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 = inttoptr 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 = inttoptr 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 80.42 s
Transformation doesn't verify! (unsound)
ERROR: Source is more defined than target

Example:
ptr %a = pointer(non-local, block_id=1, offset=0) / Address=#x0000000000000008
ptr noread nowrite %a_end = pointer(non-local, block_id=0, offset=12, attrs=3) / Address=#x000000000000000c
ptr %b.i = pointer(non-local, block_id=0, offset=8) / Address=#x0000000000000008

Source:
i1 %cmp1 = #x1 (1)
  >> Jump to %for.body.preheader
i64 %b = #x0000000000000008 (8)
  >> Jump to %for.body
ptr %a.addr.03 = pointer(non-local, block_id=1, offset=0) / Address=#x0000000000000008
i64 %b.addr.02 = #x0000000000000008 (8)
ptr %tmp = phy-ptr(addr=8) / Address=#x0000000000000008
float %tmp1 = poison
float %mul.i = poison
ptr %add = poison
i64 %add.int = poison
ptr %incdec.ptr = pointer(non-local, block_id=1, offset=4) / Address=#x000000000000000c
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: 4	align: 1	alloc type: 0	alive: true	address: 8
Block 2 >	size: 0	align: 8	alloc type: 0	alive: true	address: 8
Block 3 >	size: 0	align: 2	alloc type: 0	alive: true	address: 14
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=0) / Address=#x0000000000000008
ptr %b.addr.02.in = pointer(non-local, block_id=0, offset=8) / Address=#x0000000000000008
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_583rJLQk_YXra.bc"


------------------- SMT STATS -------------------
Num queries: 51
Num invalid: 0
Num skips:   0
Num trivial: 13 (20.3%)
Num timeout: 4 (7.8%)
Num errors:  0 (0.0%)
Num SAT:     36 (70.6%)
Num UNSAT:   11 (21.6%)
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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