llvm dev - Jul 2010 - [LLVMdev] llvm.dbg.declare

Hi folk,

In the Source Level Debugging document,  llvm.dbg.declare takes two
paramters.  "The first argument is the alloca for the variable, cast to a
{}*. The second argument is the llvm.dbg.variable containing the description
of the variable."  The second parameter corresponds to DIVariable, what is
the corresponding LLVM class of the first parameter?    I want to find which
AllocaInst is associated with a given llvm.dbg.declare. Any suggestion?

Thanks,
Neal
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On Sat, Jul 17, 2010 at 12:00 AM, Neal  N. Wang <neal.wang at gmail.com>
wrote:
> Hi folk,
>
> In the Source Level Debugging document,  llvm.dbg.declare takes two
> paramters.  "The first argument is the alloca for the variable, cast
to a
> {}*. The second argument is the llvm.dbg.variable containing the
description
> of the variable."  The second parameter corresponds to DIVariable,
what is
> the corresponding LLVM class of the first parameter?    I want to find
which
> AllocaInst is associated with a given llvm.dbg.declare. Any suggestion?
It is just a cast whose 1st operand is alloca.
-
Devang

Thanks, I also figured it out by inserting a lot of printing statements.  In
"cast to a {}*", what does "{}*" mean?  MDNode?

Neal

What I don't understand is

On Mon, Jul 19, 2010 at 10:03 AM, Devang Patel <devang.patel at
gmail.com>wrote:
> On Sat, Jul 17, 2010 at 12:00 AM, Neal  N. Wang <neal.wang at
gmail.com>
> wrote:
> > Hi folk,
> >
> > In the Source Level Debugging document,  llvm.dbg.declare takes two
> > paramters.  "The first argument is the alloca for the variable,
cast to a
> > {}*. The second argument is the llvm.dbg.variable containing the
> description
> > of the variable."  The second parameter corresponds to
DIVariable, what
> is
> > the corresponding LLVM class of the first parameter?    I want to find
> which
> > AllocaInst is associated with a given llvm.dbg.declare. Any
suggestion?
>
> It is just a cast whose 1st operand is alloca.
> -
> Devang
>
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