nlopes/alive2/build/logs' '-tv-smt-stats' ------------------- SMT STATS ------------------- Num queries: 17 Num invalid: 0 Num skips: 0 Num trivial: 14 (45.2%) Num timeout: 0 (0.0%) Num errors: 0 (0.0%) Num SAT: 16 (94.1%) Num UNSAT: 1 (5.9%) Alive2: Transform doesn't verify; aborting!
+ : 'RUN: at line 2' + /home/nlopes/alive2/build/opt-alive.sh -passes=instcombine -S + /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/InstCombine/invert-variable-mask-in-masked-merge-vector.ll FileCheck error: '<stdin>' is empty. FileCheck command line: /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/InstCombine/invert-variable-mask-in-masked-merge-vector.ll
NOTE: This test would pass if undef didn't exist!