Test source: git
Comments: LLVM PR51845
Source: <stdin> -- 1. ModuleToFunctionPassAdaptor -- 1. PassManager<Function> : Skipping NOP -- 2. RequireAnalysisPass<DominatorTreeAnalysis, Function> : Skipping NOP -- 3. RequireAnalysisPass<DominatorTreeAnalysis, Function> : Skipping NOP -- 4. MergeICmpsPass ---------------------------------------- define i1 @opeq1(ptr nocapture nowrite dereferenceable(8) %a, ptr nocapture nowrite dereferenceable(8) %b) nofree zeroext { entry: %#0 = load i32, ptr nocapture nowrite dereferenceable(8) %a, align 4 %#1 = load i32, ptr nocapture nowrite dereferenceable(8) %b, align 4 %cmp.i = icmp eq i32 %#0, %#1 br i1 %cmp.i, label %land.rhs.i, label %opeq1.exit land.rhs.i: %second.i = gep inbounds ptr nocapture nowrite dereferenceable(8) %a, 8 x i64 0, 1 x i64 4 %#2 = load i32, ptr %second.i, align 4 %second2.i = gep inbounds ptr nocapture nowrite dereferenceable(8) %b, 8 x i64 0, 1 x i64 4 %#3 = load i32, ptr %second2.i, align 4 %cmp3.i = icmp eq i32 %#2, %#3 br label %opeq1.exit opeq1.exit: %#4 = phi i1 [ 0, %entry ], [ %cmp3.i, %land.rhs.i ] ret i1 %#4 } Transformation seems to be correct! (syntactically equal) -- 5. MergeICmpsPass ---------------------------------------- define i1 @opeq1(ptr nocapture nowrite dereferenceable(8) %a, ptr nocapture nowrite dereferenceable(8) %b) nofree zeroext { entry: %#0 = load i32, ptr nocapture nowrite dereferenceable(8) %a, align 4 %#1 = load i32, ptr nocapture nowrite dereferenceable(8) %b, align 4 %cmp.i = icmp eq i32 %#0, %#1 br i1 %cmp.i, label %land.rhs.i, label %opeq1.exit land.rhs.i: %second.i = gep inbounds ptr nocapture nowrite dereferenceable(8) %a, 8 x i64 0, 1 x i64 4 %#2 = load i32, ptr %second.i, align 4 %second2.i = gep inbounds ptr nocapture nowrite dereferenceable(8) %b, 8 x i64 0, 1 x i64 4 %#3 = load i32, ptr %second2.i, align 4 %cmp3.i = icmp eq i32 %#2, %#3 br label %opeq1.exit opeq1.exit: %#4 = phi i1 [ 0, %entry ], [ %cmp3.i, %land.rhs.i ] ret i1 %#4 } => declare i32 @memcmp(nocapture ptr, nocapture ptr, i64) nofree willreturn memory(argmem: read) define i1 @opeq1(ptr nocapture nowrite dereferenceable(8) %a, ptr nocapture nowrite dereferenceable(8) %b) nofree zeroext { entry+land.rhs.i: %memcmp = memcmp ptr nocapture nowrite dereferenceable(8) %a, ptr nocapture nowrite dereferenceable(8) %b, i64 8 %#0 = icmp eq i32 %memcmp, 0 br label %opeq1.exit opeq1.exit: ret i1 %#0 } Transformation seems to be correct! -- 6. DominatorTreeVerifierPass ---------------------------------------- declare i32 @memcmp(nocapture ptr, nocapture ptr, i64) nofree willreturn memory(argmem: read) define i1 @opeq1(ptr nocapture nowrite dereferenceable(8) %a, ptr nocapture nowrite dereferenceable(8) %b) nofree zeroext { entry+land.rhs.i: %memcmp = memcmp ptr nocapture nowrite dereferenceable(8) %a, ptr nocapture nowrite dereferenceable(8) %b, i64 8 %#0 = icmp eq i32 %memcmp, 0 br label %opeq1.exit opeq1.exit: ret i1 %#0 } Transformation seems to be correct! (syntactically equal) -- 7. DominatorTreeVerifierPass ---------------------------------------- declare i32 @memcmp(nocapture ptr, nocapture ptr, i64) nofree willreturn memory(argmem: read) define i1 @opeq1(ptr nocapture nowrite dereferenceable(8) %a, ptr nocapture nowrite dereferenceable(8) %b) nofree zeroext { entry+land.rhs.i: %memcmp = memcmp ptr nocapture nowrite dereferenceable(8) %a, ptr nocapture nowrite dereferenceable(8) %b, i64 8 %#0 = icmp eq i32 %memcmp, 0 br label %opeq1.exit opeq1.exit: ret i1 %#0 } Transformation seems to be correct! (syntactically equal) -- 8. PassManager<Function> : Skipping NOP -- 9. PassManager<Function> : Skipping NOP -- 10. RequireAnalysisPass<DominatorTreeAnalysis, Function> : Skipping NOP -- 11. RequireAnalysisPass<DominatorTreeAnalysis, Function> : Skipping NOP -- 12. MergeICmpsPass ---------------------------------------- define i1 @opeq1_inverse(ptr nocapture nowrite dereferenceable(8) %a, ptr nocapture nowrite dereferenceable(8) %b) nofree zeroext { entry: %first.i = gep inbounds ptr nocapture nowrite dereferenceable(8) %a, 8 x i64 0, 1 x i64 4 %#0 = load i32, ptr %first.i, align 4 %first1.i = gep inbounds ptr nocapture nowrite dereferenceable(8) %b, 8 x i64 0, 1 x i64 4 %#1 = load i32, ptr %first1.i, align 4 %cmp.i = icmp eq i32 %#0, %#1 br i1 %cmp.i, label %land.rhs.i, label %opeq1.exit land.rhs.i: %#2 = load i32, ptr nocapture nowrite dereferenceable(8) %a, align 4 %#3 = load i32, ptr nocapture nowrite dereferenceable(8) %b, align 4 %cmp3.i = icmp eq i32 %#2, %#3 br label %opeq1.exit opeq1.exit: %#4 = phi i1 [ 0, %entry ], [ %cmp3.i, %land.rhs.i ] ret i1 %#4 } Transformation seems to be correct! (syntactically equal) -- 13. MergeICmpsPass ---------------------------------------- define i1 @opeq1_inverse(ptr nocapture nowrite dereferenceable(8) %a, ptr nocapture nowrite dereferenceable(8) %b) nofree zeroext { entry: %first.i = gep inbounds ptr nocapture nowrite dereferenceable(8) %a, 8 x i64 0, 1 x i64 4 %#0 = load i32, ptr %first.i, align 4 %first1.i = gep inbounds ptr nocapture nowrite dereferenceable(8) %b, 8 x i64 0, 1 x i64 4 %#1 = load i32, ptr %first1.i, align 4 %cmp.i = icmp eq i32 %#0, %#1 br i1 %cmp.i, label %land.rhs.i, label %opeq1.exit land.rhs.i: %#2 = load i32, ptr nocapture nowrite dereferenceable(8) %a, align 4 %#3 = load i32, ptr nocapture nowrite dereferenceable(8) %b, align 4 %cmp3.i = icmp eq i32 %#2, %#3 br label %opeq1.exit opeq1.exit: %#4 = phi i1 [ 0, %entry ], [ %cmp3.i, %land.rhs.i ] ret i1 %#4 } => declare i32 @memcmp(nocapture ptr, nocapture ptr, i64) nofree willreturn memory(argmem: read) define i1 @opeq1_inverse(ptr nocapture nowrite dereferenceable(8) %a, ptr nocapture nowrite dereferenceable(8) %b) nofree zeroext { land.rhs.i+entry: %memcmp = memcmp ptr nocapture nowrite dereferenceable(8) %a, ptr nocapture nowrite dereferenceable(8) %b, i64 8 %#0 = icmp eq i32 %memcmp, 0 br label %opeq1.exit opeq1.exit: ret i1 %#0 } Transformation doesn't verify! (unsound) ERROR: Target is more poisonous than source Example: ptr nocapture nowrite dereferenceable(8) %a = pointer(non-local, block_id=1, offset=4, attrs=3) / Address=#x0c ptr nocapture nowrite dereferenceable(8) %b = pointer(non-local, block_id=1, offset=0, attrs=3) / Address=#x08 Source: ptr %first.i = pointer(non-local, block_id=1, offset=8, attrs=3) / Address=#x10 i32 %#0 = #x02020201 (33686017) ptr %first1.i = pointer(non-local, block_id=1, offset=4, attrs=3) / Address=#x0c i32 %#1 = #x01010102 (16843010) i1 %cmp.i = #x0 (0) >> Jump to %opeq1.exit i1 %#4 = #x0 (0) SOURCE MEMORY STATE =================== NON-LOCAL BLOCKS: Block 0 > size: 0 align: 1 alloc type: 0 alive: false address: 0 Block 1 > size: 13 align: 8 alloc type: 0 alive: true address: 8 Contents: 6: #x01 3: null, byte offset=0 7: #x01 9: #x02 10: #x02 0: #x02 8: #x01 1: poison 4: #x02 11: #x02 5: #x01 *: poison Block 2 > size: 0 align: 1 alloc type: 0 alive: true address: 8 Target: i32 %memcmp = poison i1 %#0 = poison >> Jump to %opeq1.exit Source value: #x0 (0) Target value: poison Pass: MergeICmpsPass 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=require<domtree>,mergeicmps,verify<domtree>' '-mtriple=x86_64-unknown-unknown' '-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_X4PbNO92_tLJw.bc" ------------------- SMT STATS ------------------- Num queries: 40 Num invalid: 0 Num skips: 0 Num trivial: 13 (24.5%) Num timeout: 0 (0.0%) Num errors: 0 (0.0%) Num SAT: 26 (65.0%) Num UNSAT: 14 (35.0%) Alive2: Transform doesn't verify; aborting!
RUN: at line 2: /home/nlopes/alive2/build/opt-alive.sh < /bitbucket/nlopes/llvm/llvm/test/Transforms/MergeICmps/X86/pair-int32-int32.ll -passes='require<domtree>,mergeicmps,verify<domtree>' -mtriple=x86_64-unknown-unknown -S | /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/MergeICmps/X86/pair-int32-int32.ll --check-prefix=X86 + /home/nlopes/alive2/build/opt-alive.sh '-passes=require<domtree>,mergeicmps,verify<domtree>' -mtriple=x86_64-unknown-unknown -S + /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/MergeICmps/X86/pair-int32-int32.ll --check-prefix=X86 FileCheck error: '<stdin>' is empty. FileCheck command line: /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/MergeICmps/X86/pair-int32-int32.ll --check-prefix=X86