[llvm-dev] Instruction does not dominate all uses!

[Dipanjan Das via llvm-dev]

LLVM 3.8.0, Ubuntu 16.04.2, 64 bit is being used to instrument IR.

====================================================

define i32 @bar() #0 {
entry:
  %var = alloca [3 x i32], align 4
  %0 = bitcast [3 x i32]* %var to i8*
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* bitcast ([3 x i32]*
@bar.var to i8*), i64 12, i32 4, i1 false)
  %arrayidx = getelementptr inbounds [3 x i32], [3 x i32]* %var, i64 0, i64
0
  %1 = load i32, i32* %arrayidx, align 4
  ret i32 %1
}

=====================================================

if (AllocaInst *alloca_inst = dyn_cast<AllocaInst>(&I)) {
                   .
                   .
                   .
                    Value* var_addr = builder.CreateBitCast(alloca_inst,
Type::getInt8PtrTy(Ctx));
                   .
                   .
                   .
                }

=====================================================

I am receiving the following error:

Instruction does not dominate all uses!

  %var = alloca [3 x i32], align 4
  %0 = bitcast [3 x i32]* %var to i8*

=====================================================

I can't even see any conditional statement in the IR. Can someone please
point out what I am missing?

-- 

Thanks & Regards,
Dipanjan
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