Test Failure: Transforms/InstCombine/intptr2.ll

Test source: git

Log:

Source: <stdin>
-- 1. ModuleToFunctionPassAdaptor
-- 1. PassManager<Function> : Skipping NOP
-- 2. InstCombinePass

----------------------------------------
define void @test1(ptr %a, ptr noread nowrite %a_end, ptr %b.i) {
entry:
  %cmp1 = icmp ult ptr %a, noread nowrite %a_end
  br i1 %cmp1, label %for.body.preheader, label %for.end

for.body.preheader:
  %b = ptrtoint ptr %b.i to i64
  br label %for.body

for.body:
  %a.addr.03 = phi ptr [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ]
  %b.addr.02 = phi i64 [ %add.int, %for.body ], [ %b, %for.body.preheader ]
  %tmp = int2ptr i64 %b.addr.02 to ptr
  %tmp1 = load float, ptr %tmp, align 4
  %mul.i = fmul float %tmp1, 42.000000
  store float %mul.i, ptr %a.addr.03, align 4
  %add = gep inbounds ptr %tmp, 4 x i64 1
  %add.int = ptrtoint ptr %add to i64
  %incdec.ptr = gep inbounds ptr %a.addr.03, 4 x i64 1
  %cmp = icmp ult ptr %incdec.ptr, noread nowrite %a_end
  br i1 %cmp, label %for.body, label %for.end

for.end:
  ret void
}
Transformation seems to be correct! (syntactically equal)

-- 3. InstCombinePass

----------------------------------------
define void @test1(ptr %a, ptr noread nowrite %a_end, ptr %b.i) {
entry:
  %cmp1 = icmp ult ptr %a, noread nowrite %a_end
  br i1 %cmp1, label %for.body.preheader, label %for.end

for.body.preheader:
  %b = ptrtoint ptr %b.i to i64
  br label %for.body

for.body:
  %a.addr.03 = phi ptr [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ]
  %b.addr.02 = phi i64 [ %add.int, %for.body ], [ %b, %for.body.preheader ]
  %tmp = int2ptr i64 %b.addr.02 to ptr
  %tmp1 = load float, ptr %tmp, align 4
  %mul.i = fmul float %tmp1, 42.000000
  store float %mul.i, ptr %a.addr.03, align 4
  %add = gep inbounds ptr %tmp, 4 x i64 1
  %add.int = ptrtoint ptr %add to i64
  %incdec.ptr = gep inbounds ptr %a.addr.03, 4 x i64 1
  %cmp = icmp ult ptr %incdec.ptr, noread nowrite %a_end
  br i1 %cmp, label %for.body, label %for.end

for.end:
  ret void
}
=>
define void @test1(ptr %a, ptr noread nowrite %a_end, ptr %b.i) {
entry:
  %cmp1 = icmp ult ptr %a, noread nowrite %a_end
  br i1 %cmp1, label %for.body.preheader, label %for.end

for.body.preheader:
  br label %for.body

for.body:
  %a.addr.03 = phi ptr [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ]
  %b.addr.02.in = phi ptr [ %add, %for.body ], [ %b.i, %for.body.preheader ]
  %tmp1 = load float, ptr %b.addr.02.in, align 4
  %mul.i = fmul float %tmp1, 42.000000
  store float %mul.i, ptr %a.addr.03, align 4
  %add = gep inbounds nuw ptr %b.addr.02.in, 1 x i64 4
  %incdec.ptr = gep inbounds nuw ptr %a.addr.03, 1 x i64 4
  %cmp = icmp ult ptr %incdec.ptr, noread nowrite %a_end
  br i1 %cmp, label %for.body, label %for.end

for.end:
  ret void
}
WARNING: slow vcgen! Took 80.44 s
Transformation doesn't verify! (unsound)
ERROR: Source is more defined than target

Example:
ptr %a = pointer(non-local, block_id=1, offset=8) / Address=#x000000000000000c
ptr noread nowrite %a_end = pointer(non-local, block_id=0, offset=13, attrs=3) / Address=#x000000000000000d
ptr %b.i = pointer(non-local, block_id=0, offset=4) / Address=#x0000000000000004

Source:
i1 %cmp1 = #x1 (1)
  >> Jump to %for.body.preheader
i64 %b = #x0000000000000004 (4)
  >> Jump to %for.body
ptr %a.addr.03 = pointer(non-local, block_id=1, offset=8) / Address=#x000000000000000c
i64 %b.addr.02 = #x0000000000000004 (4)
ptr %tmp = phy-ptr(addr=4) / Address=#x0000000000000004
float %tmp1 = poison
float %mul.i = poison
ptr %add = poison
i64 %add.int = poison
ptr %incdec.ptr = pointer(non-local, block_id=1, offset=12) / Address=#x0000000000000010
i1 %cmp = #x0 (0)
  >> Jump to %for.end

SOURCE MEMORY STATE
===================
NON-LOCAL BLOCKS:
Block 0 >	size: 0	align: 4	alloc type: 0	alive: false	address: 0
Block 1 >	size: 15	align: 4	alloc type: 0	alive: true	address: 4
Block 2 >	size: 0	align: 1	alloc type: 0	alive: true	address: 1
Block 3 >	size: 0	align: 1	alloc type: 0	alive: true	address: 2
Block 4 >	size: 0	align: 1	alloc type: 0	alive: true	address: 1

Target:
i1 %cmp1 = #x1 (1)
  >> Jump to %for.body.preheader
  >> Jump to %for.body
ptr %a.addr.03 = pointer(non-local, block_id=1, offset=8) / Address=#x000000000000000c
ptr %b.addr.02.in = pointer(non-local, block_id=0, offset=4) / Address=#x0000000000000004
float %tmp1 = UB triggered!


Pass: InstCombinePass
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=instcombine' '-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_7y5Ry9hN_IVCf.bc"


------------------- SMT STATS -------------------
Num queries: 53
Num invalid: 0
Num skips:   0
Num trivial: 13 (19.7%)
Num timeout: 4 (7.5%)
Num errors:  0 (0.0%)
Num SAT:     39 (73.6%)
Num UNSAT:   10 (18.9%)
Alive2: Transform doesn't verify; aborting!

stderr:

/home/nlopes/alive2/build/opt-alive.sh < /bitbucket/nlopes/llvm/llvm/test/Transforms/InstCombine/intptr2.ll -passes=instcombine -S | /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/InstCombine/intptr2.ll # 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/intptr2.ll

FileCheck error: '<stdin>' is empty.
FileCheck command line:  /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/InstCombine/intptr2.ll

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