From: Tom de Vries <Tom_deVries@mentor.com>
To: Richard Biener <rguenther@suse.de>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>, Jan Hubicka <hubicka@ucw.cz>
Subject: [PATCH, PR70161] Fix fdump-ipa-all-graph
Date: Mon, 14 Mar 2016 15:33:00 -0000 [thread overview]
Message-ID: <56E6D97F.3030606@mentor.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 1020 bytes --]
Hi,
this patch fixes PR70161, a 4.9/5/6 regression.
Currently when using -fdump-ipa-all-graph, the compiler ICEs in
execute_function_dump when testing for pass->graph_dump_initialized,
because pass == NULL.
The patch fixes:
- the ICE by setting the pass argument in the call to
execute_function_dump in execute_one_ipa_transform_pass
- a subsequent ICE (triggered with -fipa-pta) by saving, resetting and
restoring dump_file_name in cgraph_node::get_body, alongside the
saving and restoring of the dump_file variable.
- the duplicate edges in the subsequently generated dot file by
ensuring that execute_function_dump is called only once per function
per pass. [ Note that this bit also has an effect for the normal dump
files for the ipa passes with transform function. For those functions,
atm execute_function_dump is called both after execute and after
transform. With the patch, it's only called after transform. ]
Bootstrapped and reg-tested on x86_64.
OK for stage4?
Thanks,
- Tom
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[-- Type: text/x-patch, Size: 2449 bytes --]
Fix fdump-ipa-all-graph
2016-03-14 Tom de Vries <tom@codesourcery.com>
PR ipa/70161
* cgraph.c (cgraph_node::get_body): Save, reset and restore
dump_file_name.
* passes.c (execute_one_ipa_transform_pass): Add missing argument to
execute_function_dump.
(execute_one_pass): Don't dump function if it will be dumped after ipa
transform.
---
gcc/cgraph.c | 3 +++
gcc/passes.c | 14 +++++++-------
2 files changed, 10 insertions(+), 7 deletions(-)
diff --git a/gcc/cgraph.c b/gcc/cgraph.c
index 7727313..f187913 100644
--- a/gcc/cgraph.c
+++ b/gcc/cgraph.c
@@ -3365,7 +3365,9 @@ cgraph_node::get_body (void)
{
opt_pass *saved_current_pass = current_pass;
FILE *saved_dump_file = dump_file;
+ const char *saved_dump_file_name = dump_file_name;
int saved_dump_flags = dump_flags;
+ dump_file_name = NULL;
push_cfun (DECL_STRUCT_FUNCTION (decl));
execute_all_ipa_transforms ();
@@ -3377,6 +3379,7 @@ cgraph_node::get_body (void)
current_pass = saved_current_pass;
dump_file = saved_dump_file;
+ dump_file_name = saved_dump_file_name;
dump_flags = saved_dump_flags;
}
return updated;
diff --git a/gcc/passes.c b/gcc/passes.c
index bbe35b3..5aa2b32 100644
--- a/gcc/passes.c
+++ b/gcc/passes.c
@@ -2219,7 +2219,7 @@ execute_one_ipa_transform_pass (struct cgraph_node *node,
check_profile_consistency (pass->static_pass_number, 1, true);
if (dump_file)
- do_per_function (execute_function_dump, NULL);
+ do_per_function (execute_function_dump, pass);
pass_fini_dump_file (pass);
current_pass = NULL;
@@ -2356,15 +2356,15 @@ execute_one_pass (opt_pass *pass)
check_profile_consistency (pass->static_pass_number, 1, true);
verify_interpass_invariants ();
- if (dump_file)
- do_per_function (execute_function_dump, pass);
- if (pass->type == IPA_PASS)
+ if (pass->type == IPA_PASS
+ && ((ipa_opt_pass_d *)pass)->function_transform)
{
struct cgraph_node *node;
- if (((ipa_opt_pass_d *)pass)->function_transform)
- FOR_EACH_FUNCTION_WITH_GIMPLE_BODY (node)
- node->ipa_transforms_to_apply.safe_push ((ipa_opt_pass_d *)pass);
+ FOR_EACH_FUNCTION_WITH_GIMPLE_BODY (node)
+ node->ipa_transforms_to_apply.safe_push ((ipa_opt_pass_d *)pass);
}
+ else if (dump_file)
+ do_per_function (execute_function_dump, pass);
if (!current_function_decl)
symtab->process_new_functions ();
next reply other threads:[~2016-03-14 15:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-14 15:33 Tom de Vries [this message]
2016-03-15 11:37 ` Richard Biener
2016-03-17 11:16 ` Tom de Vries
2016-03-17 11:19 ` Richard Biener
2016-03-18 9:33 ` Tom de Vries
2016-03-18 9:45 ` Tom de Vries
2016-04-17 6:09 ` [PING, testsuite] Add dot-file scan to test-case Tom de Vries
2016-04-18 7:30 ` Richard Biener
2016-04-18 7:59 ` Tom de Vries
2016-04-18 8:40 ` Richard Biener
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