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[Bug middle-end/15855] [3.4/4.0/4.1 Regression] g++ crash with -O2 and -O3 on input file
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Sep 2005 08:14:36 -0000
- Subject: [Bug middle-end/15855] [3.4/4.0/4.1 Regression] g++ crash with -O2 and -O3 on input file
- References: <20040606191038.15855.abegel@cs.berkeley.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From rguenth at gcc dot gnu dot org 2005-09-16 08:14 -------
For a cut-down testcase (the one attached takes too much memory for my box)
detailled mem-report shows
tree-dfa.c:175 (create_stmt_ann) 12749568: 2.0% 2932228:
1.0% 52: 0.0% 0: 0.0% 301574
tree-inline.c:2403 (copy_tree_r) 19285144: 3.0% 0:
0.0% 0: 0.0% 162184: 0.3% 537068
tree-ssanames.c:147 (make_ssa_name) 201319404:31.0% 0:
0.0% 12792: 0.0% 0: 0.0% 3871773
tree-phinodes.c:156 (allocate_phi_node) 250714968:38.6% 0:
0.0% 0: 0.0% 11480: 0.0% 1956706
Total 649892049 291182446
47860808 47260199 12874808
source location Garbage Freed
Leak Overhead Times
where the ssa_names / phi_nodes are all allocated by DOM. From the time-report:
tree SSA incremental : 19.21 (11%) usr 2.02 (30%) sys 21.23 (12%) wall
365332 kB (40%) ggc
tree operand scan : 22.06 (13%) usr 0.26 ( 4%) sys 22.47 (12%) wall
58811 kB ( 6%) ggc
dominator optimization: 19.14 (11%) usr 0.13 ( 2%) sys 19.37 (11%) wall
111380 kB (12%) ggc
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What |Removed |Added
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CC| |rguenth at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15855