* [PATCH] Add debug counter for IPA bits CP.
@ 2020-08-11 7:04 Martin Liška
2020-08-11 9:04 ` Jan Hubicka
0 siblings, 1 reply; 3+ messages in thread
From: Martin Liška @ 2020-08-11 7:04 UTC (permalink / raw)
To: gcc-patches
Hey.
I'm debugging PR96482 and it would be handy for me to have a debug counter
for the problematic transformation.
Ready for master?
Thanks,
Martin
gcc/ChangeLog:
* dbgcnt.def (DEBUG_COUNTER): Add ipa_cp_bits.
* ipa-cp.c (ipcp_store_bits_results): Use it when we store known
bits for parameters.
---
gcc/dbgcnt.def | 1 +
gcc/ipa-cp.c | 11 ++++++++---
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/gcc/dbgcnt.def b/gcc/dbgcnt.def
index 3998c9636aa..cf8775b2b66 100644
--- a/gcc/dbgcnt.def
+++ b/gcc/dbgcnt.def
@@ -170,6 +170,7 @@ DEBUG_COUNTER (if_after_combine)
DEBUG_COUNTER (if_after_reload)
DEBUG_COUNTER (if_conversion)
DEBUG_COUNTER (if_conversion_tree)
+DEBUG_COUNTER (ipa_cp_bits)
DEBUG_COUNTER (ipa_sra_params)
DEBUG_COUNTER (ipa_sra_retvalues)
DEBUG_COUNTER (ira_move)
diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c
index 10cc59509d5..945a69977f3 100644
--- a/gcc/ipa-cp.c
+++ b/gcc/ipa-cp.c
@@ -123,6 +123,7 @@ along with GCC; see the file COPYING3. If not see
#include "tree-ssa-ccp.h"
#include "stringpool.h"
#include "attribs.h"
+#include "dbgcnt.h"
template <typename valtype> class ipcp_value;
@@ -5788,9 +5789,13 @@ ipcp_store_bits_results (void)
ipa_bits *jfbits;
if (plats->bits_lattice.constant_p ())
- jfbits
- = ipa_get_ipa_bits_for_value (plats->bits_lattice.get_value (),
- plats->bits_lattice.get_mask ());
+ {
+ jfbits
+ = ipa_get_ipa_bits_for_value (plats->bits_lattice.get_value (),
+ plats->bits_lattice.get_mask ());
+ if (!dbg_cnt (ipa_cp_bits))
+ jfbits = NULL;
+ }
else
jfbits = NULL;
--
2.28.0
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] Add debug counter for IPA bits CP.
2020-08-11 7:04 [PATCH] Add debug counter for IPA bits CP Martin Liška
@ 2020-08-11 9:04 ` Jan Hubicka
2020-08-11 9:50 ` Martin Liška
0 siblings, 1 reply; 3+ messages in thread
From: Jan Hubicka @ 2020-08-11 9:04 UTC (permalink / raw)
To: Martin Liška; +Cc: gcc-patches
> Hey.
>
> I'm debugging PR96482 and it would be handy for me to have a debug counter
> for the problematic transformation.
>
> Ready for master?
Looks good to me. Perhaps it would be more systematic to add them to
the remaining propagators as well - bugs tends to pop up from time to
time related to those.
Honza
> Thanks,
> Martin
>
> gcc/ChangeLog:
>
> * dbgcnt.def (DEBUG_COUNTER): Add ipa_cp_bits.
> * ipa-cp.c (ipcp_store_bits_results): Use it when we store known
> bits for parameters.
> ---
> gcc/dbgcnt.def | 1 +
> gcc/ipa-cp.c | 11 ++++++++---
> 2 files changed, 9 insertions(+), 3 deletions(-)
>
> diff --git a/gcc/dbgcnt.def b/gcc/dbgcnt.def
> index 3998c9636aa..cf8775b2b66 100644
> --- a/gcc/dbgcnt.def
> +++ b/gcc/dbgcnt.def
> @@ -170,6 +170,7 @@ DEBUG_COUNTER (if_after_combine)
> DEBUG_COUNTER (if_after_reload)
> DEBUG_COUNTER (if_conversion)
> DEBUG_COUNTER (if_conversion_tree)
> +DEBUG_COUNTER (ipa_cp_bits)
> DEBUG_COUNTER (ipa_sra_params)
> DEBUG_COUNTER (ipa_sra_retvalues)
> DEBUG_COUNTER (ira_move)
> diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c
> index 10cc59509d5..945a69977f3 100644
> --- a/gcc/ipa-cp.c
> +++ b/gcc/ipa-cp.c
> @@ -123,6 +123,7 @@ along with GCC; see the file COPYING3. If not see
> #include "tree-ssa-ccp.h"
> #include "stringpool.h"
> #include "attribs.h"
> +#include "dbgcnt.h"
> template <typename valtype> class ipcp_value;
> @@ -5788,9 +5789,13 @@ ipcp_store_bits_results (void)
> ipa_bits *jfbits;
> if (plats->bits_lattice.constant_p ())
> - jfbits
> - = ipa_get_ipa_bits_for_value (plats->bits_lattice.get_value (),
> - plats->bits_lattice.get_mask ());
> + {
> + jfbits
> + = ipa_get_ipa_bits_for_value (plats->bits_lattice.get_value (),
> + plats->bits_lattice.get_mask ());
> + if (!dbg_cnt (ipa_cp_bits))
> + jfbits = NULL;
> + }
> else
> jfbits = NULL;
> --
> 2.28.0
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] Add debug counter for IPA bits CP.
2020-08-11 9:04 ` Jan Hubicka
@ 2020-08-11 9:50 ` Martin Liška
0 siblings, 0 replies; 3+ messages in thread
From: Martin Liška @ 2020-08-11 9:50 UTC (permalink / raw)
To: Jan Hubicka; +Cc: gcc-patches, Martin Jambor
On 8/11/20 11:04 AM, Jan Hubicka wrote:
> Looks good to me. Perhaps it would be more systematic to add them to
> the remaining propagators as well - bugs tends to pop up from time to
> time related to those.
Works for me.
@Martin: Can you please add them?
Thanks,
Martin
^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-08-11 7:04 [PATCH] Add debug counter for IPA bits CP Martin Liška
2020-08-11 9:04 ` Jan Hubicka
2020-08-11 9:50 ` Martin Liška
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