Test source: git
Source: <stdin> ---------------------------------------- define void @test(i64 %a, i64 %b, ptr %retptr) { #0: %d = sdiv i64 %a, %b store i64 %d, ptr %retptr, align 8 ret void } => define void @test(i64 %a, i64 %b, ptr %retptr) { #0: %#4 = or i64 %a, %b %#5 = and i64 %#4, -4294967296 %#6 = icmp eq i64 %#5, 0 br i1 %#6, label %#2, label %#1 #1: %#7 = sdiv i64 %a, %b br label %#3 #2: %#8 = trunc i64 %b to i32 %#9 = trunc i64 %a to i32 %#10 = udiv i32 %#9, %#8 %#11 = zext i32 %#10 to i64 br label %#3 #3: %#12 = phi i64 [ %#11, %#2 ], [ %#7, %#1 ] store i64 %#12, ptr %retptr, align 8 ret void } Transformation doesn't verify! (unsound) ERROR: Source is more defined than target Example: i64 %a = poison i64 %b = #x0000000000000008 (8) ptr %retptr = pointer(non-local, block_id=1, offset=0) Source: i64 %d = poison SOURCE MEMORY STATE =================== NON-LOCAL BLOCKS: Block 0 > size: 0 align: 8 alloc type: 0 alive: false address: 0 Block 1 > size: 8 align: 1 alloc type: 0 alive: true address: 8 Target: i64 %#4 = poison i64 %#5 = poison i1 %#6 = poison UB triggered on br Pass: Command line: '/home/nlopes/llvm/build/bin/opt' '-load=/home/nlopes/alive2/build/tv/tv.so' '-tv-exit-on-error' '-tv' '-S' '-codegenprepare' '-tv' '-tv-smt-to=20000' '-tv-report-dir=/home/nlopes/alive2/build/logs' '-tv-smt-stats' ------------------- SMT STATS ------------------- Num queries: 30 Num invalid: 0 Num skips: 0 Num trivial: 2 (6.2%) Num timeout: 0 (0.0%) Num errors: 0 (0.0%) Num SAT: 23 (76.7%) Num UNSAT: 7 (23.3%) Alive2: Transform doesn't verify; aborting!
RUN: at line 1: /home/nlopes/alive2/build/opt-alive.sh -S -codegenprepare < /bitbucket/nlopes/llvm/llvm/test/Transforms/CodeGenPrepare/NVPTX/bypass-slow-div-not-exact.ll | /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/CodeGenPrepare/NVPTX/bypass-slow-div-not-exact.ll + /home/nlopes/alive2/build/opt-alive.sh -S -codegenprepare + /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/CodeGenPrepare/NVPTX/bypass-slow-div-not-exact.ll FileCheck error: '<stdin>' is empty. FileCheck command line: /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/CodeGenPrepare/NVPTX/bypass-slow-div-not-exact.ll