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[PATCH]: Add more timevars to aliasing
- From: "Daniel Berlin" <dberlin at dberlin dot org>
- To: "GCC Patches" <gcc-patches at gcc dot gnu dot org>
- Date: Sat, 28 Jul 2007 00:54:19 -0700
- Subject: [PATCH]: Add more timevars to aliasing
The following splits "tree alias analysis"'s pieces into more
fine-grained timevars, since each individual piece of what it does can
take a very long time, and because it's really performing a bunch of
separate passes.
Bootstrapped and regtested on i686-darwin
Committed to mainline
2007-07-28 Daniel Berlin <dberlin@dberlin.org>
* timevar.def: Add TV_CALL_CLOBBER, TV_FLOW_SENSITIVE,
TV_FLOW_INSENSITIVE.
* tree-ssa-alias.c (compute_call_clobbered): Push/pop
TV_CALL_CLOBBER.
(compute_flow_sensitive_aliasing): Ditto for TV_FLOW_SENSITIVE.
(compute_flow_insensitive_aliasing): Ditto for
TV_FLOW_INSENSITIVE.
Index: tree-ssa-alias.c
===================================================================
--- tree-ssa-alias.c (revision 127012)
+++ tree-ssa-alias.c (working copy)
@@ -573,6 +573,7 @@ compute_call_clobbered (struct alias_inf
VEC (tree, heap) *worklist = NULL;
VEC(int,heap) *worklist2 = NULL;
+ timevar_push (TV_CALL_CLOBBER);
set_initial_properties (ai);
init_transitive_clobber_worklist (&worklist, &worklist2);
while (VEC_length (tree, worklist) != 0)
@@ -586,6 +587,7 @@ compute_call_clobbered (struct alias_inf
VEC_free (tree, heap, worklist);
VEC_free (int, heap, worklist2);
compute_tag_properties ();
+ timevar_pop (TV_CALL_CLOBBER);
}
@@ -2206,6 +2208,7 @@ compute_flow_sensitive_aliasing (struct
size_t i;
tree ptr;
+ timevar_push (TV_FLOW_SENSITIVE);
set_used_smts ();
for (i = 0; VEC_iterate (tree, ai->processed_ptrs, i, ptr); i++)
@@ -2241,6 +2244,7 @@ compute_flow_sensitive_aliasing (struct
}
}
}
+ timevar_pop (TV_FLOW_SENSITIVE);
}
@@ -2276,6 +2280,7 @@ compute_flow_insensitive_aliasing (struc
{
size_t i;
+ timevar_push (TV_FLOW_INSENSITIVE);
/* For every pointer P, determine which addressable variables may alias
with P's symbol memory tag. */
for (i = 0; i < ai->num_pointers; i++)
@@ -2384,6 +2389,7 @@ compute_flow_insensitive_aliasing (struc
}
}
+ timevar_pop (TV_FLOW_INSENSITIVE);
}
Index: timevar.def
===================================================================
--- timevar.def (revision 127012)
+++ timevar.def (working copy)
@@ -87,6 +87,9 @@ DEFTIMEVAR (TV_TREE_STORE_COPY_PROP , "
DEFTIMEVAR (TV_FIND_REFERENCED_VARS , "tree find ref. vars")
DEFTIMEVAR (TV_TREE_PTA , "tree PTA")
DEFTIMEVAR (TV_TREE_MAY_ALIAS , "tree alias analysis")
+DEFTIMEVAR (TV_CALL_CLOBBER , "tree call clobbering")
+DEFTIMEVAR (TV_FLOW_SENSITIVE , "tree flow sensitive alias")
+DEFTIMEVAR (TV_FLOW_INSENSITIVE , "tree flow insensitive alias")
DEFTIMEVAR (TV_MEMORY_PARTITIONING , "tree memory partitioning")
DEFTIMEVAR (TV_TREE_INSERT_PHI_NODES , "tree PHI insertion")
DEFTIMEVAR (TV_TREE_SSA_REWRITE_BLOCKS, "tree SSA rewrite")