llvm dev - Jun 2010 - [LLVMdev] Extracting Metadata of Variables

Hi,

Im new to llvm and I'm using llvm-2.6 and I know how to extract the metadata
in the stoppoints but what I'm interested in is the meta data regarding a
local variable. I know that the @llvm.dgb.declare such as:

call void @llvm.dbg.declare({ }* %2, { }* bitcast (%llvm.dbg.variable.type*
@llvm.dbg.variable9 to { }*))

links to meta data for  @llvm.dbg.variable9 which is:

@llvm.dbg.variable9 = internal constant %llvm.dbg.variable.type { i32
459008, { }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to {
}*), i8* getelementptr inbounds ([2 x i8]* @.str8, i32 0, i32 0), { }*
bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i32
13, { }* bitcast (%llvm.dbg.basictype.type* @llvm.dbg.basictype to { }*) },
section "llvm.metadata" ; <%llvm.dbg.variable.type*> [#uses=1]

now what I'm interested is the line number "i32 13" shown in the
metadata of
@llvm.dbg.variable9. I was wondering if there is a way to do so.?

Thank you

Samaneh

-- 
View this message in context:
http://old.nabble.com/Extracting-Metadata-of-Variables-tp28944619p28944619.html
Sent from the LLVM - Dev mailing list archive at Nabble.com.

On Sun, Jun 20, 2010 at 7:34 PM, Samaneh <snavabpo at uwaterloo.ca>
wrote:
>
> Hi,
>
> Im new to llvm and I'm using llvm-2.6 and I know how to extract the
metadata
> in the stoppoints but what I'm interested in is the meta data regarding
a
> local variable. I know that the @llvm.dgb.declare such as:
>
> call void @llvm.dbg.declare({ }* %2, { }* bitcast (%llvm.dbg.variable.type*
> @llvm.dbg.variable9 to { }*))
>
> links to meta data for  @llvm.dbg.variable9 which is:
>
> @llvm.dbg.variable9 = internal constant %llvm.dbg.variable.type { i32
> 459008, { }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to {
> }*), i8* getelementptr inbounds ([2 x i8]* @.str8, i32 0, i32 0), { }*
> bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i32
> 13, { }* bitcast (%llvm.dbg.basictype.type* @llvm.dbg.basictype to { }*) },
> section "llvm.metadata" ; <%llvm.dbg.variable.type*>
[#uses=1]
>
> now what I'm interested is the line number "i32 13" shown in
the metadata of
> @llvm.dbg.variable9. I was wondering if there is a way to do so.?
>
Use DIVariable from DebugInfo.h
-
Devang