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
@a = 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) / Address=#x08
ptr %P2 = pointer(non-local, block_id=4, offset=0) / Address=#x50
Source:
>> Jump to %#0
SOURCE MEMORY STATE
===================
NON-LOCAL BLOCKS:
Block 0 > size: 0 align: 4 alloc type: 0 alive: false address: #x00
Block 1 > size: 4 align: 4 alloc type: 0 alive: true address: #x04 const
Contents:
poison
Block 2 > size: 4 align: 4 alloc type: 0 alive: true address: #xc0 const
Contents:
poison
Block 3 > size: 15 align: 1 alloc type: 4 alive: true address: #x08
Block 4 > size: 15 align: 1 alloc type: 0 alive: true address: #x50
Contents:
1: pointer(non-local, block_id=1, offset=0), byte offset=1
0: pointer(non-local, block_id=1, offset=0), byte offset=0
*: poison
Target:
>> Jump to %#0
TARGET MEMORY STATE
===================
NON-LOCAL BLOCKS:
Block 0 > size: 0 align: 4 alloc type: 0 alive: false address: #x00
Block 1 > size: 4 align: 4 alloc type: 0 alive: true address: #x04 const
Contents:
poison
Block 2 > size: 4 align: 4 alloc type: 0 alive: true address: #xc0 const
Contents:
poison
Block 3 > size: 15 align: 1 alloc type: 4 alive: true address: #x08
Block 4 > size: 15 align: 1 alloc type: 0 alive: true address: #x50
Contents:
1: pointer(non-local, block_id=1, offset=0), byte offset=1
0: pointer(non-local, block_id=1, offset=0), byte offset=0
*: poison
Mismatch in pointer(non-local, block_id=3, offset=0)
Source value: pointer(non-local, block_id=1, offset=0), byte offset=0
Target value: pointer(non-local, block_id=2, offset=0), byte offset=0
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_KLrdgw6y_TBm4.bc"
------------------- SMT STATS -------------------
Num queries: 51
Num invalid: 0
Num skips: 0
Num trivial: 7 (12.1%)
Num timeout: 0 (0.0%)
Num errors: 0 (0.0%)
Num SAT: 29 (56.9%)
Num UNSAT: 22 (43.1%)
Alive2: Transform doesn't verify; aborting!
Transforms/ConstantMerge/merge-dbg.ll' FAILED ******************** Exit Code: 2 Command Output (stdout): -- # RUN: at line 1 /home/nlopes/alive2/build/opt-alive.sh < /bitbucket/nlopes/llvm/llvm/test/Transforms/ConstantMerge/merge-dbg.ll -passes=constmerge -S | /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/ConstantMerge/merge-dbg.ll # executed command: /home/nlopes/alive2/build/opt-alive.sh -passes=constmerge -S # .---command stderr------------ # `----------------------------- # error: command failed with exit status: 1 # executed command: /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/ConstantMerge/merge-dbg.ll # .---command stderr------------ # | FileCheck error: '<stdin>' is empty. # | FileCheck command line: /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/ConstantMerge/merge-dbg.ll # `----------------------------- # error: command failed with exit status: 2 --