Initial commit for Europar 2021 GCC version
This was the version of GCC used in the Europar 2021 paper with regard
to GCC paralelism. Future commits are possible, so look in the paper the
commit hash of the version was used.
diff --git a/gcc/.cgraphunit.c.swp b/gcc/.cgraphunit.c.swp
new file mode 100644
index 0000000..83c78e6
--- /dev/null
+++ b/gcc/.cgraphunit.c.swp
Binary files differ
diff --git a/gcc/.lto-cgraph.c.swo b/gcc/.lto-cgraph.c.swo
new file mode 100644
index 0000000..a87c6db
--- /dev/null
+++ b/gcc/.lto-cgraph.c.swo
Binary files differ
diff --git a/gcc/cgraphunit.c b/gcc/cgraphunit.c
index 73e4bed..12d2d19 100644
--- a/gcc/cgraphunit.c
+++ b/gcc/cgraphunit.c
@@ -2794,10 +2794,22 @@
bool jobserver = false;
bool job_auto = false;
int num_jobs = -1;
+ unsigned long long insns = 0;
+ cgraph_node *cnode;
if (!flag_parallel_jobs || !split_outputs)
return false;
+ FOR_EACH_FUNCTION_WITH_GIMPLE_BODY (cnode)
+ {
+ ipa_size_summary *ss = ipa_size_summaries->get (cnode);
+ if (!cnode->inlined_to && ss)
+ insns += ss->size;
+ }
+
+ if (insns < (unsigned long long) param_min_partition_size)
+ return false;
+
if (!strcmp (flag_parallel_jobs, "auto"))
{
jobserver = jobserver_initialize ();
diff --git a/gcc/gcc.c b/gcc/gcc.c
index c276a11..ba942c0 100644
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -3405,14 +3405,7 @@
argv[argc++] = extra_argument;
}
- if (have_c)
- {
- argv[argc++] = "-fPIE";
- argv[argc++] = "-fPIC";
- }
-
argv[argc] = NULL;
-
commands[0].argv = argv;
}
@@ -3977,7 +3970,7 @@
/* FIXME: Interact with GNU Jobserver if necessary. */
commands_batch = commands;
- n = flag_parallel_jobs? 1: n_commands;
+ n = n_commands;
for (int i = 0; i < n_commands; i += n)
{
diff --git a/gcc/ipa-split.c b/gcc/ipa-split.c
index 973e72c..09e9eb9 100644
--- a/gcc/ipa-split.c
+++ b/gcc/ipa-split.c
@@ -1909,8 +1909,12 @@
{
/* When doing profile feedback, we want to execute the pass after profiling
is read. So disable one in early optimization. */
- return (flag_partial_inlining
- && !profile_arc_flag && !flag_branch_probabilities);
+
+ /* Disabled due to an issue regarding how the partitioner applier
+ handle clones generated by this pass. */
+ /*return (flag_partial_inlining
+ && !profile_arc_flag && !flag_branch_probabilities); */
+ return false;
}
} // anon namespace
@@ -1968,8 +1972,13 @@
{
/* We don't need to split when profiling at all, we are producing
lousy code anyway. */
- return (flag_partial_inlining
- && flag_branch_probabilities);
+
+ /* Disabled due to an issue regarding how the partitioner applier
+ handle clones generated by this pass. */
+ /* return (flag_partial_inlining
+ && flag_branch_probabilities); */
+
+ return false;
}
} // anon namespace
