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Kirill Smelkov
bpftrace
Commits
6f4a2a9c
Commit
6f4a2a9c
authored
7 years ago
by
Alastair Robertson
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codegen: Implement count()
parent
fe6a7209
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src/codegen_llvm.cpp
src/codegen_llvm.cpp
+17
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src/codegen_llvm.cpp
View file @
6f4a2a9c
...
...
@@ -54,7 +54,7 @@ void CodegenLLVM::visit(Builtin &builtin)
void
CodegenLLVM
::
visit
(
Call
&
call
)
{
expr_
=
b_
.
getInt64
(
0
);
abort
(
);
}
void
CodegenLLVM
::
visit
(
Map
&
map
)
...
...
@@ -124,6 +124,22 @@ void CodegenLLVM::visit(AssignMapStatement &assignment)
void
CodegenLLVM
::
visit
(
AssignMapCallStatement
&
assignment
)
{
Map
&
map
=
*
assignment
.
map
;
Call
&
call
=
*
assignment
.
call
;
if
(
call
.
func
==
"count"
)
{
AllocaInst
*
key
=
b_
.
CreateAllocaBPF
(
b_
.
getInt64Ty
());
b_
.
CreateStore
(
b_
.
getInt64
(
0
),
key
);
// TODO variable key
Value
*
oldval
=
b_
.
CreateMapLookupElem
(
map
,
key
);
AllocaInst
*
newval
=
b_
.
CreateAllocaBPF
(
b_
.
getInt64Ty
());
b_
.
CreateStore
(
b_
.
CreateAdd
(
oldval
,
b_
.
getInt64
(
1
)),
newval
);
b_
.
CreateMapUpdateElem
(
map
,
key
,
newval
);
}
else
{
abort
();
}
}
void
CodegenLLVM
::
visit
(
Predicate
&
pred
)
...
...
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