Test source: git
Source: <stdin> -- 1. ConstantMergePass -- 2. ConstantMergePass ---------------------------------------- @a = constant 4 bytes, align 4 @b = constant 4 bytes, align 4 define void @test1(ptr %P1, ptr %P2) { #init: store i32 1, ptr @a, align 4 store i32 1, ptr @b, align 4 br label %0 %0: store ptr @a, ptr %P1, align 8 store ptr @b, ptr %P2, align 8 ret void } => @b = constant 4 bytes, align 4 define void @test1(ptr %P1, ptr %P2) { #init: store i32 1, ptr @b, align 4 br label %0 %0: store ptr @b, ptr %P1, align 8 store ptr @b, ptr %P2, align 8 ret void } Transformation doesn't verify! (unsound) ERROR: Mismatch in memory Example: ptr %P1 = pointer(non-local, block_id=3, offset=0) ptr %P2 = pointer(non-local, block_id=3, offset=0) Source: >> Jump to %0 SOURCE MEMORY STATE =================== NON-LOCAL BLOCKS: Block 0 > size: 0 align: 4 alloc type: 0 address: 0 Block 1 > size: 4 align: 4 alloc type: 0 address: 4 const Block 2 > size: 4 align: 4 alloc type: 0 address: 8 const Block 3 > size: 12 align: 1 alloc type: 0 address: 128 Block 4 > size: 0 align: 1 alloc type: 0 address: 1 Target: >> Jump to %0 Mismatch in pointer(non-local, block_id=1, offset=0) Source value: #x00000001 Target value: poison Pass: ConstantMergePass 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=constmerge' '-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_mTT7NUYs_ELPU.bc" ------------------- SMT STATS ------------------- Num queries: 42 Num invalid: 0 Num skips: 0 Num trivial: 7 (14.3%) Num timeout: 0 (0.0%) Num errors: 0 (0.0%) Num SAT: 24 (57.1%) Num UNSAT: 18 (42.9%) Alive2: Transform doesn't verify; aborting!
+ : 'RUN: at line 1' + /home/nlopes/alive2/build/opt-alive.sh -passes=constmerge -S + /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/ConstantMerge/merge-dbg.ll FileCheck error: '<stdin>' is empty. FileCheck command line: /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/ConstantMerge/merge-dbg.ll