From 22af35f62c644e90be9ed6c20fc598ac88f5b987 Mon Sep 17 00:00:00 2001 From: hubicka Date: Thu, 25 Jan 2018 17:24:06 +0000 Subject: [PATCH] PR middle-end/83055 * predict.c (drop_profile): Do not push/pop cfun; update also node->count. (handle_missing_profiles): Fix logic looking for zero profiles. * gcc.dg/torture/pr83055.c: New testcase. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@257059 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 7 +++++++ gcc/predict.c | 23 ++++++++++------------- gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/gcc.dg/torture/pr83055.c | 13 +++++++++++++ 4 files changed, 35 insertions(+), 13 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/torture/pr83055.c diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 65ef87ad44b..cc7e48c442f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2018-01-25 Jan Hubicka + + PR middle-end/83055 + * predict.c (drop_profile): Do not push/pop cfun; update also + node->count. + (handle_missing_profiles): Fix logic looking for zero profiles. + 2018-01-25 Jakub Jelinek PR middle-end/83977 diff --git a/gcc/predict.c b/gcc/predict.c index 25629db89f8..79ee71fac97 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -3311,32 +3311,28 @@ drop_profile (struct cgraph_node *node, profile_count call_count) } basic_block bb; - push_cfun (DECL_STRUCT_FUNCTION (node->decl)); - if (flag_guess_branch_prob) + if (opt_for_fn (node->decl, flag_guess_branch_prob)) { bool clear_zeros - = ENTRY_BLOCK_PTR_FOR_FN - (DECL_STRUCT_FUNCTION (node->decl))->count.nonzero_p (); + = !ENTRY_BLOCK_PTR_FOR_FN (fn)->count.nonzero_p (); FOR_ALL_BB_FN (bb, fn) if (clear_zeros || !(bb->count == profile_count::zero ())) bb->count = bb->count.guessed_local (); - DECL_STRUCT_FUNCTION (node->decl)->cfg->count_max = - DECL_STRUCT_FUNCTION (node->decl)->cfg->count_max.guessed_local (); + fn->cfg->count_max = fn->cfg->count_max.guessed_local (); } else { FOR_ALL_BB_FN (bb, fn) bb->count = profile_count::uninitialized (); - DECL_STRUCT_FUNCTION (node->decl)->cfg->count_max - = profile_count::uninitialized (); + fn->cfg->count_max = profile_count::uninitialized (); } - pop_cfun (); struct cgraph_edge *e; for (e = node->callees; e; e = e->next_callee) e->count = gimple_bb (e->call_stmt)->count; for (e = node->indirect_calls; e; e = e->next_callee) e->count = gimple_bb (e->call_stmt)->count; + node->count = ENTRY_BLOCK_PTR_FOR_FN (fn)->count; profile_status_for_fn (fn) = (flag_guess_branch_prob ? PROFILE_GUESSED : PROFILE_ABSENT); @@ -3373,12 +3369,12 @@ handle_missing_profiles (void) gcov_type max_tp_first_run = 0; struct function *fn = DECL_STRUCT_FUNCTION (node->decl); - if (!(node->count == profile_count::zero ())) + if (node->count.ipa ().nonzero_p ()) continue; for (e = node->callers; e; e = e->next_caller) - if (e->count.initialized_p () && e->count > 0) + if (e->count.ipa ().initialized_p () && e->count.ipa () > 0) { - call_count = call_count + e->count; + call_count = call_count + e->count.ipa (); if (e->caller->tp_first_run > max_tp_first_run) max_tp_first_run = e->caller->tp_first_run; @@ -3411,7 +3407,8 @@ handle_missing_profiles (void) struct cgraph_node *callee = e->callee; struct function *fn = DECL_STRUCT_FUNCTION (callee->decl); - if (callee->count > 0) + if (!(e->count.ipa () == profile_count::zero ()) + && callee->count.ipa ().nonzero_p ()) continue; if ((DECL_COMDAT (callee->decl) || DECL_EXTERNAL (callee->decl)) && fn && fn->cfg diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 222df9d3db9..1a62d91ab5e 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2018-01-25 Jan Hubicka + + PR middle-end/83055 + * gcc.dg/torture/pr83055.c: New testcase. + 2018-01-25 Jakub Jelinek PR c++/84031 diff --git a/gcc/testsuite/gcc.dg/torture/pr83055.c b/gcc/testsuite/gcc.dg/torture/pr83055.c new file mode 100644 index 00000000000..9bc71c6cddf --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr83055.c @@ -0,0 +1,13 @@ +/* { dg-do compile } */ +/* { dg-additional-options "-fprofile-generate" } */ + +void __attribute__ ((__cold__)) a (void); +void b (void); +void __attribute__ ((noinline)) c (void) { a (); } + +void +d (void) +{ + b (); + c (); +} -- 2.11.4.GIT